Planning applications in HA4
We hold 409 planning applications for the HA4 postcode area, 156 of them submitted in the past year. 82% of decided applications here were approved. A decision typically takes 56 days. The area is covered by Hillingdon, Brent, Harrow.
Towns and villages in HA4
Councils covering HA4
Recent applications in HA4
Erection of a part single and part two storey front, side and rear extension
Variation of Condition 2 (Approved Plans) of planning permission ref. 3409/APP/2025/1919, dated 12-09-2025 (Erection of a single storey rear extension, partial conversion of garage to habitable use, increase in size of rear dormer, and amendments to fenestration.) to amend to fenestration
Erection of a single storey rear extension.
Single storey side extension and conversion of existing garage into habitable accommodation (Application for a Certificate of Lawful Development for a Proposed Development).
TPO 277 T19 1x Oak to fell.
Conversion of roof space to habitable use to include hip to gable extension, rear dormer, gable end window, and 1x front roof light (Application for a Certificate of Lawful Development for a Proposed Development).
Erection of an outbuilding to the rear garden
Existing use of property as a Home in Multiple Occupation (HMO) (Class C4) (Application for a Certificate of Lawful Development for an Existing Use)
Erection of a single storey rear extension.
Erection of double storey outbuilding with a pitched roof, following the demolition of the existing outbuilding.
Proposed loft conversion including hip to gable side of roof and rear dormer.
TPO 558 T1 1x Lime to reduce height up to 3m and lateral spread on all sides by up to 2.5m.
Modifications to existing main entrance ramp, to provide new handrails and supports. Also ensure brick upstand meets required 150 mm fall protection. Continue existing handrail 450 mm past the end of the existing ramp.
Conversion of roof space to habitable use to include a rear dormer with Juliet balcony, front roof lights conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
Erection of a part single, part two storey extension to the rear.
Erection of a single storey rear extension and steps to rear garden.
Erection of a single storey extension to the rear following the demolition of existing rear conservatory (Application for a Certificate of Lawful Development for a Proposed Development)
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.00 metres, for which the maximum height would be 3.41 metres, and for which the height of the eaves would be 2.56 metres
TPO 106 T76 1x Silver Birch to fell.
Erection of a single storey rear extension
Erection of a single storey front extension, following the demolition of existing front porch.
Non-material amendment to approved plans including reduction of rooflights from two to one and replacement of the approved rear window and three-panel bifold door with a four-panel bifold door to the rear extension.
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development).
Conversion of roof space to habitable use to include a hip to gable extension, rear dormer, rooflights and removal of chimney. Conversion of garage to habitable use and erection of front porch (Application for a Certificate of Lawful Development for a Proposed Development)
Details pursuant to the discharge of Conditions 17 (Contaminated Land) of planning permission ref. 6280/APP/2023/1065, dated 02-08-23 (Erection of a detached bungalow with associated landscaping works following demolition of existing private garages.)
Variation of Condition 2 (Approved Plans) of planning permission ref. 77586/APP/2023/2460, dated 25-03-24 (Demolition of existing single-storey garages and the construction of 4no. 2-bedroom, two-storey houses with associated car parking and landscaping.) to amend external materials, internal dimensions, and fenestrations.
Erection of a single storey side and rear extension.
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights and conversion of roof from hip to gable end with new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)
Installation of a roof over car parking area and enclosure of space between walls and roof, and installation of vehicular sliding access gate.
TPO 476 T2 1x Beech to crown reduce by up to 2m all over.
Conversion of roof space to habitable use to include a side dormer, 1 front roof light, and replacement of existing rear dormer with gable end and new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)
Erection of a rear extension
Erection of a single story extension to the rear (Application for a Certificate of Lawful Development for an proposed Use)
Erection of a single storey extension to the rear, conversion of roof space to habitable use to include a rear dormer and roof lights (Application for a Certificate of Lawful Development for an Proposed Use)
Conversion of garage to habitable use (Application for a Certificate of Lawful Development for a Proposed Development)
Conversion of integral garage to habitable accommodation
Non-material amendment to planning permission ref. 38843/APP/2026/311, dated 31-03-2026 (Erection of a single storey rear extension, a single storey front extension, conversion of garage to habitable space including replacement of garage door with window, and amendments to fenestration.) to include the installation of a rear-facing roof skylight at ground-floor level.
Erection of a new covered shed in storage yard, and removal of telecoms equipment in sublet section of yard.
Details pursuant to the discharge of Condition 7 (Energy Efficiency) of planning permission ref. 12926/APP/2022/1266, dated 30-06-22 (Demolition of existing bungalow and erection of 2 replacement 4-bedroom dwellings with parking and amenity space).
Details pursuant to the discharge of Conditions 7 (Approved Document M, Building Control), 9 (energy efficiency standard), 13 (proposed vehicular access), 14 (kerbs and footway) of planning permission ref. 1788/APP/2022/2935, dated 18-11-22 (Erection of 1 no. detached 4-bed dwelling and 2 no. semi-detached 4-bed dwellings, with associated parking and amenity space.)
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights and conversion of roof from hip to gable end with new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)
Erection of a single storey extension to the rear, following the demolition of existing rear extension
Erection of a single storey side extension.
Details pursuant to the discharge of Conditions 9 (Surface Water Drainage) of planning permission ref. 79635/APP/2025/2209, dated 26-02-26 (Erection of a single storey side and rear extension, following demolition of existing garage.)
Details pursuant to the discharge of Conditions 10 (Management Plan) and 13 (Water Management) of planning permission ref. 6280/APP/2023/1065, dated 02-08-2023 (Erection of a detached bungalow with associated landscaping works following demolition of existing private garages.)
Conversion of roof space to habitable use to include a rear dormer, conversion of roof from hip to gable end, erection of a single storey extension to the rear
Single storey rear extension and patio (following previous prior notification approval - at roof height increased and patio area added)
Erection of a ground floor rear extension and a three-storey extension (with the top floor set-in) above an existing single storey commercial parade to provide 7 residential units (2 x 1-bedroom, 2-person units, 4 x 2-bedroom, 3-person units and 1 x 3-bedroom, 5-person unit), incorporating private amenity space to all proposed residential units and alterations to the existing ground floor commercial premises at no. 17 to create a new self-contained residential access from Victoria Road
Erection of a single storey part side extension, part garage conversion
Variation of Condition 2 (Approved Plans) of planning permission ref. 57311/APP/2023/322, dated 09-03-23 (Demolition of an existing 2-bed bungalow and erection of a new 4-bedroom bungalow with a habitable roof space, including side dormer, raising the ridge of the main roof, roof lights and solar panels.) to amend fenestrations.