Dachverband Lehm is a German-based organization, established in 1992, specializing in earthen construction, particularly the use of rammed earth (Lehm in German) as a modern, sustainable building material. The company focuses on reviving traditional earth-building techniques while integrating contemporary engineering and architectural practices. Based in Germany, Dachverband Lehm works closely with architects, designers, and builders to create structurally sound and aesthetically refined rammed earth walls for residential, cultural, and commercial projects.
The organization emphasizes the environmental benefits of earth construction, including low embodied energy, recyclability, and the use of locally sourced materials. Their work demonstrates how rammed earth can meet modern building standards while maintaining a strong connection to natural materials and regional identity.
Dachverband Lehm maintains an extensive online resource through their website, earthbuilding.info. The site offers comprehensive information on traditional and contemporary earthen construction techniques, material selection, and design considerations. It also features educational content, including training programs, workshops, and vocational courses for professionals and enthusiasts interested in sustainable building practices. Visitors can explore international research initiatives, case studies, and examples of earth architecture, along with guidelines, standards, and regulatory information that support the safe and effective use of rammed earth in modern construction.
Zawiyyet Al Mayyiteen (also known as Zawyet el-Sultan or Zawyet el-Amwat) is located on the southern edge of the city of Minya and is situated between the Nile river and desert cliffs to the East. Often called the “City of the Dead,” it is considered one of the largest cemeteries in the world, measuring nearly 4 kilometers long and 300 meters wide, covering roughly 1.2 square kilometers. Zawiyyet Al Mayyiteen is not just a modern cemetery; it is built atop layers of ancient history spanning nearly 5,000 years.
The cemetery is 4 kilometers long and 300 meters wide and is situated between the Nile and Desert Cliffs.
The site is easily identifiable by the repetition of small scaled domes made of mudbricks and plaster. Each domed mausoleum belongs to a different family and ancestral lineage. The highly concentrated sea of domes is easily read as a single web structure or pattern resembling the geological landscape, its growth seems fairly gradual and responsive to the site.
Looking at the Nile from within the cemetery.
This style of burial is traditional for the region, used by both the local Muslim and Coptic Christian communities, making it a rare site of shared funerary heritage.
Mausoleums against the cliffside.
During religious holidays and annual festivals, thousands of people from Minya travel to the site to visit their ancestors, often staying in the mausoleums to share meals and offer prayers.
Interior view of domed structure.Mudbrick and plaster in various conditions.
The unique aesthetic of the domes has long inspired artists and photographers. The nearby village is also home to the museum of the famous Egyptian folk artist Hassan el-Shark, whose colorful paintings often depict the daily life and spiritual traditions of the Minya region.
Asir, or officially the Aseer Province in Saudi Arabia, was incorporated into the Kingdom of Saudi Arabia in 1934. has a population of 2.2 million. The province has a long history with artifacts dating to the bronze age. The region is known for its tribal independence, agriculture, and high-altitude culture, situated on a high plateau.
The Aseer region is characterized by a cooler climate with considerable seasonal rain. It has approximately 400 traditional settlements, many located on the high plateau at altitudes greater than 2000 meters. Buildings generally took the form of square, multistory towers. Four principal construction types developed based on the local microclimate and available materials: mud tower houses, stone rubble houses, stone apron houses, and mud and slate tower buildings.
Rijal Almaa is a town that emerged 900 ye ars ago and, given its strategic location on the route to Mecca from Yemen, it became a place of commercial exchange. The buildings are composed of stone, mud, and wood, and are constructed up to six floors. They are detailed with with white window frames, wooden shutterns, and decorative mofits, details that are characteristic of the region.
Rijal Almaa Heritage Village consists of around 60 traditional stone, mud, and wood buildings.White window frames and checkered details
Typical houses in the mountainous Asir province were made of mud reinforced with camel hair. The lower areas of the buildings were made from stone, with smaller flat stones wedged between bigger ones. The upper areas have a local flat stone between the bricks. Plaster was usually applied to the outside of the building to cover the mud bricks.
Al-Qatt Al-Asiri is a traditional interior wall decoration of the region. It is a spontaneous art technique carried out largely by women. It is typically practiced on rooms of visiting guests. Women invite female relatives of various age groups to help them in their homes, thereby transmitting this knowledge from generation to generation. The base is usually white gypsum and the patterns consist of icons of geometric shapes and symbols.
