Case study · Hackney

Mansard roof extension in De Beauvoir Town

Approved in conservation area by Hackney Council in 16 weeks. Fixed fee £1,575.

Project summary

Service
Mansard roof extension
Location
De Beauvoir Town, Hackney
Property stock
Georgian villas and terraces
Article 4 in borough
Yes
Process duration
16 weeks
Outcome
Approved in conservation area
The brief

What the client needed

A family in De Beauvoir Town approached us for mansard roof extension on a georgian villas and terraces property. Constraints: respecting streetscape rhythm typical of Hackney, maintaining rear garden depth, and meeting Hackney Council's design expectations for the conservation context (29 conservation areas borough-wide).

Design response

How we designed it

Measured survey week 1. Three design iterations balancing internal layout against external massing visible from neighbours. Two scheme massings tested against Hackney Council's adopted design guidance. Chosen scheme matched existing roof pitch, used matching brick, set the new opening back from the eaves.

Planning route

Submission and decision

Submitted to Hackney Council via the Planning Portal. With Article 4 in force in Hackney, we confirmed our scheme retained the necessary permissions before submission. Officer comments minor, addressed in 5 days. Approved in conservation area.

Decision recorded Hackney Council, statutory determination period.

Similar project in De Beauvoir Town?

Same fixed fee. Same MCIAT team. Same approval discipline.

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