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Planning application

12 Ridge Avenue Harpenden Hertfordshire Al5 3Lu

Decided St Albans 5/2021/0176 Householder

Works: Extension Loft or dormer 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

Part single part two storey side and rear extension in place of existing garage and store, rear dormer, rear patio, single storey front extension

As published by the council, reference 5/2021/0176

Application record

Reference
5/2021/0176
Type
Householder
Status
Approved
Decision
DC3 Conditional Permission
Received
22 Jan 2021
Validated
19 Feb 2021
Decided
20 Jun 2021
Ward
Harpenden North
Parish
Harpenden Town
Decision by
Delegated
Postcode
AL5 3LU

Timeline

Dates from the published record

  1. 22 Jan 2021

    Received by St Albans

  2. 19 Feb 2021

    Validated

    Checked as complete and ready for consideration.

  3. 20 Jun 2021

    Decision issued: DC3 Conditional Permission

  4. 21 Aug 2026

    Added to PlanIndex

Documents

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

16 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

  • 19 Wells Close Harpenden Al5 3Lq

    TP/2017/0441 Submitted 4 Sep 2017 86m away

    T21 Oak - Reduce crown by 25%. Reason - To maintain crown size in a limited area, increase light into the garden and maintain crown health.

    Granted Trees 2 docs

  • Twin Oaks 13 Wells Close Al5 3Lq

    TP/2017/0317 Submitted 23 Jun 2017 86m away

    T29 Oak - Reduce by 2-3m back to previous reduction points. Reason - To allow more light into the garden and maintain previous management process.

    Granted Trees 2 docs

  • 5 Mayfield Close Harpenden Hertfordshire Al5 3Lg

    5/2017/2644 Submitted 19 Sep 2017 160m away

    First floor rear extension and raising and extensions to roof with rooflights to create habitable roof accommodation

    Refused Householder Extension Loft or dormer 9 docs
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  • 1 Mayfield Close Harpenden Hertfordshire Al5 3Lg

    TP/2026/0117 Submitted 12 Mar 2026 160m away

    Trees: T13,T14,T15 Three Lime trees (Tilia spp.) Specification of Works: Repollard the three Lime trees by reducing all regrowth back to the previous established pollard points (knuckle points), returning the trees to their historic pollard framework. Th

    Granted Trees 3 docs

  • 8 Ridgewood Gardens Harpenden Hertfordshire Al5 3Nn

    5/2026/0451 Submitted 9 Mar 2026 167m away

    Proposed front garage conversion and adaptions and additions to link to main house with gable fronted roof. Proposed solar panels to roofs

    Decided Householder 20 docs
    Small domestic

  • 5 Ridgewood Gardens Harpenden Hertfordshire Al5 3Nn

    5/2017/2665 Submitted 20 Sep 2017 167m away

    Non Material Amendment - Relocation of front door with new door and window to planning permission 5/2017/0842 dated 23/05/2017 for the Single storey and link extensions, alterations to openings, rooflights and garage conversion

    Granted Amendments Extension Loft or dormer +1 5 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