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RBKC Planning

Architectural technology in Kensington and Chelsea

Planning drawings, building regulations, loft conversions, house extensions and mansards — delivered across Kensington and Chelsea by MCIAT chartered technologists with deep knowledge of RBKC Planning's policies.

Kensington and Chelsea at a glance

Planning authority
RBKC Planning
Population
143,000
Conservation areas
38
Article 4 Direction
Yes — HMO and more
Postcodes
SW1, SW3, SW5, SW7, SW10, W8, W10, W11, W14
Typical housing
Grand white stucco Regency and Victorian terraces
Architectural planning drawings for a London project — architectural drawings in Kensington & Chelsea
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Services available in Kensington and Chelsea

Every architectural service in Kensington and Chelsea — one chartered team.

Planning Drawings in Kensington and Chelsea

A fixed-fee, end-to-end service — measured survey, scaled drawings, Design & Access Statement where required, Planning Portal submission, an...

Building Regulations Drawings in Kensington and Chelsea

A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessib...

Loft Conversions in Kensington and Chelsea

Every loft type across every Kensington and Chelsea roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full planning route, building regu...

House Extensions in Kensington and Chelsea

The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with detailed technical p...

Mansard Roof Extensions in Kensington and Chelsea

Kensington and Chelsea's most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards that get approved in ...

Garage Conversions in Kensington and Chelsea

Turn your unused Kensington and Chelsea garage into a bedroom, home office or open-plan kitchen-diner. Planning route assessment, full building regulati...

Basement Conversions in Kensington and Chelsea

Full architectural technology service for basement digs and cellar conversions in Kensington and Chelsea — structural underpinning design, waterproofing...

Structural Calculations in Kensington and Chelsea

Chartered structural engineer calculations for every residential intervention in Kensington and Chelsea — steel beams, lintels, pad foundations, wall re...

Measured Building Surveys in Kensington and Chelsea

Fixed-fee measured surveys across Kensington and Chelsea from £540 — floor plans, elevations and sections to ±3mm accuracy. Leica Disto laser + BLK360 p...

Party Wall Services in Kensington and Chelsea

End-to-end Party Wall Act 1996 service for Kensington and Chelsea — Section 1, 3 and 6 notices, schedule of condition surveys, party wall award coordina...

Rear Dormer Loft Conversions in Kensington and Chelsea

London's most popular loft type — the full-width rear dormer. Planning or Permitted Development route assessed for your Kensington and Chelsea property,...

Kensington and Chelsea planning context

Planning in Kensington and Chelsea

Housing stock: Grand white stucco Regency and Victorian terraces; red-brick Queen Anne mansions in Kensington; Edwardian mansion blocks; almost no post-war housing stock.

Character: Internationally wealthy residents; extensive listed building coverage; heritage and streetscape prioritised in every decision.

Notable conservation areas: Kensington, Chelsea, Notting Hill, Holland Park, Earls Court

Article 4 Direction: Article 4 Directions covering HMOs, office-to-residential, and basement developments — RBKC has some of the strictest basement policies in London.

Basement policy: RBKC's basement policy (post-2015) limits to single-storey under 50% of garden area; double-storey basements effectively prohibited in residential streets.

Areas within Kensington and Chelsea

Drawings across Kensington and Chelsea by area

Nearby boroughs

Boroughs adjacent to Kensington and Chelsea

Stucco Georgian townhouses in Kensington W8
MCIAT Chartered council-ready drawing review Fixed fees from £840 All 33 London boroughs
All services in Kensington and Chelsea

What we do in Kensington and Chelsea

Planning Drawings in Kensington and Chelsea

A fixed-fee, end-to-end service — measured survey, scaled drawings, Design & Access Statement where required, Planning Portal submission, an...

Building Regulations Drawings in Kensington and Chelsea

A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessib...

Loft Conversions in Kensington and Chelsea

Every loft type across every Kensington and Chelsea roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full planning route, building regu...

House Extensions in Kensington and Chelsea

The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with detailed technical p...

Mansard Roof Extensions in Kensington and Chelsea

Kensington and Chelsea's most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards that get approved in ...

Garage Conversions in Kensington and Chelsea

Turn your unused Kensington and Chelsea garage into a bedroom, home office or open-plan kitchen-diner. Planning route assessment, full building regulati...

Basement Conversions in Kensington and Chelsea

Full architectural technology service for basement digs and cellar conversions in Kensington and Chelsea — structural underpinning design, waterproofing...

Structural Calculations in Kensington and Chelsea

Chartered structural engineer calculations for every residential intervention in Kensington and Chelsea — steel beams, lintels, pad foundations, wall re...

Measured Building Surveys in Kensington and Chelsea

Fixed-fee measured surveys across Kensington and Chelsea from £540 — floor plans, elevations and sections to ±3mm accuracy. Leica Disto laser + BLK360 p...

