Start a project ↗ARCHITECTURAL SERVICES · KENSINGTON
Architects for Kensington, heritage-led design.
Extensions, loft conversions, flat and HMO conversions, listed buildings and every type of planning application — designed and submitted to Royal Borough of Kensington and Chelsea by a London practice with nearly two decades of planning experience.
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Planning in Kensington
In Kensington, nearly every property is heritage — and planning reflects that.
The Royal Borough of Kensington and Chelsea is around 70% conservation area, with over 4,000 listed buildings. RBKC sets a high bar for design quality and expects applications to be supported by thorough heritage assessment. We prepare the drawings, heritage statements and design arguments the borough expects.
Where we work in Kensington
Kensington, Notting Hill, Holland Park, South Kensington, Earl's Court, North Kensington, Ladbroke Grove, Pembridge, Queen's Gate and Brompton.
What to know before applying
Most Kensington streets are in conservation areas, and many terraces are listed or locally designated. RBKC's basement policy limits depth and extent, and its conservation area appraisals spell out what each street will accept. We review your property's listing and designations before proposing anything.
Extensions & loft conversions
Mansard roofs, rear extensions, internal reconfiguration of listed houses and lateral flat refurbishments are typical projects. For listed buildings, we prepare listed building consent applications alongside planning, covering both external and internal works.
Conversions, HMOs & change of use
Converting or amalgamating flats, changes of use and mews house alterations all need careful policy navigation in RBKC. We set out the realistic options for your building before design starts.
Refused by RBKC?
Send us the decision notice and drawings. We review the officer's reasons and give you a straight answer: which changes would make the scheme approvable, whether an appeal is worth pursuing, or whether the honest advice is that the project is a no-go on this site. We prepare resubmissions and manage appeals to the Planning Inspectorate.
Planning permission across London →
Official sources for Kensington planning
- RBKC planningRoyal Borough of Kensington and Chelsea — applications, policy and guidance
- Planning PortalThe official planning application service for England and Wales
- National Heritage ListHistoric England — check whether a building is listed
- National Planning Policy FrameworkMinistry of Housing, Communities & Local Government

“Kensington's heritage is its value — we design changes the borough sees as protecting it.”
Begin a conversation
Have a property in mind?
Tell us a little about your project and we will come back to you within one working day. Prefer to talk? Call us, or email anytime.
info@simplicity-designs.co.uk ↗







