Loft Conversion in Lewisham

Obtain Loft Conversion Prices in Lewisham

Home > Loft Conversions Projects > Loft conversion > Lewisham

Average Loft conversion cost in Lewisham

The regular cost of a Loft conversion is £25000. Costs differ based upon the materials and the firm selected. The upper price range can be as high as £28750. The material costs are mainly approximately £6250

Average price per Loft conversion job in 2026

Avg. price low

Avg. price low
£30,750

Avg. price

Avg. price
£49,500

Avg. price high

Avg. price high
£67,750

£68300

£51225

£34150

£17075

£0

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

Loft conversion installation cost in Lewisham 2026

Labour cost £17,500
Material cost £6,250
Waste removal £1,250
Time frame: 6-12 weeks

Loft conversion searches in July 2026

Loft conversion Projects in Lewisham in June 2026

0

Requests for quotations in Lewisham in June 2026

0

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

5,400

Requests for Loft conversion quotations in London County in June 2026. 0% change from May 2026.

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

Loft 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 part of Inner London. The borough wasformed in 1965, by the London Government Act 1963, as an amalgamation of the former area of the Metropolitan Borough of Lewisham and also the Metropolitan Borough of Deptford, which had been established in 1900 as divisions of the County of London. However, minor boundary changes have occurred since its creation. One of the most significant amendments were made in 1996, when the previous part of the Royal Docks in Deptford was transferred from the London Borough of Greenwich.

The principal settlement of the borough is Lewisham. The borough covers a total area of about 13.57 square miles. It's surrounded by the Royal Borough of Greenwich to the east, the London Borough of Bromley towards the south and also the London Borough of Southwark towards the west. The River Thames forms a short section of northern boundary together with the Isle of Dogs in the London Borough of Tower Hamlets. Deptford Creek, Pool River, River Quaggy and River Ravensbourne pass through the borough.

In accordance with population estimates made in the middle of 2014, Lewisham is a borough with roughly 291933 permanent residents. Key landmarks include All Saints Church in Blackheath, the Citibank Tower in Lewisham and Dietrich Bonhoeffer Church. The Prime Meridian passes through Lewisham. Blackheath, Goldsmiths, University of London and Millwall F.C. are situated within the borough.

Looking for Loft conversion in Lewisham?

Get free quotes from local builders

Get free quotes

Loft conversion pros in Lewisham

Dream the Build

19 review(s)
Based: in London, EC1V 2NX

DREAM the Build. Ltd ' Constructing your Vision Making home development exciting, fun and asset building experience , future proofing household & investors Who we are ? Starting fresh in a new country is never easy, but what we did Catal...

Latest review

A., NW7
4

Conversion | Loft in London

Good quote

Unique Lofts LTD

2 review(s)
Based: in South mimms, EN6 3NX

Professional loft conversions at Unique Lofts, we are a specialist loft company with over 15 years of experience in construction. Call us today.

Latest review

Alan P., EN11
5

Conversion | Loft in Hoddesdon

only company that quoted

London Project Management Ltd Ta Modern Attics

1 review(s)
Based: in London, N3 2DN

Modern ATTICS specialise in loft conversions and House Extensions. We cover all areas of London - North, East, West, Central and South London.

Latest review

Helen W., NW4
4

Conversion | Loft in London

Nice guy

Nicholas James Construction

7 review(s)
Based: in Bromley, BR1 3AX

From past fifteen years we have been established as the finest building and construction service provider to clients in Bromley and its surrounding areas.

Latest review

Jagdish K., HA3
5

Conversion | Loft in Harrow

A extremely thorough unhurried meeting carried out. Honest opinions and views provided. Carefully going through plans to...

Kullar Builders LTD

1 review(s)
Based: in Barking, IG11 9TP

Latest review

Benedict B., RM7
5

Conversion | Loft in Romford

CALLED IN AND ADVICED WITH ALL STYEP BY STEP BEFORE CALLING THE BIULDER.

A1 Forever Solutions LTD

1 review(s)
Based: in London, SE25 6EP

Latest review

Peter M., TW7
4

Conversion | Loft in Isleworth

Waiting for the appointment

Similar Customer Enquiries for Loft conversion in Lewisham

24 Feb

Conversion | Loft

London - SE23

Enquiry from: Maria B

Start Date: Less than one month

customer in the london area made an enquiry a couple of projects including loft conversion.call anytime and arrange an appointment to discuss. below is some details about this project: are you the pro...

Post a similar request >

29 Jun

Conversion | Loft

Bromley - BR1

Enquiry from: Hafiza K

Start Date: Immediate

Loft conversion bathroom and bedroom

Post a similar request >

25 Jun

Conversion | Loft

London - SE16

Enquiry from: Marry A

Start Date: Immediate

Hi, Do you have any tender for estimation/take-offs? We will provide you on-time delivery, affordable rates, and quality is the prime attribute of our services. We do estimation for both commercial...

