Oak larder cupboard opened to show shelves and drawers.

Design and build in Westminster.

Central London · SW1 · Central London apartment, interiors and joineryCompleted work, photograph

Apartments near the river, in Georgian terraces and mansion blocks. Extensions are rare here, so the design works within the walls.

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Design and build inside the walls.

SW1P · SW1H
Georgian terraces and mansion blocks
11,000+
Listed buildings across the city
7 days
A budget estimate, typically

NU Projects is a design and build company in Fulham SW6, founded in 2010. We handle design and build in Westminster SW1P, under one contract. The calculator gives your own range in a minute, by scope and finish. Call 020 7731 6841, and a budget estimate typically follows within seven days.

Near the river, Westminster is apartments almost entirely. Georgian terraces stand beside mansion blocks, and most homes are leasehold.

So space is found by rearranging rooms, rather than adding them. Where an extension does happen, it usually runs sideways, not outwards.

Much of the area sits in conservation areas. The city counts more than 11,000 listed buildings. In a listed flat, consent reaches plasterwork, panelling and chimneypieces.

Our designers draw the scheme with ARB-registered architects we partner with. Our quantity surveyor prices it open book. The freeholder’s licence runs in parallel with any consent.

We fitted out a 1,500 sq ft apartment in SW1, finished in 2023. Nearby, we refurbished a Belgravia apartment under one contract.

Council
City of Westminster
From the studio
Our Fulham studio is about 4 miles away, as the crow flies.

Also near youPimlicoMayfairBelgraviaMaryleboneKnightsbridge

What the city asks of a Westminster flat.

Council
City of Westminster decides both planning and listed building consent.
Conservation
Westminster has 56 conservation areas, about 76% of the city.
Listed flats
Policy 44. Work to a listed building must keep its special interest.
Room order
In a listed building, the original layout of rooms carries weight.
Leasehold
The lease, the freeholder and the managing agent each decide what may change.
Outside works
No permitted development rights apply to flats. External works need planning.

Source: Westminster’s conservation areas and listed buildings guidance. Read on 25 October 2026. Policies change, so we read them again for your address.

Built nearby in SW1.

Bathroom with a pale vanity, marble top and wide mirror.

Central London·Apartment

Central London apartment, interiors and joinery

A 1,500 sq ft SW1 apartment close by. Cochrane Bespoke made its oak larder.

See the project
Cinema room with a deep corner sofa and copper shelving.

Belgravia·Apartment

Belgravia apartment, full refurbishment

An apartment refurbished nearby in Belgravia, with a cinema room.

See the project

Completed work, photographs

What design and build costs in Westminster.

A Westminster apartment is priced after a free visit.

Fees, VAT and contingency are extra.

Open the calculatorThe 2026 cost guide

Can I extend a Westminster apartment?

Rarely outward. Most gains come from replanning the rooms already there.

Where extension happens, it is usually lateral.

Outside works to a flat always need planning.

Does a listed Westminster flat limit the redesign?

Yes. Consent reaches inside, to plaster, panelling and chimneypieces.

Policy 44 asks that the building’s special interest is kept.

Who else must agree to works in a Westminster mansion block?

The freeholder, through a licence, and often the managing agent.

Their rules can set working hours.

We bring them in before drawings are final.

What has NU completed closest to Westminster SW1P?

A 1,500 sq ft apartment in SW1, finished in 2023.

And a 2,000 sq ft Belgravia apartment, finished in 2022.

Tell us about your home in Westminster.

Your name and one way to reply are enough. It goes straight to the studio.

A phone number or an email is enough. We only need one.

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What is the work?

We call you back within the hour, in working hours. Your details go to the studio and our email system. Read the privacy note.