11 Calton Avenue London Southwark SE21 7DE Data via plota.co.uk

26/AP/2014 Awaiting decision
Extensions & alterations

Proposal

Certificate of lawfulness (proposed) for removal of existing rear extension and construction of a new ground floor 3m rear extension. Data via plota.co.uk

Track application Save this application and get an email when its status or decision changes. Alerts nearby Get email alerts for new planning applications near this address.
View original council record ↗

Application progress

✓
Received
9 Jul 2026
✓
Validated
10 Jul 2026
Decision
Awaiting decision

This application is under consideration - no decision has been issued yet.

Documents

View the documents on the council's website ↗

Other new applications on this street

33 Calton Avenue London Southwark SE21 7DE

Tree ID -Common Name Work Task Description 7874 Common Lime Crown Lift crown lif...

26/AP/1314 - 7 May 2026

20 Calton Avenue London Southwark SE21 7DQ

5 DAY NOTIFICATION: 3917 Tree of heaven Deadwood > 5cm Remove major deadwood 392...

26/AP/1965 - 7 Jul 2026

10B Calton Avenue London Southwark SE21 7DQ

Works to tree with a TCA: T1- 3908 Smokebush (Crown Reduction - Reduce north eas...

26/AP/1312 - 7 May 2026

Parish Office 40 Calton Avenue London Southwark SE21 7DG

T1 Gladitsia, T2 Prunus and T3 Holly - Fell and treat stumps to prevent regrowth...

26/AP/0349 - 5 Feb 2026

Nearby new applications

169 Half Moon Lane London Southwark SE24 9JG

Construction of a single-storey rear side infill extension and roof extension ov...

26/AP/2186 - 24 Jul 2026

17 Court Lane Gardens London Southwark SE21 7DZ

Proposed front garden work comprising installation of Air Source Heat Pump, scre...

26/AP/2171 - 22 Jul 2026

11 Roseway London Southwark SE21 7JT

Five day notification for tree works: Removal of dead Yew tree located in the re...

26/AP/2059 - 14 Jul 2026

18 Village Way London Southwark SE21 7AN

Works to Trees in a Conservation Area: The works are part of a regular maintenan...

26/AP/2022 - 10 Jul 2026

85 Burbage Road London Southwark SE24 9HD

Works to tree with a TCA: T2 Oak - reduce height by 1.5 meters taking back to su...

26/AP/1993 - 8 Jul 2026

70 Dulwich Village London Southwark SE21 7AJ

Continued use of first floor as beauty therapy salon LBS Reg 92-52

92/AP/0052 - 8 Jul 2026

Important details

Council
Southwark
Postcode
SE21 7DE
Received
9 Jul 2026
Validated
10 Jul 2026
Target decision
3 Sept 2026

Historical activity at this location

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

This property

Previous applications at this address

2024 Approved
Construction of a single-storey side and rear extension and rear dormer roof extension
24/AP/2097
Within ~100m

