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Ambitious expansion and coversion of a small high street building in a conservation area

Location

Denmark Hill SE5

Local Authority

Southwark Council

Plot Type

Conservation area

Project Type

Flat conversion

Accomplishment

A maisonette and a one-bedroom flat, plus expanded commercial space

Services by Urbanist Architecture

Project architect, delivery architect, planning consultant

Challenge

Our client owned a four-storey Victorian building with a shopfront and basement storage, with vacant upper floors previously used for offices. The goal was to convert the upper floors into flats, requiring extensive extensions on all levels, including the basement and roof, while maintaining the shopfront as a business. Ultimately, our challenge was to gain council approval for significant additions to the building amidst stringent heritage and archaeological considerations.

Approach

We conducted intense research into the local planning history, focusing on the neighbouring buildings for crucial context. Neighbouring properties featured full mansard roofs and large extensions, setting precedents and reducing concerns about overshadowing and overlooking. Armed with this knowledge, we crafted an ambitious design plan that increased the building size on every floor, stepping back at each vertical level.

Solution

Confident in our design's improvement on the existing structure, both practically and in heritage terms, we prepared a detailed heritage statement in-house. The council was convinced by our well-researched and thoughtfully presented case, granting planning permission and allowing us to successfully transform the space into a maisonette and one-bedroom flat, alongside expanded commercial space at the base of the property.

Before & After

Grey and black scale floor plan drawings of the existing traingular ground floor commercial unit with a two door access from the street.
Location

Denmark Hill SE5

Local Authority

Southwark Council

Plot Type

Conservation area

Project Type

Flat conversion

Accomplishment

A maisonette and a one-bedroom flat, plus expanded commercial space

Services by Urbanist Architecture

Project architect, delivery architect, planning consultant

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