Converting a garage price

Author
Discussion

sattyb

Original Poster:

109 posts

113 months

Thursday 16th January 2020
quotequote all
Hi,
I'm looking to convert my garage into a habitable room. The garage is approx 5.5m x 2.5m so sort of standard size.
I also want to raise and replace the roof of the garage so as to get decent height in the new room.
I've been quoted £9k and £10k which includes raising and replacing the roof and all electrical, insulation, plastering, new window and radiator and sockets.
Does this seem reasonable?
I'm in SE of England and West of London if that helps.

Thanks in advance.

Equus

16,852 posts

101 months

Thursday 16th January 2020
quotequote all
Yes, that's more than reasonable, if it includes roof replacement.

Last one I did came to £23K, but that was with a shower room/toilet its own boiler (but existing roof).

TheTrueBOND

24 posts

58 months

Friday 17th January 2020
quotequote all
That sounds like a good (cheapish) price.

I had mine done last year and we needed planning permission due to some sort of "restrictive covenant" on the estate!

Bloody pain in the arse!

We used http://www.garageconversionplans.co.uk/ for the plans and planning permission app - they were excellent.

We used a local builder for bricking up the window at the front (escape window) and I helped the builder with the lining
of the walls in insulation. We had a solid floor with insulation and screed and made it the same level as the house.

My cost breakdown for 6M long by 2.7m wide garage conversion:

Plans for Planning / bregs and on site b/regs checks £1k
Builder cost and materials £6k
Electrics and plumbing £1.2k

Total £8.2K

Thats with me splitting the work and getting in my own elece and plumber.
I had a warm flat roof replaced over the garage and the garage was attached to my house BTW.

It's gave us about 1/3 more livable space downstairs and we've used it as a private lounge for me and the Mrs - no kids allowed in it.


Edited by TheTrueBOND on Friday 17th January 12:21

NumBMW

789 posts

129 months

Friday 17th January 2020
quotequote all
That’s ridiculously cheap.
The cost of all the materials must be nearing £8k !!
My single garage conversion will be nearing £20k with fully insulated stud walls, floor and ceiling, wood patio door, shower room, and new drain to the tank.


Edited by NumBMW on Friday 17th January 21:05

Earthdweller

13,518 posts

126 months

Friday 17th January 2020
quotequote all
Is that not sacrilegious on PistonHeads ?

Shouldn’t you be converting your lounge into additional garage space

laugh

smile

Aluminati

2,498 posts

58 months

Friday 17th January 2020
quotequote all
Slab or foundations ?

What are they doing to mitigate the change in roof ? Can the ( single skin?) walls take it ?

2 sMoKiN bArReLs

30,252 posts

235 months

Friday 17th January 2020
quotequote all
Earthdweller said:
Is that not sacrilegious on PistonHeads ?

Shouldn’t you be converting your lounge into additional garage space

laugh

smile
Exactly my thought hehe

I was going to extend my garage into the kitchen. (Swap a place I never used for a place I loved biggrin)

TheTrueBOND

24 posts

58 months

Sunday 19th January 2020
quotequote all
Aluminati said:
Slab or foundations ?

What are they doing to mitigate the change in roof ? Can the ( single skin?) walls take it ?
Yes, My garage was a single skin wall with piers. We had to build a stud frame 50mm away from the inner wall and insulate
between the studs.

The roof was already a flat roof. We stripped the covering off and then installed a warm roof over the top, Its appox 150mm
higher than it was.

TheTrueBOND

24 posts

58 months

Sunday 19th January 2020
quotequote all
NumBMW said:
That’s ridiculously cheap.
The cost of all the materials must be nearing £8k !!
My single garage conversion will be nearing £20k with fully insulated stud walls, floor and ceiling, wood patio door, shower room, and new drain to the tank.


Edited by NumBMW on Friday 17th January 21:05
Single skin brick wall was lined with a 100mm stud wall and insulation, set back 50mm from the wall (To stop damp penetration).

The roof was already in place e.g. a flat roof with flat roof joists. We simply stripped the covering off that roof and installed a warm roof over the top.

Price wise id say I did 40% of the work along with the builder. So that cut my costs down considerably. If you were getting builders in and giving them
a set of plans, then you would pay considerably more.



hotchy

4,468 posts

126 months

Sunday 19th January 2020
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anonymous said:
[redacted]
I just assumed that was standard. I had 2 requirements and she could choose the rest.

A garage.

Room in the kitchen for a plumbed in ice machine fridge.

Now I get a cold satisfying sippy drink while looking at the car hoping iv done a good job while pretending I knew what I was doing while tinkering about the car for hours.

Simes205

4,536 posts

228 months

Sunday 19th January 2020
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Can I reiterate
Hang on a minute, this is PH.
Garage into a room what on earth are you thinking of!!!

irocfan

40,389 posts

190 months

Sunday 19th January 2020
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anonymous said:
[redacted]
Whilst the above would be us (or at least room to build a garage) I can understand why people convert, though not if it meant parking on the road

rigga

8,728 posts

201 months

Sunday 19th January 2020
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Pet hate when driving around, is noticing garages when open are full of crap, turning it into another room is off the scale .......