We are pleased to be undertaking a single-storey rear extension and full refurbishment of the existing ground floor, transforming the property into a modern, functional and spacious family home.
The project was introduced to Chelsea Contractors Ltd through our architectural partner, MJA Architecture Ltd, and involves extending the existing living space alongside comprehensive internal refurbishment works to enhance the property’s layout, functionality and overall finish.
We are pleased to be undertaking a second-floor rear extension in Chelsea, SW3, creating additional living space within this prestigious London property.
The project was secured through our direct outreach to local planning applicants.
Given the immaculate condition of the existing property, particular care has been taken to protect the interior throughout construction. A specialist scaffolding up-and-over access system has been installed, allowing materials, operatives and waste to be transported directly to and from the rear of the property, minimising disruption and eliminating the need to carry construction materials through the house.
Chelsea Contractors Ltd has been appointed to deliver the refurbishment of a 160m² apartment in Mayfair, London.
The project includes the construction of new insulated wall and floor structures, complete first-fix electrical and plumbing installations, a new heating system, Daikin air conditioning, MVHR ventilation, bespoke joinery, plastering, decoration, and the installation of a high-spec client-supplied kitchen, flooring, doors, and sanitaryware.
Works are expected to take approximately 6–8 months, with close coordination alongside the design team to deliver a premium finish that reflects the standards expected in one of London’s most prestigious residential locations.
We look forward to sharing progress as the project moves forward.
The Property Care Calculator allows homeowners and landlords to organise property maintenance quickly and efficiently. Simply enter your property details, compare available plans and activate cover online.
| Service | Essential | Total | Complete |
|---|---|---|---|
| Preventative Maintenance | ✔ | ✔ | ✔ |
| Compliance & Safety | ✔ | ✔ | ✔ |
| Reactive Maintenance | — | ✔ | ✔ |
| Monthly Support Visits | — | — | ✔ |
If you’re planning a refurbishment, extension or loft conversion, we can design and install a fully integrated MVHR system tailored to your home, layout and build programme.
Our new Project Price Calculator for London refurbishments, extensions & loft conversions
We’ve launched a new way to price and plan building projects. Get a clear project estimate instantly — then book a Project Scope Review to refine costs, assess feasibility, and plan next steps.
Clear price. Clear rules. Clear commitment.
No negotiations, no “we’ll confirm later” — the calculator sets the commercial baseline from day one.
Use our calculator to explore how your project could be priced — start with simple inputs and get a clear estimate.
Most homeowners want one thing early: a realistic number they can trust. This calculator applies the same pricing logic we use internally, so the first number you see is grounded in how projects actually run on site.
Built on real data.
Before launching, we tested the calculator against our completed London projects to check £/m², margins and performance over time.
This summary shows the real projects we analysed — the same projects that informed how the calculator models cost and pricing.
Historic profit margins from past London projects — showing the pricing discipline behind our approach.
As projects became more complex, pricing matured too — this view helped shape the calculator’s logic.
Key insight: Pricing upfront based on real work means clearer expectations and fewer surprises on site.
Once you’ve built your quote, you can book instantly. The calculator price becomes the commercial baseline — no renegotiation stage and no waiting for revised estimates.
Project Scope Review
Book a professional site consultation to assess feasibility, refine costs, and plan next steps. The fee is deducted from your project if you proceed.
If you’re planning a refurbishment, extension, loft conversion — or a combination —
you can now build your quote online and book instantly.
Start date: March 2025
Completion Date: August 2025
Kitchen & Bathroom Refurb in SE23
Completion Date: March 2024
