15, Sydenham Hill, SE26 6SHNon-material amendment to planning permission 25/AP/3772 (Construction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and extension of existing annexe to north side of house, alterations to existing grouSouthwark 26/AP/2548 · All Other
Sept 2026 400 m away
Application Under Consideration
FLAT B, 70 LONGTON GROVE, LONDON, SE26 6QHConstruction of a single storey extension to the rear of the lower ground floor, creation of a terrace above and the enlargement of the rear lightwell; and installation of replacement patio doors at lower ground level, a door at upper ground floor, both in the rear elevation at Flat B, 70 Longton Grove, SE26Lewisham DC/26/145007 · All Other
Aug 2026 300 m away
Approved
15, Sydenham Hill, SE26 6SHDetails of Condition 5 (Detailed drawings) as required by planning permission 25/AP/3772 'Construction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and extension of existing annexe to north side of houSouthwark 26/AP/2227 · All Other
Jul 2026 400 m away
Approved
15, Sydenham Hill, SE26 6SHDetails of Condition 4 (Material samples) as required by planning permission 25/AP/3772 'Construction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and extension of existing annexe to north side of housSouthwark 26/AP/2254 · All Other
Spotted when a home's energy certificate shows at least 15 m² (and 15%) more floor area than an earlier one. Only homes with two certificates show up, so the real number is higher. A busy street suggests extensions get permission here; check the council's planning register for the details.
Storm overflows within 2 km
No monitored sewer storm overflows within 2 km (England only).
New-home postcodes with fewer than 5 homes are counted above but not listed. 36 postcodes nearby had new homes completed in the last two years.
Refused
13A LONGTON AVENUE, LONDON, SE26 6REConstruction of a two storey side extension and rear roof extension at 13A Longton Avenue, SE26.Lewisham DC/26/144795 · Householder
Jul 2026 100 m away
Approved
15, Sydenham Hill, SE26 6SHDetails of condition 9a (Bee bricks and/or invertebrate hotels) as required by planning permission 25/AP/3772 'Construction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and extension of existing annexeSouthwark 26/AP/2075 · All Other
Jul 2026 400 m away
Application Under Consideration
15, Sydenham Hill, SE26 6SHDetails of condition 3 (Demolition and Construction Environmental Management Plan (DCEMP)) as required by planning permission 25/AP/3772 'Construction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and eSouthwark 26/AP/2042 · All Other
Jul 2026 400 m away
Approved
15, Sydenham Hill, SE26 6SHDetails of condition 6a (Bird boxes) as required by planning permission 25/AP/3772 'Construction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and extension of existing annexe to north side of house, alSouthwark 26/AP/2044 · All Other
Jul 2026 400 m away
Approved
15, Sydenham Hill, SE26 6SHDetails of condition 7a (Bat tubes, bricks or boxes) as required by planning permission 25/AP/3772 'Construction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and extension of existing annexe to north sSouthwark 26/AP/2073 · All Other
Jul 2026 400 m away
Approved
15, Sydenham Hill, SE26 6SHDetails of condition 8 (Hedgehog accesses) as required by planning permission 25/AP/3772 'Construction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and extension of existing annexe to north side of houSouthwark 26/AP/2074 · All Other
Jul 2026 400 m away
Approved
HESPER HOUSE, WELLS PARK ROAD, LONDON, SE26 6RQApplication for a Lawful Development Certificate (Existing) submitted under Section 191 of the Town & Country Planning Act 1990 (as amended) to confirm the lawful implementation of planning permission DC/21/120262 dated 23 February 2023 (as amended by DC/25/140357 dated 04 February 2026) for 'Demolition of existing buildings on site and the construction of a 5-storey building (plus lower ground) cLewisham DC/26/144270 · All Other
Jun 2026 450 m away
Approved
15, Sydenham Hill, SE26 6SHConstruction of single storey rear extension with patio and steps, basement extension to provide indoor swimming pool with terrace atop, south side extension to provide internal staircase to basement and three dormer windows to rear roof slope, remodelling and extension of existing annexe to north side of house, alterations to existing ground floor fenestration, and installation of new front boundSouthwark 25/AP/3772 · Householder
Jan 2026 400 m away
Approved
SYDENHAM HIGH SENIOR SCHOOL, 19 WESTWOOD HILL, LONDON, SE26 6BLDetails submitted pursuant to Condition 9(b)(ii)&(iii)-Materials and Design Quality of planning permission DC/24/135436 dated 13th January 2025 at Sydenham High Senior School, 19 Westwood Hill SE26.Lewisham DC/26/142595 · All Other
Jan 2026 400 m away
Approved
