49 Haileybury Avenue Enfield EN1 1JJ Data via plota.co.uk

26/01850/CEA - Cert of Lawful Use/Operation - Proposed Approved
Extensions & alterations

Proposal

Rear dormer and front roof lights. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
6 May 2026
✓
Approved
26 May 2026

Approved on 26 May 2026 · Delegated Decision · Last checked 5 Jul 2026

Documents 2

Decision & officer reports 1

PDF Decision Notice Decision Notice · 26 May 2026 View ↗

Application forms 1

PDF Application Form - Without Personal Data Application Form - Without Personal Data · 6 May 2026 View ↗

All documents on the council site ↗

Site constraints 5

Article 4 direction
Borough wide. Named permitted development rights are withdrawn here.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.
Archaeological priority area
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: Enfield 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 Enfield built-up area; Public transport access: PTAL 2 (poor), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, 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.

Sales history 2

Last sold for £570,000 in July 2024. Terraced house, freehold.

15 July 2024£570,000
21 July 2016£470,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area78 m² (840 sq ft)
Energy ratingC (72 out of 100), could reach B
PropertyMid-terrace house, 5 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in May 2024, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Other new applications on this street

9 Oct 2026Pending

7 Haileybury Avenue Enfield EN1 1JJ

Single storey rear extension 6m deep x 3m high (3m high to eaves).

26/04312/PRH

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Single storey rear extension and front entrance porch.

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Part single, part 2-storey side/rear extension.

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Important details

Council
Enfield
Application type
Cert of Lawful Use/Operation - Proposed
Postcode
EN1 1JJ
Received
6 May 2026
Validated
6 May 2026
Ward
Southbury
Case officer
Show
Target decision
1 Jul 2026
Decision
Granted
Decision date
26 May 2026
Decision level
Delegated Decision
Applicant
Show
Agent
ADVANCE BUILDING CONSULTANCY ltd

How this decision compares

Decided in 20 days from validation, 24 days faster than Enfield's median of 44 for extensions. Approved, as 82% of extensions here are.

90%decided within 8 weeks
82%approved
1,770decided in the last year

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

Consultation & key dates

Alt. reference
PP-14911544
Planning Portal ref
PP-14911544
Statutory expiry
1 Jul 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
57 Trinity Avenue Enfield EN1 1HT
Single storey rear extension 6m deep x 3.4m high (3m high to eaves).
25/00953/PRH
2024 Approved
36 Trinity Avenue Enfield EN1 1HS
Single storey rear extension 6m deep x 3.08m high (2.83m high to eaves).
24/03481/PRH
2022 Approved
45 Melbourne Way Enfield EN1 1XG
Rear dormer with Juliet balcony and roof lights to front.
22/00772/CEA
2022 Approved
14 Harrow Avenue Enfield EN1 1JH
Rear dormer with front roof lights and front porch.
22/03024/CEA
2022 Refused
51 Melbourne Way Enfield EN1 1XG
Single storey rear extension 4.00m deep x 3.00m high (3.00m high to eaves).
22/02087/PRH
2022 Approved
86 Trinity Avenue Enfield EN1 1HS
Single storey rear extension 4m deep x 2.50m high (2.50m high to eaves).
22/01533/PRH
2022 Refused
66 Trinity Avenue Enfield EN1 1HS
Single storey rear extension.
22/00559/HOU
2022 Refused
45 Melbourne Way Enfield EN1 1XG
Single storey rear extension 4m deep x 3.50m high (2.70m high to eaves).
22/00835/PRH
2021 Approved
36 Trinity Avenue Enfield EN1 1HS
Rear dormer with front rooflights.
21/04198/CEA
2021 Refused
51 Melbourne Way Enfield EN1 1XG
Single storey rear extension, together with side dormer and rooflights.
21/03401/CEA
2021 Approved
36 Trinity Avenue Enfield EN1 1HS
Single storey rear extension.
21/02436/HOU
2021 Approved
66 Trinity Avenue Enfield EN1 1HS
Single storey rear extension.
21/02501/CEA
2021 Approved
37 Trinity Avenue Enfield EN1 1HT
Rear dormer with juliet balcony and front rooflights.
21/02361/CEA
2021 Approved
37 Trinity Avenue Enfield EN1 1HT
Single storey rear extension 6.00m deep x 3.35m high (3.00m high to eaves).
21/02396/PRH
2021 Approved
62 Trinity Avenue Enfield EN1 1HS
Rear dormer with juliet balcony and rooflights to front.
21/00948/CEA
2021 Approved
66 Trinity Avenue Enfield EN1 1HS
Front porch, rear dormer and alterations to the rear fenestration.
21/01425/CEA
2021 Refused
66 Trinity Avenue Enfield EN1 1HS
Single storey rear extension 5m deep x 4m high (3m high to eaves).
21/01435/PRH
2020 Approved
35 Haileybury Avenue Enfield EN1 1JJ
First floor rear extension.
20/02610/HOU
2020 Approved
57 Haileybury Avenue Enfield EN1 1JJ
Single storey rear extension 4.00m deep x 4.00m high (3.00m high to eaves).
20/02115/PRH
2020 Refused
35 Haileybury Avenue Enfield EN1 1JJ
First floor rear extension.
20/01515/HOU
2018 Approved
55 Trinity Avenue Enfield EN1 1HT
Single storey rear extension 6m deep x 3m high (3m high to eaves).
18/02443/PRH
2018 Refused
40 Trinity Avenue Enfield EN1 1HS
Single storey rear extension 5m deep x 3.75m high (2.8m high to eaves).
18/01670/PRH
2016 Approved
37 Melbourne Way Enfield EN1 1XG
Erection of a part single storey part two storey rear extension
16/03401/HOU
2016 Refused
49 Melbourne Way Enfield EN1 1XG
Single storey 3m rear extension to existing 3m extension totalling 6m deep x 3.5m high (2…
16/03267/PRH
2016 Approved
59 Trinity Avenue Enfield EN1 1HT
Single storey rear extension 6m deep x 3.5m high (2.75m high to eaves)
16/02221/PRH
Enfield
Planning Authority Score
6.9/10
Good
#65 of 296 councils
Relevant to this application:
Householder decisions

Enfield is one of the fastest councils in England for householder decisions, ranking #15 out of 296. Only 5% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Enfield is also one of the strictest councils - it refuses more householder applications than almost any other, with only 83% approved vs 90% nationally.

Among the fastest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Enfield decision statistics
Based on MHCLG data, the year to March 2026
78%
Overall approval rate
Below avg (87%) #271 of 296
83%
Householder approved
Below avg (90%) #260 of 296
90%
Decided in 8 weeks
Above avg (63%) #15 of 296
5%
Extended time limit
Below avg (41%) #1 of 296
60%
Minor dwellings approved
265 decided (1-9 homes)
63%
Major dwellings approved
8 decided (10+ homes)
72%
Change of use approved
322 decided
1,939
Total decisions
433 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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.