7 Holmdene Avenue London NW7 2LY Data via plota.co.uk

26/1616/HSE - Householder Application Approved
Extensions & alterations

Proposal

Alterations and extension to roof to create new crown roof including raising of the existing ridge height, installation of rear and side dormer windows and insertion of rooflights to the front roofslope and flat roof areas. Conversion of existing garage into habitable space involving new walls and flat roof. Single-storey rear extension and alterations to rear patio. Alterations to fenestration including new and amended window openings Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
29 Apr 2026
✓
Validated
30 Apr 2026
✓
Consultation
3 Jun 2026
✓
Approved
3 Jun 2026

Approved on 3 Jun 2026 · Delegated Decision · Last checked 6 Jul 2026

Documents 9

Decision & officer reports 2

PDF DN: APPROVE HSE WITH CONDS Decision Notice · 3 Jun 2026 View ↗ PDF DELEGATED REPORT Report · 3 Jun 2026 View ↗

Plans & drawings 3

PDF EXISTING DRAWINGS Drawing · 2 Jun 2026 View ↗ PDF PROPOSED DRAWINGS Drawing · 1 Jun 2026 View ↗ PDF THE LOCATION PLAN Site Location Plan · 29 Apr 2026 View ↗

Application forms 2

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 29 Apr 2026 View ↗ PDF COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM CIL Document · 29 Apr 2026 View ↗

Consultation & comments 1

PDF COMMENT(FULL) Public Comment · 22 May 2026 View ↗

Other documents 1

IMG SITE NOTICE Photo · 7 May 2026 View ↗

All documents on the council site ↗

Associated applications 2

Site constraints 4

Article 4 direction
Article 4 Small Houses in Multiple Occupation (HMO) Area 1. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Air quality management area: Barnet AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Also on the record
Inside the Barnet built-up area; Public transport access: PTAL 1b (very poor), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Sales history 1

Last sold for £890,000 in March 2006. Detached house, freehold.

28 March 2006£890,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area223 m² (2,400 sq ft)
Energy ratingD (58 out of 100), could reach C
PropertyDetached house, 9 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas, Boiler and underfloor heating, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in January 2025, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Other new applications on this street

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Important details

Council
Barnet
Application type
Householder Application
Postcode
NW7 2LY
Received
29 Apr 2026
Validated
30 Apr 2026
Ward
Mill Hill
Case officer
Show
Target decision
25 Jun 2026
Decision
Approve subject to conditions
Decision date
3 Jun 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Hark Architecture Ltd

How this decision compares

Decided in 34 days from validation, 18 days faster than Barnet's median of 52 for extensions. Approved, as 75% of extensions here are.

87%decided within 8 weeks
75%approved
1,904decided in the last year

Plota live figures for extensions decided by Barnet in the last twelve months, from validation. Barnet decision record →

Consultation & key dates

Alt. reference
PP-14895734
Planning Portal ref
PP-14895734
Neighbours
3 Jun 2026
Consultation
3 Jun 2026
Comments by
28 May 2026
Site or press notice
7 May 2026
Statutory expiry
25 Jun 2026

