Flat Conversions Camden

A flat conversion in Camden means dividing a house into self-contained flats, reworking an older division, or joining flats back into one home. Houses are only 12% of Camden's homes, so a Victorian terrace or Georgian townhouse still in one piece is a scarce thing, and the council's housing policies test each conversion closely. We build to the consented layout: separating floors and walls, a protected stair, separate services for each flat and the finishes.

In Camden, converting a house into two or three flats is published at £50,000 to £120,000 including professional and council fees, and an England-wide guide puts a straightforward two-flat split at £40,000 to £80,000 in construction alone, which is the part a builder prices (indicative London ranges, Architectural Drawings and Mayfair Studio, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Camden: we build the conversion to the approved drawings, building control inspects the fire and sound separation, and a registered electrician certifies each flat's electrics.

Camden planning policy guards the number and size of homes

The unit count is settled by Camden's Local Plan before any wall moves. Under Policy H3, a scheme that would lose two or more homes overall is resisted, with exceptions only where it produces large homes, adapts affordable ones or brings undersized flats up to space standards. Knocking three small flats back into one family house therefore needs one of those reasons, written into the planning application by your designer.

Splitting in the opposite direction has its own test. Policy H7 asks every housing scheme in Camden, conversions of existing houses included, to feed the Dwelling Size Priorities Table with a blend of large and small units. A house carved purely into studios works against that. For us the approved mix is what fixes the new party walls, kitchens and bathrooms, so the price is built from the consented layout rather than an early sketch.

Housing in Camden

The stock in Camden runs to roughly 113,890 dwellings, 88% of them flats and 12% houses, built 48% before 1919, 9% between 1919 and 1939 and 42% after 1945. Since most homes here are flats, a flat in Camden can be split or combined only with the freeholder's consent, and changing the number of homes usually needs planning permission as well.

Room sizes and ceiling heights in converted Camden flats

Space standards bite on a Camden conversion just as they do on a new block. London Plan Policy D6 counts conversions and changes of use as new dwellings, and its room minimums include 7.5 sq m for a single bedroom no narrower than 2.15m, and 11.5 sq m for a double. Ceilings must reach at least 2.5m over at least 75 per cent of each flat's Gross Internal Area, measured to the finished floor and ceiling.

Camden treats the nationally described standard with some give where homes come from conversion or change of use, weighing up what an existing building allows, above all where listed buildings and heritage assets are involved. That helps with a Georgian plan that cannot be shuffled, yet it remains a planning judgement rather than an exemption. On site we set out partitions to finished sizes, allowing for dry lining, and check ceiling heights against the new floor build-up.

Consents, CIL and separate services for each new Camden flat

A house into flats always needs planning permission, and in Camden the designations often add more. Camden has 40 conservation areas covering about half of the borough and more than 5,600 listed buildings, and any change to a listed building needs listed building consent as well. Camden's Community Infrastructure Levy applies to all proposals which add 100 square metres of new floorspace or an extra dwelling, so a conversion that adds a flat falls within it, and the owner's agent confirms what, if anything, is payable.

Each new flat needs its own services: its own electricity meter and consumer unit, its own heating, a water supply with its own stopcock, and a new address through street naming and numbering. Where new beams bear on a party wall or a wall is cut into, the building owner serves notices under the Party Wall Act. We plan the service runs, meter positions and riser routes on the drawings so each supplier connects without opening finished work.

Sound and fire separation between Camden flats

In a converted Camden house the separating floors and walls do the heavy lifting. For flats created by material change of use, Approved Document E asks for 43 dB airborne sound insulation through walls, floors and stairs, and no more than 64 dB impact sound through floors and stairs. An old joisted floor over a lath ceiling seldom reaches that unaided, so the usual build-up adds a resilient layer, extra mass and an independent ceiling below.

Fire separation under Part B follows the same lines through the building: fire resisting floors and walls between flats, a protected common stair, a fire door to each flat, and every pipe or cable hole sealed where it crosses a compartment. We plan the acoustic and fire layers together because they share the same ceilings and floors. Pre-completion sound tests are then booked so results are in hand before building control signs the conversion off.

• Separate gas, electricity and water supplies for each flat
• Flats converted back into a single family house
• A consumer unit in every flat, with a registered electrician signing off each installation for Part P

VOA Council Tax stock of properties, March 2025, for all 27 statistical areas in Camden. Counts rounded by the VOA.

For the wider picture around flat conversions in Camden, see structural alterations in Camden, our Camden area guide, building control sign-off for a conversion, the Party Wall Act when a conversion cuts a shared wall, how we handle flat conversions across London and Adding Value to a London Flat.

Why Choose GS Renovation in Camden

A conversion is a sequence of approvals and hidden work, and we keep that order clear: consented drawings first, then strip-out, structure, separating floors and walls, services for each flat, fire protection, sound testing and finishes. The owner or their designer secures planning; we build to the consent and supply the programme, test results and certificates needed along the way. The founder, Abdelaaziz Saaid, brings decades of hands-on building, and you get a written quotation after a site visit.

• Fire strategy for the stair and each flat entrance settled before strip-out
• Free, no-obligation quotations
• Mains-wired, interlinked smoke and heat alarms to the approved fire strategy

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254). Structural design is by the consulting engineer appointed to your project.