• The site is located in the tropics close to the equator.
• The local climate is generally hot and humid (see Figure 1).
• The plot dimensions are approximately 150’ x 150’x 160’x 100’. The plot is located on the side of a hill. There is about a 30’ drop from one side to the other (see Figure 2).
• The plot is being walled with a vehicular opening at the southeast corner (see Figures 3, 4 and 5).
• The site is completely off the grid – all services will be generated or provided on site.
a. 3 bedrooms
i. Master bedroom: 240-260 SF
ii. 2nd bedroom: 160-180 SF
iii. 3rd bedroom: 160-180 SF
b. 2.5 bathrooms
i. One full master bathroom (with bathtub)
ii. One full bathroom (with shower stall)
iii. One half bathroom (toilet and sink only). Door to the half bathroom should not be from the living/dining room or kitchen.
c. Living/dining room with direct access to verandah: 400-460 SF
d. Kitchen and pantry: 200-220 SF
e. Laundry room/alcove: 40-50SF
f. Utility room: 40-60 SF
g. All room to have 10’ floor to ceiling heights
h. Total enclosed area of house not to exceed 1,600 SF
i. Outdoor verandah off living room: 200-250 SF
j. Single carport (attached, covered, or under the house)
• The building should be positioned in an east-west orientation, with primary windows on north and south, with few if any windows east and west to minimize heat gain (see Figure 4).
• The roof should have large eaves (min. 5’) to limit direct sunlight into interior space and exterior walls and to allow windows to remain open during heavy rains.
• Air-conditioning is not an option, so the house will need to be designed to maximize natural ventilation.
• Prevailing winds are general from the northwest (see Figure 4).
• Rectangular building configuration (rather than square), to allow maximum cross-ventilation through living/dining area and bedrooms.
• Living/dining room and all bedrooms must have large windows on at least two sides to allow for cross-ventilation.
• Building should be raised on stilts to allow under-floor air circulation.
• Passive cooling systems, such as a solar chimney, could be considered.
• Electricity will be generated on site by a combination of roof-mounted solar panels and a diesel generator.
• Water will be collected on site from roof runoff to gutters, downspouts, and into a 2,500-gallon cistern or water tank below the ground floor. Collected water will be pumped to a secondary 300-gallon tank above the ceiling level of the highest floor of the building. Both tank locations to be integrated into the design. Collected water will be used for irrigation and toilets and – after filtration and treatment – for bathing and washing.
• Sewage will be treated using an on-site septic system (septic tank and leaching field).
• The primary views into the valley are to the north and northwest. Therefore, primary living spaces (living/dining room, master bedroom, and exterior verandah) should face north/northwest.
• The building should be located in the south half of the plot closer to the access road (See Figure 4). Sufficient space should be maintained on the southwest side of the plot for shade trees to be planted. New trees will be planted throughout the lot; the one existing tree in the middle of the lot may or may not be kept.
• Sufficient space should be provided between the house and the south access road for a visitor parking area that can accommodate two vehicles.
• Access from the visitor parking area into the building and throughout the ground floor should be wheelchair accessible. Little or no re-grading of the site should be required.
• The building can be a single story or two-story. If two-story, 2nd floor should contain only the master bedroom and master bathroom.
• Given the steep slope of the site, the carport could be located below the ground floor.
• The walls of the house will most likely be constructed using 6” concrete masonry units (CMUs). However, it is possible that 4’-wide pre-fabricated panels may be used.
• The roof should be pitched; the roofing material will be a light-colored metal sheeting material (aluminum, zinc-aluminum) or cement tile.
• Windows will be jalousie type (louvers) and/or casement type.
Site Plan: Scale ¼” = 1'
Floor Plans for each level: Scale ¼” = 1’
Elevations for each side of the building: Scale ¼” = 1'
At least 2 cross-sections through the building: Scale ¼” = 1’
At least 2 perspective and/or exterior isometric views
AutoCAD .DWG files for all plans, elevations, cross-sections, and isometric views