The Saudi government has developed set of architectural and urban guidelines and requirements that help guide the design and urban development process to align with the authentic local architectural style of each geographic area across the Kingdom. Guidelines, maps, and more information can be found here: https://architsaudi.dasc.gov.sa/ar
Located in Hiwali – a small rural settlement of about 25 farming households deep in the Satmala mountain range in India – the Hiwali school was initiated by a joint venture by the Give Welfare Organization and Armstrong Robotics & Technologies. Every aspect of this project was unique – starting from the site being a narrow rural strip only accessible via a 50 ft hike from the village road to the actual use case of the building – not just a normal school but somewhat of a daycare functioning 10 hours a day, 365 days a year. The school serves as a “home base” for the remarkable teacher Keshav Gavit – known for his innovative teaching methods and his students who write with both hands and memorize over a thousand tables.
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The design, starting with the water moat that protects the site from runoff, is extremely adaptive to the environment and sensitive to the materials that are easily accessible yet still retain desirable qualities. Modular blocks shown below house the office, computer room, science room, projector room, and library, each arranged diagonally to allow for both expansion towards the mountain and to protect and shape the sometimes aggressive winds.
pkinception
The exposed brick walls of these modules share the load for a gently sloping roof that zigzags over the school, allowing for a very open, inside-and-out relationship everywhere within the school – shaping areas that are interconnected and flexible, while still maintaining focused spaces required for a school, spaces and volumes shifting between 5 and 8 feet – in scale for the children that use the space. Materially, the school is very interesting – the bricks that comprise most of the modules avoid the use of ubiquitous reinforced concrete to shift towards a local production, but also retain excellent thermal lag – absorbing the daytime heat and radiating it during the cool mountain evenings. These bricks are left entirely exposed on both interior and exterior surfaces, allowing for easy maintenance and the avoidance of commercial plasters, which degrade and are expensive.
The cow dung and earth flooring present in the high plinth allow for comfort for both sitting and sleeping. This application of mud and cow-dung paste, often called leepan, is an ancient practice known for not only thermal mass properties but for insect-repellent and antiseptic benefits as well. Every part of the building is designed to be used and maintained, even the exposed brick being an easy platform for nailing boards onto, was intentional.
Proto-architectural Regenerative Material Models Reimagining Architecture Through Earth, Fiber, and Recipe-Based Making
Completed during a Visiting Research Fellowship at University of Edinburgh (2024–2025), Proto-architectural Regenerative Material Models explores a speculative territory between architecture and sculpture. These works resist conventional expectations of scale, program, and durability, instead positioning themselves as material inquiries, asking not what buildings are, but what they could become.
Freed from structural obligation and weathering performance, the objects foreground a central question: what if regenerative materials were recombined in new ways? Each piece operates as a tactile hypothesis, testing the expressive and constructive potential of earth-based systems when paired with other natural materials such as hempcrete, timber, and thatch.
The models are constructed using traditional recipes derived from vernacular earth and fiber building practices. Materials are hand-mixed and compacted into custom wooden formwork, emphasizing labor, tactility, and process over industrial precision. Across the series, assemblies include combinations such as clay-rich mass earth with straw, engineered soil composites, and hybrid systems integrating hempcrete within timber frames.
Built from modest, heterogeneous, and locally sourced materials, the work repositions natural construction systems as both viable and desirable. In doing so, it challenges the dominance of high-carbon, industrialized materials that rely on globalized supply chains, proposing instead a materially circular and sensorially rich alternative.
Expanding on the research, the Archi-fringe Reciprocities Exhibition frames earth construction through the lens of culinary practice. Here, building becomes analogous to cooking: a process of combining ingredients, adjusting mixtures, and refining techniques.
The exhibition presents four proto-architectural models alongside their corresponding “recipes,” detailing ingredient ratios and preparation methods for mass earth, light earth, and rammed earth systems. Rather than isolating final objects, the exhibition foregrounds process—displaying formwork, templates, tamping tools, and even drop cloths repurposed as tapestries. A continuous “how-to” video further demystifies the act of making.
Installed within a former steelworks along Edinburgh’s canal, the exhibition integrates seamlessly into its industrial context. Notably, when two models were damaged in transit, they were simply reconstituted on site—crushed, rehydrated, and re-tamped—demonstrating the inherently circular lifecycle of earth materials.
The research continues through Woolly Walls, Forgotten Fleece, a traveling exhibition that revisits Scotland’s largely forgotten tradition of fiber-reinforced earth construction. These architectural-sculptural objects are composed of earth, clay, stone dust, hemp shiv, and sheep’s wool—reinterpreting the historic mudwall or cob technique.
