Fishponds Road, Tooting SW17
L-shaped dormer over the rear outrigger of an Edwardian mid-terrace, adding a master bedroom and en-suite.
- L-Shaped Dormer
- 11 weeks
- £72k
- Wandsworth Council
- Delivered by us
Loft Conversions in Tooting SW17
The London Loft Conversion Company designs and builds loft conversions across Tooting Bec, Tooting Broadway and Furzedown, covering SW17 and the bordering SW12, SW16 and SW19 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
- £54k–£66k, 8–12 weeks
- Area
- Tooting SW17 (SW12, SW16, SW19)
- Local council
- Wandsworth
- Best for
- Edwardian terraces with outriggers
Why Tooting is such strong territory for a loft conversion
Tooting's housing stock is dominated by Edwardian terraces, built out rapidly between 1900 and 1914 as the trams and the Underground reached SW17. The streets around Tooting Bec and Tooting Broadway are lined with solid red-brick terraces carrying rear outriggers, which is exactly the footprint an L-shaped dormer wraps around. Most SW17 houses can gain a master bedroom and a full bathroom without touching the front of the street.
Planning sits with Wandsworth Council across the whole of SW17, which keeps things simpler than in areas split between two authorities. Most rear dormers and L-shaped dormers proceed under permitted development with a Lawful Development Certificate, usually decided in around 6 weeks. The exception is the Totterdown Fields conservation area, the London County Council's first cottage estate, where roof alterations are heavily restricted and a low-impact Velux conversion is often the only realistic route. We confirm your street's exact position before you commit to anything.
We're around 25 minutes by road from our Fulham base, so Tooting surveys are easy to arrange, usually same day or next working day. Tooting also has one of the strongest value cases of any area we build in: costs run slightly below Clapham and Balham, while the step from a three-bed to a four-bed terrace in SW17 remains one of the biggest price jumps in the local market.
Recent loft conversions in Tooting
A selection of dormer, L-shaped, mansard and Velux projects delivered across SW17, from Tooting Bec down to the Broadway, labelled clearly so you can see whether the build was through The London Loft Conversion Company or our parent company, Pillarstone Operations Group.
Ritherdon Road, Tooting Bec SW17
Rear mansard on a red-brick Victorian terrace within the Heaver Estate conservation area, creating a bedroom suite with full-height walls.
- Mansard
- 14 weeks
- £88k
- Wandsworth Council
- Delivered by us
Mantilla Road, Tooting Bec SW17
Rear dormer with double bedroom and walk-in shower on an Edwardian terrace a short walk from Tooting Bec Common.
- Dormer
- 9 weeks
- £57k
- Wandsworth Council
- Group-delivered
Seely Road, Tooting SW17
Rear dormer creating two bedrooms with a reconfigured landing on a terrace off Mitcham Road.
- Dormer
- 10 weeks
- £61k
- Wandsworth Council
- Group-delivered
Brudenell Road, Tooting Bec SW17
L-shaped rear dormer with bespoke staircase, adding a bedroom and study to an Edwardian family house.
- L-Shaped Dormer
- 12 weeks
- £76k
- Wandsworth Council
- Group-delivered
Lessingham Avenue, Tooting SW17
Velux conversion on the edge of the Totterdown Fields estate, keeping the roof line intact while adding a light-filled double bedroom.
- Velux
- 7 weeks
- £44k
- Wandsworth Council
- Delivered by us
Our projects in and around Tooting
Which loft conversion suits a Tooting home?
Most SW17 houses share the same Edwardian terrace DNA, so the choice usually comes down to your roof, your street and your budget. Here's the short version.
L-Shaped DormerWhy it suits Tooting
Tooting's Edwardian terraces almost all carry a rear outrigger, and an L-shaped dormer wraps the new roof around it, adding a master bedroom and a generous bathroom in one build. Usually permitted development in SW17 outside the conservation areas, and the type we build most often in Tooting.
£63,000 – £78,000
Read more about l-shaped dormersRear DormerWhy it suits Tooting
The most cost-effective full conversion for the terraces between Tooting Bec and the Broadway. A straight rear dormer typically adds a double bedroom and en-suite under permitted development, with a finished cost usually between £54k and £66k.
£54,000 – £66,000
Read more about rear dormersVeluxWhy it suits Tooting
The low-impact option, and often the only realistic route on the Totterdown Fields estate, where roof alterations are heavily restricted. No change to the roof line beyond flush rooflights, the quickest build in SW17, and the gentlest on budget.
