House extension services in Custom House

House Extension Services in Custom House

Professional House Extension Solutions for Custom House Residents

Free Site Visit
Fast Turnaround
Local Custom House Expertise
High Planning Approval Rate

Professional House Extensions in Custom House

Planning a house extension in Custom House? Our expert architectural team specializes in creating beautiful, functional extensions that enhance your home's value and living space. Located within the Enfield catchment area, Custom House offers excellent opportunities for residential development, and our local expertise ensures your project benefits from professional design solutions tailored to the area's unique characteristics.

House extension project near Custom House

A recent extension project in the Newham area

Local Expertise

Having worked extensively in Custom House 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 Custom House projects. We stay current with evolving planning policies and building regulations, ensuring your project meets all current requirements.

Planning & Regulations

Navigating planning requirements in Custom House requires local expertise and up-to-date knowledge of Enfield Council's policies. Our architects understand the specific requirements for extensions in the area and can guide you through the planning application process, ensuring your proposal has the best chance of approval. We provide advice on design considerations, sustainability requirements, and community consultation processes.

Property Types We Work With in Custom House

Custom House 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 Custom House

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 E16 & surrounding postcodes

House Extension Costs in Custom House (2026)

Guide prices for house extensions in the Newham 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 Custom House

How Your Custom House 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 Custom House 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 Custom House 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 Custom House, 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 Custom House space is ready to enjoy.

House Extension Services

Specializing in residential extensions across Custom House, 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 Custom House 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 Custom House area

Extension completed in the Newham area

Building Control

Our Custom House building control services include detailed construction drawings, structural calculations, fire safety assessments, and accessibility compliance reviews. We understand the specific building control requirements for extensions in the Enfield area and can advise on structural solutions, thermal performance standards, and sustainability requirements.

Why Choose Us in Custom House

Our Custom House 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 Custom House

How much does a house extension cost in Custom House?+
House extension costs in Custom House 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 Custom House property.
Do I need planning permission for a house extension in Custom House?+
Many extensions in Custom House 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 Custom House property and advise on the best route — and handle the entire application if needed.
What types of house extensions can you build in Custom House?+
We design and build all types of extensions in Custom House: 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. Custom House 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 Custom House?+
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 Custom House council?+
Yes — we have extensive experience submitting planning applications to the local authority covering Custom House. 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 Custom House do you cover?+
We cover Custom House and all surrounding areas within a 20-mile radius. This means we can handle projects across the wider Newham area, with the same level of local knowledge and expertise you'd get from a firm based in Custom House itself.

Ready to Start Your Custom House Extension?

Transform your Custom House home with our professional extension services. Contact us today for a free consultation and discover how we can help you create the perfect extension for your property. Our experienced team combines local knowledge with innovative design to deliver exceptional results that enhance your home's value and living space.

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