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025 Approved
10 Holmdene Avenue London NW7 2NA
Single storey rear extension with 2no. rooflights and new patio area and access steps to…
25/2451/HSE
2025 Approved
97 Wise Lane London NW7 2BD
1 x lime tree (A1) - crown reduction by 20%, reducing lateral branches by 1.5 to 2m, remo…
TPP/0084/25
2025 Approved
105 Wise Lane London NW7 2BD
Part single, part two storey rear extension including gabled dormer at first floor level…
25/0237/HSE
2024 Approved
18 Holmdene Avenue London NW7 2NA
Part single, part two storey rear extension with new patio area and associated balustrade…
24/0085/HSE
2023 Approved
1 Parkside London NW7 2LJ
Single storey side extension following demolition of the existing side extension. Convers…
23/1451/HSE
2021 Approved
109 Wise Lane London NW7 2BD
Demolition of the existing dwelling and erection of a two storey plus basement level dwel…
21/5389/FUL
2021 Approved
11 Holmdene Avenue London NW7 2LY
Raising of height of existing side projection, alterations to roof form involving crown r…
21/4529/HSE
2021 Approved
97 Wise Lane London NW7 2BD
1 x Lime and 1 x Oak (applicant's ref. T1 and T2) - Reduce by 25% and reshape. Standing i…
TPP/0580/21
2021 Approved
44 Copthall Drive London NW7 2NB
Part single, part two storey side and rear extension. Conversion of garage into habitable…
21/1575/HSE
2021
97 Wise Lane London NW7 2BD
1 x Lime (applicant's ref. T1) - Crown reduction by 25%, reducing lateral branches by 1.5…
TPP/0660/21
2021 Approved
11 Holmdene Avenue London NW7 2LY
Two storey rear extension. Conversion of the existing garage into habitable room
21/2481/HSE
2021 Approved
19 Holmdene Avenue London NW7 2LY
1 x Oak (applicant's ref. T1) - Remove epicormic growth on main stem to where main crown…
TPP/0244/21
2021 Approved
105 Wise Lane London NW7 2BD
1 x Yew (marked as Area A15 on applicant's plan) - Reduce crown by 15%. Standing in Area…
TPP/0066/21
2020 Withdrawn
42 Copthall Drive London NW7 2NB
Demolition of the existing dwelling and erection of a new two storey dwelling
20/4531/OUT
2020 Approved
99 Wise Lane London NW7 2BD
1 x Oak (applicant's ref. T2) - 15% leaf area reduction. Standing in area A15 of Tree Pre…
TPP/0004/20
2019 Decided
19 Holmdene Avenue London NW7 2LY
1 x Oak (applicant's ref. T1- as identified in the annotated photographs submitted by the…
TPP/0675/19
2018 Approved
5 Holmdene Avenue London NW7 2LY
Single storey side and rear extension (amended description).
18/5205/192
2018 Approved
19 Holmdene Avenue London NW7 2LY
Single storey side extension with installation of additional French doors to rear elevati…
18/1878/HSE
2018 Approved
16 Holmdene Avenue London NW7 2NA
Demolition of existing outbuildings and erection of a part single, part two storey side e…
18/1676/HSE
2017 Approved
105 Wise Lane London NW7 2BD
1 x Yew (applicant's ref. G1) - Reduce branches overhanging public footpath/pavement back…
TPP/0865/17
2017 Approved
40 Copthall Drive London NW7 2NB
Single storey rear extension. Roof extension involving 1No. rear dormer window and 1No. s…
17/4393/192
2017 Withdrawn
8 Holmdene Avenue London NW7 2NA
Single storey rear extension
17/1983/HSE
2017 Approved
13 Holmdene Avenue London NW7 2LY
Demolition of existing house and erection of 1no two storey plus rooms in roofspace detac…
17/0679/FUL
2017 Approved
13 Holmdene Avenue London NW7 2LY
Demolition of existing house and erection of 1no two storey plus rooms in roofspace detac…
17/0679/HSE
2016 Approved
13 Holmdene Avenue London NW7 2LY
Demolition of existing house and erection of 1no three-storey detached dwelling house
16/5738/HSE
Barnet
Planning Authority Score
6.2/10
Average
#90 of 296 councils
Relevant to this application:
Householder decisions

Barnet is faster than most councils at deciding householder applications, ranking #42 out of 296. Only 25% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Barnet is also one of the strictest councils - it refuses more householder applications than almost any other, with only 82% approved vs 90% nationally.

One of the strictest councils
only 82% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Barnet decision statistics
Based on MHCLG data, the year to March 2026
75%
Overall approval rate
Below avg (87%) #285 of 296
82%
Householder approved
Below avg (90%) #264 of 296
79%
Decided in 8 weeks
Above avg (63%) #42 of 296
25%
Extended time limit
Below avg (41%) #29 of 296
55%
Minor dwellings approved
319 decided (1-9 homes)
90%
Major dwellings approved
21 decided (10+ homes)
41%
Change of use approved
132 decided
2,541
Total decisions
625 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.