Architecture in Marylebone.

Marylebone · W1 · Marylebone listed apartmentCompleted work, photograph

Architecture for Marylebone flats and mews houses. We draw new layouts around the old order of rooms.

Marylebone, drawn around the old plan.

Grade II: A listed Marylebone apartment, completed 2024
11,000+: Listed buildings across Westminster
76%: Of Westminster is conservation area

NU Projects is a design and build company in Fulham SW6, founded in 2010. We handle architecture and planning drawings in Marylebone W1, 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.

Georgian terraces above shops define Marylebone. Behind them run mews houses, smaller and lower.

Westminster counts over 11,000 listed buildings, and many stand here. For a listed home, the arrangement of rooms is itself significant.

That shapes how an architect works. We record the existing plan first. Then new kitchens and bathrooms are placed where they do least harm.

Our Grade II apartment on a first floor shows the method. A spiral staircase and new wardrobes joined the scheme, beside untouched ornament.

Outside, vents, skylights, lightwells and plant must be discreet. Estate freeholders often add a licence of their own.

What the council allows in Marylebone.

Council: City of Westminster.
Conservation: About 76% of Westminster is conservation area, across 56 areas.
Plan form: In a listed house, the original layout of rooms is part of its significance. New layouts are drawn to respect it.
Discreet services: Lightwells, vents, skylights and plant must be sensitively designed and discreetly located.
Estates: Much of Marylebone belongs to large estates. A leaseholder usually needs the estate’s licence too.

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