In this contemporary adaptation, carded wool fleece functions as a stabilizing agent, introducing tensile strength while producing a distinctive soft, tactile surface. The resulting textures invite touch, challenging the visual dominance of architectural representation and reintroducing haptic engagement as a core spatial quality.
Each piece is fabricated through an intensive manual process: freshly shorn wool is washed, carded, and combined with earth-based mixtures before being tamped into custom formwork. The exhibition presents a range of “recipes,” each generating variations in color, density, and texture, accompanied by collaged material studies.
While not scaled building models in a conventional sense, the works suggest alternative futures for construction—ones grounded in locality, circularity, and material intelligence. As the exhibition travels across Scotland—from Langholm to Dundee, Dumfries to Thurso—it reactivates regional craft knowledge while proposing new directions for regenerative design.
Funding & Research Context
This body of work is supported by the SSHRC Innovative Initiative Grant: Earthworks: Architecture’s Regenerative Material Models. Development of the earth–wool mixtures was conducted during an open residency at Cove Park in Argyll and Bute, Scotland.
Shido Soil Museum was designed by HIRAMATSUGUMI, an architecture practice based on Awaji Island, Japan. They are exploring a form of architecture that naturally emerges from the land on which we now stand—architecture in its essential state. The project was developed in collaboration with Kinki Kabezai, a long-established manufacturer of earthen wall materials, as a space dedicated to the exploration, display, and public rethinking of soil as an architectural medium.
Project Information
Location: Awaji, Hyogo, Japan Completion: 2022 Opening: 2023 Area: approx. 181 m² Program: Museum / exhibition space / material experience center
Shido Soil Museum is not conceived as a conventional museum, but as an immersive environment where soil becomes the main subject of space, material expression, and public engagement.
The project reconsiders soil not as a hidden or secondary construction material, but as a visible and experiential medium. Rooted in the idea of “Jimon”—patterns and traces formed by geological movements, topography, and the surface of the earth—the museum translates the imagery of strata, erosion, rupture, and terrain into architectural space.
Rather than presenting soil as a nostalgic or purely vernacular material, the design frames it as a contemporary spatial language. Walls, floors, and surfaces evoke excavated ground, exposed layers, and cracked earth, turning the building into a spatial interpretation of the land itself.
The project makes extensive use of Awaji soil, drawing on the island’s long history of earthen construction and craft. Soil is employed not only as a building finish but as the central medium through which color, texture, thickness, and tactility are expressed.
What is especially significant is that the project does not rely on a single earthen technique. Instead, it presents a broad spectrum of soil-based applications, including rammed earth elements, layered earthen walls, thick plastered surfaces, carved textures, and earthen flooring. Through these varied treatments, soil is revealed as a material of both technical and sensory richness.
One of the most compelling aspects of the museum is its use of localized wall-making techniques to produce distinct spatial atmospheres. Certain walls recall rammed earth construction, where compacted layers create a sense of geological depth and mass. Others are formed through thick earthen plaster and hand-finishing techniques, allowing cutting, scraping, cracking, and layering to remain visible on the surface.
This wall directly adopts the logic of traditional Japanese rammed earth construction. Soil is placed into formwork and compacted layer by layer, producing a dense, stratified mass. A deliberate vertical cut is then introduced into the wall, intensifying the image of a fractured geological layer. This technique emphasizes mass, compression, and stratification, while turning the wall into a spatial representation of tectonic rupture.
One-Cut Rammed Earth Wall
2. Red-Ochre Wall(赭土の壁)
This wall is made by mixing a small amount of iron oxide into Awaji soil. Its surface is then carved and shaped with a trowel to produce textures resembling a cut mountainside or exposed earth section. Here, the focus is less on structural mass and more on color modulation and sectional expression, allowing the wall to evoke the visual depth of geological terrain.
Red-Ochre Wall
3. Dragon-Scale Wall(龍鱗壁)
The Dragon-Scale Wall is formed through repeated plastering and carving, generating a highly articulated surface texture. Rather than presenting soil as a flat finish, this method highlights its capacity for ornament, rhythm, and tactile richness, transforming the wall into a textured field that captures light and shadow.
Dragon-Scale Wall
4. Magnificent Collapse(土崩壮麗)
This technique uses an unusually thick earthen coating to evoke the dramatic face of an excavated cliff or collapsed earth section. Its significance lies in its exaggerated thickness and sculptural presence, pushing earthen finishing beyond conventional wall treatment and toward an effect of erosion, weight, and exposed terrain.
