Roof, electric/plumbing, concreting such as walls, flooring, septic tank, and (depending on contract) windows, doors, and so on. Waffle Box Homes, by the way, are "half price" because a 40-square-meter house comes with an EXTRA 40-square-meter top deck...which you can rent out if you want to make money. The average size of bare structures in the Philippines is 90 square meters (945 square feet). But some people build bigger ones - 180 square meters (1,961 square feet) was reported in 2011. And even smaller ones have been built too; a 70-square-meter structure (741 square feet) was constructed using only recycled materials in 2014. Here is how much these houses cost, in dollars per square meter: $100-$150 ($125-$190), $150-$200 ($175-$250), $200-$300 ($250-$380). The most expensive homes tend to be made from wood instead of concrete, which costs more but is more eco-friendly. Some wealthy Filipinos also hire foreign builders to create huge mansions for them. One such house in Los Angeles has 1,000 square meters (10,760 square feet) of living space! In conclusion, the cost of a bare-structure house in the Philippines depends on how large it is and what kind of material it's built of.