House extension services in Hampstead

House Extension Services in Hampstead

Professional House Extension Solutions for Hampstead Residents

Free Site Visit
Fast Turnaround
Local Hampstead Expertise
High Planning Approval Rate

Professional House Extensions in Hampstead

Transform your Hampstead home with our professional house extension services. Our qualified architects combine local knowledge with innovative design to create extensions that perfectly complement your existing property while maximizing space and value. Whether you're planning a rear extension, side extension, or loft conversion, our Hampstead team delivers exceptional results that exceed expectations.

House extension project near Hampstead

A recent extension project in the Camden area

Local Expertise

Having worked extensively in Hampstead and the surrounding Enfield area, our architects possess deep understanding of local planning requirements, building regulations, and architectural styles. This local knowledge enables us to provide accurate advice, realistic timelines, and cost-effective solutions tailored specifically for Hampstead projects. We stay current with evolving planning policies and building regulations, ensuring your project meets all current requirements.

Planning & Regulations

Understanding Hampstead's planning policies and building regulations is crucial for successful project delivery. Our team has extensive experience working with Enfield Council and building control departments, ensuring your project meets all regulatory requirements. We stay current with changes to planning policy and building regulations affecting Hampstead, including updates to permitted development rights, conservation area guidelines, and sustainability requirements.

Property Types We Work With in Hampstead

Hampstead has a diverse housing stock and we have experience extending all property types in the area. Our architects adapt designs to suit the character and structure of each home, whether that means matching original brickwork on a period property or creating a contemporary contrast on a more modern home.

Victorian terraces
Edwardian semis
post-war council houses
1930s semis
modern townhouses
period conversions

Free Quote for Hampstead

Tell us about your project and get expert advice within 24 hours.

Get a Free QuoteCall 020 3051 9430

Mon–Fri: 9am–5pm

Free site visit & consultation

No obligation quote

Covering NW3 & surrounding postcodes

House Extension Costs in Hampstead (2026)

Guide prices for house extensions in the Camden area. Every project is different — we provide a detailed, itemised quote after a free site visit.

Extension TypeTypical Cost
Single Storey Rear Extension£35k – £70k
Double Storey Extension£55k – £120k
Side Return Extension£25k – £50k
Wrap-Around Extension£60k – £130k
Loft Conversion (Dormer)£40k – £65k
Kitchen Extension£30k – £60k
Basement Conversion£80k – £200k
Garage Conversion£15k – £30k

Prices are guide figures for 2026 based on projects in the Greater London area. PD = Permitted Development (no formal planning application needed in most cases). Actual costs depend on specification, site conditions, and scope.

Our Extension Services in Hampstead

How Your Hampstead Extension Project Works

From the first phone call to moving into your new space — here is what to expect at every stage.

Step 1

Free Consultation

We visit your Hampstead property, discuss your vision, assess feasibility, and give you honest guidance on costs and planning routes.

Step 2

Design & Drawings

Our architects create detailed plans, 3D visuals, and construction drawings tailored to your Hampstead home and how you want to live in it.

Step 3

Planning & Approvals

We prepare and submit your planning application, liaise with the local authority covering Hampstead, and handle building regulations documentation.

Step 4

Construction

Our vetted builders bring the design to life. We oversee the build, conduct regular site visits, and manage quality at every stage.

Step 5

Completion & Sign-Off

Final inspections, building control sign-off, snagging checks, and handover — your new Hampstead space is ready to enjoy.

House Extension Services

Specializing in residential extensions across Hampstead, we provide tailored design solutions for every type of project. Our services include architectural design, planning applications, building regulations compliance, and construction drawings. We work closely with homeowners to create extensions that enhance their living space while maintaining the character and value of their property.

Planning Permission

Planning permission applications in Hampstead require careful preparation and local knowledge. Our team has successfully submitted numerous planning applications across the Enfield area, achieving high approval rates through thorough preparation and understanding of local planning policies. We handle all aspects of the planning process, from initial feasibility studies to final approval.

Completed house extension in Hampstead area

Extension completed in the Camden area

Building Control

For Hampstead projects, we provide ongoing support throughout the construction process, including site inspections, compliance monitoring, and liaison with building control officers. Our drawings are produced to building control standards, ensuring clear communication of construction details and compliance requirements. Our goal is to ensure your project meets all building regulations while maintaining design quality.

Why Choose Us in Hampstead

Our Hampstead clients benefit from our extensive local knowledge, established relationships with planning authorities and contractors, and commitment to delivering exceptional results. We take pride in our ability to transform client visions into reality while respecting local character and meeting regulatory requirements. We offer competitive rates, transparent pricing, and flexible service packages tailored to your specific needs.

Frequently Asked Questions About House Extensions in Hampstead

How much does a house extension cost in Hampstead?+
House extension costs in Hampstead vary by type and size. Single storey rear extensions typically range from £35k – £70k, double storey extensions from £55k – £120k, and loft conversions from £40k – £65k. These are guide prices for 2026 — we provide an accurate, itemised quote after a free site visit to your Hampstead property.
Do I need planning permission for a house extension in Hampstead?+
Many extensions in Hampstead can be built under permitted development rights without a formal planning application. This typically covers single storey rear extensions up to certain size limits. However, if your property is in a conservation area, is a listed building, or if the extension exceeds permitted development limits, a full planning application is needed. During our free consultation we assess your Hampstead property and advise on the best route — and handle the entire application if needed.
What types of house extensions can you build in Hampstead?+
We design and build all types of extensions in Hampstead: single storey rear extensions, double storey extensions, side return extensions, wrap-around extensions, loft conversions (dormer, hip-to-gable, mansard), garage conversions, basement conversions, and kitchen extensions. Hampstead has a mix of Victorian terraces, Edwardian semis, post-war council houses — we tailor every design to the specific property type.
How long does a house extension take in Hampstead?+
Timelines vary by project: a single storey extension typically takes 3–4 months on site, a double storey 5–7 months, and a loft conversion 6–8 weeks. Before construction, the design and planning stage usually takes 8–12 weeks. We map out a detailed programme during your free consultation so you know exactly what to expect.
Do you handle planning applications with Hampstead council?+
Yes — we have extensive experience submitting planning applications to the local authority covering Hampstead. We prepare all drawings, design & access statements, and supporting documents, then manage communication with planning officers through to decision. Our knowledge of local policies helps avoid unnecessary delays or objections.
What areas near Hampstead do you cover?+
We cover Hampstead and all surrounding areas within a 20-mile radius. This means we can handle projects across the wider Camden area, with the same level of local knowledge and expertise you'd get from a firm based in Hampstead itself.

Ready to Start Your Hampstead Extension?

Don't delay your Hampstead extension project - get in touch today to discuss your requirements and receive expert advice on the best approach for your house extension. Our team is ready to help you bring your vision to life with professional design solutions and local expertise. We provide comprehensive support from initial concept through to project completion.

Nearby Areas We Also Cover