Amity Grove, Raynes Park SW20
Hip-to-gable with rear dormer on a 1930s semi, adding a master bedroom, en-suite and full-width eaves storage.
- Hip-to-Gable
- 10 weeks
- £67k
- Merton Council
- Delivered by us
Loft Conversions in Wimbledon SW19
The London Loft Conversion Company designs and builds loft conversions across Wimbledon and the surrounding SW19 and SW20 postcodes, around 25 minutes from our Fulham base. One in-house team for feasibility, design, planning, structural engineering and the build itself. One fixed price, VAT included, written contract.
- Typical project
- £55k–£72k, 8–12 weeks
- Area
- Wimbledon SW19 (SW20)
- Local council
- Merton
- Best for
- 1930s semis and Victorian terraces
Why Wimbledon is one of the best parts of London for a loft conversion
Wimbledon has two housing stocks, and both convert brilliantly. Around South Wimbledon and the Broadway you find Victorian and Edwardian terraces with rear roof slopes made for dormers. Head out towards Wimbledon Chase and Raynes Park and the streets switch to classic 1930s semis with hipped roofs, which is prime territory for a hip-to-gable conversion, usually paired with a rear dormer for maximum floor area.
Planning sits with Merton Council across SW19 and SW20. A full application typically takes 8 to 10 weeks; Lawful Development Certificates, which is all most Wimbledon hip-to-gable and dormer projects need, are usually decided in around 6 weeks. The picture tightens around Wimbledon Village and the Hill, where conservation area rules restrict roofline changes, so designs there tend towards a mansard or a low-impact Velux conversion.
We're around 25 minutes by road from our Fulham base, which means same-day or next-working-day survey visits across Wimbledon, Raynes Park and Wimbledon Chase. Once one hip-to-gable goes up on a street of 1930s semis, the neighbours can see exactly what their own roof could become, and a good share of our SW20 enquiries start that way.
Recent loft conversions in Wimbledon
A selection of hip-to-gable, dormer and mansard projects we've delivered in SW19, SW20 and the immediately surrounding postcodes, labelled clearly so you can see whether the build was through The London Loft Conversion Company or our parent company, Pillarstone Operations Group.
Quicks Road, South Wimbledon SW19
Rear dormer on a Victorian mid-terrace creating a double bedroom and shower room a short walk from the Broadway.
- Dormer
- 9 weeks
- £59k
- Merton Council
- Delivered by us
Palmerston Road, South Wimbledon SW19
L-shaped dormer built over the rear outrigger of an Edwardian terrace, adding a master suite and separate study.
- L-Shaped Dormer
- 11 weeks
- £73k
- Merton Council
- Group-delivered
Lingfield Road, Wimbledon Village SW19
Rear mansard within the Wimbledon Village conservation area, creating a guest bedroom and bathroom under full planning permission.
- Mansard
- 14 weeks
- £91k
- Merton Council
- Delivered by us
Dupont Road, Raynes Park SW20
Hip-to-gable and rear dormer combination on a 1930s semi near Wimbledon Chase, with the staircase repositioned over the existing flight.
- Hip-to-Gable
- 10 weeks
- £64k
- Merton Council
- Group-delivered
Dora Road, Wimbledon Park SW19
Rear dormer bedroom with built-in wardrobes and a Juliet balcony overlooking the garden.
- Dormer
- 8 weeks
- £57k
- Merton Council
- Group-delivered
Our projects in and around Wimbledon
Which loft conversion suits a Wimbledon home?
Wimbledon's housing splits fairly cleanly by roof type, and the right conversion depends on which side of that split your house sits. Here's the short version.
Hip-to-GableWhy it suits Wimbledon
The 1930s semis around Raynes Park, Wimbledon Chase and Grand Drive have hipped roofs that slope on three sides and waste most of the loft's headroom. Rebuilding the hip into a full gable, usually paired with a rear dormer, turns that dead space into a master bedroom and en-suite. Usually permitted development, and the most common conversion we build in SW20.
£58,000 – £72,000
Read more about hip-to-gablesRear DormerWhy it suits Wimbledon
The most cost-effective route for the Victorian and Edwardian terraces around South Wimbledon, the Broadway and Haydons Road. Usually permitted development, with a finished cost typically £55k to £68k for a double bedroom and en-suite.
£55,000 – £68,000
Read more about rear dormersMansardWhy it suits Wimbledon
The right call where the Wimbledon Village conservation area restricts dormers. A mansard rebuilds the rear roof at a steep angle and creates a full new storey with vertical walls inside, in keeping with the period stock around the Village and the Ridgway.
£75,000 – £98,000
Read more about mansardsPlanning permission in Wimbledon: what you actually need to know
When you'll usually need planning permission in Wimbledon
- Mansards, in almost every case
- Front-facing dormers or anything visible from the street around the Village
- Any conversion of a flat or maisonette
- Properties within the Wimbledon Village or other Merton conservation areas
- Listed buildings, most of them clustered around the Village and the Ridgway
- Homes where previous extensions have used up the permitted development allowance
- Anything that raises the main ridge line, including some hip-to-gable designs on prominent corner plots
Conservation areas affecting Wimbledon
- Wimbledon Village Conservation Area — Covers the Village high street, the Ridgway and the surrounding residential streets. Roofline alterations are tightly controlled; mansards and Velux conversions are usually the workable routes.
- Wimbledon Hill and Village fringes — The larger period houses climbing the Hill towards the Village attract closer scrutiny. Designs here usually go to full planning rather than permitted development.
- Merton Park and John Innes conservation areas — South of the town centre towards Merton Park. Distinctive Arts and Crafts stock with specific controls on dormers and roof materials.
