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Construction Services in Kensington & Chelsea

ChelseaNotting HillSouth KensingtonKnightsbridgeHolland ParkNorth Kensington

Construction Services in Kensington & Chelsea

The Royal Borough of Kensington and Chelsea sets the standard for London's most demanding and prestigious construction work. From the white stucco crescents of Notting Hill and Holland Park to the red-brick mansion blocks of South Kensington and the grand terraces of Cheyne Walk, RBKC's housing stock represents the pinnacle of London's architectural heritage. Every project here demands exceptional craftsmanship, meticulous planning, and total command of one of London's most complex planning environments.

Our RBKC portfolio spans the full spectrum of premium construction: basement conversions beneath Chelsea's Victorian terraces, full townhouse refurbishments in Notting Hill, apartment renovations in South Kensington's Edwardian mansion blocks, and sensitive conservation area extensions in Chelsea's quieter residential streets. We understand what RBKC's conservation officers expect, how the borough's basement policy works in practice, and how to deliver projects of the highest quality in this most demanding of environments.

Kensington & Chelsea Housing Stock

White stucco Georgian and Victorian townhouses and terraces, red-brick Edwardian mansion blocks, mews houses, lateral apartments in converted period buildings. Very high proportion of listed buildings and conservation area properties.

Planning in Kensington & Chelsea

RBKC (Royal Borough of Kensington and Chelsea) is one of London's two most demanding planning authorities alongside Westminster. The entire borough effectively falls within conservation areas — RBKC has over 30 designated areas covering virtually all its residential neighbourhoods. A very high proportion of properties are listed at Grade I, Grade II*, or Grade II.

RBKC's basement policy is stringent: the borough limits new-dig basements and typically permits only single-storey extensions, requiring extensive structural, hydrological, and arboricultural surveys. The policy reflects concerns about cumulative basement development affecting ground conditions and tree root systems. Permitted development rights are removed across most of the borough by Article 4 Directions. All applications must demonstrate high design quality, and the borough's Design Review Panel reviews significant proposals. Pre-application advice from RBKC's planning and heritage officers is strongly recommended — the borough offers a pre-application service that, while charged, consistently delivers better outcomes than applications submitted without prior engagement.

Recent Projects in Kensington & Chelsea

Chelsea Townhouse Basement & Renovation

£1,200,000
Basement + Full RenovationChelsea, SW3

New basement level plus full five-storey townhouse renovation — bespoke kitchen, five bathrooms, cinema room, plant room. Full RBKC basement policy compliance.

Notting Hill Terrace Full Refurbishment

£650,000
Full RenovationNotting Hill, W11

Complete refurbishment of a four-storey Grade II listed stucco terrace — restored original cornicing and joinery, four new bathrooms, new kitchen, full M&E replacement.

South Kensington Apartment Renovation

£180,000
Full RenovationSouth Kensington, SW7

High-specification renovation of a three-bedroom lateral apartment — new kitchen, two bathrooms, bespoke joinery throughout, underfloor heating.

FAQs — Construction in Kensington & Chelsea

How does RBKC's basement development policy work?
RBKC limits basement development to a single storey beneath the existing building footprint in most cases. Applications require a Structural Method Statement, a Ground Investigation Report, a Drainage Assessment, and an Arboricultural Impact Assessment for properties with significant trees. The Council employs an independent structural engineer to review these reports and may require construction methodology to be approved before works begin.
Do all RBKC properties require planning permission for extensions?
Almost all. RBKC applies Article 4 Directions across most residential areas, removing standard permitted development rights. Single-storey rear extensions, loft conversions, and most external alterations require full planning permission. The borough's conservation officers assess all proposals against both national heritage guidance and RBKC's detailed Supplementary Planning Documents covering residential extensions.
What is RBKC's approach to design quality?
RBKC has some of the most detailed residential design guidance in London. The borough's Supplementary Planning Documents cover materials, fenestration design, boundary treatments, and roof alterations in considerable depth. Conservation area appraisals provide specific guidance on what is appropriate in each area. Our design team works with architects experienced in RBKC submissions to ensure proposals meet the borough's high design standards.
What types of construction projects are most common in RBKC?
Basement conversions and lateral basement extensions are the most sought-after projects given the premium on space and the restrictions on extending above ground. Full townhouse refurbishments — typically replacing all mechanical and electrical systems, installing multiple bespoke bathrooms and kitchens — are the second most common. Loft conversions and rear extensions, where planning allows, are the third category.
How long does an RBKC planning application take?
RBKC processes standard applications within 8 weeks, but complex heritage or basement applications often require extensions of time. Heritage and listed building consent applications run concurrently and take similar timescales. We strongly recommend pre-application engagement — RBKC's pre-app service typically takes 6–8 weeks to respond but substantially improves certainty and reduces the risk of refusal.

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