21 Lasham Court Northampton NN3 9BD

1. 8 Jan 2026

   Received by West Northamptonshire

2. 9 Jan 2026

   Validated

   Checked as complete and ready for consideration.

3. 16 Mar 2026

   Decision issued: Approval

4. 10 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

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

• 17 Lasham Court Northampton NN3 9BD

  2025/4074/LDP Submitted 10 Sep 2025 0m away

  Lawful development certificate (proposed) for change of use of dwellinghouse from Use Class C3 to Class C3 (b)

  Granted Lawful development 8 docs
  Domestic

• Unit 1 Fieldmill Road Great Billing Northampton NN3 9DG

  2024/4255/FULL Submitted 6 Sep 2024 210m away

  Replacement refrigeration plant and external alterations

  Granted Full applications 9 docs

• 56 Station Road Northampton NN3 9DS

  2026/0221/PA Submitted 15 Jan 2026 215m away

  Determination as to whether prior approval is required (under Schedule 2, Part 1, Class AA of the above Order) for construction of additional 1 storey to existing bungalow, maximum height of 8.2m.

  Granted Prior approval 7 docs

• 5 Station Road Northampton NN3 9DS

  2026/2582/HH Submitted 15 Jun 2026 215m away

  92% historically approved · decision due ~9 Sep

  Construct entrance porch and replace rear conservatory with flat roof garden room

  Awaiting decision Householder Extension 43 docs
  Small domestic

• 89 Station Road Northampton NN3 9DS

  2025/3694/COND Submitted 16 Sep 2025 215m away

  Discharge of Conditions 3 (Materials), 9 (Foundation Details) and 11 (Refuse Bins) of Planning Permission 2024/0489/FULL. (Proposed 3-bedroomed Dwelling including Access, Parking & Amenity space).

  Granted Conditions 6 docs
  Domestic

• Land at 89 Station Road Northampton NN3 9DS

  2024/0489/FULL Submitted 21 Nov 2023 215m away

  Proposed 3-bedroomed Dwelling including Access, Parking & Amenity space

  Granted Full applications 17 docs
  Domestic

• 2026/2780/LDP Granted

  3 Hunt Close Towcester NN12 7AD

  Lawful development certificate (proposed) for demolition of existing conservatory and construction of a single storey rear extension

  26 Jun 2026 Lawful development
• 2026/2296/LDP Granted

  19 Deanshanger Road Wicken MK19 6BS

  Lawful development certificate (proposed) for construction of outbuilding

  22 May 2026 Lawful development
• 2026/1969/LDP Granted

  7 Bickerstaffes Road Towcester NN12 6EG

  Garage conversion

  27 Apr 2026 Lawful development
• 2026/2401/LDP Granted

  Stoneacre The Green Marston St Lawrence OX17 2DB

  Lawful development certificate (proposed) for construction of detatched garage

  10 Jun 2026 Lawful development
• 2026/1646/LDP Refused

  36 Spinney Hill Crescent Northampton NN3 6DL

  Use of the property by up to two children living together as a single household, with care provided in a domestic setting

  30 Mar 2026 Lawful development