20 Clifton Avenue London N3 1BN Data via plota.co.uk

Pending 26/2688/192
Extensions & alterations
Council
Barnet 6.2/10
Date received
20 Jul 2026
Date validated
20 Jul 2026
Postcode
N3 1BN

Description

Roof extension involving hip to gable with rear dormer windows and 4no. front facing rooflights Data via plota.co.uk

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Historical activity at this location

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

Within ~100m

Nearby activity

2025
30 Clifton Avenue London N3 1BN
Erection of a garden room
25/1896/192
2025 Approved
16 Clifton Avenue London N3 1BN
Single storey rear infill extension with 1no. rooflight and alterations to the existing t…
25/0735/HSE
2024 Approved
Pavement Outside 52 Church Crescent London N3 1BJ
Installation of 1no. green Virgin Media cabinet
24/5022/LIC
2024 Approved
Pavement Outside 52 Church Crescent London N3 1BJ
Installation of 1no. green Virgin Media cabinet
24/5028/LIC
2024 Approved
24 Church Crescent London N3 1BG
Erection of raised decking area with associated access steps to garden level and privacy…
24/3336/FUL
2024
32 Clifton Avenue London N3 1BN
Single storey rear extension with 1no. rooflight and new patio area. New window to side e…
24/3767/HSE
2024
42 Church Crescent London N3 1BJ
Roof extension involving partial hip to gable, rear dormer window with Juliette balcony a…
24/1645/192
2023 Approved
34A Clifton Avenue London N3 1BN
Replacement of existing windows to match existing
23/1435/FUL
2022 Refused
Rear Of 26 Dollis Park London N3 1BP
Conversion of the existing garage into a dwellinghouse involving raising of the roof leve…
22/1628/FUL
2022 Approved
30 Clifton Avenue London N3 1BN
Roof extension involving rear dormer window and front and side facing rooflights
22/1884/HSE
2022 Refused
18 Church Crescent London N3 1BG
Single storey rear extension. Creation of basement level with associated lightwell
22/4916/HSE
2022 Approved
26 Clifton Avenue London N3 1BN
Single storey rear extension following removal of existing bay window. Roof extension inv…
22/4172/HSE
2022 Approved
18 Church Crescent London N3 1BG
Single storey rear extension. Creation of basement level with associated lightwell. (Amen…
22/3918/HSE
2022 Approved
18 Church Crescent London N3 1BG
Roof extension involving hip to gable and a rear dormer, 2no rear facing rooflights and 5…
22/3919/192
2022 Approved
18 Church Crescent London N3 1BG
New front hardstanding following removal of the wall and hedge
22/2281/192
2022 Approved
24 Church Crescent London N3 1BG
Conversion of 2no self-contained flats to single family dwelling
22/0374/192
2021 Refused
Rear Of 26 Dollis Park London N3 1BP
Conversion of the existing garage into a dwellinghouse involving single storey front exte…
21/1980/FUL
2021 Approved
21 Clifton Avenue London N3 1BN
Roof extension involving hip to gable, rear dormer window and 2no front facing rooflights
21/3248/192
2021
15 Clifton Avenue London N3 1BN
Conversion of the existing dwelling into 2no self-contained flats
21/3597/FUL
2020 Refused
42 Church Crescent London N3 1BJ
Roof extension involving partial hip to gable, 1no side gable window, rear dormer windows…
20/3092/192
2017 Approved
10 Clifton Avenue London N3 1BN
Roof extension involving rear dormer window, 3no front and 1no side rooflights and new ga…
17/3883/192
2017 Approved
52 Church Crescent London N3 1BJ
Conversion of existing dwelling into 2no self-contained flats involving single storey rea…
17/2314/FUL
2017 Approved
52 Church Crescent London N3 1BJ
Single storey rear extension with a proposed depth of 4 metres from original rear wall, e…
17/0587/PNH
2016 Approved
16A Church Crescent London N3 1BG
Single storey rear extension
16/5972/FUL
2016 Approved
1 Clifton Avenue London N3 1BN
Single storey rear extension with a proposed depth of 5 metres from original rear wall, e…
16/0967/PNH
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 performance
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