Flat Conversions Romford

Splitting a Romford house into flats needs planning permission, and Havering's Local Plan sets a size test first. Under Policy 9 the council looks for 120 sq m or more of original floor space, and one of the new homes has to be a family unit with 3 or more bedrooms. Houses make up 65% of Romford's homes, so there are plenty of candidates, but a smaller terrace can fall below that line. Where a house does qualify, we carry out the conversion to the approved drawings, from the separating floor to two finished homes.

In Romford, 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 Romford: 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 Romford houses Havering allows to be split into flats

Measure before you draw. Havering will not support dividing a house under 120 sq m into two smaller units. Any scheme that passes must pair a family home of the 3b4p type, sized at 74 sq m or more, with a 1b1p or 1b2p flat. In Romford that can rule out a smaller terrace or a modest semi. The first step is a measured survey of the original building, leaving out later extensions, before anyone pays for a full design.

Havering also prefers the larger home downstairs, with its own door onto private garden space it can actually use. So in a Romford conversion the garden normally stays with the ground floor, and the smaller home goes above with a separate entrance or a shared hall. That arrangement sets where we cut the new front door, how the stair gets its fire-resisting enclosure and which floor takes the heavier acoustic build-up.

Housing in Romford

Romford has around 20,230 homes on the Council Tax list: 43% post-war, 42% interwar and 15% predate 1919, with 35% flats and 65% houses. 28% of homes here are terraced; a converted terrace in Romford has two party walls to consider for sound.

Room sizes and ceiling heights in a Romford conversion

Each new Romford flat has to be a proper home by the numbers. Havering Policy 7 backs schemes that meet the national space standards and London's ceiling height rule. London Plan Policy D6 then gives the room minimums: a single bedroom needs 7.5 sq m of floor and a width of 2.15m or more, and a double or twin bedroom needs 11.5 sq m. Those sizes decide where the new partitions land, so we set them out on the floor before any stud goes up.

Height is the common trap in an interwar Romford house. Policy D6 asks for 2.5m from floor to ceiling across 75 per cent or more of each flat's internal area. A new acoustic floor and a fire-rated ceiling between the two homes both take depth from that, so the designer needs measured heights and the proposed floor build-up together. We take those measurements on site early, when changing the layout is still cheap.

Fire and sound separation between the new Romford flats

The floor between two Romford flats has to resist fire and block sound, and the sound part is measured on site. For flats created by a change of use, Approved Document E asks walls, floors and stairs to reach 43 dB for airborne sound, while impact sound through floors and stairs may not exceed 64 dB. We lay resilient layers and insulation, hang a heavier ceiling beneath and seal round every pipe and cable that crosses the line.

Fire separation under Part B follows the same logic in general terms. The separating floor and any shared hall or stair are built to resist fire, each flat gets a fire door onto the common route, and smoke detection is linked as the designer specifies. Building control checks the detail as it goes in; our job is to leave no gaps. A pre-completion sound test then checks the result before the two Romford homes are signed off.

Separate services, addresses and party walls for Romford flats

Two flats need two of everything a household pays for. Each new Romford flat gets its own electricity supply and meter, its own heating and hot water, and usually its own gas meter or an all-electric system instead. Water can stay on one supply or be split. The utility companies set the lead times for new meters, so we apply for them early and route the new risers through the fire-separated shared hall rather than through the other flat.

Each new flat also needs a postal address from Havering Council under street naming and numbering, which the owner requests so that the utilities and the Land Registry can register it. Where the work cuts into a party wall with the house next door, for a new beam bearing or a stair, the Party Wall Act 1996 applies. Havering's building control pages state that party wall works are a civil matter and the council has no enforcement power to intervene, so the building owner serves notice and agrees it with the neighbour before we start.

• House to flat conversions into two or more self-contained units
• Separating floors with independent ceilings and acoustic insulation
• Fire stopping round every pipe and cable through a separating floor

VOA Council Tax stock of properties, March 2025, for all 5 statistical areas in Romford. Counts rounded by the VOA.

Related reading for Romford homeowners planning flat conversions: structural alterations in Romford, flat conversions across Havering, building control sign-off for a conversion, renovations across London, flat conversions anywhere in London and Party Wall Act Explained.

Why Choose GS Renovation in Romford

A flat conversion in Romford brings structure, fire separation, acoustics and two sets of services together, and the problems appear where those trades meet. We run them as one programme under one contact. Our founder has more than three decades of hands-on building experience. The owner's structural engineer designs any new openings, and a registered electrician certifies each flat's circuits. The owner's designer and building control get drawings and a programme they can work with, and you get a written quotation after a survey.

• Mains-wired, interlinked smoke and heat alarms to the approved fire strategy
• Structural engineer instructed and coordinated on your behalf
• Every flat checked against the space standard before the layout is priced

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.