Magnificent Collapse
5. The Bare Skin of the Earth(大地の素肌)
In this treatment, common additives such as reinforcing fibers or stabilizing materials are intentionally reduced. The wall is allowed to dry and crack naturally through the interaction of soil and water alone. Instead of concealing fragility, this method turns shrinkage, cracking, and imperfection into the very expression of the surface. It presents earth in a more raw and vulnerable state, where instability itself becomes an aesthetic quality.
The Bare Skin of the Earth
6. Earthen Steps of Hierarchy(土階八等)
This installation takes its motif from the four-character phrase “Doka Santō”—a reference to the humble palace life of Emperor Bi of Qin, who is said to have governed an era of peace while living simply. Drawing from this idea, the design expresses a presence that is materially modest yet spatially dignified, like a palace in character.
This technique is less about wall-making itself and more about the symbolic use of earthen mass as architectural form. By shaping soil into stepped geometry, it gives earth a sense of monumentality and ceremonial presence, showing how a humble material can still convey gravity, order, and spatial authority.
Earthen Steps of Hierarchy
7. Awaji Armor Wall(淡路鎧壁)
This work adopts the yoroi-kabe technique—traditionally used in earthen boundary walls for cultural heritage sites and vernacular architecture—but reinterprets it here by reversing its usual vertical orientation. Through this inversion, the wall more strongly emphasizes a sense of weight, density, and the raw ruggedness of the earth.
Awaji Armor Wall
8. Fertile Earthen Floor(豊沃の土間)
The dramatically undulating earthen floor represents the earth itself as a swelling, rising ground plane. In doing so, it overturns the conventional assumption that an interior earthen floor should be finished flat according to architectural norms.
Fertile Earthen Floor
9. The Rust of Clay Tiles(窯土の寂び)
This work incorporates Awaji clay roof tiles, one of the island’s local ground-based industries. The tiles on the wall are intentionally left unfired so that, over time, they darken with age, expressing a weathered quality akin to the patina and quiet austerity associated with a tea room.
This technique is especially compelling for its emphasis on time and material aging. By refusing to complete the tiles through firing, the project allows change, darkening, and imperfection to become part of the design. It presents earth not as a fixed finish, but as a medium that continues to transform, carrying associations of patina, memory, and wabi-sabi-like atmosphere.
The Rust of Clay Tiles
Sensory Experience and Related Activities
The museum also hosts a range of hands-on art workshops that invite visitors to touch and work with soil. In the café, several foods are designed to mimic the visual appearance of earth, and some even incorporate edible soil-like material, including diatomaceous earth.
“Touch” – soil texture art workshop“Eat” – diatomaceous earth
Following the spread of Buddhism, Shikkui was first introduced to Japan from the Korean Peninsula in the 6th century. The original purpose was to provide a canvas for religious paintings. When Shikkui was first introduced to Japan, paper fibers were mostly likely used in place of hemp.
Traditionally, the manufacturing of lime was energy intensive and lime was a valuable commodity in pre-industrial Japan. Therefore, it was used very sparingly. The Shikkui lime finish is usually applied a few millimeter thick over an earthen plaster, and in some cases, over a sand-lime plaster. It’s primary function is to protect earthen plastered walls from rain erosion. Depending on exposure, the lifespan of a Shikkui lime plaster is about 20 years. In this sense, it is a kind of sacrificial layer protecting a bamboo lattice and earthen plastered wall that will last over one-hundred years.
Shikkui was developed to allow large, uninterrupted earthen walls to be finished without joints. That is, by improving workability and moisture retention, Shikkui allows for the walls of castles and earthen store houses to be finished without interruption, so there are no joints in the finish lime plaster.
Through a chemical reaction with the carbon dioxide in the air, hydrated lime returns to limestone and provides a recalcitrant, weather resistant and dust free finish.
Seaweed glue is added to improve workability, that is, increase moisture retention and delay setup so that the plaster can be worked longer. (Seaweed glues are also added in earth plasters for the same reason.) Traditionally, dried seaweed was boiled and strained to produce glue, but now a powdered form is commonly available.
Fine hemp fibers reduce cracking and allow for a thin application.
Recipes vary according to the season (temperature and humidity) and craftsperson.
