16 Park Avenue London NW11 7SJ Data via plota.co.uk

Pending 26/3447/192
Extensions & alterations
Council
Barnet 6.2/10
Date received
22 Sept 2026
Date validated
29 Sept 2026
Postcode
NW11 7SJ

Description

Alterations to existing roof extension involving the enlargement of existing rear domer window, 2no. rooflights on dormer roof, 1no. front, 1no. rear facing rooflights and 1no. circular window to gable end Data via plota.co.uk

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Last checked

Decision outlook

Plota predicts a decision between 12 Nov 2026 and 23 Nov 2026, from Barnet's recent extensions.

Day 6 of the 56-day target. Barnet usually decides extensions by day 52.

Day 650 days to the 56-day target
87%decided within 8 weeks
75%approved
1,696decided in the last year

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

Site constraints 5

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 Named permitted development rights are withdrawn here.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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Conservation area about 38 m away: Hampstead Garden Suburb; Inside the Barnet built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 30 September 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England 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 3

Last sold for £1,744,000 in March 2024. Detached house, freehold.

7 March 2024£1,744,000
4 October 2002£770,000
12 October 1995£345,000

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

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Other new applications on this street

16 Jul 2026Approved

25 Park Avenue London NW11 7SL

Roof extension including hip to gable to both sides with gable windows, 3no. dor...

26/2656/HSE
14 Jul 2026Approved

3 Park Avenue London NW11 7SL

Demolition of existing dwellinghouse and construction of new two storey detached...

26/2623/FUL
3 Jul 2026Refused

113 Princes Park Avenue London NW11 0JS

Part single, part two storey rear extension following demolition of existing gro...

26/2520/HSE
21 May 2026Approved

57 Princes Park Avenue London NW11 0JR

2no. single storey rear extension one with a proposed depth of 6.00 metres, maxi...

26/1915/PNH

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29 Sept 2026Pending

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Historical activity at this location

29 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025 Withdrawn
Roof extension involving hip to gable with rear dormer window. Single storey side and rea…
25/4487/192
2025 Approved
Roof extension involving rear dormer window. Single storey side and rear extension insert…
25/3169/192
2025
Single storey side and rear extension insertion of 1no. rooflight. New front hardstanding…
25/0242/HSE
2024 Refused
Single storey rear extension. Alterations to existing garage with changes to fenestration…
24/3493/HSE
Within ~100m

Nearby activity

2025 Approved
9 Park Avenue London NW11 7SL
Single storey rear extension with 1no. rooflight. Alterations to roof above kitchen. Exte…
25/4912/HSE
2025 Approved
Gatepost Lodge 1 Wellgarth Road London NW11 7HP
1 x Dead Cotinus (applicants ref, T2) - Remove. (amended description) Exempt works
TCP/0651/25
2025
Gatepost Lodge 1 Wellgarth Road London NW11 7HP
7 x Cypress (applicants ref. G1) - Cut back by 20%, lifting and reducing, cutting into gr…
TCP/0653/25
2024 Approved
O/s 125 North End Road London NW11 7TA
Installation of 1no. green Virgin Media cabinet
24/5110/LIC
2024 Approved
O/s 1 Park Avenue London NW11 7SL
Installation of 1no. green Virgin Media cabinet
24/5106/LIC
2024 Approved
113 North End Road London NW11 7TA
Single storey rear extension
24/3746/HSE
2024 Approved
8 Park Avenue London NW11 7SJ
Roof extension involving 1.no rear dormer, rebuilding of existing rear outrigger, inserti…
24/3559/HSE
2024
6 The Park London NW11 7SU
Two storey rear extension following demolition of utility and bathroom wing. Alterations…
24/4417/HSE
2024 Approved
129 North End Road London NW11 7HT
1 x False Acacia (applicants ref. T1) - Reduce branches towards the house by 2m to 3m, th…
TPP/0476/24
2024 Approved
105 North End Road London NW11 7TA
Two storey rear infill extension following demolition of the existing ground floor rear e…
24/3344/HSE
2024 Approved
129 North End Road London NW11 7HT
1 x Holly (applicants ref. T2) - Reduce height down to 1.5m to allow more light into the…
TCP/0462/24
2024 Approved
113 North End Road London NW11 7TA
Roof extension with rear dormer windows and 3no. front facing rooflights.
24/3547/192
2024 Refused
113 North End Road London NW11 7TA
Single storey rear extension with 2no rooflights
24/3546/192
2024 Approved
1 Wellgarth Road London NW11 7HP
Replacement of existing windows and doors. Alterations to boundary fence and hedgerow. Ne…
24/2390/HSE
2024 Refused
8 Park Avenue London NW11 7SJ
Roof extension involving 1no. front dormer following demolition of existing dormer, 2no r…
24/2733/HSE
2024 Refused
86 North End Road London NW11 7SY
1 x Yew (applicants ref. T1) Reduce crown by 24 inches (61cm) on all aspects, to return t…
TPP/0340/24
2024 Approved
8 Park Avenue London NW11 7SJ
Part single, part two storey rear extension. Roof extension involving 1no. front dormer f…
24/2056/HSE
2024 Refused
25 Park Avenue London NW11 7SL
Roof extension involving hip to gable to north and south elevations, 2no gable windows to…
24/2004/192
2023 Approved
12 Park Avenue London NW11 7SJ
Erection of trellis above fence to match adjoining property and to reinstate trellis
23/2343/HSE
2022 Approved
60 North End Road London NW11 7SY
Single storey rear extension following demolition of the existing conservatory
22/5523/HSE
2017 Approved
115 North End Road London NW11 7TA
Single storey rear extension
17/1885/192
2016 Approved
91 North End Road London NW11 7TA
Demolition of existing side and rear extension and erection of part single part two store…
16/2202/HSE
2016 Refused
109 North End Road London NW11 7TA
Conversion into 2no self-contained flats following first floor rear extension. Extension…
16/0444/FUL
2016 Approved
119 North End Road London NW11 7TA
Single storey rear extension with a proposed maximum depth of 3.5 metres, eaves height of…
16/00010/PNH
2016 Approved
119 North End Road London NW11 7TA
Roof extension involving rear dormer window with 2no rooflights to front elevation to fac…
16/00002/192
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.