Basement and cellar conversions · Cricklewood

Basement and cellar conversions in Cricklewood

Basement and cellar conversions for homes in Cricklewood and the surrounding parts of London, designed around your house and built by our teams under a single written contract.

Covering Cricklewood

We work in Cricklewood (NW2) and the places around it, including Kilburn, Willesden and Notting Hill.

Homes in London

London projects often mean working on period terraces with neighbours on both sides, tight access through the house and conservation area controls, so careful planning and party wall work matter as much as the build.

What is included in a basement conversion in Cricklewood?

A basement conversion turns an existing cellar into dry, usable rooms, or excavates a new basement under a house. Converting an existing cellar is far simpler and cheaper than digging a new one, and often does not need planning permission.

  • Waterproofing design and installation
  • Ventilation, heating and electrics
  • Finished floors, walls and ceilings

What is the guide price for a basement conversion in Cricklewood?

Use these ranges to budget for basement and cellar conversions; the survey turns them into a fixed price for the agreed specification.

Basement and cellar conversionsGuide price incl. VAT
Existing cellar conversion£1,900 to £3,000 per m²
New basement excavation£4,200 to £6,600 per m²

How is a basement conversion approved in Cricklewood?

English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.

Converting an existing cellar with no external changes usually does not need planning permission in England. Digging a new basement or adding a lightwell often does, and many councils have basement policies.

What should I think about before starting?

  • New basements nearly always involve the Party Wall Act in England and Wales.
  • A pump for the drainage system needs a battery back-up.

What happens after I enquire?

  1. Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
  2. Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
  3. Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
  4. We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

Your questions answered

Does a cellar conversion need planning permission?

Usually not if nothing changes outside. New basements and lightwells often do.

Will my neighbours be affected?

New basements usually need party wall agreements. We handle the notices and surveyors.

Do you work in Cricklewood?

Yes. Cricklewood is within our coverage for basement and cellar conversions, along with nearby Kilburn and Willesden.

Basement and cellar conversions in nearby towns

Learn more about basement and cellar conversions, or see every project we cover in Cricklewood.

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