Garage Conversion in Lewisham

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Average Garage conversion cost in Lewisham

The regular cost of Garage conversion are £6000. Costs can change based on the materials and the tradesman hired. The material costs are mainly about £1500

Average price per Garage conversion job in 2026

Avg. price low

Avg. price low
£9,834

Avg. price

Avg. price
£14,834

Avg. price high

Avg. price high
£19,634

£20200

£15150

£10100

£5050

£0

Prices based on actual Garage conversion costs for Lewisham, as reported by local LeadsDoWork members.

Garage conversion installation cost in Lewisham 2026

Labour cost £4,200
Material cost £1,500
Waste removal £300
Time frame: 6-12 weeks

Garage conversion searches in July 2026

Garage conversion Projects in Lewisham in June 2026

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Requests for quotations in Lewisham in June 2026

0

Requests for Garage conversion quotations in Lewisham in June 2026. 0% change from May 2026.

880

Requests for Garage conversion quotations in London County in June 2026. -12% change from May 2026.

Source: Numbers calculated based on the search volumes in major search engines

Garage conversion searches in cities and towns near Lewisham June 2026

Lewisham

The London Borough of Lewisham is a London borough in south-east London, England and forms a part of Inner London. The borough wascreated in 1965, by the London Government Act 1963, as an amalgamation of the former location of the Metropolitan Borough of Lewisham and also the Metropolitan Borough of Deptford, which had been created in 1900 as divisions of the County of London. Nonetheless, minor boundary adjustments have occurred since its creation. One of the most important amendments were made in 1996, when the former part of the Royal Docks in Deptford was transferred from the London Borough of Greenwich.

The local authority is Lewisham London Borough Council and it is based in Catford. The borough covers a total area of approximately 13.57 square miles. It is surrounded by the Royal Borough of Greenwich to the east, the London Borough of Bromley towards the south and the London Borough of Southwark towards the west. The River Thames forms a short section of northern boundary with the Isle of Dogs inside the London Borough of Tower Hamlets. Deptford Creek, Pool River, River Quaggy and River Ravensbourne pass through the borough.

Based on population estimates produced during 2014, Lewisham is a borough with about 291933 permanent residents. Around 43 per cent of households are owner-occupiers. The Prime Meridian passes through Lewisham. Blackheath, Goldsmiths, University of London and Millwall F.C. are positioned inside the borough.

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Garage conversion pros in Lewisham

LW Building Service

2 review(s)
Based: in London, SE20 8AG

Latest review

Angela L., SW16
3

Conversion | Garage in London

LW Building Service contacted me via phone & came to see my proposed project, very informative & thought we would contin...

Marlow Developments & Building LTD

1 review(s)
Based: in Southend-on-sea, SS9 1BT

Latest review

Zeenat A., SS3
4

Conversion | Garage in Southend-on-Sea

good survey etc but job not yet done

Similar Customer Enquiries for Garage conversion in Lewisham

31 Jan

Conversion | Garage

London - SE10

Enquiry from: Alexis P

Start Date: Immediate

new secure door (up and over, should be fine 215x200 mm), 11.5 sqm garage space (2.5 m height) electrics (install lights and sockets) insulation, plaster board, paint flooring (nothing major pvc inte...

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21 Jan

Conversion | Garage

London - SE10

Enquiry from: Alexis P

Start Date: Immediate

new secure door (up and over, should be fine 215x200 mm), 11.5 sqm garage space (2.5 m height) electrics (install lights and sockets) insulation, plaster board, paint flooring (nothing major pvc inte...

Post a similar request >

11 Nov

Conversion | Garage

Bromley - BR1

Enquiry from: Francisco T

Start Date: Immediate

hello, we are looking to convert built in/integrated garage to a bedroom with ensuite. this will require lowering the level of the current concrete floor by 50 cm and replacement of garage door with a...

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03 Mar

Conversion | Garage

London - SE16

Enquiry from: Dominique F

Start Date: Immediate

Converting garage into additional living space. Floor and ceiling and stud walls needed. Electricity and gas already present in garage Are you the property owner: Owner of the property Do you have a:...

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03 Feb

Conversion | Garage

London - SE16

Enquiry from: Dominique F

Start Date: Immediate

Converting garage into additional living space. Floor and ceiling and stud walls needed. Electricity and gas already present in garage Are you the property owner: Owner of the property Do you have a:...

