Know what's possible. Know what it costs.

For UK homeowners: what you could do with your house, what the work really costs, and what other people paid to do it.

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Calculators

Built on figures we maintain and review, not averages pulled from elsewhere.

What a rear, side or double-storey extension typically costs, and whether it pays back.

Rooflight, dormer, hip-to-gable and mansard conversions.

Budget through premium, scaled to your kitchen's size.

Compare the true cost per m² of extending versus moving.

What jobs cost, what they do to your house's value, and what you give up along the way.

What pays back when you sell, and what doesn't.

Ratings, what improves them, and what it costs.

The work a house needs, and what ignoring it costs.

Kitchens, Loft conversions, Extensions, Gardens & driveways and more.

What the work involves, what it costs, and what people wish they'd known.

Local prices, what sells, and what buyers there actually want.

Share what it cost. It helps the next homeowner budget honestly, and it is the only place these figures come from.