Planning appeal decision
40b Colvestone Crescent, Hackney, London, E8 2LH
Planning appeal 3356369 at 40b Colvestone Crescent, Hackney, London, E8 2LH (London Borough of Hackney) was allowed on 1 September 2025 by Inspector Lancaster K, by written representations. The main issue, as the Inspector framed it: The effect of the proposed development on the character and appearance of the host property, with particular regard to whether it would preserve or enhance the character or appearance of St Mark's Conservation Area.
proposed works to replace the existing bay windows at the front of the property with double glazed units. Units will use timber frames and replicate the existing fenestration pattern including structural glazing bars and dimension. The units will be 24mm deep (including framework & glazing) to allow for the use of structural glazing bars as in the existing, whilst incorporating double glazing which will help insulate the property. All framework and cills will be painted white as per existing. Proposed works to replace the windows and door at the rear of the property with uPVC casement units. The proposed units will match the dimensions of the existing units and framework, and door will be in White Ash colour
- Authority
- London Borough of Hackney
- Appeal type
- householder · Planning Appeal
- Procedure
- Written Representations
- Development
- other · Householder developments
- Inspector
- Lancaster K
- Postcode
- E8 2LH
Main issues, as the Inspector framed them
- The effect of the proposed development on the character and appearance of the host property, with particular regard to whether it would preserve or enhance the character or appearance of St Mark's Conservation Area
What decided it
The rear elevation's non-historic 1970s construction and the limited public visibility of the rear windows, combined with the sympathetic design of the proposed uPVC replacements, mean the proposal would preserve the character and appearance of St Mark's Conservation Area.
What the Inspector cited
- Development plan policies
- Policy LP3Policy LP1Policy D4Policy HC1
- National Planning Policy Framework
- Paragraph 16
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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With an account
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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