4 & 5 Ambassador Square, London, E14 9UX Data via plota.co.uk

PA/26/01202/NC - Full Planning Permission Approved
Extensions & alterations

Proposal

First floor rear extension to both houses at No.4 & No.5 Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
11 Aug 2026
✓
Consultation
20 Aug 2026
✓
Approved
6 Oct 2026

Approved on 6 Oct 2026 · Delegated · Last checked 7 Oct 2026

Documents 12

Decision & officer reports 2

PDF OFFICERS REPORT Delegated Report · 6 Oct 2026 View ↗ PDF DECISION_NOTICE Decision Notice · 6 Oct 2026 View ↗

Plans & drawings 9

PDF GDP360/HP1 EXISITING AND PROPOSED SITE LOCATION AND BLOCK PLANS Current Plan · 28 Jul 2026 View ↗ PDF GDP360/HP2 EXISITING FLOOR PLANS Current Plan · 28 Jul 2026 View ↗ PDF GDP360/HP3 EXISITING FLOOR PLANS Current Plan · 28 Jul 2026 View ↗ PDF GDP360/HP4 EXISITING AND PROPOSED ROOF PLANS Current Plan · 28 Jul 2026 View ↗ PDF GDP360/HP5 EXISITING AND PROPOSED ELEVATIONS Current Plan · 28 Jul 2026 View ↗ PDF GDP360/HP6 EXISITING ELEVATIONS Current Plan · 28 Jul 2026 View ↗ PDF GDP360/HP7 PROPOSED FLOOR PLANS Current Plan · 28 Jul 2026 View ↗ PDF GDP360/HP8 PROPOSED FLOOR PLANS Current Plan · 28 Jul 2026 View ↗ PDF GDP360/HP9 PROPOSED ELEVATIONS Current Plan · 28 Jul 2026 View ↗

Application forms 1

PDF Application Form Application Form · 28 Jul 2026 View ↗

All documents on the council site ↗

Site constraints 9

Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Flood map ↗
Archaeological priority area: Tower Hamlets APA 3.1
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
Air quality management area: Tower Hamlets 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 ↗
National infrastructure project 153 m away: Thames Tideway Tunnel
The site is 153 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted. Also within 2 km: Silvertown Tunnel (decided, 1520 m); London Strategic Heat Main Project (at pre-application, 1003 m).
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Local nature reserve 277 m away: Mudchute Park Farm
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
Opportunity area
Where the London Plan expects significant growth.
Boundaries are indicative and the borough holds the detailed plan.
Also on the record
Conservation area 28 m away: Chapel House; Inside the Tower Hamlets built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square.
Not affected
Not green belt · No listed building at the site · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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.

Building

Floor area134 m² (1,442 sq ft)
Energy ratingC (76 out of 100), could reach B
PropertyEnd-terrace house, 6 habitable rooms
Built1983 to 1990
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in July 2021, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Tower Hamlets
Application type
Full Planning Permission
Postcode
E14 9UX
Received
11 Aug 2026
Validated
11 Aug 2026
Ward
Island Gardens
Case officer
Show
Target decision
6 Oct 2026
Decision
Permit
Decision date
6 Oct 2026
Decision level
Delegated
Applicant
Show
Agent
Generative Design Partnership Ltd

How this decision compares

Decided in 56 days from validation, about the council's usual 56 days. Approved, as 89% of extensions here are.

67%decided within 8 weeks
89%approved
333decided in the last year

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

Consultation & key dates

Neighbours
20 Aug 2026
Consultation
20 Aug 2026
Comments by
11 Sept 2026
Statutory expiry
6 Oct 2026
Env. assessment
No

