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Planning application

17 Ox Lane Harpenden Hertfordshire Al5 4Hf

Decided St Albans 5/2026/0586 Householder

Works: Extension Demolition Small domestic

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

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Erection of a single storey rear and side extensions, internal reconfiguration and demolition of existing detached garage and erection of a new detached garage

As published by the council, reference 5/2026/0586

Application record

Reference
5/2026/0586
Type
Householder
Status
Approved
Decision
DC3 Conditional Permission
Received
24 Mar 2026
Validated
25 Mar 2026
Decided
7 Aug 2026
Ward
Harpenden North & Rural
Parish
Harpenden Town
Decision by
Delegated
Postcode
AL5 4HF

Timeline

Dates from the published record

  1. 24 Mar 2026

    Received by St Albans

  2. 25 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 7 Aug 2026

    Decision issued: DC3 Conditional Permission

  4. 7 Sep 2026

    Added to PlanIndex

Documents

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

23 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

After the decision

The process from here

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

About householder applications

How this application type works

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

Nearby applications

Within 500 metres

  • 22 Ox Lane Harpenden Hertfordshire Al5 4He

    TP/2025/0635 Submitted 1 Dec 2025 57m away

    1. Laurel - 2-3m crown reduction 2. Oak - 2-3m crown reduction and deadwood removal 3. Yew - 1-2m lateral crown reduction on side facing garden at 22 Ox Lane 4. Removal of dead tree. Unknown species. 5. Plum - 2-3m crown reduction (back to previous cuts)

    Decided Trees 2 docs

  • 1 Ox Lane Harpenden Hertfordshire Al5 4Hh

    5/2025/0615 Submitted 28 Mar 2025 151m away

    Two storey front extension, part single and part two storey rear extension with roof lights, garage conversion (part retrospective), alterations to existing openings and installation of solar panels

    Decided Householder Extension Loft or dormer 12 docs
    Small domestic

  • 44A Sauncey Avenue Harpenden Hertfordshire Al5 4Ql

    5/2025/1696 Submitted 15 Sep 2025 158m away

    ADDITIONAL PLAN & AMENDED DESCRIPTION - Demolition of existing 3 bedroom dwelling, garage and conservatory and construction of new 4 bedroom dwelling with parking, landscaping alterations and re-grading of the rear garden with garden outbuilding

    Granted Extension Demolition 34 docs
    Small domestic

  • 18 Fallows Green Harpenden Hertfordshire Al5 4Hd

    5/2026/0992 Submitted 19 May 2026 159m away

    Installation of a timber-built greenhouse in the rear garden

    Decided Householder 14 docs
    Domestic

  • Clarendon Court Clarendon Road Harpenden Hertfordshire Al5 4Pt

    5/2026/0765 Submitted 15 Apr 2026 203m away

    Replacement of current uPVC double-glazed casement windows, side-high windows and external patio doors in all flats and communal areas. Private balcony balustrades will be replaced with architectural perforated metal panels. Existing black metal balustr

    Decided New dwelling Windows or glazing 30 docs

  • 75A Ox Lane Harpenden Hertfordshire Al5 4Ph

    5/2026/0569 Submitted 20 Mar 2026 210m away

    Replacement of existing conservatory roof

    Decided Householder Extension 9 docs
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In St Albans

  • 5/2026/1173 Decided

    6 Longacres St Albans Hertfordshire Al4 0Dr

    Demolition of existing outbuilding and construction of single storey rear extension

    18 Jun 2026 Householder
  • 5/2026/0299 Decided

    12 Rowlatt Drive St Albans Hertfordshire Al3 4Nb

    Demolition of existing side and rear extension and construction of a canopy porch, part single, part two storey front, two storey side and single storey rear extension

    17 Feb 2026 Householder
  • 5/2026/0318 Refused

    7 Ardens Way St Albans Hertfordshire Al4 9Uw

    Demolition of existing side canopy, detached garage, rear patio and garden shed and the construction of two storey front, side and rear extensions, together with part single storey rear extension and a front porch canopy and extension to driveway

    19 Feb 2026 Householder
  • 5/2026/1139 Decided

    50 Fontmell Close St Albans Hertfordshire Al3 5Hu

    Single storey rear extension and side windows with top openers over 1.7m high

    10 Jun 2026 Householder
  • 5/2026/0525 Decided

    11 Hillside Road Harpenden Hertfordshire Al5 4Bs

    Garage conversion, with part roof extension and new front porch extension

    17 Mar 2026 Householder