House Refurbishment Westminster

House refurbishment in Westminster is the smaller part of the work here, because 9% of the City's homes are houses and 91% are flats. Terraced houses make up 8% of all homes, many of them period terraces and townhouses. With 48% of homes built before 1919, a whole house refurbishment usually means renewing wiring, pipework, plaster and joinery inside old fabric, often behind a protected front, while the street outside stays open to the public.

For Westminster, published UK figures put a three-bed house refurbishment at £43,530 to £110,350, and London houses usually cost more, with a London architect allowing £1,800 to £2,200 per square metre before VAT (Checkatrade and Bradley Van Der Straeten Architects, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Westminster: we renew the wiring, pipework, heating, plaster, floors and joinery of the whole house under one contract, and a registered electrician certifies the rewire.

Renewing the fabric of a pre-1919 Westminster townhouse

Refurbishing a pre-1919 home means repairing what is there before adding anything new. With 48% of Westminster homes built before 1919, we expect lath and plaster ceilings, lime mortars and renders, timber floors notched for past pipe runs, and wiring from several decades on one circuit board. Each of these changes the order of work: stripping out first, then a written list of what the walls and floors actually show.

Once the strip out is done, we agree which ceilings are patched in lime and which are replaced, where new services can run without cutting joists, and whether sash windows are overhauled or renewed. Only then does plastering start. On a stucco house the outside is part of the same job, since cracked render and failed paint let water into the walls you are about to redecorate inside. Leaving the render until after the decorators finish simply means doing the inside twice.

Housing in Westminster

By the valuation list's count, Westminster holds about 132,230 homes, 9% houses and 91% flats; by age, 48% were built before 1919, 10% between the wars and 40% since 1945. Where most homes are flats, where most homes in Westminster are flats, a whole house is refurbished as one building, with a single intake for the services and one roof to keep sound.

Windows, doors and roofs under Westminster heritage controls

The front of a Westminster house is often protected, so window, door and roof work is checked before it is priced. There are 56 conservation areas in Westminster, and the council's overview says they cover over 76% of the City. Inside one, planning permission is needed for demolition and for some alterations that would not need it elsewhere. Westminster has also removed permitted development rights in eight conservation areas, where the specified minor alterations need planning permission.

For a house owner, that bears on the items a refurbishment normally renews: sash windows, the front door, roof coverings, rainwater goods and chimney stacks. Like for like repair of a sash, with new cords, beads and draught seals, keeps the job out of the planning question in most cases. A change of material, glazing pattern or roof finish is the point to ask your designer to confirm with Westminster before anything is ordered. We then build to whatever the owner has in hand.

Listed houses and buildings of merit in Westminster

Before any refurbishment in Westminster, check whether the house is listed or marked as a building of merit. The statutory list includes around 11,000 buildings and other structures in Westminster, and the conservation area audits also pick out unlisted buildings of merit that the council treats as locally significant. A listed building needs listed building consent for works that affect its character, inside or out, while a building of merit is a local designation the council takes into account when it considers change to the outside.

On a listed house, original cornices, shutters, doors and staircases are normally repaired rather than swapped, and new bathrooms are planned so pipes do not cut historic joists. Works to a listed building without consent are a criminal offence, so the consent comes before the strip out. The owner or their designer secures it and we build to it, keeping a photographic record of what was found and what was done. That record helps when the house is later sold.

Working on a Westminster street: hours, scaffolding and the pavement

A house refurbishment in Westminster runs to the council's street and noise rules as well as the building regulations. Normal working hours are Monday to Friday 8am to 6pm and Saturday 8am to 1pm, and noisy work outside them needs a Section 61 application at least 28 days before works start. Scaffolding, construction fencing or a cherry picker on the road or pavement needs a temporary structure licence, and the footway must not be reduced to less than 1.5m wide around the works.

Under Westminster's Code of Construction Practice, small Level 4 projects are expected to follow its principles but need no formal approval, monitoring or fees. The 2026 version was approved in March 2026 and applies to existing sites from 1 September 2026. In practice that means planning skip or wait and load collections around the kerb, sheeting the scaffold, and telling neighbours on both sides before the noisy strip out week. We set those items into the programme before the start date.

• Loft insulation topped up while the tank space is cleared
• New boiler, cylinder and radiators sized to every room, fitted by a Gas Safe registered engineer
• Part L insulation where outside walls, floors or roofs are renovated

VOA Council Tax stock of properties, March 2025, for all 24 statistical areas in Westminster. Counts rounded by the VOA.

Two or three things usually come up alongside house refurbishment on a Westminster job: home renovation in Westminster, our Westminster area guide, a building contractor for a whole-house refurbishment, a snagging list before a refurbished house is handed back, house refurbishment across London and New Central Heating Cost.

Why Westminster Homeowners Choose GS Renovation

We run a Westminster house refurbishment as one programme from strip out to handover, in the order strip, first fix, plaster, second fix and finish. Before any finishes go in, you get a written list of what the opened walls and floors showed. We coordinate the registered electrician who certifies the rewire, a registered gas engineer for the heating and the plasterers, and collect the certificates building control asks for at the end. If you live in the house during the work, we phase it floor by floor so one level stays usable.

• Damp traced to its source before anyone suggests an injected course
• Our own trades on site rather than a chain of subcontractors
• A top-floor-first programme when your family stays in the house

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254).