Party Wall Services in Kensington and Chelsea

End-to-end Party Wall Act 1996 service for Kensington and Chelsea — Section 1, 3 and 6 notices, schedule of condition surveys, party wall award coordina...

Rear Dormer Loft Conversions in Kensington and Chelsea

London's most popular loft type — the full-width rear dormer. Planning or Permitted Development route assessed for your Kensington and Chelsea property,...

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Where in Kensington and Chelsea does a drawing package actually get determined?

Every Kensington and Chelsea postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. Kensington and Chelsea fees below are the statutory England rates for 2026, not drawing package estimates.

PostcodeAreaDominant stockWhat it means for a drawing package
SW5Earl's CourtStucco terraces, Edwardian mansion blocksEarl's Court sits wholly inside SW5, so RBKC Planning validates every drawing package submitted from an SW5 address.
SW7South Kensington / KnightsbridgeStucco terraces, mansion blocks, listed buildingsSouth Kensington / Knightsbridge is split at SW7. Either RBKC Planning or Westminster City Council can determine a drawing package here, so the SW7 address is checked against both policies maps first.
SW10West Brompton / World's EndGeorgian and Victorian terraces, listed buildingsA drawing package in West Brompton / World's End may land with RBKC Planning or Hammersmith & Fulham Council — SW10 crosses the boundary, and the SW10 policies map decides it street by street.
W8KensingtonStucco terraces, listed buildingsKensington sits wholly inside W8, so RBKC Planning validates every drawing package submitted from an W8 address.
W10North Kensington / Ladbroke GroveVictorian terraces, post-war estatesA drawing package at an W10 address in North Kensington / Ladbroke Grove is determined by RBKC Planning under its own Local Plan policies for North Kensington / Ladbroke Grove.
W11Notting Hill / Holland ParkVictorian stucco terracesW11 covers Notting Hill / Holland Park only; RBKC Planning handles the drawing package, and Notting Hill / Holland Park case officers apply the W11 conservation-area map.
SW1XKnightsbridge / BelgraviaRegency stucco terraces, listed buildingsKnightsbridge / Belgravia is split at SW1X. Either Westminster City Council or RBKC Planning can determine a drawing package here, so the SW1X address is checked against both policies maps first.
W14West Kensington / Barons CourtVictorian and Edwardian villasWest Kensington / Barons Court is split at W14. Either Hammersmith & Fulham Council or RBKC Planning can determine a drawing package here, so the W14 address is checked against both policies maps first.

How does a drawing package differ street by street across Kensington and Chelsea?

Roof pitch, wall build-up and plot depth change every few Kensington and Chelsea streets, and each one changes what a drawing package can achieve at that address.

Does Kensington and Chelsea planning policy restrict a drawing package?

Kensington and Chelsea conservation designations: there are 38 across RBKC Planning, Chelsea, Notting Hill, Holland Park among them. Designation costs a Kensington and Chelsea owner the permitted-development route: a drawing package then needs a £258 householder application over 8 weeks, in place of the £120 prior approval route that takes 6 weeks. Holland Park is the Kensington and Chelsea designation that most often changes a drawing package design.

Kensington and Chelsea and Article 4: Article 4 Directions covering HMOs, office-to-residential, and basement developments — RBKC has some of the strictest basement policies in London. A drawing package planned at a SW3 address is checked against that direction first; RBKC Planning publishes the Kensington and Chelsea extent, and the SW3 line rarely follows the Kensington and Chelsea boundary you would expect.

Digging below a Kensington and Chelsea property: RBKC's basement policy (post-2015) limits to single-storey under 50% of garden area; double-storey basements effectively prohibited in residential streets. Where a drawing package in Kensington and Chelsea involves excavation that is read beside the Party Wall etc. Act 1996, which needs two months notice for a Kensington and Chelsea dig within 3 m of a neighbour, and RBKC Planning expects the SW3 ground conditions addressed in the application.

What Kensington and Chelsea is built from: Grand white stucco Regency and Victorian terraces; red-brick Queen Anne mansions in Kensington; Edwardian mansion blocks; almost no post-war housing stock. Internationally wealthy residents; extensive listed building coverage; heritage and streetscape prioritised in every decision. That mix decides the drawing package route in Kensington and Chelsea more than the postcode does. Our fixed fee for architectural drawings in Kensington and Chelsea starts at £840, against £1,750 for the Complete package that carries a Kensington and Chelsea scheme through RBKC Planning planning and building regulations together.

What happens if a Kensington and Chelsea property sits on a boundary?

Sources for this Kensington and Chelsea drawing package page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.

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Neighbourhoods we cover in Kensington and Chelsea

9 Kensington and Chelsea neighbourhoods

We've delivered architectural drawings across every part of Kensington and Chelsea. Each neighbourhood has its own conservation context and dominant housing stock — click through for area-specific guidance.

Further reading

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