GET AN ESTIMATE

See a ballpark price for your project.

Answer a few quick questions and we'll show you an estimated range. This is a starting point, not a fixed quote — every figure is subject to a proper conversation and site-specific review before anything's confirmed.

A home extension pulls in several separate costs — we'll break each one down individually below, rather than giving you a single number that hides what it's made up of.

What are you adding?

House & extension plan

House dimensions are just for the drawing — only the extension sizes below affect the price.

HOUSE WIDTH (M)

HOUSE DEPTH (M)

Extension 1

Side

Storeys

WIDTH (M)

DEPTH (M)

= 12.0m²

What's the site's postcode?

Distance and regional pricing are both worked out automatically from this — nothing else to fill in.

Do you know if you need planning permission?

Plenty of single-storey rear extensions fall under Permitted Development and need no application at all — if you're not sure, we can check this for you.

Will the work be near or over a public sewer (a water authority build-over agreement)?

This isn't always obvious from the surface — if you're not sure, that's exactly the kind of thing we'd check before confirming a fee.