Southgate · Design & Build

Basement Conversions in Southgate

Looking for basement conversion specialists in Southgate? Cheshunt Build is a local design and build team covering Southgate, Oakwood, New Southgate and Arnos Grove. Cellar conversions and full basement digs with underpinning, tanking, lightwells and proper drainage, turning dead space under the house into dry, warm, habitable rooms.

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Bright habitable basement room

Why basement conversions work well in Southgate

Southgate is known for its 1930s suburban housing, including handsome semis and detached homes on the tree-lined roads around the Lakes Estate, many ideal for extensions and loft conversions. That makes Southgate a great place to convert a cellar or dig out a basement, and because we design and build in one team, your drawings are always buildable and your price is set early and honestly.

Planning and building control in Southgate

Southgate sits under Enfield Council. Converting an existing cellar is often permitted development, but lowering the floor or a full dig usually needs building control, and sometimes planning and party wall agreements, all of which we handle. As a design and build team we prepare the drawings and manage the whole process for you, so there is one team accountable from first sketch to sign-off.

What it costs, and how to get a figure

Converting an existing cellar here typically runs from around £1,500 to £2,500 per square metre, while a full dig-out with underpinning costs considerably more. Our online estimator gives you an itemised budget for your Southgate project in about a minute, emailed as a branded PDF, and we confirm a fixed price after a free, no-obligation site visit.

Helpful guides

Frequently asked questions

How much does a basement conversion cost in Southgate?+

Converting an existing cellar here typically runs from around £1,500 to £2,500 per square metre, while a full dig-out with underpinning costs considerably more. Use our instant estimator for a figure tailored to your specific project.

Do I need planning permission in Southgate?+

Converting an existing cellar is often permitted development, but lowering the floor or a full dig usually needs building control, and sometimes planning and party wall agreements, all of which we handle. We check the position for your exact address under Enfield Council.

Which parts of Southgate do you cover?+

All of N14, including Southgate, Oakwood, New Southgate and Arnos Grove, plus the surrounding areas.

How do I get a quote?+

Use our instant estimator for an itemised budget in about a minute, then we confirm a fixed price after a free site visit.

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An indicative, itemised budget in about a minute, emailed straight to you as a branded PDF. We confirm a fixed price after a free, no-obligation site visit.

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