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Planning application

23 Cowper Street Olney MK46 4BW

Granted Milton Keynes 23/00932/HOU Householder Application

Works: Extension Small domestic

Read from the description, not a valuation. How we read the register

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

The erection of a single storey rear extension, a pitched roof over existing singe storey flat roof extension and a glass canopy

As published by the council, reference 23/00932/HOU

Application record

Reference
23/00932/HOU
Type
Householder Application
Status
Decision Made
Decision
Granted As published: Application permitted
Received
18 Apr 2023
Validated
24 Apr 2023
Decided
19 Jun 2023
Ward
Olney (Historic 2026)
Parish
Olney
Decision by
Delegated Decision
Postcode
MK46 4BW

Site history

Applications at this address on the Milton Keynes register

This site has had 2 applications since 2023: 2 approved, 0 refused.

  • 23/00933/CLUP Granted

    23 Cowper Street Olney MK46 4BW

    Certificate of Lawfulness for the proposed rear dormer

    Decided 15 Jun 2023 Lawful development

Timeline

Dates from the published record

  1. 18 Apr 2023

    Received by Milton Keynes

  2. 24 Apr 2023

    Validated

    Checked as complete and ready for consideration.

  3. 19 Jun 2023

    Decision issued: Application permitted

  4. 1 Sep 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

David Swanston Architectural Agent, an architecture practice

12 applications on PlanIndex · across 2 councils · 91% granted

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Documents

Plans, drawings, consultee responses and the officer's report

8 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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What this grant of permission means

Milton Keynes granted permission on 19 June 2023, 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.

About householder applications

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.

Nearby applications

Within 0.3 miles

  • 23 Cowper Street Olney MK46 4BW

    23/00933/CLUP Submitted 18 Apr 2023 50 yards away

    Certificate of Lawfulness for the proposed rear dormer

    Granted Lawful development Loft or dormer 7 docs

  • REAR OF, 4A COWPER STREET, OLNEY, MK46 4BW

    PLN/2026/2053 Submitted 29 Sep 2026 50 yards away

    70% historically approved · decision due ~24 Nov

    Outline application (matters of access, layout, scale, appearance and landscaping reserved) for erection of one dwelling with garage

    Awaiting decision Outline 7 docs
    Domestic

  • 8 Cowper Street Olney MK46 4BW

    20/00078/FUL Submitted 14 Jan 2020 50 yards away

    Single storey rear extension

    Granted Full applications Extension 6 docs
    Small domestic

  • 24 Midland Road Olney MK46 4BL

    19/02801/FUL Submitted 24 Oct 2019 100 yards away

    Rear single storey flat roof extension with associated alteration works.

    Granted Full applications Extension 8 docs
    Small domestic

  • 43 WELLINGBOROUGH ROAD, OLNEY, MK46 4BJ

    PLN/2025/1820 Submitted 2 Sep 2025 100 yards away

    The erection of a single storey side extension with roof lights and loft conversion including roof lights to front and rear roof slopes

    Granted Householder Extension Loft or dormer 6 docs
    Small domestic

  • 47 Midland Road Olney MK46 4BP

    19/03334/NMA Submitted 12 Dec 2019 100 yards away

    Non material amendment to application 19/00857/FUL to amend floor and roof plans

    Granted Amendments 8 docs

In Milton Keynes

  • 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