Drawing room with low sofas beside a tall sash window and panelled walls.

Planning consultants in Marylebone.

Marylebone · W1 · Marylebone listed apartmentCompleted work, photograph

Planning and listed building consent for Marylebone apartments. We have renovated a Grade II listed flat here.

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Listed rooms in Marylebone, drawn around the plasterwork.

Grade II
Our listed apartment here
11,000+
Listed buildings in Westminster
W1U · W1G · NW1
City of Westminster

NU Projects is a design and build company in Fulham SW6, founded in 2010. We handle planning applications and appeals in Marylebone W1, under one contract. Fees are priced per project by our own quantity surveyor, from the actual scope. Call 020 7731 6841, and a budget estimate typically follows within seven days.

Marylebone is Georgian terraces above shops, most now split into apartments. Mews houses sit behind the main streets. Much of the land belongs to large estates.

For an apartment, listed building consent is often the bigger question. Westminster has over 11,000 listed buildings. Consent covers inside work that touches a building’s character.

In a listed building the original layout of rooms carries significance. A new kitchen or bathroom is drawn to respect it. Pipes and cables are routed so the ornament stays whole.

The application explains what is special and why each change is justified. A schedule of works lists every cornice, door and shutter affected. Method notes describe how each is protected during the build.

Our Grade II listed apartment here kept its plasterwork, chimneypieces, panelling and shuttered sashes. A modern marble kitchen sits inside those rooms.

What Westminster protects in Marylebone.

Council
Westminster City Council handles planning and listed building consent together.
Listed interiors
In a listed building, consent covers interior work that touches its character.
Plan form
The original arrangement of rooms forms part of a listed building’s significance.
Street views
Most of Marylebone is conservation area. Visible changes face careful review.
Plant
Lightwells, vents, skylights and plant must be sensitively designed and discreetly located.
Freeholders
Big landed estates own much of the area. Their licence often sits beside consent.

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

What planning costs in Marylebone.

Listed building consent is priced with the planning work, as one fee.

We confirm it in writing after the first survey.

Open the calculatorThe 2026 cost guide

Does a listed Marylebone flat need consent for a new kitchen?

Often, if the work touches the building’s character.

Plasterwork, panelling and chimneypieces are part of the listing.

We draw the kitchen around them.

Who else must approve work to a Marylebone apartment?

Usually the estate or freeholder, by licence.

That sits beside Westminster’s planning and listed building consent.

Can I put an air conditioning unit outside a Marylebone flat?

A flat has no householder permitted development rights, so it needs planning.

Plant must be sensitively designed and discreetly located.

Is all of Marylebone a conservation area?

Most of it is.

Changes seen from the street are judged closely there.

Tell us about your home in Marylebone.

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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