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Planning appeal decision

Split Decision1 April 20263369269

1 Derby Street, Blackburn, BB1 5HR

Planning appeal 3369269 at 1 Derby Street, Blackburn, BB1 5HR (Blackburn with Darwen Borough Council) was allowed in part (a split decision) on 1 April 2026 by Inspector Clark J, by written representations. The main issue, as the Inspector framed it: The effect of the proposed two storey extension on the living conditions of the occupiers of No 3 Derby Street by reason of outlook and daylight.

two storey rear extension and extension to side porch

Authority
Blackburn with Darwen Borough Council
Appeal type
householder · Householder (HAS)
Procedure
Written Representations
Development
residential · Householder developments
Inspector
Clark J
Postcode
BB1 5HR

Main issues, as the Inspector framed them

  • The effect of the proposed two storey extension on the living conditions of the occupiers of No 3 Derby Street by reason of outlook and daylight

What decided it

The proposed two storey rear extension would unacceptably reduce outlook and daylight to the kitchen window of No 3 Derby Street and appear overbearing, conflicting with Local Plan Policy DM02 and SPD guidance on separation distances.

What the Inspector cited

Development plan policies
Policy DM02Policy RES E3Policy RES E16Policy CP8Policy DM27

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 applied

The decision letter

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More decisions in Blackburn with Darwen

The authority’s record since 2016 · every decision in 2026

  1. Allowed28 August 20266007521
    Bank Lane, Blackburn, BB1 2AP
  2. Dismissed22 July 20266006885
    12 Coniston Road, Blackburn, BB1 5NP
  3. Dismissed2 June 20263370590
    40 Hillcrest Road, Blackburn, Lancashire , BB2 5LF
  4. Dismissed10 April 20266004038
    Ramwells Barn, Edge Lane, Turton, Bolton, BL7 0NJ
  5. Dismissed16 March 20266001196
    Dixon House, 17A Gorse Road, Blackburn, BB2 6LY

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.

In the app this decision sits on the map beside every appeal around it, with its letter to read and the main issues, policies and judgments cited picked out.