Try our instant architectural design cost calculator

See how much your new home extension project would cost to draw up + the planning, from the most five-star reviewed practice on Trustpilot. Don’t worry, it’s free.

What sort of property is this?

And which bit do you want to extend?

Ground Floor
Loft
First Floor
Other

How many bedrooms does this property have?

This will give us an idea of the property's size

When are you hoping to start the design process?

Are you interested in any of these services?

A few details from you, please...