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
49 Harbinger Road, London, E14 3AA
Erection of a first-floor rear extension and conversion of the ground-floor bathroom into…
PA/25/02050/NC
2025 Approved
4 Ambassador Square, London, E14 9UX
Partial demolition to the rear extension with construction of three storey side extension…
PA/25/00702/NC
2025 Approved
8 Ambassador Square, London, E14 9UX
Erection of a first floor rear extension
PA/25/00311/NC
2024 Approved
3 Hesperus Crescent, London, E14 3AB
Works to Large London plane Tree to re-pollard by 2-3m to previous points due to extensiv…
PA/24/01929/NC
2024 Approved
42 Cahir Street, London, E14 3QR
Proposal for part single part two storey rear extension.
PA/24/00564/NC
2022 Refused
4 Ambassador Square, London, E14 9UX
Part three storey side extension with single storey rear extension.
PA/22/02137/NC
2022 Approved
34 Cahir Street, London, E14 3QR
Proposed part single part two storey rear extension to existing dwelling.
PA/22/01358/NC
2021
6 Hesperus Crescent, London, E14 3AD
Demolition of conservatory at the rear and erection of single storey rear extension. Dorm…
PA/21/01496/NC
2020 Approved
42 Cahir Street, London, E14 3QR
Demolition of existing rear ground floor extension and erection of a new single storey re…
PA/20/02365/NC
2020 Approved
32 Cahir Street, London, E14 3QR
Proposed part single and part double storey rear extension
PA/20/02265/NC
2020 Refused
4 Ambassador Square, London, E14 9UX
Part three storey side extension with single storey rear extension protruding from the or…
PA/20/02069
2020 Refused
4 Ambassador Square, London, E14 9UX
Part three storey side extension with single storey rear extension protruding from the or…
PA/20/02069/R
2020 Refused
32 Cahir Street, London, E14 3QR
Proposed part single, part double storey rear extension
PA/20/01200/NC
2020 Refused
32 Cahir Street, London, E14 3QR
Proposed part single, part double storey rear extension
PA/20/01200/R
2019 Approved
71A & 71B Cadogan Terrace, London, E9 5HP
Replacement of all the white single glazed timber sliding sash windows with like for like…
PA/19/02507/NC
2019 Approved
47 Harbinger Road, London, E14 3AA
Replacement of existing single storey rear outrigger with a full width rear extension, an…
PA/19/01164/NC
2019 Approved
62 Taeping Street, London, E14 9UT
Erection of a ground floor rear extension, loft dormer, porch storage, and two skylights…
PA/18/03480/NC
2019 Approved
Tree outside 3 Hesperus Crescent, London E14 3AB
1 x Large London plane Tree - to pollard.
PA/18/03429/NC
2018 Approved
16 Hesperus Crescent, London, E14 3AD
Proposed single storey rear extension with front door access moved to the side of the pro…
PA/18/01231/NC
2018 Approved
3 Ambassador Square, London, E14 9UX
Construction of a single storey outbuilding, for a proposed addition of a bathroom to the…
PA/18/01011/NC
2016 Approved
61 Cahir Street, London, E14 3QR
Application for a lawful development certificate in respect of proposed loft conversion w…
PA/16/02137/NC
2016 Approved
32 Cahir Street, London, E14 3QR
Rear garden t1 & t3 - large conifer - fell as close as possible to ground level. leaving…
PA/16/01570
2016 Approved
32 Cahir Street, London, E14 3QR
Rear garden t1 & t3 - large conifer - fell as close as possible to ground level. leaving…
PA/16/01570/NC
2016 Approved
32 Cahir Street, London, E14 3QR
Rear Garden - Reduce crown height by approx 2 metres of T1 ( Large Conifer); Fell T2 (Lar…
PA/16/00941
2016 Approved
32 Cahir Street, London, E14 3QR
Rear Garden - Reduce crown height by approx 2 metres of T1 ( Large Conifer); Fell T2 (Lar…
PA/16/00941/NC
Tower Hamlets
Planning Authority Score
3.9/10
Below average
#201 of 296 councils
Relevant to this application:
Householder decisions

Tower Hamlets is slower than most councils at deciding householder applications, ranking #207 out of 296. Householder applications are slightly more likely to be approved here (92%) 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
Tower Hamlets decision statistics
Based on MHCLG data, the year to March 2026
84%
Overall approval rate
Below avg (87%) #229 of 296
92%
Householder approved
Above avg (90%) #167 of 296
56%
Decided in 8 weeks
Below avg (63%) #207 of 296
42%
Extended time limit
Above avg (41%) #167 of 296
63%
Minor dwellings approved
52 decided (1-9 homes)
80%
Major dwellings approved
15 decided (10+ homes)
55%
Change of use approved
67 decided
998
Total decisions
164 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.