London Construction & Property Renovation Company

Indicative 2026 London ranges: a Velux conversion £35,000–£50,000, a rear dormer £50,000–£80,000, a hip-to-gable with rear dormer £65,000–£95,000 and a mansard £80,000–£130,000. A written price follows a site visit.

Indicative 2026 London ranges: £800–£1,200 per m² for a standard non-structural refresh, £1,400–£2,000 per m² for a premium full strip with rewire, heating, kitchen, bathrooms and some openings, and £2,000–£3,000+ per m² for bespoke luxury work. A written price follows a survey and a written scope.

Indicatively 5–8 weeks on site for a Velux conversion, 8–12 weeks for a rear dormer, 10–14 weeks for a hip-to-gable with rear dormer and 12–16 weeks for a mansard, plus the design, consent and party wall period beforehand. These are typical indicative timescales only, subject to scope, approvals, structure, lead times and site conditions.

Indicative 2026 London ranges: a like-for-like bathroom £9,500–£12,500, a typical mid-range bathroom £12,500–£18,000, a wet room or layout change £16,000–£28,000, and high-specification or complex rooms £25,000–£40,000+. A kitchen refit (not an extension) is £20,000–£40,000 mid-range and £40,000–£70,000+ premium. A written price follows a site visit.

Many single-storey rear extensions on houses fall under permitted development, but conservation areas, article 4 directions, flats, listed buildings and larger or two-storey footprints normally need a full application. We check the constraints against your specific address before any design work starts.

A like-for-like bathroom is roughly 2–3 weeks and a typical mid-range bathroom or wet room 3–6 weeks; a kitchen refit 4–6 weeks; a loft conversion 5–16 weeks depending on type; a single-storey extension 12–16 weeks and a double-storey 18–24 weeks. A full house refurbishment is programmed from the survey. These are typical indicative timescales only, subject to scope, approvals, structure, lead times and site conditions.

We work across London and Greater London. Tell us your postcode and scope and we will confirm whether we can take the project on.

After a site visit we provide a detailed written quotation and agreed payment schedule against a written scope.

Where required, Foxter can coordinate building control, structural calculations and party wall matters as part of the wider project, and can introduce appropriate professionals where needed.

The portfolio is a library of illustrative concept projects showing the type, scale and finish of work we deliver. They are not records of specific completed client contracts.

Workmanship is covered by our own guarantee, with manufacturer warranties passed on for installed materials and appliances.