Builders in Westminster
Belgravia, Marylebone, St John's Wood — Grosvenor and de Walden territory, managed properly.
Arrange a site visit →Westminster concentrates everything about London building at its most demanding: the Grosvenor, Howard de Walden and Portman estate licence regimes, a blanket of conservation areas and listings, the borough's basement and roof-terrace policies, and streets where the neighbours know the rules better than most professionals. From the white stucco of Belgravia to the Georgian terraces of Marylebone and the detached villas of St John's Wood, the work is a consent-and-logistics discipline before it is a construction one.Our SW1 and W1 programmes run as full design and build contracts: Westminster planning, listed building consent, the estate licence and the party wall awards tracked in parallel, the construction management plan written before the digger is booked, and the interiors carried by our in-house team.
Basements, terraces and the policy lines
Westminster consents basements that demonstrate no harm to neighbours, structure or trees, and assesses roof terraces for overlooking and amenity. Both are consentable with the right design; neither with a generic one.
Rebuilds behind retained facades
On some St John's Wood plots the honest answer is a new house behind a retained elevation — the most demanding project type we run, and the reason the design and build model exists. Foundations to finishes, engineered and signed off.
The finish is the product
Westminster houses reward the specification: services, joinery and finishes that match the architecture, carried by the same team that manages the consents.
Projects close to here.
Areas we cover in Westminster
What we build in Westminster
Answers, before you ask.
Do I need the estate's permission as well as planning?
On Grosvenor, Howard de Walden and Portman streets, yes — the licence runs alongside Westminster's consents. We track both in parallel.
Are basements allowed in Westminster?
Where the design demonstrates no harm to neighbours, structure or trees, with a full construction management plan. Many houses carry consentable schemes; we assess the specific one first.
Can you combine flats into one lateral apartment?
Yes — planning where required, structural works and the full refurbishment, with the neighbour management an occupied building demands.
Planning a project?
Send us the drawings and we will price it properly — one contractor, fixed programme, itemised quote.
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