104, 104 WESTWOOD HILL, LONDON, SE26 6PEThe installation of replacement double-glazed windows, new doors in place of three windows, a new window opening and all associated works at Flat 1, 104 Westwood Hill SE26.Lewisham DC/26/142527 · All Other
Dec 2025 300 m away
Refused
15A, Sydenham Hill, SE26 6SHAlteration to existing front wall and railings and formation of a new domestic car parking area, including the formation of a new crossoverSouthwark 25/AP/3156 · Householder
Dec 2025 450 m away
Approved
2 SYDENHAM HILL, LONDON, SE26 6SJApplication for a Lawful Development Certificate (Proposed) submitted under Section 192 of the Town and Country Planning Act 1990 (as amended) to confirm that the proposed change of use from specialist residential support accommodation for young people to support accommodation for young mothers and children does not constitute development under Section 55(2)(f) of the Town and Country Planning ActLewisham DC/25/142164 · All Other
Nov 2025 350 m away
Withdrawn
HESPER HOUSE, WELLS PARK ROAD, LONDON, SE26 6RQDetails submitted pursuant to Condition 4-Construction Management Plan and Condition 12-Tree Protection Plan of planning permission DC/21/120262 dated 15th February 2023 at Hesper House, Wells Park Road SE26.Lewisham DC/25/141960 · All Other
Oct 2025 450 m away
Approved
HESPER HOUSE, WELLS PARK ROAD, LONDON, SE26 6RQNon-Material Amendment to planning permission DC/21/120262 to amend the wording of Condition 7 - (Piling) to allow commencement of development prior to the submission and approval of detailed piling information.Lewisham DC/25/141961 · All Other
Oct 2025 450 m away
Approved
SYDENHAM HIGH SENIOR SCHOOL, 19 WESTWOOD HILL, LONDON, SE26 6BLDetails submitted pursuant to Condition 24-PV Panels of planning permission DC/24/135436 dated 13th January 2025 at Sydenham High Senior School, 19 Westwood Hill SE26.Lewisham DC/25/141948 · All Other
Oct 2025 400 m away
Approved
SYDENHAM HIGH SENIOR SCHOOL, 19 WESTWOOD HILL, LONDON, SE26 6BLDetails submitted pursuant to Condition 9(a) & (b)(i)-Materials and Design Quality of planning permission DC/24/135436 dated 13th January 2025 at Sydenham High Senior School, 19 Westwood Hill SE26.Lewisham DC/25/141546 · All Other
Sept 2025 400 m away
Approved
SYDENHAM HIGH SENIOR SCHOOL, 19 WESTWOOD HILL, LONDON, SE26 6BLDetails submitted pursuant to Condition 6-Architectural Details of planning permission DC/24/135436 dated 13th January 2025 at Sydenham High Senior School, 19 Westwood Hill SE26.Lewisham DC/25/141518 · All Other
Sept 2025 400 m away
Approved
89 LONGTON AVENUE, LONDON, SE26 6RFConstruction of a single-storey rear extension at 89 Longton Avenue SE26.Lewisham DC/25/141483 · Householder
Sept 2025 300 m away
Approved
4 LONGTON AVENUE, LONDON, SE26 6QJReplacement of existing single-glazed timber windows and doors at the front, side, and rear, for double-glazed timber windows at front and side, double-glazed uPVC windows at rear, double-glazed timber doors at the front and side, and a double-glazed uPVC rear door at 4 Longton Avenue, SE26.Lewisham DC/25/141348 · Householder
Sept 2025 300 m away
Approved
2, Rock Hill, SE26 6SWWorks Order 168 - Rock Hill EstateSouthwark 25/AP/2387 · All Other
Aug 2025 500 m away
Approved
SYDENHAM HIGH SENIOR SCHOOL, 19 WESTWOOD HILL, LONDON, SE26 6BLDetails submitted pursuant to Condition 10(a)-Cycle Parking, Condition 16(a)-External Lighting and Condition 20(a)-Air Source Heat Pumps of planning permission DC/24/135436 dated 13th January 2025 at Sydenham High Senior School, 19 Westwood Hill SE26.Lewisham DC/25/141020 · All Other
Aug 2025 400 m away
Source: Planning London Datahub (Greater London Authority and the London boroughs); applications validated since January 2023. Data is published as received and may contain errors; check the borough's planning portal for documents.
Rooftop solar
Trinity School Of John Whitgift, Shirley Road - Solar PanelsApproved, not yet built
Apr 2023 5.1 km away
Rooftop solar
Peckham Pulse Leisure Centre, Melon Road - Solar PanelsApproved, not yet built · 230 kW
Jan 2025 5.2 km away
Running nearest: SELCHP ERF (energy from waste, 6.5 km); Beddington EfW (energy from waste, 7.5 km); Thameside DC (rooftop solar, 9.8 km).
DESNZ Renewable Energy Planning Database, April to June 2026 (OGL). Projects of 150 kW and over; refused, withdrawn and abandoned ones are left out.
DfT Street Manager permits (OGL), England. Dates are the planned ones; works often finish early or overrun.
Heathrow WestAirports · Heathrow Airport and land to the north-west and west of Heathrow Airport
application due November 2027 28.9 km away
Planning Inspectorate list of nationally significant infrastructure projects (roads, railways, energy, water, waste), October 2026 (OGL). Each is placed at one point, usually the middle of the site; long schemes run well beyond it.