£38,000 – £48,000
Read more about veluxsPlanning permission in Tooting: what you actually need to know
When you'll usually need planning permission in Tooting
- Mansards, in every case
- Front-facing dormers, in almost every case
- Any conversion of a flat or maisonette
- Houses on the Totterdown Fields estate, where roof alterations are heavily restricted
- Streets within the Heaver Estate Conservation Area towards the Balham border
- Properties where previous extensions have used up the permitted development allowance
- Anything that raises the ridge line or significantly alters chimney stacks
Conservation areas affecting Tooting
- Totterdown Fields Conservation Area — The London County Council's first cottage estate, built in the early 1900s south of Tooting Broadway. Roof alterations are heavily restricted and dormers are routinely refused; a Velux conversion is usually the realistic route.
- Heaver Estate Conservation Area — Red-brick Victorian and Edwardian terraces between Tooting Bec Common and Balham, around Ritherdon Road and Elmbourne Road. Rear dormers are assessed street by street; mansards are often the recommended route.
Local councils
Typical planning timeline
- Full application (Wandsworth 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 Wandsworth Council, we do.
What does a loft conversion in Tooting cost?
Tooting sits just below Clapham and Balham on cost. The housing stock is consistent Edwardian terracing our teams know street by street, and outside Totterdown Fields and the Heaver Estate there are fewer conservation constraints to design around. The ranges below are 2026 figures for terraces in SW17. Final quotes are confirmed in writing after a free home survey.
| Type | Typical range | Build time | Planning |
|---|---|---|---|
| Velux | £38,000 – £48,000 | 6–8 weeks | Usually permitted development |
| Dormer | £54,000 – £66,000 | 8–10 weeks | Usually permitted development |
| L-Shaped Dormer | £63,000 – £78,000 | 10–12 weeks | Often permitted development |
| Hip-to-Gable | Less common in SW17 | – | – |
| Mansard | £72,000 – £95,000 | 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 Tooting quoteWhat our Tooting 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 Tooting homeowners
How much does a loft conversion in Tooting cost?
Loft conversions in Tooting typically cost £54,000 to £95,000 depending on the type and the property. A standard rear dormer on an Edwardian terrace usually falls between £54,000 and £66,000. L-shaped dormers, the most common choice given how many SW17 terraces have a rear outrigger, run £63,000 to £78,000. Mansards are £72,000 to £95,000, and a Velux conversion starts from around £38,000. Every figure is VAT included and confirmed in writing after a free home survey.
Do I need planning permission for a loft conversion in Tooting?
Often not. Rear dormers and L-shaped dormers on Tooting houses usually fall under permitted development, needing only a Lawful Development Certificate from Wandsworth Council. You will need planning permission for a mansard, for any conversion of a flat or maisonette, and for most roof alterations on the Totterdown Fields estate or within the Heaver Estate Conservation Area. We check your street's exact position at the free survey and handle whichever route applies.
Can I convert a loft on the Totterdown Fields estate?
Usually only with a low-impact design. Totterdown Fields was the London County Council's first cottage estate, and the conservation area rules heavily restrict roof alterations, so dormers are routinely refused. A Velux conversion, which keeps the roof line intact, is normally the realistic route, and head height varies house to house across the estate. We assess feasibility honestly at the free survey; if your loft will not work, we tell you straight.
How long does Wandsworth Council take to approve a loft conversion?
A full planning application typically takes 8 to 10 weeks. A Lawful Development Certificate, which is all most Tooting 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.
What's the most common loft conversion type in Tooting?
The L-shaped dormer. Tooting's Edwardian terraces were almost all built with a rear outrigger, which is exactly the footprint an L-shaped dormer wraps around, adding a master bedroom and a full bathroom in one project. Straight rear dormers are the next most common, particularly on the roads between Tooting Bec and Tooting Broadway.
Will a loft conversion add value to my Tooting house?
In most cases, comfortably. The step from a three-bed to a four-bed terrace is one of the bigger price jumps in the SW17 market, and Tooting build costs sit slightly below neighbouring Clapham and Balham, so the margin between build cost and added value tends to be healthy. Local agents can give you street-level sale figures; we give you the fixed build cost in writing so you can do the sums before committing.
We also work in nearby areas
Don't see Tooting as your nearest postcode? We work across London. Most of our work comes from referrals between neighbouring streets.
- Loft Conversions in Balham
- Loft Conversions in Streatham
- Loft Conversions in Wimbledon
- Loft Conversions in Clapham
- Loft Conversions in Wandsworth
- Loft Conversions in Battersea
Looking for a specific postcode? See all the South London areas we cover or West London areas.
Ready to start your Tooting 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 SW17, 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 Tooting
- 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.