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Greater London Borough

Kensington and Chelsea
Planning & Building Contacts

The second smallest London borough by area, with over 4,000 listed buildings, around 40 conservation areas covering the vast majority of the built environment, and the most intensive planning scrutiny of any residential borough in England.

Updated August 2026
London Borough
Central London
All London Boroughs

Planning Authority

Kensington and Chelsea Council - local planning authority for the borough
Permitted development rights are removed across virtually the entire borough through a comprehensive network of Article 4 Directions. Planning permission is required for extensions, roof alterations, changes to windows and doors, and many other works that would be permitted development elsewhere. Pre-application advice is essential for any project in RBKC.
Kensington and Chelsea Council - Planning
Kensington Town Hall, Hornton Street, London, W8 7NX
LPA
020 7361 3012
RBKC has the highest concentration of listed buildings of any London borough - over 4,000, covering around 50% of all buildings in the borough. Around 40 conservation areas cover almost the entire built environment. Basement developments have been a major planning issue - the borough has specific basement policy. The Chelsea and Kensington riversides have significant amenity and flood risk considerations. Notting Hill, Portobello Road and Holland Park are particularly sensitive planning areas.
Building Control
Kensington and Chelsea Council
Building Control
Building regulations approval is required for most structural work, extensions, loft conversions, new windows and heating system changes. You may use either the council's own building control service or a private Approved Inspector. For listed buildings, building control must be coordinated with Listed Building Consent requirements.

Heritage

Listed buildings, conservation areas and historic environment
Historic England - London Office
Statutory consultee for listed buildings and scheduled monuments
Heritage
020 7973 3000
The Royal Hospital Chelsea (Grade I, Christopher Wren) is among the most significant buildings in the borough. Leighton House Museum (Grade II*) and Holland House (Grade II*) are notable cultural heritage assets. Kensington Palace (Grade II*) sits on the borough boundary. The borough's Victorian and Georgian terraces in Chelsea, Kensington and Notting Hill represent some of the finest residential architecture in the world. Around 40 conservation areas protect almost the entire historic built environment. Listed Building Consent is required in addition to planning permission for any works to a listed building that would affect its special architectural or historic interest, including internal works.

Environment Agency

Flood risk and environmental permitting
Environment Agency - Thames Region
Flood risk, environmental permitting
Environment
Flood risk in Kensington and Chelsea is primarily from the tidal Thames along the Chelsea Embankment. Chelsea Embankment properties and lower-lying streets near the river lie within Flood Zone 3. The Counters Creek (now culverted under Warwick Road) creates some residual surface water flood risk. Check the flood map for any development near the Thames or in lower-lying areas of the borough.

Local Professionals for Kensington and Chelsea

Vetted specialists with experience working in this borough
Kensington and Chelsea's exceptional heritage environment, ultra-high-value residential market and intensive planning regime create consistent demand for RIBA and RTPI chartered professionals experienced in the borough's complex requirements. All slots are currently available - enquire to feature your practice on this page.
Architects
Architect slot available
Promote your practice to Kensington and Chelsea homeowners
Reach people actively planning extensions, loft conversions and refurbishments across SW1X, SW3, SW5, SW7, SW10, W8, W11, W14.
Enquire about this slot
Architect slot available
Promote your practice to Kensington and Chelsea homeowners
Reach people actively planning extensions, loft conversions and refurbishments across SW1X, SW3, SW5, SW7, SW10, W8, W11, W14.
Enquire about this slot
Builders & General Contractors
Builder slot available
Reach homeowners planning work in Kensington and Chelsea
Extensions, loft conversions, refurbishments and new builds across SW1X, SW3, SW5, SW7, SW10, W8, W11, W14.
Enquire about this slot
Builder slot available
Reach homeowners planning work in Kensington and Chelsea
Extensions, loft conversions, refurbishments and new builds across SW1X, SW3, SW5, SW7, SW10, W8, W11, W14.
Enquire about this slot
Planning Consultants
Planning consultant slot available
Reach clients needing planning advice in Kensington and Chelsea
High-intent audience - people already researching planning requirements for projects in Kensington and Chelsea.
Enquire about this slot
Planning consultant slot available
Reach clients needing planning advice in Kensington and Chelsea
High-intent audience - people already researching planning requirements for projects in Kensington and Chelsea.
Enquire about this slot
Surveyors
Structural engineer slot available
Structural Engineers
Reach homeowners and developers needing structural calculations for extensions, loft conversions and basement work across Kensington and Chelsea.
Enquire about this slot
Party wall surveyor slot available
Party Wall Surveyors
Reach homeowners and neighbours needing party wall awards and notices for work in Kensington and Chelsea.
Enquire about this slot
Heritage Consultants
Heritage consultant slot available
Heritage & Conservation Specialists
Specialist heritage statements, impact assessments and listed building advice for projects in Kensington and Chelsea.
Enquire about this slot
Heritage consultant slot available
Heritage & Conservation Specialists
Specialist heritage statements, impact assessments and listed building advice for projects in Kensington and Chelsea.
Enquire about this slot