Post a similar request >

13 Mar

Conversion | Loft

London - SE12

Enquiry from: Jessica K

Start Date: Immediate

What type of loft conversion do you need? Dormer style loft conversion When was the property built? 1921 to 1979 How many stories is the current building? 3 Storeys Do you have plans drawn up? No -...

Post a similar request >

04 Nov

Conversion | Loft

London - SE9

Enquiry from: William D

Start Date: Immediate

Customer made enquiry for Loft Conversion quotes online. Confirmed interest via phone at 17:44 Homeowner lives in London area. Please call to arrange appointment

Post a similar request >

08 Sep

Conversion | Loft

London - SE9

Enquiry from: Rob B

Start Date: Immediate

we have an existing simple velux conversion and are looking to add a dormer and bathroom. are you the property owner: owner of the property property type: terrace what are you looking to convert the s...

Post a similar request >

28 Jan

Conversion | Loft

Beckenham - BR3

Enquiry from: Alexander C

Start Date: Immediate

hip to gable loft conversion, master bedroom with large dorma, bathroom and dressing room. are you the property owner: owner of the property property type: semi detached what are you looking to conver...

Post a similar request >

06 Nov

Conversion | Loft

Bromley - BR1

Enquiry from: Juliet P

Start Date: Immediate

Loft conversion with mist system in open plan area for escape route.

Post a similar request >

02 Nov

Conversion | Loft

London - SE9

Enquiry from: Maureen H

Start Date: Immediate

are you the property owner: owner of the property what are you looking to convert the space into: living space are you looking to have stairs: yes do you require any windows: velux do you require plu...

Post a similar request >

10 Jun

Conversion | Loft

London - SE9

Enquiry from: Tom v

Start Date: Immediate

we are in the buying process and want to do some work to make better use of the property. part of it would be to make the loft a liveable space (currently no access). interested to know (1) the cost o...

Post a similar request >

26 Jan

Conversion | Loft

London - SE4

Enquiry from: Christine M

Start Date: Immediate

two bedroom and bathroom loft conversion are you the property owner: owner of the property property type: semi detached what are you looking to convert the space into: living space are you looking to ...

Post a similar request >

06 Nov

Conversion | Loft

London - SE16

Enquiry from: Alberto M

Start Date: Immediate

we need a dormer loft conversion in a 2 floors house. bathroom and bedroom. are you the property owner: owner of the property property type: semi detached what are you looking to convert the space int...

Post a similar request >

30 Oct

Conversion | Loft

London - SE16

Enquiry from: Alberto M

Start Date: Immediate

we would need a loft extension including stairs and services needed (water…) are you the property owner: owner of the property property type: semi detached what are you looking to convert the space ...

Post a similar request >

05 Oct

Conversion | Loft

London - SE13

Enquiry from: Francois F

Start Date: Immediate

hello, i already have an existing loft conversion and want to add a dormer. i would need a quote please, happy to set up a visit. thanks are you the property owner: owner of the property property typ...

Post a similar request >

19 Aug

Conversion | Loft

London - SE12

Enquiry from: Steve S

Start Date: Immediate

hip to gable roof conversion to create double bedroom and bathroom. are you the property owner: owner of the property property type: semi detached what are you looking to convert the space into: bedr...

Post a similar request >

15 May

Conversion | Loft

London - SE13

Enquiry from: Francois F

Start Date: Immediate

hello, i am looking for quotes to expand my existing loft conversion (currently used as 2 bedrooms) to a dormer at the rear. i am currently exploring 2 options: - a small dormer extension to accomodat...

Post a similar request >

27 Apr

Conversion | Loft

London - SE13

Enquiry from: Francois F

Start Date: Immediate

hello, i am looking for quotes to expand my existing loft conversion (currently used as 2 bedrooms) to a dormer at the rear. i am currently exploring 2 options: - a small dormer extension to accomodat...

Post a similar request >

22 Apr

Conversion | Loft

London - SE13

Enquiry from: Francois F

Start Date: Immediate

hello, i am looking for quotes to expand my existing loft conversion (currently used as 2 bedrooms) to a dormer at the rear. i am currently exploring 2 options: - a small dormer extension to accomodat...

Post a similar request >

18 Apr

Conversion | Loft

London - SE9

Enquiry from: Lukasz M

Start Date: Immediate

i am acquiring a property and considering a loft conversion with ensuite to have a large bedroom. are you the property owner: owner of the property property type: semi detached what are you looking t...

Post a similar request >

16 Mar

Conversion | Loft

Beckenham - BR3

Enquiry from: Thomas H

Start Date: Immediate

we have a semi-dethatched victorian house requiring a hip to gable loft conversion and extension/conversion of *** sloped roof to give 2 additional rooms, one with an en-suite. i would also like the r...

Post a similar request >

Local & reliable builders near me

Tell us about your loft conversion project

Answer a few quick questions, so we can match you with local builders who can help.

Find up to 4 builders in Lewisham

Get free, no-obligation local loft conversion quotes from 4 verified builders working in Lewisham.

Hire with confidence

Compare customer reviews, services and prices, and choose the right tradesperson for you.

