Foundation Costs?

dj01

Will be starting a new build soon, and getting costs in from trades as going direct labour.
It's a dormer, and the footprint of the house is 1,900 sq ft. It will be a strip foundation.
Got a quote of €26k for materials and labour (excluding any excavation which will be done separately). Can anyone who has built a house recently by direct labour give me an idea as to how that compares?

Thanks,
dj01

ircoha

Sounds v high to me.

One way of checking yourself is calculate the volume of concrete required for the founds and then call Readymix etc for a price for this amount delivered to where-ever u live.
for example http://www.bancrete.com/sh1087y.html

are doing 32N concrete at 85 euro + 13.5% vat delivered per metre cubed.

say ur house is 15m by 10m so that is 30 plus 20 for the outside walls and say another 40 for internal walls
so [30+20+40] = 90 linear metres of foundations

at say 1m wide thats 90 sq meters and say 0.6 m deep is 54 cubic meters at 85 plus vat is around 5200 euro.

Pouring the founds, depending on access is not a big job assuming the lorry can get close

Hope the math is right but u see the idea.

I see from further down that foundations seem to include some blockwork and all the sub floors, dpc etc.
My thoughts were just on the strip foundations.
Sin sceil eile.

smashey

That figure is ridiculously high.

mukki

dj01 wrote:

Will be starting a new build soon, and getting costs in from trades as going direct labour.
It's a dormer, and the footprint of the house is 1,900 sq ft. It will be a strip foundation.
Got a quote of €26k for materials and labour (excluding any excavation which will be done separately). Can anyone who has built a house recently by direct labour give me an idea as to how that compares?

Thanks,
dj01

i paid about 20k for a 2100 footprint foundations
5000 for foundations guy
2700 for block laying guy
6800 for concrete, sand, crushed stone, blocks and filling
rest on insulation, radon, cement, hardware stuff

Jrad

€25000 dosnt sound too bad, substructure is half the cost of any construction project. Plus you want to spend money on it cause if it aint right you cant really go much further.

The cost will include concrete, rebar, formwork, labour and vat i would imagine so i does all add up.

dj01

Thanks for the info folks. Mukki did your foundations turn out ok? I'd be apprehensive about getting several guys to do the work separately - as if something went wrong then nobody is soley responsible.

ircoha

dj01 wrote:

Thanks for the info folks. Mukki did your foundations turn out ok? I'd be apprehensive about getting several guys to do the work separately - as if something went wrong then nobody is soley responsible.

Such are the joys of direct labour. You will also get issues once u get to roof level and what will the roofer do versus what will the chippy do

whitelightrider

Folks,

Which is a better type of raft, a strip raft or a regular raft?

sas

whitelightrider wrote:

Folks,

Which is a better type of raft, a strip raft or a regular raft?

And for the benefits of the rest of us, whats a "strip raft"?

Mellor

sas wrote:

And for the benefits of the rest of us, whats a "strip raft"?

Was he probably meant to say strip foundation versus a raft foundation.
And it would depend on the situation

ircoha

Mellor wrote:

Was possibably meant to say strip foundation versus a raft foundation.
And it would depend on the situation

As suggested by Mellor: Ground conditions will determine what is the better one: have a peep at these.

http://www.skoool.ie/skoool/examcentre_sc.asp?id=1710
http://www.archiseek.com/content/showthread.php?t=4829
http://www.viking-house.net/insulated-raft-foundations
http://www.buildstore.co.uk/materials/foundations.html

Steve McQueen used neither in Papillion

mukki

ircoha wrote:

As suggested by Mellor: Ground conditions will determine what is the better one: have a peep at these.

http://www.skoool.ie/skoool/examcentre_sc.asp?id=1710
http://www.archiseek.com/content/showthread.php?t=4829
http://www.viking-house.net/insulated-raft-foundations
http://www.buildstore.co.uk/materials/foundations.html

Steve McQueen used neither in Papillion

brother was telling me about a couple who sold their house and bought a site with planning, it cost them 160k for the site, and the had very littel input on how the house will be layed out, anyway, they started building and due to the slope on the site the groundsworks and filling will cost them over 80k

lfcjfc

Had strip foundations put in for 3200sq ft dormer (inc garage) earlier this year.

Price included demolition of existing derelict cottage, prep of site (good site, flat with no rock), strip foundations, finish up to subfloor. Total cost was €18.5k - €8.5k labour and about €10k materials.

Hope this helps

whitelightrider

Just got a quote last night for raft for 2300sq ft house and separate Garage - 15k. Materials approx 10k and labour 5k.

smashey

whitelightrider wrote:

Just got a quote last night for raft for 2300sq ft house and separate Garage - 15k. Materials approx 10k and labour 5k.

That doesn't sound too bad for a raft.

kay.79

Can anyone help me in rough cost of foundation for 1800 sq ft or 160m2 bungalow and garage , either raft or passive.

Superdaddy

kay.79 wrote: »

Can anyone help me in rough cost of foundation for 1800 sq ft or 160m2 bungalow and garage , either raft or passive.

Just finished adding up all the costs for mine recently. I did the viking passive raft. 138sqm for €14600, underfloor heating not included. Got a local builder to install it and my engineer designed and supervised the job.