Case study · Kingston upon Thames

Single-storey rear extension in Coombe

Approved at first submission by Kingston Council in 10 weeks. Fixed fee £1,225.

Project summary

Service
Single-storey rear extension
Location
Coombe, Kingston upon Thames
Property stock
1930s detached, Edwardian villas
Article 4 in borough
No
Process duration
10 weeks
Outcome
Approved at first submission
The brief

What the client needed

A family in Coombe approached us for single-storey rear extension on a 1930s detached property. Constraints: respecting streetscape rhythm typical of Kingston upon Thames, maintaining rear garden depth, and meeting Kingston Council's design expectations for the conservation context (22 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 Kingston 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 Kingston Council via the Planning Portal. Permitted Development eligibility confirmed via parallel LDC. Officer comments minor, addressed in 5 days. Approved at first submission.

Decision recorded Kingston Council, statutory determination period.

Similar project in Coombe?

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

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