The following is a basic recipe for a Shikkui:
Hydrated Lime 20-23Kg (approx. 44-50lbs)
Powdered Tsunomata Seaweed Glue 500-1000g
Hemp Fibers 400-800g
Nakazaki Residence in Setouchi, Okayama, is an excellent example of exquisite craftsmanship, including fine plastering. Built over a period of 10 plus years during the early 1900’s, Nakazaki residence features traditional Japanese architecture with early western influences.
Nakazaki Residence in Setouchi, Okayama, is an excellent example of exquisite craftsmanship, including fine plastering. Built over a period of 10 plus years during the early 1900’s, Nakazaki residence features traditional Japanese architecture with early western influences.
The defining characteristic of plastering in Kyoto is the use of color clays. The Kansai area of Japan is blessed with a variety of colored clays and these where incorporated into earthen plasters hundreds of years ago.
Meeting Point, a shelter designed by Fuinneamh Workshop Architects in Cork, Ireland, is a quaint pavilion-like building. It was designed to house gatherings to discuss the environment and biodiversity in Tramore Valley Park. The architects desired to create a building that captured and framed the surrounding area, while also operating as a mechanism to draw park visitors into the space to observe and contemplate.
Formally speaking, the design is “deliberately rudimentary.” Its fundamental composition is two end walls and four columns, resting atop a hoggin floor(earth, sand, and stone mix), and covered by a traditional Irish hipped roof structure.
Longitudinal section“The plan of the building references the architecture of a miniature temple. “
The materials for this project were also locally sourced. More specifically, the earth used to make the walls, columns, and floor. In addition, its roof is an open timber frame with a reed thatched finish.
Locally sourced rammed earth.
Being environmentally conscious and site-specific is a typical trait of Fuinneamh Workshop Architects’ buildings; As such, the architects took great care in being deliberate about materials; the hoggin floor references the style of streets of Cork up to the beginning of the last century. Earth, timber, and reed were chosen as the primary materials because of their organic properties, allowing them to be returned to the landscape at the end of the project’s lifetime. Finally, the surrounding subsoil properties were analysed and researched, graded, and tested to ascertain the optimum soil mix for application in construction. This was integral to the success of the project. Without these measures, the structural stability of the project would have been compromised in Southern Ireland’s wet, windy, and unforgiving environment.
Project data
Start on site July 2022 Completion May 2024 Gross internal floor area 40m2 Construction cost £24,725 Construction cost per m2 £620 Architect Fuinneamh Workshop Architects Client LennonTaylor KinShip, Cork City Council, and Creative Ireland Structural engineer Civil and Structural Engineering Advisors Project manager Seán Antóin Ó Muirí Principal designer Seán Antóin Ó Muirí Approved building inspector Kieran Ruane Earth Analysis Department of Engineering, Munster Technological University Main contractor Wiseman Construction Services CAD software used LibreCAD Predicted design Life 50 years
Salara Hotel located in Baja California Sur, Mexico is a hotel that was designed by Taller Héctor Barroso, with the vision to connect living with what emerges from the sand. Consisting of various residences ranging from 14,000 to 20,000sqft, it establishes a shared environment of both community and nature.
Completed residential unit
All the buildings are created with rammed earth. Allowing the natural raw materials that are available on site such as earth, chalk, lime or gravel, allowed a cost effective method to creating these vacation homes. The rammed earth also regulates the interior heat within the residences.
Creating the foundation and establishing electrical.
The main focus of the use of material not only focused on sustainability but allowing guests to interact with light shade and surrounding vegetation as well as highlighting aspect of the geological features.
Proposed space highlights the geography of Baja alluding to the material.
Exterior pathways to each unit
Pathways connect the various 10 spaces allowing those to relax in their lifestyle while accessing each others units in community. The sand covered court allows for local tournaments and spaces to bring one another together.
Location: Diriyah, northwest of Riyadh, Saudi Arabia
Type: Historic earthen settlement / urban heritage site
Historic Core: At-Turaif District in ad-Dir‘iyah
Period: Founded in the 15th century; major political role in the 18th–early 19th century
UNESCO Status: World Heritage Site, inscribed in 2010
Primary Material: Traditional Najdi mudbrick / earth-based construction
Overview
Diriyah is a historic urban landscape shaped by earth construction. Its significance lies in the way architecture, settlement form, climate adaptation, and political history are bound together in one place. UNESCO describes At-Turaif as the first capital of the Saudi Dynasty and a witness to the Najdi architectural style specific to the center of the Arabian Peninsula. This means Diriyah is important not only because it uses earth as a material, but because it demonstrates how earthen architecture can operate at the scale of an entire city: walls, palaces, streets, courtyards, defensive structures, and urban hierarchy are all formed through related material and spatial logics.
