Architecture / June 11, 2018 /
In general it can be said that larger buildings with simple, rectangular, regular floor plans and elevations will be less expensive per sq.m. of floor area than smaller, complex shaped, curved or angular buildings. Economies of scale apportion fixed overheads to a larger extent of productive space. Simple setting out and buildable solutions encourage greater plant use and generate higher productivity and less waste. Complex layouts and details are slower to assemble and may involve a number of trades with a consequent greater risk of mistakes and defects. The degree of compartmentation and repetition will also affect the overall cost of the work. New building work is considerably cheaper than work of a repairing nature or work in existing buildings. Single storey structures tend to be more costly than buildings up to three storeys high, beyond which point they become progressively more expensive.
The worst part about lowering the quality as you increase the size is that it eventually lowers the re-sale price. Take a look online in the neighborhood or area of town you are interested in and look for only homes that all cost the same amount of money, say a million dollars. When I do this exercise, I almost always find some larger homes that are not all that attractive and some smaller homes that are well-designed and beautiful. Bigger does not translate into better resale value. The price per square foot of a home with a focus on quality is higher than a larger home that sacrificed quality for size. And this only becomes more evident as the home ages.