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Planning application

40 Devereux Drive Watford WD17 3DE

Granted Watford 26/00259/FULH Full householder

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

Proposal

Installation of a domestic air-conditioning system to an existing dwelling, comprising six internal wall-mounted units connected to two external condenser units located externally. Unit 1- MHI FDC100VNP-W 10kW O/D R32 1ph. Outdoor unit (living and kitchen) Unit 2- MHI SCM125ZM-S Multi Outdoor 12.5kW. R410 Outdoor unit 12.5 kw. The works include installation of associated pipework, electrical connections, and minor penetrations through external walls for services (RETROSPECTIVE)

As published by the council, reference 26/00259/FULH

Application record

Reference
26/00259/FULH
Type
Full householder
Status
Approved
Decision
Granted As published: Conditional Planning Permission
Received
26 Mar 2026
Validated
5 May 2026
Decided
5 Aug 2026
Ward
Park
Decision by
Delegated Decision
Postcode
WD17 3DE

Site history

Applications at this address on the Watford register

This site has had 2 applications since 2025: 2 approved, 0 refused.

  • 25/00256/FULH Granted

    40 Devereux Drive Watford WD17 3DE

    Erection of two storey front and rear extensions. Single storey rear and roof conversion.

    Decided 13 May 2025 Householder

Timeline

Dates from the published record

  1. 26 Mar 2026

    Received by Watford

  2. 5 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 24 Jul 2026

    Added to PlanIndex

  4. 5 Aug 2026

    Decision issued: Conditional Planning Permission

  5. 9 Aug 2026

    Status changed to Pending Decision

    Previously Pending consideration.

Documents

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

12 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.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Watford granted permission on 5 August 2026, 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 householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 40 Devereux Drive Watford WD17 3DE

    25/00256/FULH Submitted 19 Mar 2025 50 yards away

    Erection of two storey front and rear extensions. Single storey rear and roof conversion.

    Granted Householder Extension 13 docs
    Small domestic

  • 14 Devereux Drive Watford Hertfordshire WD17 3DE

    22/01133/TPO Submitted 22 Sep 2022 50 yards away

    Works to trees under TPO.225 A1 - Red Maple rear of garden to remove the two lower branches that have crossed and overgrown.

    Granted Trees 6 docs

  • 56 Devereux Drive Watford WD17 3DE

    22/00086/TPO Submitted 24 Jan 2022 50 yards away

    Works to trees under TPO.226 - A1 of the order protects all trees at the property. Removal of four conifers (A,B,C and D) a small Magnolia within the rear garden, and to cut back overhang from neighbours tree in line with the boundary and the removal of a small prunus within the front garden.

    Granted Trees 6 docs

  • 78 Devereux Drive Watford WD17 3DE

    20/01021/TPO Submitted 28 Sep 2020 50 yards away

    Works to trees under TPO.226 (Birch tree within area A1) 100% growth prune back to previous points with no structural change to main structure of tree due to tree being damaged and split.

    Granted Trees 7 docs

  • 42 Devereux Drive Watford WD17 3DE

    21/00393/TPO Submitted 17 Mar 2021 50 yards away

    Works to trees under TPO no.225 - retrospective application to fell tree, removal of 2no. trees to northern corner of rear garden, removal of Elder tree.

    Split decision Trees 13 docs

  • 36 Devereux Drive Watford WD17 3DE

    24/00291/LDC Submitted 26 Mar 2024 50 yards away

    Lawful Development Certificate for the erection of an outbuilding to the rear garden of a dwellinghouse, a purpose incidental to the enjoyment of the dwellinghouse, as per Class E.

    Granted Lawful development 10 docs
    Small domestic

In Watford

  • 26/00644/FULH Granted

    16 Garden Close Watford Hertfordshire WD17 3DP

    Erection of a two storey side extension with new two storey gables entrance atrium and front two-storey bay. Single storey side extension to left hand side to house the new garage and single storey rear infill extension no more than 6m`s deep from the original wall.

    Received 14 Aug, published by the council 22 Aug 2026 Householder
  • 26/00754/FULH Awaiting decision

    498 Whippendell Road Watford WD18 7QJ

    Erection of a ground floor wrap around extension, plus front porch.

    Received 28 Sep, published by the council 7 Oct 2026 Householder
  • 26/00759/FULH Awaiting decision

    Gorran Haven Trevellance Way Watford WD25 0LY

    Erection of a double storey side and rear extensions and a single storey front extension.

    Received 28 Sep, published by the council 7 Oct 2026 Householder
  • 26/00752/FULH Awaiting decision

    3 East Drive Watford Hertfordshire WD25 0AH

    Erection of single storey side extension and conversion of existing garage into habitable room

    Received 28 Sep, published by the council 1 Oct 2026 Householder
  • 26/00756/FULH Awaiting decision

    40 Capel Road Watford WD19 4AE

    Erection of single storey rear extension

    Received 28 Sep, published by the council 1 Oct 2026 Householder