Loft Conversions in Knightsbridge, SW7
Dormer, hip-to-gable and mansard loft conversions for houses in Knightsbridge: 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 Knightsbridge.
A loft conversion adds a bedroom and bathroom without touching the garden, and in most of Knightsbridge 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
- Knightsbridge, SW7 · SW1X
- Council
- Royal Borough of Kensington and Chelsea and City of Westminster
- Housing
- Red-brick Dutch-gabled terraces of the Cadogan estate, stucco squares around Brompton and Thurloe, mews houses and lateral apartments
- Transport
- Knightsbridge, South Kensington, Sloane Square
- Loft, on site
- 8 to 12 weeks
- Headroom needed
- About 2.2 m at the ridge
- Consent
- Often permitted development for lofts
Knightsbridge: the houses and the planning rules.
Knightsbridge is estate London at its most exacting. The Cadogan estate's red-brick Queen Anne terraces around Hans Place and Pont Street, the stucco squares of Thurloe and Brompton, and the mews behind them are all in conservation areas, much of it listed, and the estates have their own design requirements on top of the borough's.
Refurbishments here are mostly of lateral flats and mews houses, with kitchens, bathrooms and joinery specified to a very high standard and delivered around the constraints of estate consent, porters, lifts and neighbours who expect quiet. We have worked to these rules for many years, starting a mile north in Marylebone.
The Knightsbridge, Hans Town, Brompton and Thurloe Estate conservation areas cover the whole district.
Two councils
The boundary between RBKC and Westminster runs through the district; we check which authority applies at the first visit and prepare the application to its requirements.
Estate consent
The Cadogan and Wellcome estates require their own approval for alterations, with detailed guidance on windows, roofs and mews frontages.
Flats
Almost all the housing is flats, so licences to alter, block working hours and structural sign-off from the freeholder's surveyor form part of every programme.
Approvals for loft conversions in Knightsbridge.
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.
The boundary between RBKC and Westminster runs through the district; we check which authority applies at the first visit and prepare the application to its requirements.
What loft conversions in Knightsbridge 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 Knightsbridge: your questions.
Is a loft conversion in Knightsbridge 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 and the City of Westminster.
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 Knightsbridge do you cover?
All of Knightsbridge and SW7 · SW1X, including Hans Place, Pont Street, Cadogan Square, Thurloe Square, Brompton Road, Egerton Gardens, and the neighbouring districts. We are based in London and our teams work across central, north, north-west, west and south-west London.
Other services in Knightsbridge.
House Refurbishment in Knightsbridge
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Flat Refurbishment in Knightsbridge
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House Extensions in Knightsbridge
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Structural Alterations in Knightsbridge
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Basement Conversions in Knightsbridge
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Kitchen Renovation in Knightsbridge
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Bathroom Renovation in Knightsbridge
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Bespoke Joinery & Fitted Furniture in Knightsbridge
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Architectural & Interior Design in Knightsbridge
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Planning Permission & Building Regulations in Knightsbridge
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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.