Planning permission drawings, Listed Building Consent, heritage-sensitive extensions, and building regulations for Marylebone's Georgian terraces and mansion flats. MCIAT chartered, fixed fees, Westminster heritage expertise built in.
Marylebone sits in the W1 postcode within the City of Westminster. The neighbourhood's Georgian and Regency townhouses, Victorian mansion blocks, and mews streets — combined with near-complete conservation area coverage and extensive listing — make it one of London's most heritage-dense residential markets.
Conservation areas: Harley Street, Portman Estate, and Marylebone CAs cover the neighbourhood. Article 4 Directions remove PD rights throughout. Heritage Statements and Design & Access Statements accompany every application.
Listed buildings: A significant proportion of Marylebone housing is listed. Listed Building Consent runs in parallel with planning permission. Works to protected interiors — staircases, fireplaces, panelling — require particular care. We coordinate with Historic England where required.
Mansion blocks: Marylebone has substantial Victorian and Edwardian mansion blocks. Flat reconfigurations, window replacements, and balcony additions require planning permission and freeholder consent. Our drawings meet Westminster's strict standards.
Mews houses: The protected mews streets — Devonshire Mews, Queen Anne Mews, etc. — have their own design requirements. Rear additions, rooflights, and garage conversions all need planning permission.
Single planning or regs submission.
Planning + building regs + structural.
Listed, conservation, complex sites.
Direct answers to the questions Marylebone homeowners ask us every week about planning, extensions, and loft conversions.
Start a free quoteIf your property is listed — yes, for virtually all internal and external works affecting character. Our team prepares the Listed Building Consent application alongside planning permission.
Possibly — rear extensions, roof alterations, and basement works may be achievable subject to heritage constraints. Every scheme requires planning permission. We prepare heritage-sensitive applications.
Internal reconfigurations usually need freeholder consent plus planning permission in listed buildings. Building Regulations approval is always required. We prepare the full package.
The Complete package from £1,750 is essential for Marylebone. Listed Building Consent projects may require bespoke pricing reflecting the heritage scope.
Westminster targets 8–13 weeks depending on scale. Listed Building Consent runs in parallel. Pre-application advice is strongly recommended. We manage the full process.
We cover every London neighbourhood. Here are areas adjacent to Marylebone where we work regularly.
Every service you need for a Marylebone project, from a single chartered team.
Full planning applications — heritage-sensitive drawings, Design & Access Statements, council officer liaison.
Construction-ready drawing packages compliant with all Approved Documents, submitted to local Building Control.
Dormers, mansards, and Velux conversions designed for local roof profiles and planning constraints.
Free quote in 60 seconds. Fixed fee from £840. MCIAT chartered. Conservation area expertise included.
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