15 PORTISHEAD DRIVE, TATTENHOE, MILTON KEYNES, MK4 3BE

1. 27 Oct 2025

   Received by Milton Keynes

2. 15 Dec 2025

   Decision issued: Approved with Conditions

3. 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.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 21 Portishead Drive Tattenhoe Milton Keynes MK4 3BE

  20/00296/FUL Submitted 4 Feb 2020 32m away

  Proposed single storey rear extension.

  Granted Full applications Extension 6 docs
  Small domestic

• 15 Hengistbury Lane Tattenhoe Milton Keynes MK4 3BF

  20/00147/FUL Submitted 22 Jan 2020 156m away

  Removal of an existing conservatory and replacing with a single storey extension.

  Granted Full applications Extension 9 docs
  Small domestic

• HOWE PARK HOUSE, 32 HENGISTBURY LANE, TATTENHOE, MILTON KEYNES, MK4 3AB

  PLN/2026/0468 Submitted 9 Mar 2026 207m away

  Proposed erection of garden fencing (Retrospective)

  Granted Full applications 10 docs

• HOWE PARK HOUSE, 32 HENGISTBURY LANE, TATTENHOE, MILTON KEYNES, MK4 3AB

  PLN/2026/0467 Submitted 9 Mar 2026 207m away

  Listed Building Consent for the proposed erection of garden fencing (Retrospective)

  Granted Heritage and listed buildings 11 docs

• Howe Park House, 32 Hengistbury Lane, Tattenhoe, Milton Keynes, MK4 3AB

  PLN/2026/0189 Submitted 2 Feb 2026 207m away

  Continued use of the former ancillary garage outbuilding (Class C2) as a staff training room (Class C2) including internal alterations, the replacement of external doors, window and a ramp

  Granted Full applications Windows or glazing 15 docs

• Howe Park House, 32 Hengistbury Lane, Tattenhoe, Milton Keynes, MK4 3AB

  PLN/2026/0188 Submitted 2 Feb 2026 207m away

  Listed building consent for the continued use of the former ancillary garage outbuilding (Class C2) as a staff training room (Class C2) including internal alterations, the replacement of external doors, window and a ramp

  Granted Heritage and listed buildings Windows or glazing 15 docs

• PLN/2026/1194 Granted

  16 GUN LANE, SHERINGTON, NEWPORT PAGNELL, MK16 9PE

  Erection of two storey front, side and rear extensions and alterations to existing fenestrations

  5 Jun 2026 Householder
• PLN/2026/1183 Granted

  163 BROADLANDS, NETHERFIELD, MILTON KEYNES, MK6 4HN

  Erection of a single storey rear extension and conversion of garage

  4 Jun 2026 Householder
• PLN/2026/1388 Granted

  7 HOLLAND WAY, WALTON, MILTON KEYNES, MK7 7FB

  Retention of existing air conditioning units

  1 Jul 2026 Householder
• PLN/2026/1802 Awaiting decision

  44 BERNAY GARDENS, BOLBECK PARK, MILTON KEYNES, MK15 8QD

  Removal of front porch & proposed single storey front extension with roof light

  27 Aug 2026 Householder
• PLN/2026/1187 Granted

  7 MORTON ROAD, EAGLE FARM SOUTH, MILTON KEYNES, MK17 7BS

  Erection of a single storey rear extension

  4 Jun 2026 Householder