Wembley is a place of contrasts: interwar semis in Sudbury, Preston Road and Barn Hill, Victorian terraces near Harlesden and Kilburn borders, and modern high-rise flats around Wembley Park and the stadium. Most house owners here are looking to add space to a well-built 1930s home.
Builders in Wembley Delivering Reliable, High-Quality Work

Building Services from Wembley Builders
Every service below is delivered by our own in-house tradespeople, fixed-price and fully insured, so you get dependable builders in Wembley from survey to handover.
Loft Conversions in Wembley
Transform your home with expert loft conversions in London by Alpha London Builders. From design and planning to construction, we deliver quality loft conversions tailored to your needs.
Learn more →House Extensions in Wembley
Rear, side return, wraparound and double storey extensions designed and built to fit seamlessly with your London home.
Learn more →Basement Conversions in Wembley
Cellar conversions, basement lowering and full new excavations, engineered and waterproofed to BS 8102 by our in-house team.
Learn more →Garage Conversions in Wembley
Integral, attached and detached garage conversions into bedrooms, offices and annexes, most without planning permission.
Learn more →Property Refurbishment in Wembley
Cosmetic updates through to full structural refurbishments, managed under one dedicated site manager from start to finish.
Learn more →General Building in Wembley
Repointing, roof repairs, damp treatment, brickwork and small structural alterations, carried out by our own trades.
Learn more →Design & Build in Wembley
One team, one contract, one fixed price for design, planning, structural engineering and construction on your project.
Learn more →New Builds in Wembley
New homes and replacement dwellings built from foundation to final finish, with zero-rated VAT on construction costs.
Learn more →Commercial Building in Wembley
Office, retail and restaurant fit-outs across London, delivered around your trading hours with minimal disruption.
Learn more →Residential Building in Wembley
The full range of residential building work, from a single repair to a new build, delivered by one London contractor.
Learn more →Building Demolition in Wembley
Safe, fully licensed demolition work across London, from internal wall removal to complete house demolition ahead of a new build.
Learn more →Why Choose Our Wembley Builders
Interwar semi experience
Sudbury, Preston Road and Barn Hill are full of 1930s houses, and we know how to extend them without spoiling the street.
Conservation-area checks
Sudbury Court Estate and Barn Hill have extra controls, and we check them before drawings are started.
Garage conversions done to regs
Insulation, ventilation and fire safety are built in, plus the planning condition check many people forget.
Brent council knowledge
Wembley is in the London Borough of Brent, so we work to its policies rather than assuming another council's rules.
Building & Planning Considerations in Wembley
Wembley falls within the London Borough of Brent, which has a number of conservation areas including Sudbury Court Estate and Barn Hill. In those areas permitted development rights are more limited and some external changes need planning permission. Outside them, interwar semis and detached houses keep standard rights for rear extensions and rear dormers. Flats, including the many new blocks around Wembley Park, have no permitted development rights, and leaseholders need freeholder consent.
As Wembley builders, every quote we provide for a Wembley property starts with a check against Brent Council's conservation area maps and Article 4 register, so you know exactly which route your project needs before any design work begins.
Building in Wembley: what to know before you start
Interwar semis and new towers
Sudbury, Preston and Barn Hill are made up of 1930s semis and detached houses with garages and decent gardens. Alperton and Tokyngton have Victorian and Edwardian terraces and mid-century estates. Wembley Park is almost entirely new, high-density flats. Which of these you live in decides what is possible far more than the postcode does.
Matching work to home type
Interwar semis suit a loft conversion in Wembley with a hip-to-gable and rear dormer, and a rear or wraparound extension. Many have side garages, which make garage conversions an inexpensive way to add a room. Older terraces and tired houses suit full refurbishment.
Checks worth making
Find out whether you are in Sudbury Court Estate, Barn Hill or another conservation area. If you plan a garage conversion, check planning conditions. Party wall notices apply to semis. If you own a flat, read your lease. We go through all of this at the free survey.
What we do in Wembley: Loft conversions in Wembley · House extensions in Wembley · Basement conversions in Wembley · Garage conversions in Wembley · Property refurbishment in Wembley
Worth reading first: Do you need planning permission for a loft conversion? · Building Regulations vs planning permission
Nearby: Builders in Harrow · Builders in Barnet
Ready to talk? Book a free site survey and we will tell you in writing which planning route your address needs.
Areas We Cover in Wembley
Don't see your street listed? Our builders in Wembley cover the whole borough and the surrounding area — get in touch to check.
Recent Wembley Projects
A look at recent work carried out for clients in and around Wembley.

Rear Extension — Open-Plan Kitchen & Living Space
A single-storey rear extension that opened up a cramped, closed-off floor plan into one bright, open-plan kitchen and living space.
View Project →
Full Flat Refurbishment
A complete top-to-bottom refurbishment of a London flat — new kitchen, new bathroom, rewired, replastered and redecorated throughout.
View Project →Reviews from Wembley
“We had our kitchen and bathroom done at the same time and expected chaos. Instead we got one site manager, one clear schedule, and a fixed price that didn’t move once.
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FAQs About Builders in Wembley
Which council handles planning in Wembley?
The London Borough of Brent. Wembley is a district within Brent, not a separate borough, so applications go to Brent Council and its local policies apply.
Can I do a hip-to-gable loft on a Sudbury semi?
Usually, if the house is outside a conservation area and the added volume stays within 50 cubic metres. Sudbury Court Estate is a conservation area, so check your road. Building Regulations approval is required either way.
Do I need planning permission to convert my garage in Wembley?
Often not, because it is normally an internal change, but check the original planning conditions, which sometimes require parking to stay. Building Regulations approval is needed for insulation, ventilation and fire safety.
Can I extend a flat in one of the new Wembley Park blocks?
Almost certainly not by yourself. Flats have no permitted development rights, and leases normally forbid structural or external changes without freeholder consent. Internal refurbishment is more realistic, and we can discuss what your lease allows.
Get a Free Quote from Our Wembley Builders
Free site survey, a fixed-price quote within 48 hours, and one team from first fix to final handover.
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