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Planning application

100 Penrose Avenue Carpenders Park Watford Hertfordshire WD19 5AA

Granted Three Rivers 25/1590/CLPD Certificate of Lawfulness - Proposed Use

Works: Extension Loft or dormer

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Certificate of Lawfulness Proposed Development: Loft conversion including hip to gable roof extension with rear dormer

As published by the council, reference 25/1590/CLPD

Application record

Reference
25/1590/CLPD
Type
Certificate of Lawfulness - Proposed Use
Status
Decided
Decision
approved
Received
17 Sep 2025
Validated
17 Sep 2025
Decided
10 Nov 2025
Ward
Carpenders Park
Parish
Watford Rural Parish Council
Decision by
Delegated Decision
Postcode
WD19 5AA

Site history

Applications at this address on the Three Rivers register

This site has had 6 applications since 2024: 2 approved, 2 refused.

  • 26/1275/FUL Awaiting decision

    100 Penrose Avenue Carpenders Park Watford Hertfordshire WD19 5AA

    Construction of single storey rear extension; construction of new front porch; hip to gable roof extension with increase in ridge height and removal of chimneys; raised patio; internal alterations and alterations to fenestration.

    Submitted 10 Aug 2026 Full applications
  • 25/1627/FUL Refused

    100 Penrose Avenue Carpenders Park Watford Hertfordshire WD19 5AA

    Demolition of existing garage and construction of single storey rear extension and raised rear patio with stepped access and glass balustrading, erection of front porch

    Decided 26 Nov 2025 Full applications
  • 25/1116/FUL Refused

    100 Penrose Avenue Carpenders Park Watford Hertfordshire WD19 5AA

    Construction of single storey rear extension, with alterations to rear patio including glass balustrading and steps; installation of 3 no. windows to side elevation

    Decided 15 Sep 2025 Full applications
  • 25/1087/FUL Withdrawn

    100 Penrose Avenue Carpenders Park Watford Hertfordshire WD19 5AA

    Loft conversion including hip-to-gable roof extension with rear dormer including Juliet Balcony, front dormer windows, erection of front porch

    Decided 15 Sep 2025 Full applications
  • 24/0600/FUL Granted

    100 Penrose Avenue Carpenders Park Watford Hertfordshire WD19 5AA

    Demolition of existing garage; construction of single storey rear extension with raised rear patio; loft conversion including increase in ridge height with hip to gable roof extension; alterations to driveway.

    Decided 19 Jun 2024 Full applications

Timeline

Dates from the published record

  1. 17 Sep 2025

    Received by Three Rivers

  2. 10 Nov 2025

    Decision issued: approved

  3. 19 Aug 2026

    Added to PlanIndex

Documents

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

18 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 this grant of permission means

Three Rivers granted permission on 10 November 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 100 Penrose Avenue Carpenders Park Watford Hertfordshire WD19 5AA

    25/1627/FUL Submitted 22 Sep 2025 1m away

    Demolition of existing garage and construction of single storey rear extension and raised rear patio with stepped access and glass balustrading, erection of front porch

    Refused Full applications Extension Demolition 17 docs
    Small domestic
  • 100 Penrose Avenue Carpenders Park Watford Hertfordshire WD19 5AA

    24/0600/FUL Submitted 15 Apr 2024 7m away

    Demolition of existing garage; construction of single storey rear extension with raised rear patio; loft conversion including increase in ridge height with hip to gable roof extension; alterations to driveway.

    Granted Full applications Extension Loft or dormer +2 16 docs
    Small domestic
  • 100 Penrose Avenue Carpenders Park Watford Hertfordshire WD19 5AA

    25/1116/FUL Submitted 30 Jun 2025 8m away

    Construction of single storey rear extension, with alterations to rear patio including glass balustrading and steps; installation of 3 no. windows to side elevation

    Refused Full applications Extension Windows or glazing 18 docs
    Small domestic
  • 100 Penrose Avenue Carpenders Park Watford Hertfordshire WD19 5AA

    25/1087/FUL Submitted 25 Jun 2025 8m away

    Loft conversion including hip-to-gable roof extension with rear dormer including Juliet Balcony, front dormer windows, erection of front porch

    Withdrawn Full applications Extension Loft or dormer +1 18 docs
    Small domestic
  • 108 Penrose Avenue Carpenders Park Hertfordshire WD19 5AA

    22/1842/RSP Submitted 4 Oct 2022 38m away

    Retrospective: Construction of steps and raised decking over existing rear patio

    Granted Amendments 9 docs
  • 108 Penrose Avenue Carpenders Park Hertfordshire WD19 5AA

    22/0455/RSP Submitted 11 Mar 2022 39m away

    Part Retrospective: Construction of raised decking to rear including raising of existing rear extension roof with alterations to rear fenestration, alterations to boundary treatment and erection of privacy screen

    Refused Amendments Extension Windows or glazing 10 docs

In Three Rivers

  • 26/0460/CLED Granted

    Annexe Hart Hall Hyde Lane Nash Mills Hemel Hempstead Hertfordshire HP3 8SA

    Certificate of Lawfulness Existing Use: Use of annexe as an independent dwelling

    19 Mar 2026 Lawful development
  • 26/0724/CLED Granted

    70 The Mead Carpenders Park Watford Hertfordshire WD19 5BU

    Certificate of Lawfulness Existing Use: Use of annexe as a separate dwelling

    5 May 2026 Lawful development
  • 25/1151/CLED Refused

    Unit 6 Century Court Tolpits Lane Watford Hertfordshire

    Certificate of Lawfulness Existing Use: Use of property as single dwellinghouse (Use Class C3)

    4 Jul 2025 Lawful development
  • 26/0736/CLPD Granted

    45 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3DS

    Certificate of Lawfulness Proposed Development: Loft conversion including hip to gable roof extension with rear juliet dormer and window, front rooflights, side window

    7 May 2026 Lawful development
  • 26/0631/CLPD Granted

    Clovelly Bell Lane Bedmond Abbots Langley Hertfordshire WD5 0QS

    Certificate of Lawfulness Proposed Development: Loft conversion including hip to dutch hip roof extension, rear juliet dormer with windows

    20 Apr 2026 Lawful development