The architecture of Wadi Dawan primarily consists of mudbrick buildings, supplemented by dry stone retaining walls,
cisterns, and
irrigation systems. The traditional mud-built houses are tall and often appear to climb up the wadi's banks, standing close together.
Mudbrick Houses with
ibex horns The mudbrick tower houses in Wadi Dawan are prominent in villages such as
al-Hajarayn,
Budah,
Hadun, Al Girn,
Khoreibah, and . These structures can resemble
medieval fortifications. Older houses sometimes feature projecting upper floors over main doorways, historically used for defensive purposes like pouring liquids onto adversaries.
Parapets on these buildings are often
crenelated and occasionally adorned with
ibex horns. A distinguishing characteristic of homes in Wadi Dawan is a more defined separation between living areas for women and men, often achieved through terraced
setbacks, leading newer houses to sometimes appear as two distinct pavilions or have a U-shaped layout.
Interior Design While the exteriors of many houses in Wadi Dawan have minimal
whitewash, the interiors of more affluent dwellings are often immaculately white. The interior color schemes frequently incorporate black, white, and rusty red. Lofty ceilings are supported by carved pillars and rafters made from 'elb (
jujube or
Ziziphus spina-christi) wood. Interior woodwork is also made from this material. Doors are set within broad, intricately carved frames and are extensively decorated with large, burnished iron nails. A modern feature in Wadi Dawan houses is the inclusion of an
ablution room in every living space, making them self-contained units. Main living rooms often feature a
Moorish arch instead of a door, which can be part of a whitewashed wall or made of stained 'elb wood studded with nails. The mud floors of upper stories are laid over traditional wood slats arranged in
herringbone patterns. Unlike homes in
Tarim, furniture in Wadi Dawan and
Shibam typically consists of cushions and carpets.
Construction Techniques The process of making
mudbricks (madhar) in Wadi Dawan largely follows ancient methods. Mudbrick yards are located on the outskirts of towns for sun-drying bricks. Masons in Wadi Dawan gather suitable mud from around
date palms following floods. Chopped
straw is mixed with the mud to prevent shrinkage and provide reinforcement, and in some areas, like
Khoreibah, dung is also added. The ratio of straw to mud is determined by the experience of the master mason. Mudbricks vary in size depending on their intended floor level, with thicker bricks used for lower stories and thinner ones for higher floors, contributing to a decrease in wall thickness and floor-to-ceiling height as the building rises. Stone foundations, sourced from local mountains, are used as
damp courses and are shaped by
stone-cutters. These foundations are typically filled with soil and stones to create level platforms. Traditionally, before the widespread use of
cement, a hydraulic
mortar called khaltah (a mix of ash and lime putty) was employed for foundations. Mud mortar, made from the same soil as the bricks but with a different type of wild grass for reinforcement, is used to stack mudbricks.
Mud plaster (mahadha) is also applied to walls, typically with finer chopped straw. Construction often proceeds incrementally, with no more than one story built per year, allowing time for drying and settling.
Timber is horizontally and diagonally embedded within mudbrick walls to reinforce corners. Roofs and floors are also constructed from mud, with tightly spaced date palm
joists. Lime plaster is widely used for waterproofing and decoration, particularly on
parapets and roofs, as full exterior lime plastering is considered a display of wealth. The Bugshan family palaces in Khailah, within a branch of Wadi Dawan, are noted for their elaborate oil-based painted decorations on exteriors. Historically, cement use in Wadi Dawan was limited to mortar for stone foundations and occasionally for waterproofing roofs and bathrooms. For example, in
Al-Hajarayn, the first town in the wadi, only the new mosque incorporates some concrete. The impact of newly paved roads on traditional construction is evident, with areas further from paved roads maintaining more traditional building practices. ==Modern history==