Our reviews

Average

Would highly recommend

Would highly recommend, they found me a firm which I was happy with a quote they give me and went ahead and had my job done within 2 days of enquiring.

Good easy way to find a selection of…

Good easy way to find a selection of trades you need all in one place.

Love Local Quotes it's a big part of my …

Love Local Quotes it's a big part of my Business I would recommend to anyone

FAQs

How long will a loft conversion take?

It depends on the style and size of the conversion, but in general, a loft conversion will take between 1-2 months. A loft conversion is a substantial building project, and plans will need to be drawn up. This may add to the time it takes to complete your loft conversion.

how long does a loft conversion take?

If you’re about to carry out a loft conversion project, you’d probably be wondering how long it’ll take to complete the task. Well, you’re not alone! This is one of the most common questions when it comes to loft conversion projects, however, providing a set timeframe for completion of such projects is impossible as all loft conversions vary. There are different factors that can determine the duration of your project. These factors include, the materials to be used, the type of the proposed loft conversion, the kind of staircase you’ll like to have installed, the number of windows included, the number of rooms to be added as well as a number of other influencing factors. As a result of these variables, the milestones and timings provided are only to be taken as guidelines. If you’d really like to have a set date, you can get in touch with a professional for help.

Generally, it’ll take up to 8 weeks to complete a loft conversion project.

✓ The first week activities will include putting up scaffolding, receiving the first materials for the build and creating an opening in the roof to gain access to the loft space.

✓ In the second week, the structure of the roof will be ammended and more support added.

✓ Third week, the floor joists will be fitted, building of the loft conversion will start, completion of the external roof works and commencement of plumbing and electric works.

✓ Fourth week, complete the building, construct the loft floor, fit the roof windows, insulation, ventilation and internal stud walls.

✓ Fifth week, apply plaster and plasterboard to the room walls, create a staircase opening and fit the new staircase.

✓ Sixth week, plaster the staircase area, complete plumbing and electrical works, hang the doors, fit skirting, handrails and bannisters and start decoration.

✓ Seventh week, complete the decoration and clean and wipe out all wastes.

✓ Eight week, complete all the remaining tasks.

what is a hip to gable loft conversion?

This is a type of loft conversion that extends your roof on the sloping side. It is a great option to go for especially where a hipped roof effectively makes the usable floor area a lot smaller which can be a tricky affair when it comes to putting in a new staircase. Here, the roof is extended from the current ridge in such a way that it effectively fills the gap between them. As a result, this turns the hip (in a hipped roof) into a gable to create space in your roof for a loft conversion - hence the name “hip to gable.

The new gable can be done in whatever way that suits both your taste as well as your property. You can make the new gable construction in woods and then tiled to match your existing roof while you can also go for other options such as brick block pebbledash or rendering. You are also free to fit in a new window into the loft conversion end so as to allow for natural light into the loft space.

A hip to gable loft conversion is mostly found on both semi detached and end terrace buildings, particularly those constructed in the 1930s. Overall, this type of loft conversion is particularly ideal for homes that features a hipped roof and with a sloping roof at the side of the property. Some detached properties can also possess a hipped roof on the side - and as such, a double hip to gable loft conversion can also be deal as it’ll create more loft space for usage. If your home fits into the bill, then you should be aware that once the project is completed, you’ll have plenty of usable space available to both you and your loved ones.

an every house have a loft conversion?

If you’re having issues with the amount of space in your home and need an extra space without affecting your garden, loft conversion comes to mind. Not only is it a great solution to creating more living space within a home, but it’s also one of the most budget-friendly solutions you can count on to expand your space by thinking upwards rather than sideways. So if you’re thinking about converting your loft, one thing that almost immediately comes to mind is whether or not your house is suitable for loft conversion.

To answer the question of whether every house can have a loft conversion is a very simple one. Generally, not every house is suitable for loft conversion. This is due to the fact that each and every loft space - from the stairways below and floors to the rafters and the roof up above, is unique. Therefore, the best way to really figure out whether or not a house’s loft offers the potential for conversion is to get in touch with a loft specialist.

So what can make a house not suitable for a loft conversion? Let’s take a closer look!

✓ A house will not be suitable for a loft conversion if the height of the ceiling happens to be too low and it’ll not be possible to have it raised.

✓ If you do not own own the freehold to the loft space, you won’t be able to convert the loft. Surprisingly, this happens to be a common issue in London.

✓ You will not be able to convert your loft if you reside in a conservation area or in a listed building. But you can identify a design solution that’ll still comply with the conservation rules and keep planners happy.

Loft conversion

Other Top Projects in Lewisham

Customer Reviews

Overall rating:


Lewisham Loft conversion installers are rated 4.2 out of 5 based on 14 reviews of 118 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with Loft conversion projects that have been connected with Loft conversion pros to help them. All Loft conversion contractors All Lewisham Loft conversion contractors

Are you a builder in Lewisham?

We can help you get more loft conversion work with our qualified job leads and boost your business.

Join today