Browse Forums Building A New House Re: Site Costs Question 2Sep 08, 2007 8:02 pm donuts The standard inclusions list from our builder includes these: CONNECTIONS Sewer, stormwater, water & electricity up to 750 m2 block. CONCRETE SLAB up to “H” class. TEMPORARY FENCING where required. Does that mean our site costs will be covered (our block is approx 600m2)? No. The site still needs to be prepared before the slab can be laid. The site may need some cutting and filling of the soil to make it level. If the site requires a lot of cutting then you'll have to pay for soil removal. The soil tests may reveal you need something more than a 'H' class slab. They make hit rock whilst preparing for the slab which will incur additional costs to remove. You'll have a standard allowance for concrete piering, but you may require more. Do any trees need to be removed? This costs extra. You may require retaining wall(s). Re: Site Costs Question 3Sep 08, 2007 8:22 pm Thanks for your quick reply Cookiemonster. Looks like I have a bit more learning to do
The block 'looks' pretty level. I wonder, if there is already a house sitting on it with its own concrete slab and foundations, how safe it is to assume any rock would have been cut out before THAT house was built 40-50 years ago? (Don't worry I won't be basing my budget on any assumptions like this, just wondering how likely...) We've had an independent soil test done which said H class is fine, I realise there'll need to be another one done after demolition though. Only a few small trees and shrubs around the perimeter, so they should be able to stay shouldn't they? Also, what is concrete piering? thanks again donuts Re: Site Costs Question 4Sep 08, 2007 11:20 pm hi donuts,
when we demolished the old house on our block we found that they had built pretty much on landfill. there was 50 years of rubbish underneath the house, which of course we then needed to dump (urrgh). I think it goes to show you never can tell what is underneath a house. I also think that engineers / designers are becoming more and more conservative and careful in their footings designs as the years go on. I can only presume that this is through fear that cracks in people's houses will come back to haunt them, so it is better to be safe than sorry in their designs. cheers Helen Re: Site Costs Question 5Sep 09, 2007 10:05 pm Connections covered (power run in, reticulated water, sewer and stormwater etc...).
But site works will involve site fall (if applicable) and slab upgrade costs. As you have a H site, expect to pay around $9m2 (slab area), additional if your foundations require piers etc... A straight H (without piers) in most cases can be cheaper than a M-D on piers. Interesting to see how you go. Re: Site Costs Question 6Sep 10, 2007 10:31 am Depending on your engineering report, you might not need concrete piers. If you look at Helen's blog (http://tandtheoz.blogspot.com/), you will see that they used a different approach.
But there definitely need to be some sort of support under the slab of the house... In case you need any, have a look at my blog, I got 69 of them..... http://building-our-first-house.blogspo ... -done.html I am not sure whether Perth has its own way of doing things in regards to this. Most of Perth has class A (sandy soil), except for some areas near rivers or hills. 2 12983 Is anyone building with Mojo and have a recent site cost tender 0 15906 Henley should give you some indication of site costs. Too many variable to give you any reasonable accuracy 1 1831 |