
Luxury Bathroom Fitters in Chelsea
Chelsea's Georgian townhouses, red-brick Victorian mansion blocks, and white-stucco mews properties represent some of London's most coveted — and most technically demanding — residential architecture. We design and install bathrooms and wet rooms that match the standard of the homes they occupy, with complete project management and a single point of accountability from brief to handover.
Chelsea's Residential Character — Precision Craft in London's Most Exacting Postcode
Chelsea contains some of the most architecturally significant and technically demanding residential properties in London. The Hans Town Conservation Area — covering the grid of streets between Sloane Street, Fulham Road, and Draycott Avenue — is a dense concentration of late-Georgian and early-Victorian stucco-fronted townhouses and purpose-built mansion blocks of exceptional quality.
These properties present a layered set of challenges: many are held on long leases with management companies requiring detailed pre-works applications. Furthermore, the basement excavations carried out over the past two decades in this area have in some cases altered the structural dynamics of ground and lower-ground floors. The expectation of finish in a Chelsea townhouse is simply higher than almost anywhere else in London. Surface materials must be specified with the proportions of the room in mind — a 600×1200mm porcelain tile format that would look generous in a Balham terrace may be inadequate in a Hans Town bathroom with a three-metre ceiling height and an original marble fireplace surround.
The mews properties that thread through Chelsea’s residential blocks — in streets such as Lennox Gardens Mews, Cale Street, and the lanes off the Fulham Road — represent a distinct and equally demanding residential typology. Originally built as stable and coach-house accommodation, these two and three-storey properties have been extensively converted over the past half-century into high-value homes. They frequently feature multiple levels connected by tight staircases that complicate materials delivery and create genuine logistical challenges for any renovation.
Their water supply and drainage arrangements are often idiosyncratic — the result of successive conversion phases carried out to varying standards — and require a thorough pre-works investigation before any specification can be produced with confidence. KBB Master has an established track record in both the Hans Town estate and the surrounding mews network, bringing the same forensic pre-works rigour to every Chelsea commission. Our teams also work regularly in neighbouring Battersea and Fulham, where the period mansion block and converted mews stock presents structurally comparable installation challenges.
Luxury Bathroom Renovations in Chelsea
London — Est. 2011
Chelsea commissions typically range between £12,000 and £25,000+, depending on the architectural scope, the complexity of the existing services configuration, and the material specification selected. At this level of property, we begin every project with a comprehensive paid design consultation — producing a precise structural assessment, a fully resolved 3D design, and a detailed itemised programme cost — so that every decision is made with complete information before any commitment to proceed.
Our Bespoke Services in Chelsea
- 01
Luxury Wet Room Design & Installation
A wet room in a Chelsea Georgian townhouse or mansion block apartment must be engineered to a standard commensurate with its surroundings. We assess structural loading, map existing drainage configurations, and specify a fully continuous Schlüter-Kerdi bonded waterproofing envelope across floor and wall planes — with proprietary drain-to-membrane integration at every junction. Surface materials are selected from premium natural stone suppliers — honed Carrara, Calacatta, Pietra Serena, and Portuguese limestone among our most frequently specified — in formats calibrated to the scale and proportions of the individual room.
Learn more - 02
Bespoke Bathroom Design
Chelsea properties demand a design process that begins with the architecture, not the fittings catalogue. We survey each space to millimetre accuracy, build a precise three-dimensional model incorporating ceiling heights, window proportions, original cornicing profiles, and any architectural constraints specific to the room, and develop a design that is resolved in every detail before a single element is specified. Sanitaryware, brassware, lighting, cabinetry, and surface materials are selected as a coordinated whole — not assembled from separate choices made at different stages.
Learn more - 02
Full-Service Project Management
Managing a bathroom renovation in Chelsea involves a level of co-ordination — with building management companies, RBKC's planning and building control teams, party wall surveyors, and the specific access and working-hours requirements of each building — that requires experience, documentation, and genuine accountability. We handle every element of this process: pre-works consents, trade programming, materials delivery logistics, dust and noise management, and a comprehensive post-completion snagging review. Our clients in Chelsea have one contact, one contract, and one team throughout.
Learn more
recent projects

View Project 
View Project 
View Project
Client Reviews
Artur and his team at KBB Master Builder Ltd did an excellent work for our bathroom refurbishment and fitting. Very happy with their service, professional work throughout and finished the project on time.
KBB Master Builders have recently refurbished our bathroom and we have no hesitation in recommending them. They did a thoroughly professional job, from the complete removal of the old bathroom to the fitting of the new one.
Artur and his team were first class in every way with a tricky total gutting and creation of new middle bathroom/wet room in our family home. Very responsive by WhatsApp and work on site considerate and five star quality. 100% did what they promised; we're delighted
Frequently Asked Questions
Q: My Chelsea property is in a listed building. What consent is required for a bathroom renovation?
A: Works to a listed building that affect its character — including alterations to original fabric, removal of historic features, or changes to plan configuration — require listed building consent from the Royal Borough of Kensington and Chelsea. Not all bathroom renovations trigger this requirement, but in Chelsea’s listed stock, the threshold is lower than in unlisted properties. We assess the consent position at consultation, advise on what is and is not notifiable, and prepare the application documentation where required.
Q: My Chelsea mansion block has a management company with strict rules. How do you handle the renovation process?
A: Chelsea’s major mansion blocks — in Sloane Avenue, Draycott Avenue, Lennox Gardens, and elsewhere — are managed by some of London’s most rigorous residential management companies. We are experienced in preparing the documentation they require: drawings, specifications, method statements, contractor insurance certificates, and working-hours compliance undertakings. We submit these in advance of works commencing and maintain the relationship with the management company throughout the programme.
Q: The basement of my Chelsea townhouse has been excavated as part of a previous renovation. Does that affect a bathroom installation?
A: Basement excavations in Chelsea townhouses can alter the structural dynamics of ground-floor slabs and affect the drainage infrastructure beneath them. We assess the current structural condition of the floor and any relevant drainage runs at the consultation stage, and we specify the substrate and waterproofing systems appropriate to what we find — rather than assuming standard conditions.
Q: Can you source and install natural stone in a Chelsea bathroom to the standard the property demands?
A: Yes. We specify and procure natural stone directly from premium suppliers, selecting slabs in person where the material quality and veining pattern are critical to the design. We work with honed and polished Carrara, Calacatta, Statuario, Pietra Serena, Portuguese limestone, and a range of other premium stones, and we install them using adhesive systems and jointing products appropriate to each material’s thermal and moisture movement characteristics.
Q: What is the typical investment and timeline for a full bathroom renovation in a Chelsea property?
A: At the quality level Chelsea properties demand, a full bathroom or wet room renovation — including all structural preparation, waterproofing, natural stone tiling, bespoke joinery, and premium sanitaryware and brassware installation — typically represents an investment of £18,000 to £30,000+, with a programme of five to eight weeks on site depending on scope. We provide a fully itemised cost and a detailed programme at the design stage, before any commitment is made to proceed.