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30 Dec

Conversion | Garage

Bromley - BR1

Enquiry from: Hari A

Start Date: Immediate

Looking to insulate garage so that I can store things there over winter. Now it is getting damp.

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08 Aug

Conversion | Garage

Beckenham - BR3

Enquiry from: Hellen F

Start Date: 1 to 3 months

Home Owner Supplied and Fitted Call to Appoint Are you the property owner: Owner of the property Do you have a: Single Garage What will the space be used for: Studio Do you require Plumbing Work...

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28 Jul

Conversion | Garage

Beckenham - BR3

Enquiry from: Hellen F

Start Date: 1 to 3 months

Home Owner Supplied and Fitted Call to Appoint Are you the property owner: Owner of the property Do you have a: Single Garage What will the space be used for: Studio Do you require Plumbing Work...

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18 Jul

Conversion | Garage

London - SE3

Enquiry from: Binu V

Start Date: Immediate

Are you the property owner: Owner of the property Do you have a: Single Garage What will the space be used for: Studio Do you require Plumbing Work: Yes Do you require Electrical Work: No Would you li...

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22 May

Conversion | Garage

Beckenham - BR3

Enquiry from: Terence W

Start Date: Immediate

Submit your free quote for rated tradespeople

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18 May

Conversion | Garage

Beckenham - BR3

Enquiry from: Terence W

Start Date: Immediate

Homeowner Please contact to appoint

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30 Apr

Conversion | Garage

London - SE3

Enquiry from: Binu V

Start Date: Immediate

Home Owner Garage Conversion Please call to appoint

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29 Sep

Conversion | Garage

London - SE16

Enquiry from: ZamZam A

Start Date: Immediate

Submit your free quote for rated tradespeople

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20 Sep

Conversion | Garage

London - SE16

Enquiry from: ZamZam A

Start Date: Immediate

Submit your free quote for rated tradespeople

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29 Nov

Conversion | Garage

Bromley - BR1

Enquiry from: Debo L

Start Date: Immediate

Intending to convert an attached double garage to a bedsit with shower/toilet room Are you the property owner: Owner of the property Do you have a: Double Garage What will the space be used for: Li...

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31 Oct

Conversion | Garage

London - SE3

Enquiry from: Julie A

Start Date: 1 to 3 months

showerroom and toilet|archway from hall to lobby then separate showeroom and toilet in garage approximately 16ft by 8ft maximum. there is electric in the garage but no plumbing, Are you the property...

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12 Oct

Conversion | Garage

London - SE9

Enquiry from: Sheena A

Start Date: 1 to 3 months

Garage conversion|I'm interested in converting my garage into a living space To include a full bathroom too( WC, sink and shower). It's a single car garage which has electricity and is unattached at t...

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19 Sep

Conversion | Garage

London - SE6

Enquiry from: E

Start Date: Immediate

Detached garage conversion.

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11 Jul

Conversion | Garage

London - SE9

Enquiry from: Aman H

Start Date: Immediate

Side Garage convesion|Hi, Looking to get my garage converted into 2 rooms, a utility room (washer/dryer) and an office please. Would need the garage door bricking up with a window too please.

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20 Jun

Conversion | Garage

Beckenham - BR3

Enquiry from: Tamir I

Start Date: Immediate

Looking to purchase this property. It contains an external garage. We would like quotes on converting the garage, including costs of attachment to the main house. Additional costs for extending the pr...

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FAQs

do i need building regs for a garage conversion?

Are you considering converting your garage into a more usable space in your home? If yes, then you’d probably want to know if you’ll require building regs before converting the garage. The answer to this question is yes. Although you may not require planning approval to convert your garage into a more usable space, but you’d usually need approval under the Building Regulations.

When re-structuring your garage into a habitable space, the following should be taken into consideration: structural alterations, ventilation, moisture proofing, insulation, fireproofing, escape routes as well as the submission of a building building notice or full plan application to the local council in order to inform them about the planned project.

• Walls

You’ll require an approval if you plan to infill the garage door with a window and a new wall. This is because the garage may have been built of a shallow slab which implies that a new foundation would be needed for the new wall construction.

• Floor

Even though there’s a high possibility that the garage floor is strong enough for domestic use since its designed to withstand the weight of vehicles, you may however need to upgrade to make sure it suitable for both thermal insulation and damp proofing. In addition, there may also be the need to to alter the floor level in such a way that it matches that of the remaining parts of the house.

