Cost calculator: Get an instant estimate

Our cost of extension calculator helps you quickly assess the feasibility of your home renovation project.
Just fill out a few details and we’ll break it all down for you.

About You & Your Home

What type of home do you live in?

Detached Home

Detached

Semi Detached Home

Semi-detached

Terraced Home

Terraced

Flat Home

Flat

Project Type

What type of project are you planning?

Loft conversion Home

Loft conversion

Extension Home

Extension

New build

New build

Internal remodelling Home

Internal remodeling

Renovation

Renovation

Design & Permissions

Do you already have drawings or plans?

Do you know if planning permission is needed?

Is your house listed or in a conservation area?

Key Features

Will you need to remove internal walls to make it open-plan?

Would you like roof windows or skylights?

A few details from you, please...

Contact Information