Basement Conversions in Earl's Court, SW5
Cellar and basement conversions in Earl's Court: dry, habitable rooms below ground with designed waterproofing, natural light and building control approval.
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
Basement Conversions in Earl's Court.
Where a house cannot grow outwards or upwards, it can grow downwards. Many of the older houses in Earl's Court already have a cellar or vaults, and converting them into a usable floor is a well-established route to a utility room, guest suite, study or cinema room.
The two things that decide whether a basement works are waterproofing and light. We use a designed system, normally a cavity drainage membrane with a sump and pump, which carries a guarantee, and we bring light in through a lightwell or a rear opening where the site allows. Ceiling height, drainage and structure are all surveyed at the outset.
Converting an existing cellar without changing the exterior of the house does not usually need planning permission. Lightwells, listed buildings and new excavation do, and the central London boroughs have their own basement policies with impact assessments. All basements need building regulations approval and most involve party wall notices, which we prepare and serve.
- Area
- Earl's Court, SW5
- Council
- Royal Borough of Kensington and Chelsea
- Housing
- Victorian terraces and garden squares, mansion blocks, houses converted to flats
- Transport
- Earl's Court (District, Piccadilly)
- Basement, existing cellar
- 10 to 16 weeks
- Consent
- Often permitted development for lofts
- Waterproofing
- Guaranteed system, designed for the site
Earl's Court: the houses and the planning rules.
Earl's Court is late-Victorian London: tall terraces around garden squares such as Nevern Square and Philbeach Gardens, most of them long since converted into flats, with mansion blocks on the main roads. Ceilings are high, rooms are deep and the building fabric rewards a thorough refurbishment.
Our award-winning living space is here, in Nevern Square: a ground floor reworked as one long room with the kitchen hidden behind a wall of bespoke joinery, featured in House & Garden. We also supplied a seamless Corian worktop and basin for a bathroom in the same square.
The Nevern Square, Philbeach and Earl's Court Village conservation areas cover much of it.
Royal Borough of Kensington and Chelsea
Planning applications go to RBKC. The garden squares are conservation areas and many terraces are listed or locally listed.
Flats
Most properties are leasehold flats, so a licence to alter from the freeholder is normally required alongside building regulations approval.
Party walls
Terraced construction means structural openings and new services usually engage the Party Wall Act; we serve the notices early.
Approvals for basement conversions in Earl's Court.
Converting an existing cellar without altering the exterior does not usually need planning permission; lightwells, listed buildings and new excavation do. Every basement needs building regulations approval and a designed waterproofing system, and most involve party wall notices.
Planning applications go to RBKC. The garden squares are conservation areas and many terraces are listed or locally listed.
What basement conversions in Earl's Court 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.
Basement Conversions in Earl's Court: your questions.
Can I convert a cellar in Earl's Court?
Usually. Converting an existing cellar without changing the outside of the house does not normally need planning permission. Lightwells, listed buildings and new excavation do, and every basement needs building regulations approval.
How do you keep a converted basement dry?
With a designed waterproofing system, typically a cavity drainage membrane with a sump and pump, or tanking where appropriate. It carries a guarantee and is designed for the ground conditions found on site.
Which parts of Earl's Court do you cover?
All of Earl's Court and SW5, including Nevern Square, Philbeach Gardens, Earl's Court Square, Bramham Gardens, Trebovir Road, Warwick Road, 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 Earl's Court.
Other services in Earl's Court.
House Refurbishment in Earl's Court
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Flat Refurbishment in Earl's Court
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House Extensions in Earl's Court
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Structural Alterations in Earl's Court
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Loft Conversions in Earl's Court
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Kitchen Renovation in Earl's Court
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Bathroom Renovation in Earl's Court
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Bespoke Joinery & Fitted Furniture in Earl's Court
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Architectural & Interior Design in Earl's Court
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Planning Permission & Building Regulations in Earl's Court
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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.