The client for this house extension already held a certificate of lawful development to extend their detached home with a 70m² two-storey rear extension under permitted development rights. Strzala Architects were approached to develop the design and internal layouts further, within the constraints of the design which the certificate of lawfulness had been obtained for.

The design sticks to the size and form of these volumes but explores opportunities to open out the existing house into the extension, completely re-configuring the entire layout to work with the extension and create much larger living spaces at ground floor level and a new impressive master bedroom suite at first floor.

Materials remain in keeping with the existing house and surrounding context to comply with Class A lawful development, however these are used in a contemporary manner, utilising ribbed brick bonds and full height glazing to create an extension which is domestic in style but bold in delivery.

Under Class G permitted development a new chimney stack stems from the new living space, creating a hearth and focal point both internally and externally. This is also positioned where the extension meets the original house, masking the joint between these and creating a visual harmony between existing and new.