12A Hertford Court Northampton NN3 9TD

1. 21 Apr 2026

   Received by West Northamptonshire

2. 16 Jun 2026

   Decision issued: Approval

3. 27 Jul 2026

   Added to PlanIndex

West Northamptonshire granted permission on 16 June 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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.

• 8 Hertford Court Northampton NN3 9TD

  2026/2699/HH Submitted 25 Jun 2026 50 yards away

  Single storey side and rear extension. Changing roof over garage and porch from a flat roof to a pitched roof.

  Granted Householder Extension 10 docs
  Small domestic

• 20 Conyngham Road Northampton NN3 9TA

  2026/2051/FULL Submitted 5 May 2026 200 yards away

  Proposed single storey rear extension

  Granted Full applications Extension 6 docs
  Small domestic

• 46 Conyngham Road Northampton NN3 9TA

  2026/0779/PNHPD Submitted 18 Feb 2026 200 yards away

  Seeking whether Prior Approval required [under schedule 2, Part 1, Class A] of the above order for a larger single storey rear extension 7.3m (beyond rear wall of the original dwellinghouse) x 3.5m (high) x 2.2m (eaves height) and internal alterations.

  Granted Prior approval Extension 14 docs
  Small domestic

• 6 Jersey Court, Northampton, NN3 9TB

  2024/4294/FULL Submitted 11 Sep 2024 200 yards away

  Single Storey Flat Roof Rear Extension with internal and roof alterations

  Granted Full applications Extension Roofing 14 docs
  Small domestic

• Little Billing Way/A4500 Wellingborough Road Roundabout Northampton NN3 9JQ

  2024/3692/ADV Submitted 23 Jul 2024 250 yards away

  4 No. non-illuminated signs

  Granted Advertising 10 docs

• Former Pearce Leather Works Wellingborough Road Northampton NN3 9BG

  2025/3997/FULL Submitted 5 Sep 2025 250 yards away

  89% historically approved · decision due ~4 Dec

  Alterations and extension to existing building and conversion to 32no. flats, with provision of bin store areas and car parking.

  Awaiting decision Full applications New dwelling Extension 41 docs
  Major scheme

• 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