Flat Conversions Paddington

Flat conversion work in Paddington is shaped by a simple fact: across the VOA area that also takes in St George's Fields and Bayswater East, 92% of homes are already flats and only 8% are houses. Few single houses remain to divide, so the work is as likely to be reworking a townhouse split long ago, adding a flat within an existing conversion, or combining flats back into one house. Every new flat must meet the London Plan space standards and the building regulations for separation. We build to the planning consent and approved drawings, from strip out to sound testing.

In Paddington, 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 Paddington: 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.

Which Paddington buildings still get converted

The candidates are the terraced houses, 8% of homes in the VOA area covering Paddington, St George's Fields and Bayswater East, and older conversions whose layout no longer works. With 47% of homes there built before 1919, and the older streets lined with stucco terraces, the building is most likely a tall period townhouse. Dividing one into self-contained flats always needs planning permission, and your designer will test it against Westminster's City Plan, adopted in its current form on 21 January 2026, including any policy protecting family-sized homes.

The London Plan counts residential conversions among the small-site intensification that helps where it adds homes, which is the argument an application makes. Charges follow too: Westminster levies CIL on new dwellings of any size, so a Paddington conversion that creates an extra flat should check early whether it applies. We work from the approved drawings, and we tell you early if the structure, the stair or the services make a layout harder to build than it looks.

Housing in Paddington

About 11,790 homes are listed for Paddington, and the mix is 8% houses to 92% flats, with 42% built after 1945, 11% in 1919 to 1939 and 47% earlier. Since most homes here are flats, a flat in Paddington can be split or combined only with the freeholder's consent, and changing the number of homes usually needs planning permission as well.

Space standards for each new Paddington flat

Every flat made in a conversion counts as a new dwelling under London Plan Policy D6, so the minimum space standards apply in full. A single bedroom needs at least 7.5 square metres and a width of 2.15m, and a double or twin at least 11.5 square metres. At least 75 per cent of each flat's floor area needs a floor to ceiling height of 2.5m, and the plan should favour dual aspect flats over single aspect ones.

In a Paddington townhouse the principal floors usually clear the height, while the top floor under the roof and any lower ground rooms can fall short, which caps how many flats a building will take. The space standard sits in the planning system, not the building regulations, so the plan is fixed at application stage. Where the borough sets no higher figure, the London Plan also asks for private outdoor space, which a terrace with a small yard struggles to give every flat.

Fire and sound separation between Paddington flats

A house becoming flats is a material change of use, so Part B fire safety and Part E sound insulation apply between every flat. For flats formed this way, Approved Document E sets at least 43 dB airborne insulation for separating walls, floors and stairs, and a maximum of 64 dB impact sound through floors and stairs. In a Paddington townhouse the timber floors between storeys are the weak point, and they need a full upgrade.

We build the separating floors as the approved design specifies, usually with an independent ceiling, acoustic insulation and fire rated boards, and seal every pipe and cable penetration. The common stair becomes a protected escape route with fire doors onto it and a linked alarm. Pre-completion sound tests are booked before decoration, so any failed floor can be corrected while it is still open, and the results go to building control.

Services, neighbours and turning Paddington flats back into a house

Each new flat needs its own electricity supply and meter and its own heating, usually its own water supply and, where gas is used, a gas meter, and its own postal address through the council's street naming and numbering service. Supplier lead times for new meters can hold up occupation, so we raise them early. Where the work cuts into a party wall with the house next door, the building owner serves notice under the Party Wall Act, and we build to any award agreed.

The reverse job also arises in Paddington, where so much of the housing is already divided: combining two flats, or a whole converted townhouse, back into one home. The building work removes surplus kitchens and bathrooms, reopens the stair as one house and merges services and meters. Merging homes can need planning permission in its own right, as London boroughs generally resist the loss of homes, so your designer should confirm the position under Westminster's City Plan before we price the strip out.

• A kitchen and shower room fitted in every new flat
• A consumer unit in every flat, with a registered electrician signing off each installation for Part P
• Flats converted back into a single family house

VOA Council Tax stock of properties, March 2025, for Paddington & St George's Fields and Bayswater East. Counts rounded by the VOA.

When comparing flat conversions in Paddington with other work, it helps to read structural alterations in Paddington, flat conversions across Westminster, builders in London who take on conversions, refurbishing a flat that has already been converted, our London flat conversions page and Party Wall Act Explained.

The GS Renovation Difference in Paddington

A Paddington conversion is judged on work that disappears behind the finishes: separating floors, fire stopping and service routes. We build in the order the testing needs, keep photographs and records of every concealed stage, and build to your structural engineer's details where floors or walls change. The registered electrician, alarm installer and sound tester are programmed so their certificates reach building control on time, and each flat is handed over with its own meters.

• A written scope and programme agreed before work starts
• Common parts, bin stores and cycle stores finished to the planning conditions
• 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.