• Ventilation

According to the Building Regulations requirements, there’s a need for adequate ventilation for each individual rooms which includes garage conversions for general health purposes. What’s going to determine the ventilation level that’ll be required is the frequency at which the room is used. Ventilation can be provided through purge or simply opening the window or via trickle ventilation.

how much does a garage conversion cost?

Are you looking to create some more space in your home with your garage being almost dispensable? If yes, then considering a garage conversion project may be the way to go. Unlike many other extension options, garage conversion does not take up an additional space as it only changes the current structure of the garage. As a result, the cost of completing a garage conversion project can be relatively attractive when compared to other space creating alternatives. So exactly how much would a garage conversion project cost? Well, there’s no precise answer for this as several influencing factors come to play. However, in this guide we’ll give you a rough idea of the average costs that you’re likely going to encounter. Some of the factors that can influence your budget dramatically includes the following:

• The size of the conversion. The larger the size of the garage per square feet, the more cost you’ll have to expend.

• The type of your property - listed buildings are usually more expensive.

• Your location in the UK. If you stay in London where there’s a higher demand, you’ll most likely pay more.

• You’re likely to pay more if a specialist knowledge is required.

• The amount of glazing to be installed

• Quality of the materials to be incorporated.

• Quality of the professional to carry out the installation service.

On average, when it comes to garage conversion projects, you’re likely to pay the following depending on the per square metre given:

• A single garage of about 15 square metre will cost within the range of £6,000 to £15,000.

• A double garage of about 30 square metre will cost within the range of £12,000 to £30,000.

how long does a garage conversion take?

Garage conversion is a great way to add extra usable space to your home without having to extend your property. A fun fact is that, in the UK if you have your car parked in the garage, you’re in the minority. According to a research carried out by Admiral Loans, just about 33 percent of home owners in the UK store their cars in the garage. For most people the garage is literally a dumping ground that’s never fully utilized as such. In recent times, the garage is now being used to store a variety of other stuffs asides a car which includes garden furniture, tools and appliances, utilities such as washing machine, fridge and freezer as well as food and groceries. These facts show that more and more people are underutilizing their garage when they may actually be in need of more usable space in their property. So why not put into consideration converting the garage into a new space that would be able to serve more purpose?

If you’ve decided to convert your garage, you’d probably want to know the how long the project will take. There are a wide range of factors that can determine the duration of a garage conversion project. These factors include:

• If the foundation needs reinforcing

• If the floors, walls, or roofs are in a bad condition.

• If the ceiling height needs some raising

• If the insulation required in newer builds.

All aforementioned factors will make the garage conversion project take longer than expected. However, in normal situations garage conversions are relatively quick to complete once you start the building works. A single-car conversion will usually take about 3 to 4 weeks to complete depending on the existing garage’s structure.

what is a garage conversion?

What is your garage being used for? If your answer is anything besides your vehicle, you’re in the majority in the UK. In the country, according to a research by Admiralty Loans, several home and property owners now use their garage as dumping ground for all sorts of stuffs asides a car. Ultimately, this gives rise to garage conversions as the more or less underutilized space can be converted into a living space which can be more beneficial while also adding more value to the property.

A garage conversion is a fast and relatively affordable route to adding more floor space within your home. It’s basically the act of changing your garage into something other than a storage or a place in which you can park your car. This can be anything from a bedroom to a playroom and anything in between. It’s a great way to provide extra space to allow your family to spread out and have more privacy while still within the walls of your home.

A garage conversion project is a huge one which mostly does not require a planning application so far the conversion is internal. However if you’re planning to increase the garage’s size or change the exterior of your home, or convert your garage into a separate room, then you may require a planning permission before getting started. It’s always wise to consult your local authority before carrying out any work to be on the safer side.

A project of garage conversion’s magnitude is better left to a reliable professional who have the experience when it comes to dealing with building regulations and more. This way, you’d also get to save yourself some headaches and some extra cash which may result from possible costly errors.

Garage conversion

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Lewisham Garage conversion installers are rated 4.3 out of 5 based on 14 reviews of 97 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with Garage conversion projects that have been connected with Garage conversion pros to help them. All Garage conversion contractors All Lewisham Garage conversion contractors

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