20 Willoughby Road London NW3 1SA Data via plota.co.uk

2026/3657/P - Full Planning Permission New application
Extensions & alterationsSolar & renewables

Proposal

Alterations to existing roof form including increased front and rear roof pitches, alterations to front and rear dormer windows, installation of 3 x rear rooflights and PV panels, and repositioning of lower ground floor entrance door, with associated alterations. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
25 Aug 2026
Decision
Expected by 20 Oct 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision between 14 Oct 2026 and 28 Oct 2026, from Camden's recent extensions.

Documents

View the documents on the council's website ↗

Site constraints 4

Hampstead conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
3 Article 4 directions
Hampstead Conservation Area (excl. Frognal Way) Non-immediate Article 4 · Hampstead Conservation Area (excl. Frognal Way) (various properties) · Basements. Named permitted development rights are withdrawn here.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: Camden 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 Camden built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 11 September 2026. 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.

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Other new applications on this street

24 Aug 2026Pending

50 Willoughby Road London NW3 1RU

Installation of replacement windows and doors on rear elevation

2026/3532/P
4 Aug 2026Pending

50 Willoughby Road London Camden NW3 1RU

The installation of 3 x rooflights on the low-pitched roof portion.

2026/3271/P
14 Jul 2026Approved

30 Willoughby Road London NW3 1RU

DD 5 Day Notice: FRONT GARDEN: 1 x Willow (T1) - Fell to ground level.

2026/2952/T
14 Jul 2026Approved

31 Willoughby Road London NW3 1RT

Replacement rear side extension

2026/2927/P

Nearby new applications

9 Sept 2026Pending

13 Wedderburn Road London NW3 5QS

REAR GARDEN: 1 x Birch (T1) - Crown reduce height and spread back to the previou...

2026/3918/T
9 Sept 2026Pending

42 Netherhall Gardens London NW3 5RG

DD 5 Day Notice FRONT GARDEN: 1 x Cherry (T1) - Fell to ground level.

2026/3922/T
9 Sept 2026Pending

13 Hampstead Hill Gardens London NW3 2PH

Erection of a single storey lower ground floor rear extension following demoliti...

2026/3836/P
8 Sept 2026Pending

240 Haverstock Hill London NW3 2AE

Retrospective application for the retention of the existing kitchen extraction s...

2026/3474/P
8 Sept 2026Pending

45 Heath Hurst Road London NW3 2RU

Installation of 1 no. new additional timber framed double glazed window and repl...

2026/3853/P
8 Sept 2026Pending

6 Pilgrim's Lane London NW3 1SL

REAR GARDEN: 1 x Elder (Sambucus nigra) (T2) - Cut back encroaching lateral grow...

2026/3891/T

Important details

Council
Camden
Application type
Full Planning Permission
Postcode
NW3 1SA
Received
25 Aug 2026
Validated
25 Aug 2026
Ward
Hampstead Town
Case officer
Show
Agent
SM Planning

Decision outlook

Day 20 of the 56-day target. Camden usually decides extensions by day 56.

Day 2036 days to the 56-day target
52%decided within 8 weeks
98%approved
7%go to committee

