11B Calonne Road, Merton, Wimbledon, SW19 8HH

the demolition of existing dwelling and erection of replacement dwelling with basement and associated works without complying with a condition attached to planning permission Ref 25/P1511, dated 15 September 2025

Authority: London Borough of Merton
Appeal type: minor · Planning
Procedure: Written
Development: residential
Postcode: SW19 8HH

Main issues, as the Inspector framed them

The effect that altering the design of the dwelling would have on the Wimbledon North Conservation Area in which the appeal site is located, including a non-designated heritage asset at 11/11a Calonne Road

What decided it

The modest degree of outward projection brought about by the appeal scheme would not result in harm to the conservation area where the approved scheme with the same width and height is not harmful.

Plan policies cited: Policy HC1 of the London Plan (2021), Policies D12.3 and D12.5 of the Merton Local Plan (2024)

Read the decision letter on the Inspectorate’s site

The main issues and the deciding factor are read from the published letter by Town Planner Pro; the letter itself is the record. Contains public sector information licensed under the Open Government Licence v3.0. Research, not advice.

Town Planner Pro

What an account adds

Draw a red line around your site and the appraisal follows.
- Heritage. Listed buildings by grade and distance, conservation areas, scheduled monuments, registered parks and gardens, heritage at risk.
- Landscape and environment. Green belt, national parks and national landscapes, SSSIs, ancient woodland, SPA, SAC and Ramsar sites, nutrient catchments.
- Flooding. Flood zones 2 and 3, surface water, and both again with climate change.
- Transport. The 800 metre station catchment and service frequency, bus stops with their weekday frequency, the cycle network, and the Framework’s transport tests measured for the site.
Then the development plan position, the housing land supply as an Inspector last accepted it, and every appeal decided around the site with its letter.
Every English appeal since 2016, with the letter behind it wherever the Inspectorate published one. Searched by meaning as well as by words, with the key case law counted live across the letters.
Casework that chases the deadlines. Applications, appeals and conditions with their statutory dates.
The judgement stays yours. The tool gathers the material and dates it.

Join the waiting list

In the app this decision sits on the map beside every other appeal around it, with the full reasoning summary, the letter held on file, and the case law it applies.