Loft Conversions in Chelsea, SW3
Dormer, hip-to-gable and mansard loft conversions for houses in Chelsea: a bedroom and bathroom under the roof, designed and built by one team.
Covered under one contract
- Structural design and calculations
- Planning or lawful development certificate
- New staircase, dormer and roof windows
- Insulation, fire safety and building control
- En-suite designed and fitted
- Waterproofing with guarantee for basements
Loft Conversions in Chelsea.
A loft conversion adds a bedroom and bathroom without touching the garden, and in most of Chelsea it is the most cost-effective way to gain a floor. Which type suits your house depends on the roof: Victorian and Edwardian terraces usually take a rear dormer, 1930s semis with hipped roofs need a hip-to-gable conversion to make the space usable, and in conservation areas a mansard or rooflight scheme may be the only option.
We start by measuring the roof. About 2.2 metres from the top of the joists to the ridge is needed for a comfortable room; we check this at the first visit before anything is drawn. From there our architects design the layout and the stair, our engineers design the new floor and any steelwork, and our team builds it with the house occupied throughout.
Most lofts are permitted development within the 40 or 50 cubic metre allowance, with the dormer at the rear. Flats, listed buildings and streets with Article 4 directions need a planning application, and every loft needs building regulations approval for the structure, fire escape and insulation. We manage all of it.
- Area
- Chelsea, SW3 · SW10
- Council
- Royal Borough of Kensington and Chelsea
- Housing
- Victorian terraces and stucco houses, artists' studios, mews, mansion flats and new-build developments
- Transport
- Sloane Square, South Kensington
- Loft, on site
- 8 to 12 weeks
- Headroom needed
- About 2.2 m at the ridge
- Consent
- Often permitted development for lofts
Chelsea: the houses and the planning rules.
Chelsea runs from the red-brick and stucco terraces off the King's Road to the riverside streets around Cheyne Walk. The housing is mostly Victorian, much of it listed, in a dense patchwork of conservation areas policed by the Royal Borough, which is known for strict basement and roof policies.
Our work in Chelsea includes a development of six apartments where we designed, supplied and fitted matching kitchens and wardrobes to the developer's programme. Whether it is one house or a whole building, the same rules apply: careful drawings, early approvals and a build that respects the neighbours.
The Chelsea, Royal Hospital, Cheyne and Chelsea Park/Carlyle conservation areas cover most of the district.
Royal Borough of Kensington and Chelsea
RBKC decides applications. Its basement policy limits basements to a single storey under part of the garden, and it takes a firm line on roof extensions and rear elevations.
Conservation areas
Almost all of Chelsea is within a conservation area. Article 4 directions remove permitted development rights on many streets, so extensions generally need a full application.
Developments and flats
In new and converted buildings, works are coordinated with the freeholder or developer and delivered to a fixed programme.
Approvals for loft conversions in Chelsea.
Most loft conversions are permitted development within the 40 cubic metre allowance for a terrace or 50 for other houses, with the dormer at the rear. Conservation areas, flats and front dormers need a planning application, and every loft needs building regulations approval.
RBKC decides applications. Its basement policy limits basements to a single storey under part of the garden, and it takes a firm line on roof extensions and rear elevations.
What loft conversions in Chelsea includes.
- Structural design and calculations
- Planning or lawful development certificate
- New staircase, dormer and roof windows
- Insulation, fire safety and building control
- En-suite designed and fitted
- Waterproofing with guarantee for basements
From site visit to handover.
- 01
Site visit & consultation
We visit, listen and measure. Brief, budget and constraints understood before any advice is given.
- 02
Design & itemised quote
Our architects and engineers draw the scheme, and from that we provide a transparent, itemised quotation for your approval.
- 03
Planning & approvals
Planning applications, building control and party wall matters handled for you.
- 04
Build, managed weekly
Our own trades, sequenced by a site manager. Progress reported every week.
- 05
Handover & aftercare
Joint snagging walk-through, documentation, and a guarantee on our workmanship.
Loft Conversions in Chelsea: your questions.
Is a loft conversion in Chelsea permitted development?
Often, provided the added volume is within 40 cubic metres for a terrace or 50 for other houses and the dormer is at the rear. Flats, listed buildings and streets with Article 4 directions need an application to the Royal Borough of Kensington and Chelsea.
How much headroom do I need for a loft conversion?
About 2.2 metres from the top of the ceiling joists to the ridge. Victorian and Edwardian roofs usually have it; 1930s hipped roofs often need a hip-to-gable conversion to make the space usable. We measure at the first visit.
Which parts of Chelsea do you cover?
All of Chelsea and SW3 · SW10, including King's Road, Cheyne Walk, Sloane Street, Old Church Street, Chelsea Manor Street, Flood Street, and the neighbouring districts. We are based in London and our teams work across central, north, north-west, west and south-west London.
Our work near Chelsea.
Other services in Chelsea.
House Refurbishment in Chelsea
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Flat Refurbishment in Chelsea
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House Extensions in Chelsea
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Structural Alterations in Chelsea
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Basement Conversions in Chelsea
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Kitchen Renovation in Chelsea
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Bathroom Renovation in Chelsea
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Bespoke Joinery & Fitted Furniture in Chelsea
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Architectural & Interior Design in Chelsea
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Planning Permission & Building Regulations in Chelsea
Read moreLoft Conversions across London.
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We will visit, listen and explain what is possible for your property and how it would be approved. No pressure, no sales pitch.