Historical and Cultural Context
Diriyah’s importance is inseparable from its role in Saudi history. The official Diriyah site describes At-Turaif as the heart of the Emirate of Diriyah, the First Saudi State, built from traditional Najdi mudbrick and overlooking Wadi Hanifah and the Diriyah oasis. UNESCO likewise identifies it as the first capital of the Saudi Dynasty. These descriptions matter because they show that the architecture of Diriyah is not merely vernacular in the sense of being local and anonymous; it is also political, dynastic, and symbolic. Earth architecture here was used not only for domestic life, but also for governance, defense, and the representation of power. In other words, Diriyah demonstrates that earthen architecture can be monumental and state-forming, not only rural or modest.
Landscape and Settlement Logic
Diriyah is also a settlement shaped by its landscape. UNESCO and other heritage descriptions emphasize its position near Wadi Hanifah, where oasis conditions, topography, and defensive needs influenced how the city developed. This relationship to the valley matters because earthen settlements are often misread as isolated objects, when in fact their form emerges from water access, terrain, and patterns of protection and movement. In Diriyah, the historic district occupies an elevated position overlooking the wadi, which strengthened both its defensibility and its visual authority. The city therefore should be read as an environmental and territorial construction as much as an architectural one.
Material System
The material system of Diriyah is fundamental to understanding its architecture. The official Diriyah site repeatedly describes At-Turaif as built from traditional Najdi mudbrick, while tourism and heritage descriptions emphasize its mud-brick character at the scale of the entire district. Mudbrick construction relies on locally available earth, shaped into units and dried before assembly into thick walls. What matters here is not only that the material is local, but that it forms a coherent construction culture: the material, the wall thickness, the maintenance cycle, and the architectural language all depend on one another. Earthen construction in Diriyah is therefore not a superficial finish or a nostalgic aesthetic; it is the structural and cultural basis of the settlement itself.
Architectural Features
UNESCO identifies At-Turaif as a major example of Najdi architectural style, and this style can be understood through a set of recurring spatial and formal features: thick earth walls, carefully controlled openings, inward-oriented compounds, courtyards, and a dense urban fabric. These features are not isolated details; together they produce an architecture of mass, shade, privacy, and gradated enclosure. The city’s buildings do not rely on glassy openness or long-span structural expression. Instead, their character comes from the sculptural handling of mass and void. This is why Diriyah is so important within earth architecture studies: it shows how an entire urban language can emerge from the properties of earth itself.
Earthen Monumentality and Urban Scale
A deeper reason Diriyah matters is that it challenges a persistent misconception about earthen architecture: that earth belongs only to small, rural, or informal buildings. At-Turaif shows the opposite. UNESCO presents it as a dynastic capital, and the official Diriyah materials present it as a mud-brick citadel central to the making of the Kingdom. This means earth here operates at the scale of monument, palace, district, and capital city. Its essential to mention: Diriyah broadens the imagination of what earthen construction can be. It is not only a technology of shelter; it is also a technology of urban order, representation, and political centrality.
Contemporary Relevance
Diriyah remains highly relevant to contemporary architecture because it continues to function as a reference point for new work. Recent architectural coverage of projects in Diriyah, including Zaha Hadid Architects’ Asaan Museum, explicitly states that the site’s mud-brick architecture and centuries-old urban fabric are the source of inspiration, and that the project will use locally sourced clay mud-bricks. This is significant because it shows that Diriyah is not treated merely as a museum object frozen in the past. Instead, it acts as a living precedent for how local material intelligence, Najdi form, and climatic knowledge can be reinterpreted today. In that sense, Diriyah is both an origin and an ongoing design reference for contemporary earthen practice.
Conclusion
Diriyah is a foundational case in earth architecture because it demonstrates that earthen construction is not simply a matter of material substitution. It is a complete architectural and urban system in which politics, landscape, craft, climate, and form are interdependent. Its buildings are made of earth, but its significance goes beyond materiality alone: Diriyah shows how earth can generate a capital city, a heritage landscape, a climatic urbanism, and a continuing source of architectural knowledge. For that reason, it should be understood not as a relic of a premodern past, but as one of the clearest and most enduring demonstrations of earth architecture’s intelligence and relevance.
