50 Colwyn Avenue Derby DE23 6HG

1. 26 Aug 2026

   Validated

   Checked as complete and ready for consideration.

2. 28 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 21 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Derby took a median of 79 days over the applications it decided in the last year.

This application is with Derby for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 150 Warwick Avenue Derby DE23 6HL

  19/01685/FUL Submitted 6 Dec 2019 94m away

  Two storey rear and single storey side and rear extensions to dwelling house (wet room, utility, lounge, kitchen and bedroom) and installation of a dormer to the rear elevation

  Granted Full applications Extension Loft or dormer 5 docs
  Small domestic

• Land Adjacent To 80 Fairfield Road Derby DE23 6PH

  26/00913/FUL Submitted 3 Sep 2026 134m away

  91% historically approved · decision due ~29 Oct

  Erection of a dwelling house (Use Class C3) - self and custom build development

  Awaiting decision Full applications New dwelling
  Domestic

• 155 Warwick Avenue Derby DE23 6HJ

  25/00792/CLP Submitted 7 May 2025 169m away

  Hip to gable roof alteration, installation of a dormer to the rear elevation, two roof lights to the front elevation and a second floor side elevation window

  Granted Lawful development Loft or dormer Windows or glazing 8 docs

• 91 Carlton Road Derby DE23 6HE

  26/01004/VAR Submitted 30 Jul 2026 197m away

  87% historically approved · decision due ~24 Sep

  Variation of condition 2 (approved plans) to amend the roof design, fenestration and layout of previously approved planning permission 23/01421/FUL - Single storey rear extension to dwelling house (bedroom/kitchen/dining room). Raising of roof height of existing garage and store to facilitate conversion to bathroom and kitchen (Retrospective Application)

  Awaiting decision Amendments Extension Windows or glazing
  Small domestic

• 64 Penrhyn Avenue Derby DE23 6LA

  22/00156/PNRH Submitted 2 Feb 2022 206m away

  Single storey rear extension (projecting beyond the rear wall of the original house by 3.85m, maximum height 3m, height to eaves 3m) to dwelling house

  Granted Prior approval Extension 4 docs
  Small domestic

• 192 Warwick Avenue Derby DE23 6HP

  22/00547/FUL Submitted 4 Apr 2022 215m away

  Two storey side extension to dwelling house (garage, kitchen, two bedrooms and shower room)

  Granted Full applications Extension 6 docs
  Domestic

• 26/01153/CLE Awaiting decision

  42 Cornhill Derby DE22 2FS

  Formal confirmation that a material operation has been undertaken within the prescribed time limit sufficient to implement planning consent 23/00744/FUL - Demolition of existing kitchen annex with outside toilet. Extension to add a new integral single garage with blocking off of existing garage door and replacement with a window on the front elevation. Extended single storey living space to the rear including relocated kitchen and living space with garden room. Associated landscaping to the rear.

  Lawful development
• 26/01124/CLP Awaiting decision

  79 Stoney Lane Derby DE21 7QG

  Single storey rear extension to dwelling house (kitchen/diner and utility room)

  Lawful development
• 26/01119/CLP Awaiting decision

  23 Hatchmere Close Derby DE21 2HP

  Erection of single storey rear extension to dwelling house (lounge)

  Lawful development
• 26/01118/CLE Awaiting decision

  5 Dickinson Street Derby DE24 8WJ

  Use of the building as a house in multiple occupation (Use Class C4)

  Lawful development
• 26/01115/CLE Awaiting decision

  39 Harcourt Street Derby DE1 1PW

  Use of the building as a house in multiple occupation (Use Class C4)

  Lawful development