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Planning application

143 ASH GROVE HAREFIELD UB9 6EZ

Granted Hillingdon 75225/APP/2019/3647 Full

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

Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 3.3 metres, and for which the height of the eaves would be 2.6 metres

As published by the council, reference 75225/APP/2019/3647

Application record

Reference
75225/APP/2019/3647
Type
Full
Status
Prior Approval N/Req
Decision
Permitted
Received
8 Nov 2019
Validated
14 Nov 2019
Decided
17 Dec 2019
Ward
HAREFIELD
Postcode
UB9 6EZ

Timeline

Dates from the published record

  1. 8 Nov 2019

    Received by Hillingdon

  2. 14 Nov 2019

    Validated

    Checked as complete and ready for consideration.

  3. 17 Dec 2019

    Decision issued: Permitted

  4. 23 Aug 2026

    Added to PlanIndex

Documents

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

6 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.

Trade members open them from here.

Open the documents

What a grant of permission means

The process from here

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.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 94 NORTHWOOD ROAD HAREFIELD UB9 6PS

    72555/APP/2026/1142 Submitted 8 May 2026 167m away

    Erection of a single storey extension to the rear, following the demolition of existing rear outrigger. (Amended Description)

    Granted Full applications Extension Demolition 4 docs
    Small domestic
  • 201 ASH GROVE HAREFIELD MIDDLESEX UB9 6HA

    55302/APP/2026/1730 Submitted 9 Jul 2026 169m away

    86% historically approved · decision due ~3 Sep

    Erection of a single-storey rear infill extension following demolition / alteration of the existing rear projection arrangement, together with associated internal alterations

    Awaiting decision Extension Demolition
    Small domestic
  • THE HAREFIELD ACADEMY, LORD ADONIS HOUSE NORTHWOOD WAY HAREFIELD UB9 6ET

    17709/APP/2026/1708 Submitted 8 Jul 2026 344m away

    86% historically approved · decision due ~2 Sep

    Details pursuant to the discharge of Conditions 16 (Road safety audit), 23 (Verification Suds), 26 (Parking plan), 27 (Delivery servicing plan) and 28 (Drop Off Collection Points) of planning permission ref. 17709/APP/2023/2673, dated 08-02-2024 (Demolition of former residential school and erection of academic building (Use Class F1) and ancillary structures including heat pump and substation enclosures, construction of a multi-use games area, revised vehicular access, landscaping, car and cycle parking and associated works.)

    Decided Demolition
  • THE HAREFIELD ACADEMY, LORD ADONIS HOUSE NORTHWOOD WAY HAREFIELD UB9 6ET

    17709/APP/2026/1923 Submitted 3 Aug 2026 344m away

    86% historically approved · decision due ~28 Sep

    Details pursuant to the discharge of Conditions 19 (Fire Statement), 22 (Energy Monitoring), 29 (Secure by Design), and 30 (Contaminated Land) of planning permission ref. 17709/APP/2023/2673, dated 08-02-2024 (Demolition of former residential school and erection of academic building (Use Class F1) and ancillary structures including heat pump and substation enclosures, construction of a multi-use games area, revised vehicular access, landscaping, car and cycle parking and associated works.)

    Decided Demolition
  • LORD ADONIS HOUSE HAREFIELD ACADEMY NORTHWOOD WAY HAREFIELD UB9 6ET

    17709/APP/2025/3061 Submitted 4 Dec 2025 344m away

    Section 96a application for Non-Material Amendment to planning permission reference 17709/APP/2023/2673, dated 08-02-2024 (Demolition of former residential school and erection of academic building (Use Class F1) and ancillary structures including heat pump and substation enclosures, construction of a multi-use games area, revised vehicular access, landscaping, car and cycle parking and associated works.) to make design amendments.

    Granted Full applications Demolition 10 docs
  • LORD ADONIS HOUSE, THE HAREFIELD ACADEMY NORTHWOOD WAY HAREFIELD UB9 6ET

    17709/APP/2026/1124 Submitted 6 May 2026 344m away

    Details pursuant to the discharge of Conditions 17 (Landscape Scheme), 18 (Ecology) and 20 (External Lighting) of planning permission ref. 17709/APP/2023/2673, dated 08-02-2024 (Demolition of former residential school and erection of academic building (Use Class F1) and ancillary structures including heat pump and substation enclosures, construction of a multi-use games area, revised vehicular access, landscaping, car and cycle parking and associated works.)

    Granted Full applications Demolition 41 docs

In Hillingdon

  • 14 LADYGATE LANE RUISLIP HA4 7QU

    Erection of single storey side and rear wraparound extension, a front porch, amendments to fenestration and roof lights to the front, side and rear sloped roof, following the removal of the rear chimney and garden shed. (Description Amended)

    24 Jun 2026 Full applications
  • 21 NORTH AVENUE HAYES UB3 2JE

    Erection of part single storey, part double storey rear extension

    13 Jul 2026 Full applications
  • 32 MANOR ROAD HAYES UB3 2DG

    Erection of a first-floor rear extension.

    1 Jun 2026 Full applications
  • 50 MINET DRIVE HAYES UB3 3JW

    Erection of a part single storey, part two storey extension to the rear

    1 Jul 2026 Full applications
  • 6 SQUIRRELS TRADING ESTATE VIVEASH CLOSE HAYES UB3 4RZ

    Change of use from Class B8 to Class E retail

    8 Jul 2026 Full applications