FAQ's

How much does a garage conversion cost UK?

Compared to building a brand-new extension, the less costly garage conversion is the obvious alternative. Prices vary but normally a three by four metre extension would cost you upwards of £17,000 whereas a garage conversion would typically cost from around £6,500.

Do you need planning permission to turn a garage into an office?

Not normally. If you are converting your garage into extra living space, providing the work is internal and does not make the building any larger. A condition attached to a planning permission may also require the garage to be maintained, in which case you would need to apply for permission.

Can I convert my garage into an office?

Planning permission is not usually required to a garage conversion providing the work is just internal and does not entail making the actual building any larger.

Are garage conversions worth it?

Generally, it's a sound investment as it could add up to 20% to your home's value and you'll also get the extra living space you need without the usual planning headaches.

Can I put a toilet in my garage?

Yes, you can add a toilet and shower to your garage conversion. Whether you're doing this as part of a wider home improvement scheme or just want to make the space more functional it's an option that's well worth considering.

Can I turn my garage into a granny annexe?

Yes, you can, and it's a lot quicker to get planning permission than with an extension, as this can take from 3-6 months by the time you've had quotations, had plans designed and submitted and granted.

Can you convert a detached garage into a bedroom?

This is usually no problem and planning permission is not required as a garage conversion usually falls under permitted development, yet you should be aware that if you are converting it into a home office or habitable space you will need building regulations approval.

Do you need architect drawings for garage conversion?

No, it isn't necessary to involve an architect to create plans for you, this can be done quite easily by a local surveyor.

What is the best way to insulate a garage?

An effective way for thin walls and garage doors is to use Rigid Foam Insulation. If the garage conversion is to be converted into living space or an office or workspace, it's a good idea to also insulate the ceiling and floor.

Still have questions?

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G M.
20:01 26 Mar 26
Had an external garage conversion by this company. Rick and the team were all polite and friendly. They kept in contact throughout the work with updates. All the work was completed to a high level at a reasonable price. Thank you once again. I’m really pleased with the conversion 👍🏻
Joanne P.
22:57 11 Mar 26
Such a great company. Turned up on time, very polite and professional. Best of all, they did a fantastic job - they went above and beyond, even sourced a matching door for the storage room at the back of the garage and boxed in the fuse box. They spent half a day finishing off and cleaning up after the job and left everywhere clean & tidy. Would 100% recommend.
Ron
20:17 19 Feb 26
We had a double garage converted into living accommodation by the Northwest team. The standard of work was outstanding and we are absolutely delighted with the result. From start to finish we were kept informed and involved in all decisions and the tradesmen were true professionals. If you are considering using this team don’t think twice you won’t regret it.
Martyn L.
16:09 04 Feb 26
Could not be happier with our double garage conversion by Rick and the team. All the lads so friendly and hard working, couldn’t have asked for anyone better to do the job.
Fast, efficient and super clean and tidy throughout and after the job. Found Rick by chance and we’re so happy we did. I wasn’t local to Rick either but they still travelled everyday to complete the work. Very good fair pricing. If you’re thinking of getting your garage converted don’t hesitate and get in touch with Rick or the team.
markbrabin
19:08 02 Feb 26
We used Garage Conversions North West to convert half of our double garage, and we’re absolutely delighted with the result. They created a fantastic new space that includes a bedroom, bathroom, and utility room, all finished to a very high standard. The whole team were friendly, professional, and respectful throughout the project, keeping everything clean and tidy and treating our property with care. Communication was great from start to finish, and the work was completed efficiently. We would highly recommend Garage Conversions North West to anyone considering a garage conversion.Easy five star!
Ian H.
08:14 06 Dec 25
I highly recommend Garage Conversions NW. We had a double garage converted into an office and single garage and were very impressed with the speed and quality of the transformation for a very competitive price. Communication from Rick and Troy was excellent and all trades were really nice and did a great job. Many thanks
Crispybeck
17:56 23 Oct 25
Troy and the team have been exceptional for a second time. We were conscious of getting the correct brick match for an integrated garage and they got it spot on! Furthermore, their internal finishes were fantastic and helped out with extra requests of installing laminate flooring without any issues!
Nicola C.
13:11 15 Oct 25
Had a single garage converted into a utility/ toilet/ home office.
Excellent service from start to finish and competitive pricing.
Troy, Rick, Phil, Clint and Charlie are a great team and have done a fantastic job on my garage conversion. They knew exactly what I wanted and delivered to a very high standard with minimal disruption (I work from home) and everything was kept clean and tidy. The work was completed within the expected timeframe even with the extra jobs I added like our custom built utility unit which is perfect for our small space. They went above and beyond to make sure we were happy with everything. The extra space has made a massive difference to our growing family. I highly recommend them to anyone who needs a garage conversion.
Kerry S.
12:56 13 Sep 25
Brilliant job from start to finish. Rick and the team were friendly and helpful throughout.
They made sure that we were happy with the job and no issues.

We converted our garage creating a door way into the garage from the house. Sectioning into 3 rooms- office/spare room, utility, and downstairs toilet/showerroom. With a loft hatched and boarded area for storage

Everything was built and fitted. Including laying the flooring, fitting the utility cupboards and the bathroom (we supplied). The only things not included was the tiling and painting.

As a female I was comfortable with all the workmen in the house and were all kind and considerate.

Everything was left clean and tidy everyday.

We are so happy with the space that has been created and the price charged. Thank you so much!