New build cost in Westminster.
Westminster — SW1 — the political and ceremonial heart of London. Residential stock is concentrated in pockets around Westminster Abbey, Victoria Street and St James's Park, with grand mansion flats and a small number of single-family terraces.
What makes new-build work in Westminster distinct.
Site context: Mansion blocks, listed Georgian terraces, and a small number of mews properties.
Planning: Westminster Abbey and Parliament Square Conservation Area, plus overlapping Whitehall and St James's. Many properties are Grade I or Grade II* listed.
Applications go to City of Westminster. We handle the Pre-App, planning submission, party wall awards, CIL calculations and conservation officer correspondence end-to-end.
The five new-build types — SW1 numbers.
All figures inclusive of design, planning, build, CIL, contingency and VAT. The Westminster multiplier (1.28×) reflects local labour, scaffold logistics and finish expectations.
The 2026 London New Build Cost Guide.
Real cost data from our London new-build projects. Plot acquisition, planning strategy, CIL by borough, and the seven hidden costs that catch self-builders out — relevant to Westminster and beyond.
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What Westminster self-builders ask us.
How much does it cost to build a new home in Westminster in 2026?
Typical 2026 Westminster ranges (inc. design, planning, build, CIL & VAT): infill plots £576k–£1.5m; replacement dwellings £768k–£1.9m; garden plots £704k–£1.8m; large new builds £1.2m–£3.2m; multi-unit £1.5m–£5.8m+. The Westminster multiplier (1.28×) reflects local labour, scaffolding logistics and finish expectations.
What's the planning process for a new build in Westminster?
Always full planning permission via City of Westminster. Westminster Abbey and Parliament Square Conservation Area, plus overlapping Whitehall and St James's. Many properties are Grade I or Grade II* listed. Most Westminster new builds start with a Pre-Application (£500–£2,500) to test feasibility, then a full planning submission running 13–18 weeks. Conservation areas, Article 4 directions and proximity to listed buildings add scrutiny.
What kind of plot makes sense in Westminster?
Mansion blocks, listed Georgian terraces, and a small number of mews properties. Plot types that come up most often in SW1: replacement of an existing house (demolish + rebuild), side-garden infills on corner plots, and occasional backland sites accessed via a private drive. Plot acquisition prices in Westminster are part of the equation — we help test feasibility before you commit to a purchase.
How long does a Westminster new build take from purchase to keys?
Allow 6–12 months for design and planning (longer in conservation-sensitive parts of Westminster), then 12–18 months on site for a single dwelling, 18–24 months for a large new build, and 24–36 months for multi-unit schemes. Our build programme is fixed in the contract.
How much is CIL in Westminster?
Community Infrastructure Levy varies by London borough and zone, typically £20–£500 per m² of net additional floorspace. City of Westminster publishes its current CIL rates online; we calculate your specific liability at the planning-application stage. Section 106 affordable housing or infrastructure contributions may apply on larger schemes.
Does 2VP work on Westminster new builds?
Yes — Westminster is within our core London new-build catchment. Our studio is at 20 Dawes Road in Fulham, 6.0km from Westminster. We've delivered new builds across the SW1 postcode and our subcontractor network covers Westminster. Free site visit, fixed-price quote, 10-year HomePro warranty on the finished home.
New-build pricing for Westminster’s neighbours.
Twenty minutes on plot in Westminster.
On us.
Nick Elias RIBA and Vladimir will walk your plot, check planning constraints, estimate CIL and give you a realistic budget and programme — even if a new build isn’t the right call.
One number. Sixty seconds. No callback.
Price your Westminster new build using the same 2026 rate card we quote real clients with.
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