Residential House Extensions
Add space to your existing home and increase its value with a high-quality extension. Find out why we’re the house extension contractors of choice across North London and the Home Counties.

Home Extensions
Upgrade Your Home With a Bespoke House Extension
If you need more room but don’t want to leave your existing home, a home extension gives you the space you need without the stress of moving house.
We specialise in residential house extensions at Sanper Residential. Our experienced team of project managers and tradespeople will expertly manage your house extension, from arranging planning permission to installing fixtures and fittings.
Whether you want to build out into your back garden or convert your loft or basement into usable living space, we can turn your idea into reality.

House Extension Contractors
High Quality Residential House Extensions Expertly Managed
- Full Project Management
- All Trades
- Design and Planning through to Handover
Planning a house extension can be stressful. You need to bring in the right tradespeople at the right part of the work, handle any planning permissions, and ensure the entire project runs on time and to budget.
At Sanper Residential, we provide a turnkey service. This means we handle the entire process from beginning to end on your behalf. We deal with the paperwork, manage the staff, and arrange for products to be delivered directly to your door.
With clear communication at every step, we handle the hard work so you don’t have to.
A Complete Turnkey Service
Minimal Disruption
Clear Communication Throughout
Full Compliance With Regulations

Residential Extensions
Exceptional Customer Service, Exceptional Results<
Standard renovations, extensions, and new builds aren’t for us. At Sanper Construction, we’re committed to bespoke projects with a personal touch.
Most people spend three-quarters of the day at home, so it’s vital to live, eat, and sleep somewhere tailored to your exact needs, style, and comfort requirements.
As part of the Sanper Group, we’re transforming how the residential construction sector works by delivering outstanding quality services, combined with exceptional levels of operational and customer support.

5 Easy Steps
5 Simple Steps to Your Dream Home
Thanks to our time-proven process, our skilled team can complete your project quickly and efficiently. This means less stress and allows you to enjoy your beautiful new home sooner.
01
Feasibility
Study
01 Feasibility Study
Following a chat to discuss your needs, we carry out a feasibility study. This allows us to see if what you want is structurally and financially viable, as well as to accurately price your project and determine timescales.
02
Planning &
Approvals
02 Planning & Approvals
If planning permission, listed building consent, or buildings regulations approval is needed, we advise what steps need to be taken to ensure a successful build. We can also handle the permissions paperwork if needed.
03
Contract &
Regulations
03
Contract &
Regulations
We create a thorough contract so you know what work will be involved, what our responsibilities are, and how long the work will take. We also manage all the building regulations work, including Thames Water requirements.
04
The Work
Begins
04 The Work Begins
Our skilled, time-served, and qualified construction team start work on your project, ensuring quality and attention to detail throughout. Your project manager will keep you updated every step of the way.
05
Handover &
Completion
05 Handover & Completion
Once the work is completed to an exceptional finish, we walk you through what we’ve done and provide all relevant manuals, certificates, and documentation. All that’s left to do is to enjoy your wonderful new space!

Residential Contractors
Serving north london and the home counties
We provide residential building services across the whole of North London, as well as Hertfordshire, Bedfordshire, and Buckinghamshire.
Whether you live in a terraced house in the heart of London and want to increase your square footage, or you’ve purchased a plot in the Home Counties, we’re here to help.
With extensive coverage across London and the South East, excellent customer service, and a fresh approach to construction, it’s easy to see why we’re your residential contractor of choice.
projects on time to an excellent standard
Leverstock Green
Boxmoor
Boxmoor
frequently asked questions
Got any questions about our home extension services? You’ll find the answer here. If you have any other queries, please get in touch, we’d be happy to help.
Which locations do you cover for residential extensions?
We cover North London, Hertfordshire, Bedfordshire, and Buckinghamshire.
Do you offer a warranty on your home extensions?
Yes, we provide a one-year warranty on all works for your peace of mind.
Do you offer a full turnkey solution?
Yes, we handle all aspects of the work as a house extension contractor, supplying and managing all trades and handling all paperwork.
Are you able to assist with planning permissions for our project?
Yes, we offer this as an additional package. Our expert team can create a bill of quantities, plans, and structural calculations that can be used for planning purposes.