Hi Philip 108
Still in the process of building our renovated house, so here are my pointers for you to consider. We got quotes from 4 'experienced' builders, but found that they only quoted for the areas which they actually knew and then put in any (huge) figure for the areas they did not know. They expected to sub-contract out that part of the construction and still ensure a healthy profit. Result was very highly priced quotations from all, but in all different areas.
We decided to use a builder who we knew well. He bought the key building materials and provided the labour, while we bought the materials which related to quality or colour (such as tiles, bathroom fittings, lighting, etc.). This way we felt we could keep an eye on price.
We go to the project daily, sometimes twice, to check progress and do our own quality checking. We found that while we explained in detail what we wanted to the contractor, somehow it did not get back to the men on site, so we have started to also tell the men why we what things a certain way. That has helped a lot. Speaking Indonesian is very important to do this.
We have use mainly Depo Bangunan (Malboro) and Mitra 10 (Bypass) to buy materials. Although there are cheeper places, we have found that having a fixed price (no haggling) has worked out better for us. Generally, we found the Bule (western) prices to be quoted at least 10% more than local prices. Also, our builder has told us to visit a place, photograph what we wanted, get a quote, and he then sends one of his guys round a day or so later to get a price for the same thing. Usually 10-25% cheeper for his guys.
We have also found that certain concepts, like waterproof membranes, cavity walls, using terminal blocks for electric wire connections, are unknown or untried. Do not expect Austrailan or European standards to be applied. Maybe the contractor knows, but his guys are unlikely to!
But, if you explain why you want something, you may find there is a local method or product that will do the same thing.
Also, prepared to be surprised at the differences in price. For example, a 3 ton truck full of large stone was only 50,000 Rp more expensive than a small Pick-up truck full of stone. Still cannot work out why.
Oh, and if you are pleased with the men's work, then packets of cigerettes are really welcomed. If you give money, somehow all that goes to the Kontractor or his gang foreman, and your generous donation does not do the trick.
Regarding the design, make sure that you allow for plently of storage space, and really think about how you are really going to use the space, including lighting, where the TV goes, where the phone goes, where the internet will be.... cause we have had to change positions of plugs and cable runs, and that has proved messy and expensive. Also, if you see something you like, get it right away, and in the numbers that you want. Frequently we have found a 'large stock' has vanished almost overnight, and the suppliers (always in 'Jakarta') no longer make it, or have ceased to exist.
Have fun. Prepare to write a book about the experence, or better still, come and meet up over a bintang and chat about the horror stories and sleepless nights with others who have gone through the same experiences!
Barekarma