113 Colwyn Road Northampton NN1 3PU

1. 3 Mar 2026

   Received by West Northamptonshire

2. 4 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 28 April 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   West Northamptonshire took a median of 69 days over the applications it decided in the last year.

This application is with West Northamptonshire for determination, against a statutory target of eight weeks. Over the last year West Northamptonshire decided lawful development applications in a median of 63 days. More in our guide to how long planning decisions take.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 89 Colwyn Road Northampton NN1 3PU

  2025/3265/LDE Submitted 23 Jul 2025 50 yards away

  Lawful development certificate (existing) for use of property as a HMO

  Granted Lawful development 9 docs

• Merton Guest House 109 Colwyn Road Northampton NN1 3PU

  2024/5080/S73 Submitted 28 Oct 2024 50 yards away

  Variation of condition 2 (number of occupiers) of 2024/3569/FULL (Change of use from a 6 person HMO (Use Class C4) to an 8 person HMO (Use Class SG)) to increase the number of occupiers by 2

  Withdrawn Amendments 13 docs

• Merton Guest House 109 Colwyn Road Northampton NN1 3PU

  2024/5179/FULL Submitted 5 Nov 2024 50 yards away

  House of multiple occupation - Increase in the number of occupants from 8 to 10

  Granted Full applications 11 docs

• 107 Colwyn Road Northampton NN1 3PU

  2024/5077/FULL Submitted 28 Oct 2024 50 yards away

  Erection of two storey rear extension

  Granted Full applications Extension 21 docs

• Warkworth House 105 Colwyn Road Northampton NN1 3PU

  2024/1965/LDE Submitted 21 Mar 2024 50 yards away

  Lawful Development Certificate (Existing) Continued use as 5 self-contained units

  Granted Lawful development 9 docs

• 115 Colwyn Road Northampton NN1 3PU

  2024/2620/FULL Submitted 16 May 2024 50 yards away

  Part retrospective application for two additional basement flats, extra windows to one basement flat and alterations to building lightwell. New external glazed access door to one new basement flat. Alterations to highway cross over. Bin and Bike store to the rear.

  Granted Full applications New dwelling Windows or glazing 23 docs

• 2026/3534/LDE Granted

  Plumpton Barn Plumpton End Paulerspury NN12 7NJ

  Lawful development certificate (existing) for the retention of pond within the residential curtilage of the dwelling.

  Received 13 Aug, published by the council 9 Sep 2026 Lawful development
• 2026/3278/LDP Granted

  26 Perry Street Northampton NN1 4HW

  Erection of a single storey rear extension.

  Received 27 Jul, published by the council 15 Aug 2026 Lawful development
• 2026/3389/LDP Refused

  23 Greenell Close Deanshanger MK19 6UX

  Lawful development certificate (proposed) for single storey rear extension and wood burning stove to include external flue.

  Received 4 Aug, published by the council 1 Sep 2026 Lawful development
• 2026/3274/LDP Granted

  Orchard Lodge 8A Glassthorpe Lane Harpole NN7 4DU

  Lawful development certificate (proposed) for the proposed provision of a twin unit mobile home within the garden of the lawful dwelling house for use as additional accommodation by one household

  Received 27 Jul, published by the council 22 Aug 2026 Lawful development
• 2026/3038/LDE Granted

  3 Huntsham Close Northampton NN3 3AX

  Certificate of Lawfulness for Existing Use - C4 House in Multiple Occupation (HMO).

  Received 14 Jul, published by the council 10 Aug 2026 Lawful development