FMB Registered · Fixed-Price Guarantee

House Extensions in Leeds

Add space and value to your home with a professionally built single or double-storey extension — from free planning advice to polished handover.

Get Free Site Survey 0113 456 7890

What's Included

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Single and double-storey options
Rear, side or wrap-around — we advise the best configuration for your plot and budget.
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Full planning & building regs support
We handle Permitted Development assessments and planning applications on your behalf.
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Kitchen extensions, orangeries & sunrooms
Glass roofs, roof lanterns, bifolds, skylights — whatever specification you have in mind.
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Fully project-managed
One point of contact from groundworks through to final decoration and sign-off.
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Fixed-price quotes, no hidden extras
Variations only arise if you change the scope — and we get written sign-off before proceeding.

Typical Costs

Guide prices for West Yorkshire. Exact quotes provided after free site survey.

Small single-storey (up to 15m²) From £28,000

Standard single-storey (15–25m²) From £42,000

Large single-storey (25m²+) From £58,000

Double-storey extension From £75,000

Prices include labour, materials, groundworks and building regs. Excludes kitchen units, appliances or decoration unless specified.

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House Extension FAQs

Do I need planning permission for an extension? +

Many extensions fall under Permitted Development rights, meaning no planning application is needed. Limits apply — typically 4m depth for detached houses, 3m for others. We assess this at your free survey and handle any planning applications required at no extra management charge.

How long does a house extension take? +

A typical single-storey extension takes 8–12 weeks on site once groundworks begin. A double-storey project is usually 14–20 weeks. Weather, material lead times and the level of finish you specify can all affect this — we agree a realistic programme before we start.

Can I stay at home during the build? +

Yes — most of our extension clients remain in the property throughout. We work agreed hours (07:30–17:30 weekdays) and protect internal areas with hoarding and dust sheets. The point at which your internal wall is knocked through is usually the most disruptive — we plan this to minimise inconvenience.

Related Services

Loft Conversions

Add a bedroom or en-suite above without the footprint.

Refurbishments

Combine your extension with a full internal renovation.

Structural Works

Steel beams, wall removals and load-bearing modifications.

Ready to extend your home?

We'll visit, listen, and give you an honest fixed-price quote — no obligation, no sales pressure.

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