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Posted: Tue Nov 30, 2010 10:05 pm
by A.V.A.G.O
Hello to you all, I hope this is in the correct place, I'm not a builder but where I can I to do as much as I can, ( i'm only a Spark ),
Anyway to my question/s. My house was built in 1990 on what used to be a commercial alotment ( tomatoes) the house has been built on a slab, and having had my orders from the trouble&strife to build a garden room, I would like to know if you can have strip footings for the extension or will it need to be a Slab as the rest of the house ?
the extension will be 3m x 4m single storey with a tiled roof ( manmade imitation slate. I believe I only need building regs
Amy help is appreciated
AVAGO 
Posted: Tue Nov 30, 2010 10:33 pm
by lutonlagerlout
here is a good start
planning portal
lot of food for thought there dude
LLL
Posted: Tue Nov 30, 2010 11:53 pm
by GB_Groundworks
Likely it was built on a raft foundations as it was unsatiable ground because of the commercial gardening. Best to check with a structural engineer as the depth required for strips might be cheaper with what you save in excavation and concrete to go the engineer and raft footing route.
We did a raft on fill for 4 x2bed flats raft was only 150mm thick
Posted: Wed Dec 01, 2010 4:43 pm
by A.V.A.G.O
thanks for the replies, do you rekon the LBC will have the original plans, the Builder that put the house up sold out to persimmon, Couple of email might save me some cash,
AVAGO
Remeber: Red to Brown and Black to Blue it Up ( spark Humour ) 
Posted: Wed Dec 01, 2010 6:21 pm
by Tony McC
My eyes! My eyes! Mamma I'm blind!!!
Posted: Wed Dec 01, 2010 6:56 pm
by msh paving
dunno what he said,maybe he can type it again in black MSH
Posted: Wed Dec 01, 2010 7:34 pm
by Dave_L
Crikey!
Posted: Wed Dec 01, 2010 7:53 pm
by A.V.A.G.O
oooo errrrr sorry about that,
thanks for the replies, do you rekon the LBC will have the original plans, the Builder that put the house up sold out to persimmon, Couple of email might save me some cash,
AVAGO
Remeber: Red to Brown and Black to Blue it Up ( spark Humour )
Posted: Wed Dec 01, 2010 10:30 pm
by lutonlagerlout
chances are your extension will need to be on a slab as well
what happened in 1990 has no bearing on what they want today
we were building cavity walls at 250mm then ,they are 300mm now
you need an architect to rustle up a drawing for you
LLL
Posted: Mon Sep 19, 2011 9:33 pm
by A.V.A.G.O
well finaly got the plans back, and approval building regs on one bit and planning on the other ( two lots of building work )
Strip foundation, with RW pipe passing through the foundation then about 1500mm below that a sewer pipe from the house next door, The pipe/s are plastic. the RW is not a problem as there is an IC 1500mm away, smack bang in the middle of the boundry fence, it only serves my house so I will move it so it does not pass through the foundation, Now the Sewer
If I dig down to the pipe 300m either side and about 300mm below, do I shutter it off back fill round the pipe with pea gravel, then what about the top ? is it just a wooden top and concreate lintel/s over the top of that ?
Posted: Thu Sep 22, 2011 8:41 pm
by A.V.A.G.O
Could someone give me an idea for the cost for some ground works
There is 2 lots:
1) 4M x 3M x 4M off the back of my house
2)4M x 2.7M
600mm wide and 2M deep lintal across the sewer, I think the total amount of concreate is 10 cube. the will be access for a mini/micro-digger, the digging is or seems not too bad.
I'm on on the notts/lincs/leic border
The Depth is at pressent only guessing as I believe I need to go as low as the IC coller so it could be less
Posted: Thu Sep 22, 2011 9:08 pm
by lutonlagerlout
ballpark £2.5k for 1 not sure what 2 means?
LLL
sorry out of our area
Posted: Fri Sep 23, 2011 5:29 pm
by A.V.A.G.O
thanks for the reply, the second part was for an l shaped footing 4 x 2.7 on the side of house. I was thinking about 2.5k,
just had one quote for £5860, bit steep, maybe for that i get a gardner as well
I think i might hand dig the footings
Posted: Fri Sep 23, 2011 6:33 pm
by lutonlagerlout
£5860!
is that including brickwork and oversite up to dpc level?
if so its in the realms
LLL
Posted: Sat Oct 15, 2011 11:14 am
by A.V.A.G.O
Hello again, had the BC today, everything is good then came the "BUT".
And the but is a why, is your house on a raft ? I phoned to local PO to find out, without success, so now I have to go from trench to a raft.
The trench is 1200 deep, if I back fill with road stone an compact it, then take the centre down to expose the main slab, how much lower do I need to go than the main slab , 150mm or more?
Thanks for reading