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Cost for garage extension/build on garage



 
 
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  #1  
Old June 24th 07, 10:55 PM posted to uk.d-i-y
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Posts: 9
Default Cost for garage extension/build on garage

Hi,

I am looking at houses, but not all already have one built!

SWMBO isnt happy with any we have seen so far, so it looks like work is
needed on whatever we buy.

Does anyone have a rough ballpark figure what cost am I looking at to

a) Build a single story brick built garage adjoining the property.

b) Build on top of a existing garage to create a first floor bedroom with
flat or apex roof.

I have guesses at about 25k for either option? Any I off the mark??





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  #2  
Old June 24th 07, 11:36 PM posted to uk.d-i-y
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Posts: 2,490
Default Cost for garage extension/build on garage

In an earlier contribution to this discussion,
Clive wrote:

Hi,

I am looking at houses, but not all already have one built!

SWMBO isnt happy with any we have seen so far, so it looks like work
is needed on whatever we buy.

Does anyone have a rough ballpark figure what cost am I looking at to

a) Build a single story brick built garage adjoining the property.

b) Build on top of a existing garage to create a first floor bedroom
with flat or apex roof.

I have guesses at about 25k for either option? Any I off the mark??


You should be able to build a detached garage for a lot less than that. What
size are you talking about.

I had a double (17'6" square internally) detached garage built last year
with insulated cavity walls - with concrete blocks rather than insulation
blocks inside, and with a pitched roof for about 22 grand - including a wide
well insulated motorised sectional door, a back door and large window.

The cost of building over an existing garage will depend on what's there
already. If it's got cavity walls, and if the foundations are suitable for
taking the extra weight, it should again be under 25k. Otherwise, it could
start to get complicated - and expensive!
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  #3  
Old June 25th 07, 12:05 AM posted to uk.d-i-y
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Posts: 9
Default Cost for garage extension/build on garage

You should be able to build a detached garage for a lot less than that.
What size are you talking about.


At least my ballpark estimate is on the cautious side!

I am only looking at a regular single garage, with insulated cavity walls as
it is connecting to the house (i.e only needs 3 walls), regular garage door
on the front, and a single upvc door in the rear.

I had a double (17'6" square internally) detached garage built last year
with insulated cavity walls - with concrete blocks rather than insulation
blocks inside, and with a pitched roof for about 22 grand - including a
wide well insulated motorised sectional door, a back door and large
window.

The cost of building over an existing garage will depend on what's there
already. If it's got cavity walls, and if the foundations are suitable for
taking the extra weight, it should again be under 25k. Otherwise, it could
start to get complicated - and expensive!


Been looking at a property with an existing single story garage, which was
built with the intention of building over but this has not been done. Hence
it has cavity walls/suitable foundations. Tempting!



  #4  
Old June 25th 07, 02:13 AM posted to uk.d-i-y
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Posts: 4
Default Cost for garage extension/build on garage


"Clive" wrote in message
k...
Hi,

I am looking at houses, but not all already have one built!

SWMBO isnt happy with any we have seen so far, so it looks like work is
needed on whatever we buy.

Does anyone have a rough ballpark figure what cost am I looking at to

a) Build a single story brick built garage adjoining the property.

Well under 10K for that. My neighbour had his garage converted to a room
and a shower room fitted on the back of it, a sloping roof with tiles. That
cost 10k. A garage would be less. The doors & windows will only cost a
few hundred.

b) Build on top of a existing garage to create a first floor bedroom with
flat or apex roof.

Maybe a bit more than the garage!

I have guesses at about 25k for either option? Any I off the mark??


You're probably right if that includes full decoration too, maybe between
20k and 22k.

Good luck. How about a loft conversion and a conservatory instead?


 




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