Basement Conversions in Edgware, HA8
Cellar and basement conversions in Edgware: 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 Edgware.
Where a house cannot grow outwards or upwards, it can grow downwards. Many of the older houses in Edgware 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
- Edgware, HA8
- Council
- London Borough of Barnet and London Borough of Harrow
- Housing
- 1930s semi-detached and detached houses on wide plots, larger houses around Canons Park and Edgwarebury, post-war houses and new apartments near the station
- Transport
- Edgware (Northern), Canons Park (Jubilee)
- Basement, existing cellar
- 10 to 16 weeks
- Consent
- Often permitted development for lofts
- Waterproofing
- Guaranteed system, designed for the site
Edgware: the houses and the planning rules.
Edgware is the northern end of the Northern line and one of the most generously planned of the inter-war suburbs: wide avenues of 1930s detached and semi-detached houses, the larger homes around Canons Park and up towards Edgwarebury, and a town centre that is being rebuilt with new apartments.
The plots are wide enough for side extensions as well as rear ones, which opens up the whole ground floor, and the hipped roofs convert well. We do full refurbishments, double-storey extensions and lofts here, and the detached houses around Canons Park attract projects at the top of the suburban market.
The Edgware Conservation Area covers a small part of the old High Street and Canons Park; most streets are unrestricted.
Barnet and Harrow
Edgware straddles the two boroughs; Barnet covers most of it. Both allow most single-storey extensions and lofts under permitted development outside the conservation area.
Side extensions
Single-storey side extensions up to half the width of the house are usually permitted development; two-storey side extensions need a householder application.
Canons Park
Around Canons Park, the conservation area and protected trees affect what can be built and how close to the boundary.
Approvals for basement conversions in Edgware.
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.
Edgware straddles the two boroughs; Barnet covers most of it. Both allow most single-storey extensions and lofts under permitted development outside the conservation area.
What basement conversions in Edgware 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 Edgware: your questions.
Can I convert a cellar in Edgware?
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 Edgware do you cover?
All of Edgware and HA8, including Edgwarebury Lane, Broadfields Avenue, Canons Drive, Green Lane, Hale Lane, Penshurst 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 Edgware.
House Refurbishment in Edgware
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Flat Refurbishment in Edgware
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House Extensions in Edgware
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Structural Alterations in Edgware
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Loft Conversions in Edgware
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Kitchen Renovation in Edgware
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Bathroom Renovation in Edgware
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Bespoke Joinery & Fitted Furniture in Edgware
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Architectural & Interior Design in Edgware
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Planning Permission & Building Regulations in Edgware
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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.