Nearby activity

2025 Approved
37 Calton Avenue London Southwark SE21 7DE
5 day notification: T1 (Walnut): up to 4m lateral reduction retaining as much leaf mass a…
25/AP/2115
2025
1B Court Lane London Southwark SE21 7DH
Construction of 1no. self-build two-bedroom dwellinghouse.
25/AP/0890
2024 Refused
1B Court Lane London Southwark SE21 7DH
Demolition of single storey outbuilding to north of site, construction of self-build sing…
24/AP/2959
2024 Approved
53 Gilkes Crescent London Southwark SE21 7BP
5 DAY NOTIFICATION: Removal of dead Almond tree at the end of the rear garden and plantin…
24/AP/3608
2024 Approved
35 Calton Avenue London Southwark SE21 7DE
Work to a tree in a Conservation Area: T1 Eucalyptus tree - 50 feet estm. - planted 2003…
24/AP/2632
2024 Approved
29 Calton Avenue London Southwark SE21 7DE
Tree works removal of tree - Privet Tree approx 4m in height situated in rear garden of t…
24/AP/2493
2024 Approved
41 Dulwich Village London Southwark SE21 7BN
Construction of rear infill extension of internal courtyard and installation of PV panels…
24/AP/2267
2024 Approved
35 Calton Avenue London Southwark SE21 7DE
T1: A multi-stemmed Bay tree approximately 8m in height, situated on the left-hand side b…
24/AP/2030
2024 Approved
9 Dekker Road London Southwark SE21 7DL
Works to a Tree in a Conservation Area: Tl An Olive (Olea europaea) approximately 6m heig…
24/AP/1791
2024 Approved
29 Calton Avenue London Southwark SE21 7DE
Location: Lime Tree approximately 15 m in height situated in front garden of the property…
24/AP/1602
2024 Approved
26 Dekker Road London Southwark SE21 7DJ
Five day notice application for tree works: A twin stemmed apple (Malus domestica) approx…
24/AP/1856
2024 Approved
7 Dekker Road London Southwark SE21 7DL
Five Day Notification for tree works: 1 Leylandii rear of 7 Dekker Road. Cracked soil wit…
24/AP/1163
2023 Approved
25 Dulwich Village London Southwark SE21 7BN
Change the existing external ground floor use from sui generis to Use Class E (b) Sale of…
23/AP/3027
2024 Approved
14 Dekker Road London Southwark SE21 7DL
Works to Tree in a Conservation Area:Gl A group of two Ash (Fraxinus excelsior) approxima…
24/AP/0446
2023 Approved
9 Calton Avenue London Southwark SE21 7DE
Revised Specification to Dulwich Estate LicenceCrown thin by 20% including the removal of…
23/AP/3153
2023 Approved
26 Calton Avenue London Southwark SE21 7DG
Works to trees in a conservation area: *REVISED SPECIFICATION* To match Dulwich Estate Li…
23/AP/3090
2023 Approved
26 Calton Avenue London Southwark SE21 7DG
5 DAY NOTIFICATION: Works to a tree in a Conservation Area - (T11) Dead Lilac tree sectio…
23/AP/3203
2023 Refused
39 Gilkes Crescent London Southwark SE21 7BP
Erection of a timber pre-fabricated single storey garden studio for use associated with t…
23/AP/1455
2023 Approved
37 Dulwich Village London Southwark SE21 7BN
5 Day Notification for works to roots of a TPO tree: De minimis excavation of a Tulip Tre…
23/AP/1296
2022 Approved
Land To Rear Of 25 Dulwich Village London Southwark SE21 7BN
Permanent relocation of Grade II Listed stone plaque from the garden adjoining 1d Calton…
22/AP/3868
2016 Approved
41 Gilkes Crescent London SE21 7BP
T1 - Mature Horse chestnut tree to be removed. The tree is to the right hand side of rear…
16/AP/3880
2016 Approved
47 Dulwich Village London SE21 7BN
Installation of ATM through the shopfront glazing
16/AP/3381
2016 Approved
47 Dulwich Village London SE21 7BN
Display of ATM reflective advertising collar surround
16/AP/3382
2016 Approved
168 Woodwarde Road London SE22 8UR
Construction of x 2 dormers to rear roof slope to replace x3 roof windows
16/AP/2042
2016 Approved
15 Calton Avenue London SE21 7DE
Erection of rear dormer roof extension and ground floor layout changes
16/AP/1452
Southwark
Planning Authority Score
7/10
Good
#64 of 296 councils
Relevant to this application:
Householder decisions

Southwark is faster than most councils at deciding householder applications, ranking #54 out of 296. Householder applications are slightly more likely to be approved here (95%) than the national average (90%).

Faster than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Southwark decision performance
Based on MHCLG data, the year to March 2026
92%
Overall approval rate
Above avg (87%) #93 of 296
95%
Householder approved
Above avg (90%) #92 of 296
78%
Decided in 8 weeks
Above avg (63%) #54 of 296
37%
Extended time limit
Below avg (41%) #122 of 296
92%
Minor dwellings approved
259 decided (1-9 homes)
86%
Major dwellings approved
14 decided (10+ homes)
82%
Change of use approved
38 decided
1,622
Total decisions
132 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings