Hi everybody
This is my first post. I’m going to demolish my approx. 100 year old bungalow & build a detached house (13.5 x 8.8M footprint) + detached double garage. I have PP.
I’m in Surrey, & my plot has a very high water table. Due to the water table problem, if I don’t get everything in place now, so that the foundations can be dug in September, it would make sense to wait until next September, so really, I need to make some quick decisions.
I’ve received this quote (below) & I’m keen to know whether it seems reasonable. I will make sure setting out is included, if I accept this quote. The ply that’s mentioned is for the shuttering that we’ll need to use to stop the foundations caving in (due to the water that will seep in within a few hours of the trenches being dug). I bought a job lot of reclaimed plywood boards for this purpose some time ago.
I’ve attached a drawing to show the substructure plan. This was drawn by an SE about 4 years ago, before the project was put on hold. I realise the regs have changed, so I’ll be getting a new drawing showing a 150mm or perhaps 200mm cavity, but this gives you an idea of what’s involved. There’s around 60 linear metres of trench here. BCO have told me I’ll need 1M trenches, 60cm wide, with 60cm concrete.
The site plan shows the new house & garage. I’ve drawn the drains in, in red & the circles indicate the access chambers that are included in the quote.
& here’ the quote. It’s a shame they didn’t break it down, with a price for each line. The existing garage is a large single, made from very flimsy wood, so that will not take too much effort to demolish, although it has a corrugated concrete asbestos roof, so care will need to be taken with this. I reckon the demolition is £5K max. It’s an almost level site now, as the garage area was dug out some time ago, so there’s already about 3 loads of muck away to go (£1,000?) & the quote covers this too.
Please see below comprehensive list of works to be completed and quotation for this work.
Demolition of existing bungalow and garage
Dig out and remove existing foundations
Removal of hardcore and waste material from site
Dig foundations (an allowance of 1m depth by 600mm wide trenches)
Form shuttering (ply supplied by customer)
Concrete foundations (depth to be advised by building control)
Lay in ducting for gas, water, electric and NTL to receive services by others
Lay all foul and rainwater drainage including manholes
Build up block and brick footings to receive block and beam flooring
Allowance for three courses of bricks in Staffordshire blues
Lay block and beam floor
Allowance of 1.5m of hard standing around new property plus a hard stand area to the front of the cabin for storage of materials
No allowance
Clay master
Sheets of plywood (to be supplied by customer)
Base for new garage - awaiting designs/spec
Total: £59,584.00 (Net)
I’m sure this would have cost a lot less if the project hadn’t been put on hold four years ago. Do you think this seem reasonable at today’s rates?
cropped GFP with foundations.pdf