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Builder in a hard hat examines a floor plan at a brick house construction site.

House extension builders in London for practical extra space

Rear, side and multi-storey options. Scope, costs and sequencing planned early. Started in 2022.

Add space without ignoring the awkward bits

Layouts shaped by real plots

Choose a layout that suits the plot, the structure and the way you live.

Old and new join properly

Plan utilities, drainage and structural openings before they become snags.

Sequencing kept under control

Keep materials, trades and finish stages moving in the right order.

Extra space planned around the property you have

When the house feels short on space, moving is not the only answer. We build house extensions that add room for kitchens, dining, work or family life while linking properly with the existing property. Rear, side, wraparound and multi-storey options each suit different plots and structural setups, so the right choice starts with the space you need and what the site can take. With Suddeco Limited, the early work covers drawings, site conditions, quantities and likely costs, so the extension is planned as a real build, not just a hopeful sketch.

a single-story house extension under construction with red brick exterior walls and timber window frames
Builder in a hard hat examines a floor plan at a brick house construction site.

The awkward details sorted before they bite

The awkward bits are usually the ones that matter most: access, drainage, utilities, structural openings and how old and new areas meet without looking like strangers. We organise the scope, materials and programme around those practical points, then coordinate the work packages through delivery. Choosing Suddeco Limited means your extension planning stays connected to project management as well as the hands-on build, which helps keep structural work, services and finishes moving in the right order.

Frequently asked questions

What type of extension might suit our property?

That depends on the plot, the space you need, the existing structure and how the new area needs to connect to the house. Rear, side, wraparound and larger multi-storey options all solve different problems, so the right answer comes from the property rather than fashion.

Can we stay in the house during extension work?

Many people do, but it depends on the scale of structural work, the services affected and how the old and new spaces connect during construction. Early planning for access, protection and sequencing makes it much easier to judge what living arrangements are sensible.

What should we send at the enquiry stage?

Drawings are the best start if you have them. It also helps to know the address, what extra space you want, any known access issues and anything awkward such as drainage runs or utility positions. That gives the planning and costing discussion something solid to work from.

Builder in a hard hat examines a floor plan at a brick house construction site.

Discuss your extension plans properly

Call us to discuss your plans, plot constraints and the extra space you need before extension details start piling up.

Contact us

Suddeco Limited

662 High Rd, London N12 0NL, UK

Business hours

We have no opening hours.

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SUDDECO LIMITED, registered as a limited company in England and Wales under company number: 14354951.
Registered Company Address: 662 High Road, London, England, N12 0NL.

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