Commercial and investment extensions
Rear and side extensions for shops, cafés and offices, and rear, mansard and roof extensions that add rooms or new flats to investment properties. Built to your approved drawings by one London team.
★★★★★ 30 Google reviewsFully insuredWork planned around your business
Client reviews
Our clients mention the same things again and again: clear communication, a tidy site, attention to detail and a finish they are proud of.
“Elton and the team did works for our commercial premises, a double fronted shop. They were efficient, excellent workers and finished quickly. Highly recommend.”Aminah Mini B · Commercial premises · Google review
Commercial Extensions
In London, extending is often the quickest way to add space or rental income without moving. The value comes from getting the build right first time.
We build extensions for business owners, landlords, investors and developers across London. That might be a rear extension that gives a restaurant a bigger kitchen, a side return for a shop’s stockroom, or a mansard that adds a new flat on top of a terrace.
We build to the drawings your architect and engineer have had approved: groundworks, foundations, steels, walls, roofs, glazing and the fit out inside. Party wall matters and Building Control are planned in from the start.
Where the building is in use, the work is phased so trading or tenants carry on with as little disruption as possible. You receive a fixed, itemised price and a programme before we start.
What is included
Our own team handles every stage, so you have one point of contact and one fixed price.
Excavation, drainage and foundations to your engineer’s design.
Walls, openings, steels and roofs built and signed off by Building Control.
Extra floors built on top of terraces and blocks to add flats or space.
Roof lights, sliding doors and flat or pitched roofs that keep the weather out.
Electrics, plumbing, plastering, flooring and decoration, ready to trade or let.
Send us a few photos and the postcode. We will tell you honestly what the building needs.
Ask UsWho we work with
More sales floor or stockroom space at the back of the building.
Bigger kitchens and more covers, built around trading.
Extra rooms and meeting space without the cost of moving.
Extra bedrooms and bathrooms that increase rental income.
Mansards and roof extensions that add new flats to existing buildings.
Airspace developments that create value for the building.
The standard we deliver
Completed projects from across London, built by our own team. Our commercial clients get the same people, the same organisation and the same attention to detail.
Planned around you
Most commercial extensions are built while the business or tenants carry on next door. We plan the work so that is possible.
The noisiest stages planned around trading hours and tenants.
Hoarding, safe walkways and a clean site every day.
The programme planned around party wall agreements, with neighbours kept informed.
Skips, deliveries, parking and licences arranged for you.
Photos and progress updates at every main stage.
Why London’s Prestige
You should always know what is happening, who is responsible and what you are paying. That is how we run every commercial project.
The people who price your project are the people who build it. No middleman.
Inclusions, exclusions and responsibilities agreed before the programme is set.
One point of contact who keeps you updated and is always a phone call away.
Built to the drawings of your architect, designer or engineer, coordinated with building management.
Parking, deliveries, neighbours, licences and building rules arranged by us.
Straight lines, clean joints and every detail checked with you before handover.
Our process
Seven clear stages, from your first message to the final handover.
The postcode, property type, the work you have in mind and any plans or photos.
We check the details and confirm whether a site visit is the right next step.
We look at the space, access, condition and how the building needs to operate during the work.
An itemised price with the scope, responsibilities and programme made clear.
Materials ordered, trades booked and access, licences and building management arranged.
Our own team builds it in the agreed order, with regular updates at every stage.
We walk round with you, close out every point and hand over the certificates.
Send us a few photos, the postcode and what you have in mind on WhatsApp. We will tell you honestly what the project needs and how we would approach it.
Commercial services
Many commercial projects cover more than one kind of work. We run them as one project, with one programme, one price and one point of contact.
Commercial enquiries
Send us the postcode, the type of property and what you have in mind. Plans, photos or a specification help, but they are not essential. We will call you back, arrange a site visit and send you a fixed, itemised price in writing.
Prefer to talk now? 020 3576 7307
Areas we serve
We work on commercial and investment properties right across London, north, south, east and west. Send us the postcode and a short description of the work and we will be in touch.
London’s Prestige, 41A Mill Lane, London NW6 1NB · Get directions
FAQs
Can’t see your question? Call 020 3576 7307 or message us on WhatsApp.
We build to approved drawings. Planning applications are prepared by your architect, and we are happy to recommend architects we work with. Building Control and party wall matters are planned in from the start.
Often, yes. We phase the work, separate the site from the trading areas and plan noisy work around your opening hours.
Yes. We build mansard and roof extensions that add space or new flats, working to approved drawings and your engineer’s design.
It depends on the size, the structure and the access. We give you a realistic programme after the site visit and once the drawings are approved.
Party wall notices and agreements are handled by a party wall surveyor. We plan our programme around them and work closely with neighbours throughout.
Send us the postcode, the type of property, the work you have in mind and any plans or photos, using the form, by phone or on WhatsApp. We arrange a site visit and send you a fixed, itemised price in writing.
