Basement Conversions in Kenton, HA3
Cellar and basement conversions in Kenton: 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 Kenton.
Where a house cannot grow outwards or upwards, it can grow downwards. Many of the older houses in Kenton 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
- Kenton, HA3
- Council
- London Borough of Harrow and London Borough of Brent
- Housing
- 1930s semi-detached and detached houses with bay windows and long gardens, some larger houses on the avenues, post-war infill
- Transport
- Kenton (Bakerloo, Overground), Northwick Park (Metropolitan)
- Basement, existing cellar
- 10 to 16 weeks
- Consent
- Often permitted development for lofts
- Waterproofing
- Guaranteed system, designed for the site
Kenton: the houses and the planning rules.
Kenton is Metroland between Harrow and Wembley: long avenues of 1930s semis with tiled bays, hipped roofs and gardens deep enough for a full-width extension. The houses were well built and most have never been extended beyond a small kitchen addition, so the potential is considerable.
The typical Kenton project is a rear extension for an open-plan kitchen and family room, a hip-to-gable loft with a rear dormer for two more bedrooms, and a refurbishment of the rest of the house to match. Because there are no conservation areas, most of it is permitted development.
There are no conservation areas in Kenton; most streets are unrestricted.
Harrow and Brent
The borough boundary runs through Kenton; we check which council applies at the first visit. Both allow most rear extensions and lofts under permitted development.
Hip-to-gable lofts
The 50 cubic metre allowance for semi-detached houses usually covers a hip-to-gable conversion with a rear dormer, confirmed by a lawful development certificate.
Larger extensions
Double-storey rear extensions and side extensions that come within a metre of the boundary need a householder application.
Approvals for basement conversions in Kenton.
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.
The borough boundary runs through Kenton; we check which council applies at the first visit. Both allow most rear extensions and lofts under permitted development.
What basement conversions in Kenton 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 Kenton: your questions.
Can I convert a cellar in Kenton?
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 Kenton do you cover?
All of Kenton and HA3, including Kenton Road, Kenton Lane, Woodcock Hill, Draycott Avenue, Claremont Avenue, Streatfield Road, 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 Kenton.
House Refurbishment in Kenton
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Flat Refurbishment in Kenton
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House Extensions in Kenton
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Structural Alterations in Kenton
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Loft Conversions in Kenton
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Kitchen Renovation in Kenton
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Bathroom Renovation in Kenton
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Bespoke Joinery & Fitted Furniture in Kenton
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Architectural & Interior Design in Kenton
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Planning Permission & Building Regulations in Kenton
Read moreBasement Conversions across London.
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All of North-West LondonTalk to us about a basement conversion in Kenton.
We will visit, listen and explain what is possible for your property and how it would be approved. No pressure, no sales pitch.