Planning application
40 Devereux Drive Watford WD17 3DE
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
- 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.
Timeline
Dates from the published record
-
26 Mar 2026
Received by Watford
-
5 May 2026
Validated
Checked as complete and ready for consideration.
-
24 Jul 2026
Added to PlanIndex
-
5 Aug 2026
Decision issued: Conditional Planning Permission
-
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.
Trade members open them from here.
Open the documentsWhat 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 500 metres
-
40 Devereux Drive Watford WD17 3DE
Erection of two storey front and rear extensions. Single storey rear and roof conversion.
Granted Householder Extension 13 docsSmall domestic -
56 Devereux Drive Watford WD17 3DE
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
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
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
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 docsSmall domestic -
46 Devereux Drive Watford WD17 3DE
Lawful Development Certificate for a single story rear extension - 3.85m in projection with a flat roof and a roof lantern.
Granted Lawful development Extension Windows or glazing 5 docs
Other householder applications
In Watford
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26/00712/FULH Awaiting decision
32 Gade Avenue Watford Hertfordshire WD18 7LG
Erection of a single storey rear extension and internal alterations.
-
26/00491/FULH Granted
88 High Road Watford WD25 7LJ
Retrospective planning application for timber framed cantilevered garden barbecue canopy with roof tiles to match existing
-
26/00559/FULH Granted
157 Cassiobury Drive Watford WD17 3AL
Proposed roof alteration involving double hip-to-gable conversion; erection of a rear crown-roof dormer; erection of a front dormer; installation of 4 x roof lights on the front and front/side roof slope; installation of new windows to the front, rear and side; installation of a side door to the ground floor; changes to finish materials; internal alterations.
-
26/00550/FULH Granted
39 The Ridgeway Watford WD17 4TH
Proposed roof alteration and conversion of loft into habitable room with roof lights.
-
26/00601/FULH Granted
28 Oakdene Road Watford WD24 6RW
Erection of first floor rear extension