if you engage an architect, insist that they do a site survey or site study.
it's the only way to check for sun movement and wind direction in the area. simple info that will make your house cooler and properly ventilated.

avoid orientating the largest wall in the house against sunshine as it will heat up the area inside. avoid arranging bedrooms directly facing the evening sun as it'll make your room hot at night.
and change the direction of your window opening to guide wind into your house, rather than deflecting them away.



can't find the complete 3D design since there's so many interation and revisions to the plan. it's in here, somewhere.
but the cheapest i got quoted for this plan is RM260k.
basic house, basic equipment, good build quality (from contractor past build history).

specs agreed for RM260k:
12 feet wall
metal deck (because roof pitch is only 5 degrees x 40 feet)
insulated roof
folding door, folding window
full plaster ceiling, 10 feet high
normal downlight, cfl bulb
normal ceiling fan with regulator
16" tile, entire house
full height tile in bathroom
normal paint, indoor and outdoor
normal bathroom finishing
no outdoor tile
no glass railing as in pic

IIRC 4 bathroom, 5 bedroom, 1 ht room, wet & dry kitchen, separated guest living room & dining area, family area, 2nd floor family area, 2 decks.
~3000 sqft interior floorspace.
translates to ~RM86-something psft

edit: (refer post below for accurate floorspace)