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

Historical activity at this location

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

Within ~100m

Nearby activity

2023 Withdrawn
32 Willoughby Road London NW3 1RU
Demolition of existing two storey outrigger and replacement with an enlarged two-storey o…
2023/1671/P
2024 Withdrawn
2 And A Half Rudall Crescent London Camden NW3 1RS
Erection of single storey side extension with roof terrace and associated landscaping
2023/4898/P
2024 Approved
58 Rosslyn Hill London NW3 1ND
Display of non-illuminated signage on a retractable canvas awning.
2024/3975/A
2024 Approved
Flat 2nd Floor 23 Carlingford Road London NW3 1RY
Installation of dormer window with double glazed windows on front roof slope. Replacement…
2024/3117/P
2024 Approved
7 Pilgrim's Lane London NW3 1SJ
Replacement boundary wall in rear garden
2024/2415/L
2023 Approved
13 Kemplay Road London NW3 1TA
Erection of a replacement two storey dwelling with basement following demolition of exist…
2023/4050/P
2024 Approved
2nd Floor Flat 23 Carlingford Road London NW3 1RY
Installation of dormer window to front roof slope.
2024/0999/P
2024 Approved
Planet Organic 6 Hampstead High Street London NW3 1PR
3 Tables and 6 Chairs Monday to Saturday - 08:00 -21:00 Sunday 08:30 -21:00 New Applicati…
2024/1563/PVL
2023 Approved
Rosslyn Hill Unitarian Chapel Rosslyn Hill London NW3 1NG
Installation of painted steel gate to south entrance porch.
2024/0430/L
2023 Approved
Rosslyn Hill Unitarian Chapel Rosslyn Hill London NW3 1NG
Installation of painted steel gate to south entrance porch.
2023/5436/P
2023 Approved
48 Rosslyn Hill London NW3 1NH
Replacement of existing ground floor shopfront doors and windows (Part Retrospective).
2023/1778/P
2023 Withdrawn
1 A Willoughby Road London Camden NW3 1RP
Installation of metal fencing and gates to front boundary
2023/5018/P
2023 Approved
17 Carlingford Road London NW3 1RY
REAR GARDEN: 1 x Birch (T1) - Remove small stem growing over garden of number 19 and redu…
2023/5035/T
2023 Approved
23 Carlingford Road London NW3 1RY
REAR GARDEN: 1 x Apple (T1) - Reduce crown by 2.5m.
2023/5038/T
2023 Approved
12 Rosslyn Mews London NW3 1NN
Replacement of existing external spiral stair on 3rd floor with new enclosed staircase le…
2023/4434/P
2023 Approved
48 Rosslyn Hill London NW3 1NH
Replacement of rear glazed roof with new glazed roof (part retrospective).
2023/1777/P
2023 Approved
17 Carlingford Road London NW3 1RY
Erection of a dormer roof extensions to the front and rear elevations with provision of m…
2023/1375/P
2023 Approved
2 Vane Close London NW3 5UP
FRONT GARDEN: 2 x London Planes (Platanus x hispanica) (T1 & T2) - Crown reduce sides whi…
2023/3571/T
2023 Approved
Caffe Nero 1 Hampstead High Street London NW3 1PR
3 Tables, 12 Chairs and 2 Barriers Monday - Sunday 08:00 - 19:00
2023/4184/PVL
2023 Approved
2 Vane Close London NW3 5UN
FRONT GARDEN: 1 x Birch (Betula pendula) (T2) - Reduce height by up to 2m (1m below previ…
2023/3204/T
2018 Approved
18 Willoughby Road London NW3 1SA
FRONT GARDEN: 1x Horse Chestnut - Crown reduction to half way between most recent pruning…
2018/0569/T
2018 Approved
35 Carlingford Road London NW3 1RY
REAR GARDEN: 1 x Horse Chestnut - Fell
2018/0601/T
2018 Approved
17 Kemplay Road London NW3 1TA
Erection of single storey rear extension.
2018/0436/P
2018 Withdrawn
17 Kemplay Road LONDON LONDON NW3 1TA
NL - Proposed rear dormer window extension along with 3 front and 1 rear 'conservation' s…
2018/0864/NEW
2017 Approved
3 Trinity Close Willoughby Road London NW3 1SD
Installation of 1 x rooflight to front roof slope
2017/6507/P
Camden
Planning Authority Score
3.1/10
Poor
#231 of 296 councils
Relevant to this application:
Householder decisions

Camden is slower than most councils at deciding householder applications, ranking #242 out of 296. Householder applications are slightly less likely to be approved here (88%) than the national average (90%).

Slower than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Camden decision statistics
Based on MHCLG data, the year to March 2026
88%
Overall approval rate
Above avg (87%) #149 of 296
88%
Householder approved
Below avg (90%) #215 of 296
49%
Decided in 8 weeks
Below avg (63%) #242 of 296
41%
Extended time limit
Below avg (41%) #158 of 296
90%
Minor dwellings approved
467 decided (1-9 homes)
80%
Major dwellings approved
10 decided (10+ homes)
93%
Change of use approved
46 decided
1,973
Total decisions
234 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings