Planning appeal decision
109 Mortlake High Street, London, SW14 8HQ
Planning appeal 3295916 at 109 Mortlake High Street, London, SW14 8HQ (Richmond Upon Thames London Borough Council) was allowed on 20 September 2022 by Inspector Down K, by written representations. The main issue, as the Inspector framed it: The effect of the proposed three storey rear extension on the character and appearance of the host building, the adjoining terrace and the surrounding area, including the Mortlake Conservation Area.
demolition of a rear lower ground floor extension and construction of a part three, part single storey rear extension with 2 x dormer roof extensions to the rear. Roof-lights to the front roof, new staircase access to front light- well. Removal and replacement of existing uPVC windows with new timber sash windows to match
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Down K
- Postcode
- SW14 8HQ
Main issues, as the Inspector framed them
- The effect of the proposed three storey rear extension on the character and appearance of the host building, the adjoining terrace and the surrounding area, including the Mortlake Conservation Area.
What decided it
The proposed three storey rear extension, owing to its sympathetic design, subservient scale and inconspicuous siting against the adjacent taller flatted development, would have no materially harmful effect on the character and appearance of the host building, terrace or surrounding area and would preserve the significance of the Mortlake Conservation Area.
What the Inspector cited
- Development plan policies
- Policy LP3Policy LP1Policy LP4
How the Inspector dealt with each one is set out in the app, in order: the development plan, national policy, housing land supply, other considerations and the planning balance, beside the letter.
See how each was appliedThe decision letter
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What an account adds to this decision


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The main issues, what decided it, the planning balance and the policies and judgments listed as cited are read from the published letter by Town Planner Pro and are our summary, not the Inspector’s words; the letter itself is the record. Contains public sector information licensed under the Open Government Licence v3.0. Research, not advice.
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