13 ONSLOW COURT, CALDECOTTE, MILTON KEYNES, MK7 8LP

1. 17 Sep 2025

   Received by Milton Keynes

2. 11 Nov 2025

   Decision issued: Refused

3. 10 Aug 2026

   Added to PlanIndex

Milton Keynes refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 7 COOK CLOSE, WALTON PARK, MILTON KEYNES, MK7 7JA

  PLN/2025/2444 Submitted 14 Nov 2025 200 yards away

  Certificate of lawfulness for proposed removal of conservatory and erection of rear single storey extension with roof lights

  Granted Lawful development Extension Loft or dormer 4 docs
  Small domestic

• 3 COOK CLOSE, WALTON PARK, MILTON KEYNES, MK7 7JA

  PLN/2025/1817 Submitted 2 Sep 2025 200 yards away

  The erection of a proposed single storey side/ rear extension

  Granted Householder Extension 5 docs
  Small domestic

• 24 The Nortons Caldecotte Milton Keynes MK7 8HQ

  23/00895/HOU Submitted 13 Apr 2023 300 yards away

  Replacement of existing single storey with a two storey side extension with first floor rear balcony and loft conversion with roof lights

  Granted Householder Extension Loft or dormer 23 docs
  Small domestic

• 10 Mapledurham Caldecotte Milton Keynes MK7 8HG

  20/01359/FUL Submitted 10 Jun 2020 350 yards away

  First floor extension over existing garage and single storey side extension (resubmission of 20/00909/FUL)

  Granted Full applications Extension 19 docs
  Small domestic

• 13 Heybridge Crescent Caldecotte Milton Keynes MK7 8HL

  23/00022/HOU Submitted 5 Jan 2023 350 yards away

  The erection of a first floor side extension, the erection of single storey front lobby, and the enlargement of the bay window to ground floor front elevation, and associated internal alterations

  Granted Householder Extension Windows or glazing 9 docs
  Small domestic

• 10 Mapledurham Caldecotte Milton Keynes MK7 8HG

  20/00909/FUL Submitted 13 Apr 2020 350 yards away

  First floor extension over existing garage and single storey side extension

  Withdrawn Full applications Extension 20 docs
  Small domestic

• PLN/2026/1700 Granted

  63 MOORES HILL, YARDLEY ROAD, OLNEY, MK46 5DY

  Proposed erection of a single storey rear extension and front porch extension

  Received 12 Aug, published by the council 22 Aug 2026 Householder
• PLN/2026/1279 Granted

  12 STATHAM PLACE, OLDBROOK, MILTON KEYNES, MK6 2HD

  Proposed demolition of existing rear facing conservatory, the erection of a single storey side extension, erection of front & rear extensions with conversion of garage into habitable space and a new hardstanding area to the front for off road parking

  Received 16 Jun, published by the council 27 Jul 2026 Householder
• PLN/2026/1666 Granted

  148 CAMBRIDGE STREET, WOLVERTON, MILTON KEYNES, MK12 5AQ

  Replacement windows and entrance door to front elevation (part retrospective)

  Received 5 Aug, published by the council 22 Aug 2026 Householder
• PLN/2026/1612 Granted

  68 HENGISTBURY LANE, TATTENHOE, MILTON KEYNES, MK4 3EL

  Installation of a dormer extension and rooflights to front roof slope and rooflights to rear roofslope.

  Received 31 Jul, published by the council 22 Aug 2026 Householder
• PLN/2026/1516 Granted

  252 PRIESTLEY DRIVE, TATTENHOE PARK, MILTON KEYNES, MK4 4QB

  Erection of a pergola structure with polycarbonate roof covering to the rear of the house and a single storey garden office (retrospective)

  Received 17 Jul, published by the council 4 Aug 2026 Householder