House Extensions in Highgate
Highgate is one of North London's most prestigious addresses — large period houses, woodland and green space, excellent schools, and far-reaching views across London. Properties in N6 are substantial, renovation budgets are significant, and the quality of execution expected is high. rcbGroup delivers extensions, loft conversions, and full refurbishments across Highgate.
rcbGroup projectHouse Extensions in Highgate — what to expect
Highgate's large Victorian and Edwardian detached and semi-detached properties offer excellent extension potential. The plots are typically much larger than inner London equivalents, allowing rear extensions of 5-8m or more on suitable properties. Double-storey extensions, garden rooms, and wrap-around configurations are all viable. Conservation area controls cover much of Highgate Village — materials and design require careful attention to planning policy.
Highgate property types
Large Victorian and Edwardian detached and semi-detached houses, Georgian properties, period conversions. The property type affects which extension approach works best — we'll advise from the first call.
Common extension projects we deliver in Highgate
How we deliver extension projects in Highgate
Project review & site visit
We look at your Highgate property and any drawings you have, explain what's possible, the likely planning and Building Regulations route, and the risks — before you commit to anything. No obligation.
Design & planning support
We work alongside your architect or our preferred design partners to develop drawings that are buildable, compliant, and cost-effective. We flag planning and permitted development options early.
Itemised scope and price
You receive a detailed, itemised scope of works and an agreed price before we start, with exclusions and provisional sums shown. Variations are agreed in writing before any additional work begins.
Managed delivery
We coordinate trades, procurement and site logistics, with a single point of contact throughout — working to the requirements of London Borough of Haringey / London Borough of Camden and Building Control.
Sign-off & handover
We coordinate the Building Control inspections needed for sign-off, then hand over your project documents — completion certificate, guarantees and manuals as applicable — with snagging and aftercare as set out in your contract.
Planning in Highgate
Highgate Village Conservation Area is administered partly by Haringey and partly by Camden depending on the location of the property within N6. Both authorities take a rigorous approach to design in the conservation area. Pre-application advice is recommended for any external works. Many properties have trees subject to Tree Preservation Orders.
Why choose rcbGroup in Highgate?
Local context
We plan around London Borough of Haringey / London Borough of Camden's requirements and the typical property types in Highgate — large victorian and edwardian detached and semi-detached houses, georgian properties, period conversions.
Price agreed before start
Your price is agreed and documented before work starts. Scope, exclusions, and assumptions set out in writing.
One accountable team
Trades, suppliers and inspections coordinated by one team — with CDM Principal Contractor duties taken on where we are appointed to build.
Written project documentation
A written contract before work starts, a Construction Phase Plan where we are appointed to build, and the completion certificate and handover documents gathered for you at the end.
Independently reviewed
Rated 10/10 from 117+ reviews on Checkatrade, where you can read them for yourself.
Support from planning to aftercare
We don't just build — we can support design development, planning applications, and pre-construction cost planning.
Planning an extension in Highgate?
Pick whatever suits you. We'll look at what you have (drawings, photos or quotes) and tell you honestly what the next step should be.
Prefer to phone? Call +44 7359 872594.
Postcodes served: Highgate
Not sure if we cover your street? Get in touch — we'll confirm in minutes.
Start your Highgate project
Project review. Clear scope. Agreed price. One team from first call to Building Control sign-off.
Or call us on +44 7359 872594