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Planning application

21 Letchmore Road Radlett Hertfordshire WD7 8HU

Granted Hertsmere 21/0297/HSE Householder Application

Works: Extension Loft or dormer Roofing 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

Part single, part two storey rear extension, conversion of garage to habitable room and alterations to the roof to include raising the ridge height, conversion of loft to habitable room with juliette balcony and 2 rear dormers. (Amended Description 12/05/2021)

As published by the council, reference 21/0297/HSE

Application record

Reference
21/0297/HSE
Type
Householder Application
Status
Decided
Decision
Grant Permission
Received
11 Feb 2021
Validated
11 Feb 2021
Decided
14 Jun 2021
Ward
Aldenham East
Parish
Aldenham Parish
Decision by
Delegated Decision
Postcode
WD7 8HU

Timeline

Dates from the published record

  1. 11 Feb 2021

    Received by Hertsmere

  2. 14 Jun 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, a planning consultancy registered in Barnet

69 applications on PlanIndex · across 5 councils · 85% granted

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Documents

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

14 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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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

  • 21 Letchmore Road Radlett Hertfordshire WD7 8HU

    22/2085/HSE Submitted 14 Dec 2022 0m away

    Installation of air conditioning plant on roof. (Retrospective application)

    Refused Householder 8 docs
    Domestic

  • The Gate House 27A Letchmore Road Radlett Hertfordshire WD7 8HU

    26/0206/HSE Submitted 18 Feb 2026 50m away

    First floor rear and side extension with associated roof works to include extension to habitable space at loft level, insertion of additional rear dormer window, and insertion of 3x roof lights. (AMENDED PLANS RECEIVED: 06/03/2026 - skylight to master bedroom on second floor omitted). (ADDITIONAL INFORMATION RECEIVED: 07/05/2026 - daylight & sunlight assessment).

    Granted Householder Extension Loft or dormer +1 9 docs
    Domestic

  • 26 Letchmore Road Radlett Hertfordshire WD7 8HT

    23/0374/CLP Submitted 7 Mar 2023 75m away

    Outbuilding in rear garden. Certificate of Lawful Development (Proposed).

    Granted Lawful development 5 docs

  • 24A Letchmore Road Radlett WD7 8HT

    TP/11/0044 Submitted 7 Jan 2011 91m away

    Two storey rear extension (Certificate of Lawful Development - Proposed).

    Granted Lawful development Extension 13 docs

  • 9 Letchmore Road Radlett Hertfordshire WD7 8HU

    26/0397/HSE Submitted 25 Mar 2026 123m away

    Conversion of garage to habitable space including removal of garage door with replacement window.

    Granted Householder Windows or glazing 8 docs
    Domestic

  • 26 Woodfield Road Radlett Hertfordshire WD7 8JD

    21/1057/CLP Submitted 17 May 2021 126m away

    Conversion of garage to habitable room. Certificate of Lawful Development (Proposed).

    Granted Lawful development 6 docs

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