Local councils
Merton Council
Covers Wimbledon, Raynes Park and the wider SW19 and SW20 area
Planning portal: merton.gov.uk/planning-and-buildings
Typical planning timeline
- Full application (Merton Council)
- 8–10 weeks
- Lawful Development Certificates
- ~6 weeks
We handle every part of this: Lawful Development Certificates, full planning applications, Design and Access Statements, conservation area heritage statements, council liaison and responding to planning officer queries, all within your fixed quote. You don't deal with the council, we do.
What does a loft conversion in Wimbledon cost?
Wimbledon pricing benefits from its housing stock. Hip-to-gable conversions on 1930s semis are structurally predictable, which keeps costs a little below inner-London period terrace work, while the Village commands mansard-level budgets. The ranges below are 2026 figures for houses in SW19 and SW20. Final quotes are confirmed in writing after a free home survey.
| Type | Typical range | Build time | Planning |
|---|---|---|---|
| Velux | £40,000 – £50,000 | 6–8 weeks | Usually permitted development |
| Dormer | £55,000 – £68,000 | 8–10 weeks | Usually permitted development |
| Hip-to-Gable | £58,000 – £72,000 | 8–10 weeks | Usually permitted development |
| L-Shaped Dormer | £64,000 – £80,000 | 10–12 weeks | Often permitted development |
| Mansard | £75,000 – £98,000 | 12–16 weeks | Planning permission required |
VAT included. Final price varies with structural complexity, spec and finish. Your proposal is itemised line by line before any commitment.
Book a free survey for your Wimbledon quoteWhat our Wimbledon clients say
We were nervous about committing to such a big project, but the team made it the smoothest experience. They stayed on budget, finished a week early and even sorted the snags before we'd noticed them. Our bedroom is the best room in the house now.
Sarah & Tom
L-shaped dormer · Clapham
From the first survey to handover, everything happened when they said it would. The fixed price genuinely was fixed, and the weekly photo updates meant we always knew exactly where the build was. The dormer has completely changed how we use the house.
James R.
Rear dormer · Wandsworth
Our loft was a dumping ground for ten years and now it's the nicest room we own. The crew were tidy, polite and honest about what was possible, and the finish is better than we dared hope for.
Rebecca H.
Mansard · Fulham
Loft conversion questions from Wimbledon homeowners
How much does a loft conversion in Wimbledon cost?
Loft conversions in Wimbledon typically cost £55,000 to £98,000 depending on the type and the property. A rear dormer on a Victorian terrace in South Wimbledon usually falls between £55,000 and £68,000. A hip-to-gable on a 1930s semi, the most common project in SW20, runs £58,000 to £72,000. L-shaped dormers are £64,000 to £80,000, and mansards, mostly seen around the Village, are £75,000 to £98,000. A Velux conversion starts at around £40,000. Every figure is VAT included and confirmed in writing after a free home survey.
Do I need planning permission for a loft conversion in Wimbledon?
Often not. Hip-to-gable conversions and rear dormers on Wimbledon houses usually fall under permitted development, needing only a Lawful Development Certificate. You will need planning permission for a mansard, for any conversion of a flat or maisonette, and for most work within the Wimbledon Village conservation area. We assess your street's exact position at the free survey and handle whichever route applies.
How long does Merton Council take to approve a loft conversion?
A full planning application typically takes 8 to 10 weeks with Merton Council. A Lawful Development Certificate, which is all most Wimbledon hip-to-gable and dormer conversions need, is usually decided in around 6 weeks. We prepare and submit everything, deal with any planning officer queries, and build the approval time into your project programme.
Why are hip-to-gable conversions so common in Wimbledon?
Because of the 1930s semis. The streets around Raynes Park, Wimbledon Chase and Grand Drive are lined with semi-detached houses whose hipped roofs slope on three sides, leaving very little usable headroom inside the loft. Rebuilding the sloping hip into a full vertical gable, then adding a rear dormer, transforms that space into a proper master bedroom and en-suite. It's structurally straightforward on this stock and usually permitted development.
Can I convert a loft in the Wimbledon Village conservation area?
Usually, yes, but the type changes. Rear dormers are typically restricted in the Wimbledon Village conservation area, so a mansard, which rebuilds the rear roof at a steep angle in keeping with the period stock, or a low-impact Velux conversion is normally the recommended route. We prepare the heritage statement and full planning application as part of the fixed quote.
Do you cover Raynes Park, Wimbledon Chase and South Wimbledon?
Yes, all of them. SW20 is core territory for us because of its hip-to-gable stock, and we work throughout SW19 from South Wimbledon up to Wimbledon Park. We build across the whole of London from our Fulham base, so nearby areas like Colliers Wood, Morden and Motspur Park are covered too. Wherever you are, the survey, the fixed price and the in-house team are the same.
We also work in nearby areas
Don't see Wimbledon as your nearest postcode? We work across London. Most of our work comes from referrals between neighbouring streets.
- Loft Conversions in Putney
- Loft Conversions in Tooting
- Loft Conversions in Balham
- Loft Conversions in Streatham
- Loft Conversions in Wandsworth
- Loft Conversions in Richmond
Looking for a specific postcode? See all the South London areas we cover or West London areas.
Ready to start your Wimbledon loft conversion?
Tell us your postcode and a bit about your house. Daniel will arrange a free home survey, usually within 5 working days in SW19 and SW20, and you'll have a fully itemised fixed-price proposal within 7 days of the visit. No pressure, no obligation, no hard sell.
- Free home survey, usually within 5 working days in Wimbledon
- Itemised fixed-price proposal within 7 days of the survey
- 15% deposit only after you sign · 5% retention held until snagging is signed off
- VAT included in every figure
Prefer to talk? Call Daniel on 07414 648 263.