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Planning application

29 Cowley Hill Borehamwood Hertfordshire WD6 5LF

Granted Hertsmere 21/0688/HSE Householder Application

Works: Extension Windows or glazing 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

Conversion of garage to habitable space, construction of first floor side extension and alterations to fenestration.

As published by the council, reference 21/0688/HSE

Application record

Reference
21/0688/HSE
Type
Householder Application
Status
Decided
Decision
Grant Permission
Received
29 Mar 2021
Validated
29 Mar 2021
Decided
24 May 2021
Ward
Borehamwood Cowley Hill
Parish
Elstree & Borehamwood Town Council
Decision by
Delegated Decision
Postcode
WD6 5LF

Timeline

Dates from the published record

  1. 29 Mar 2021

    Received by Hertsmere

  2. 24 May 2021

    Decision issued: Grant Permission

  3. 9 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Agent on file, an architecture practice

26 applications on PlanIndex · across 10 councils · 60% granted

Trade members see who it is, their full track record, and every application they have filed.

See who's behind it

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 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

  • 127 Hartforde Road Borehamwood Hertfordshire WD6 5JR

    26/0705/CLP Submitted 22 May 2026 67m away

    78% historically approved · decision due ~17 Jul

    Single storey rear extension. Certificate of Lawful Development (Proposed).

    Decided Lawful development Extension 6 docs
    Small domestic
  • 100 Hartforde Road Borehamwood Hertfordshire WD6 5JS

    26/1092/CLP Submitted 4 Aug 2026 68m away

    78% historically approved · decision due ~29 Sep

    Single storey rear extension. Conversion of loft to habitable space including rear dormer and 4x roof lights. Front porch. Rear terrace. Replacement of front facing windows. Certificate of lawful development (Proposed).

    Awaiting decision Lawful development Extension Loft or dormer +1 3 docs
    Small domestic
  • 92 Hartforde Road Borehamwood Hertfordshire WD6 5JS

    21/1431/PD42 Submitted 9 Jul 2021 95m away

    Construction of single storey rear extension. Depth 6m, Height 3m, Eaves 3m.

    Granted Prior approval Extension 5 docs
    Small domestic
  • 92 Hartforde Road Borehamwood Hertfordshire WD6 5JS

    25/0432/FUL Submitted 20 Mar 2025 95m away

    84% historically approved · decision due ~12 Jun

    Change of use from a residential dwelling (Class C3) to a residential home for vulnerable young people (Class C2) with 24-hour supervised care and tailored support to promote stability and development. Construction of outbuilding with basesment in the rear garden. (ADDITIONAL PLANS RECEIVED: 29/05/2025 - plans of the proposed outbuilding) (ADDITIONAL DOCUMENT: 11/06/2025, 04/09/2025 & 08/05/2026 - planning statement and flood risk assessment and surface water drainage strategy).

    Awaiting decision Full applications 25 docs
    Small domestic
  • 7 Delamere Road Borehamwood Hertfordshire WD6 5AG

    24/1538/FUL Submitted 27 Nov 2024 110m away

    84% historically approved · decision due ~6 Feb

    Demolition of existing outbuilding to facilitate construction of replacement outbuilding with pitched roof, 5x rooflights and basement level to include 5x sky-lights. Construction of separate stepped entrance to basement level at rear. Removal of existing tree and replacement with an apple tree.

    Awaiting decision Full applications Loft or dormer Demolition +1 17 docs
  • 8 Oddesey Road Borehamwood Hertfordshire WD6 5JP

    22/1952/HSE Submitted 22 Nov 2022 116m away

    Construction of a first floor side extension.

    Granted Householder Extension 10 docs
    Domestic

In Hertsmere

  • 26/1262/HSE Awaiting decision

    Roundbush House Round Bush Lane Aldenham Watford Hertfordshire WD25 8BG

    Construction of attached double garage with pitched roof.

    1 Sep 2026 Householder
  • 26/1260/HSE Awaiting decision

    26 Caishowe Road Borehamwood Hertfordshire WD6 5JA

    Demolition of existing outbuilding to facilitate construction of single storey side and rear extension.

    1 Sep 2026 Householder
  • 26/1255/HSE Awaiting decision

    33 Coldharbour Lane Bushey Hertfordshire WD23 4NU

    Demolition of rear conservatory and existing two storey side extension; construction of part single, part two storey side and rear extension and two storey front extension with relocation of front entrance; conversion of loft to habitable space with associated hip to gable roof extensions, rear dormer with 2x Juliette balconies and insertion of 2x front and 4x side rooflights; 3x rear Juliette balconies at first floor level, alterations to side bay extension, alterations to fenestration and removal of 2x chimney stacks.

    28 Aug 2026 Householder
  • 26/1253/HSE Awaiting decision

    159 Arundel Drive Borehamwood Hertfordshire WD6 2LZ

    Construction of single storey rear extension with pitched roof and 3x rooflights, and alterations to fenestration.

    28 Aug 2026 Householder
  • 26/1250/HSE Awaiting decision

    3 The Walk Potters Bar Hertfordshire EN6 1QL

    Single storey side extension following demolition of existing detached garage and shed.

    28 Aug 2026 Householder