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Planning application

17 Hawthorne Road Radlett WD7 7BJ

Refused Hertsmere TP/12/1360 Lawful Development Cert. Proposed

Works: Extension

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Proposed 4 metre deep single level conservatory, and a further outbuilding to be used as a Gym at the end of the garden (Application for Certificate of Lawful Development - Proposed)

As published by the council, reference TP/12/1360

Application record

Reference
TP/12/1360
Type
Lawful Development Cert. Proposed
Status
Decided
Decision
Refuse to Grant Certificate
Received
27 Jun 2012
Validated
5 Jul 2012
Decided
17 Aug 2012
Ward
Aldenham East
Parish
Aldenham Parish
Decision by
Delegated Decision
Postcode
WD7 7BJ

Timeline

Dates from the published record

  1. 27 Jun 2012

    Received by Hertsmere

  2. 5 Jul 2012

    Validated

    Checked as complete and ready for consideration.

  3. 17 Aug 2012

    Decision issued: Refuse to Grant Certificate

  4. 9 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Agent on file, registered in London

1 application on PlanIndex

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

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Documents

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

7 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.

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What refusal means

The process from here

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

About lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 7 Hawthorne Road Radlett Hertfordshire WD7 7BJ

    23/0101/HSE Submitted 20 Jan 2023 69m away

    Single storey front, first floor side, part single part two storey rear extension including new basement level with swimming pool, alterations to fenestration and rear terrace at ground floor level.

    Granted Householder Extension Windows or glazing 23 docs
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  • 7 Hawthorne Road Radlett Hertfordshire WD7 7BJ

    24/0824/VOC Submitted 24 Jun 2024 69m away

    Application for variation of condition 2 (plans) to allow for reduction of first floor rear extension and second storey side extension, roof alterations and alterations to fenestration following grant of planning permission 23/0101/HSE.

    Granted Amendments Extension Roofing +1 14 docs
  • 7 Hawthorne Road Radlett Hertfordshire WD7 7BJ

    26/0513/CLP Submitted 14 Apr 2026 70m away

    Erection of outbuilding in rear garden. Certificate of lawful development (Proposed).

    Granted Lawful development 4 docs
  • 7 Hawthorne Road Radlett Hertfordshire WD7 7BJ

    26/0325/HSE Submitted 10 Mar 2026 72m away

    Construction of single storey rear extension and extended raised terrace, with privacy screen and metal handrails to rear brick retaining wall.

    Granted Householder Extension 13 docs
    Small domestic
  • 7 Beech Avenue Radlett Hertfordshire WD7 7DD

    26/0502/DOC Submitted 13 Apr 2026 95m away

    Application for approval of details reserved by condition 4 (landscaping and boundary treatment) of planning permission reference 23/0551/HSE.

    Decided Conditions 7 docs
  • 149 Watling Street Radlett WD7 7NQ

    TP/09/1493 Submitted 1 Sep 2009 103m away

    Installation of 1 no. non-illuminated fascia sign and 2 no. non-illuminated projecting signs (Application for Advertisement Consent).

    Granted Advertising 3 docs

In Hertsmere

  • 26/1258/CLP Awaiting decision

    106 Whitehouse Avenue Borehamwood Hertfordshire WD6 1HE

    Construction of single storey rear extension Certificate of Lawful Development (Proposed).

    1 Sep 2026 Lawful development
  • 26/1247/CLP Awaiting decision

    314 Mutton Lane Potters Bar Hertfordshire EN6 2AX

    Conversion of loft to habitable space including hip to gable roof alterations, rear dormer and 2x front roof lights. Certificate of lawful development (Proposed).

    27 Aug 2026 Lawful development
  • 26/1222/CLP Awaiting decision

    37 Duncan Way Bushey Hertfordshire WD23 2BE

    Conversion of loft to habitable space with associated hip to gable roof alterations, rear dormer, insertion of 3x front rooflights and removal of 2x chimney stacks, with side window at loft level. Certificate of Lawful Development (Proposed).

    24 Aug 2026 Lawful development
  • 26/1220/CLP Awaiting decision

    The Farm House The Green Letchmore Heath Watford Hertfordshire WD25 8ES

    Removal of approximately 1.4m of private garden hedge and installation of an inward-opening pedestrian gate and posts, with a maximum overall height of 1.0 metre above existing ground level, wholly within the property boundary. Certificate of Lawful Development (Proposed).

    24 Aug 2026 Lawful development
  • 26/1171/CLP Awaiting decision

    15 Catsey Woods Bushey Hertfordshire WD23 4HS

    Conversion of loft to habitable space with rear dormer and Juliet balcony, 1x window at loft level to each side, and insertion of 1x rear and 3x front rooflights. Certificate of Lawful Development (Proposed).

    14 Aug 2026 Lawful development