Planning appeal decision
450 Sipson Road, Hillingdon, UB7 0HY
Planning appeal 3311255 at 450 Sipson Road, Hillingdon, UB7 0HY (London Borough of Hillingdon) was dismissed on 11 May 2023 by Inspector Caines A, by written representations. The main issue, as the Inspector framed it: the effect of the development on the character and appearance of the host building and surrounding area.
single-storey rear and 2 storey side and part 2 storey rear extension
- Authority
- London Borough of Hillingdon
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Caines A
- Postcode
- UB7 0HY
Main issues, as the Inspector framed them
- the effect of the development on the character and appearance of the host building and surrounding area
- the living conditions of the occupants of 448 Sipson Road with regards to outlook and light
What decided it
The two-storey side extension's conflict with Policy DMHD1 through inadequate setback from the side boundary and resulting adverse impact on the character and appearance of the area.
What the Inspector cited
- Development plan policies
- Policy DMHD1Policy DMHB11Policy BE1
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
Town Planner Pro holds this letter. The Appeals plan opens it and every other letter we hold, all of them searchable, with the main issues and what decided each case picked out. We do not show letters on the free site because they carry people’s names and addresses.
With an account
What an account adds to this decision


More decisions in London Borough of Hillingdon
The authority’s record since 2016 · every decision in 2023
- Dismissed27 October 202660153104 Albany Close, Ickenham, UB10 8QW
- Dismissed27 October 2026600985618-20 Wilmar Close, Hayes, UB4 8ET
- Dismissed21 October 2026601178225 Stirling Road, Hayes, UB3 3AH
- Dismissed19 October 20266011268364 Victoria Road, Ruislip, HA4 0ET
- Allowed6 October 2026601385888 Stormount Drive, Hayes, UB3 1RH
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.
®