Planning application
30 Mount Stewart Avenue, Harrow, HA3 0JP
Works: Extension Loft or dormer Domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Proposed erection of front extension to garage, part first floor front extension and side to rear extension, rear dormer extension and 2x rooflights to dwellinghouse
As published by the council, reference 26/0123
Application record
- Reference
- 26/0123
- Type
- Householder
- Status
- Decided
- Decision
- Granted As published: Permission Granted
- Received
- 19 Jan 2026
- Validated
- 9 Feb 2026
- Decided
- 8 Apr 2026
- Ward
- Kenton
- Decision by
- Delegated Team Manager
- Postcode
- HA3 0JP
Site history
Applications at this address on the Brent register
This site has had 4 applications since 2025: 3 approved, 1 refused.
-
25/2715 Granted
30 Mount Stewart Avenue, Harrow, HA3 0JP
Demolition of existing shed and erection of single-storey plant room and outbuilding in rear garden of dwellinghouse
-
25/2711 Refused
30 Mount Stewart Avenue, Harrow, HA3 0JP
Demolition of existing front porch and proposed erection of front porch extension to dwellinghouse
-
25/2712 Granted
30 Mount Stewart Avenue, Harrow, HA3 0JP
Variation of condition 2 (Approved drawings) to allow Installation of 1x side and 1x rear rooflights Installation of 1x side window , of Householder planning permission application reference 25/0498 dated 14/05/2025 for Proposed part front, rear and side extension to the first floor, rear dormer extension, and enlargement of the garage door windows to dwellinghouse (Revised Description)
Timeline
Dates from the published record
-
19 Jan 2026
Received by Brent
-
9 Feb 2026
Validated
Checked as complete and ready for consideration.
-
8 Apr 2026
Decision issued: Permission Granted
-
10 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Studio 136 Architects Ltd Agent, an architecture practice registered in Berkhamsted
Active · incorporated 2000 · Berkhamsted
406 applications on PlanIndex · across 32 councils · 79% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
9 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 documentsWhat this grant of permission means
Brent granted permission on 8 April 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
-
18 Mount Stewart Avenue, Harrow, HA3 0JP
Certificate of lawfulness for proposed conversion of garage into habitable room to dwellinghouse
Granted Lawful development 6 docsDomestic -
30 Mount Stewart Avenue, Harrow, HA3 0JP
Demolition of existing shed and erection of single-storey plant room and outbuilding in rear garden of dwellinghouse
Granted Householder Demolition 8 docsSmall domestic -
30 Mount Stewart Avenue, Harrow, HA3 0JP
Demolition of existing front porch and proposed erection of front porch extension to dwellinghouse
Refused Householder Extension Demolition 7 docsSmall domestic -
30 Mount Stewart Avenue, Harrow, HA3 0JP
Variation of condition 2 (Approved drawings) to allow Installation of 1x side and 1x rear rooflights Installation of 1x side window , of Householder planning permission application reference 25/0498 dated 14/05/2025 for Proposed part front, rear and side extension to the first floor, rear dormer extension, and enlargement of the garage door windows to dwellinghouse (Revised Description)
Granted Amendments Extension Loft or dormer +1 5 docsDomestic -
2 Mount Stewart Avenue, Harrow, HA3 0JP
Details pursuant to condition 4 (materials) of Householder reference 19/2452 dated 18 September, 2019, for Proposed two storey side extension and front porch to dwellinghouse
Refused Conditions Extension 7 docsSmall domestic -
2 Mount Stewart Avenue, Harrow, HA3 0JP
Details pursuant to condition 4 (materials) of Householder reference 19/2452 dated 18 September, 2019, for Proposed two storey side extension and front porch to dwellinghouse
Granted Conditions Extension 5 docsSmall domestic
Other householder applications
In Brent
-
26/2300 Awaiting decision
22 Plympton Avenue, London, NW6 7TJ
Proposed single-storey side infill extension, replacement of ground floor rear door with window, and replacement of ground floor rear windows with sliding doors to dwellinghouse
-
26/2292 Awaiting decision
116 Stag Lane, Edgware, HA8 5LL
Demolition of existing side store and proposed single store side to rear extension, first floor part side and rear extension, front porch extension, hip to gable extension, rear dormer window with 4x front rooflights and removal of chimney stack to the dwellinghouse.
-
26/2264 Awaiting decision
19 Littleton Road, Harrow, HA1 3SY
Proposed demolition of existing garage, single storey side extension and single storey rear extension, and erection of a two-storey side extension, part single and part two storey rear extension, 1x side and 1x rear dormer extension, conversion of garage into habitable space with replacement of garage door with window, alteration to front, rear and side fenestration and removal of chimney to dwellinghouse.
-
26/2262 Awaiting decision
1 Chestnut Grove, Wembley, HA0 2LX
Demolition of existing conservatory, part two storey rear extension, single storey structure to side extension & front porch and erection of single-storey side to rear extension, erection of first floor rear extension, alterations to raised patio, addition of hipped roof to first-floor side extension, 1x front & 1x rear rooflight, replacement of roof tiles, alterations to fenestrations, rendering to elevations, front porch canopy with pillars, new front door & new garage door to dwellinghouse
-
26/2260 Awaiting decision
19 Mitchell Way, London, NW10 0PT
Proposed two storey rear extension and front porch extension with canopy to dwellinghouse.