50 Westwood Avenue Hitchin Hertfordshire SG4 9LL Data via plota.co.uk

26/01406/FPH - Full Permission Householder Approved
Extensions & alterations

Proposal

Two storey side extension including front and rear dormer windows. Alterations to existing dormer windows including installation of external cladding. Alterations to fenestration and external render. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
11 Jun 2026
✓
Approved
18 Aug 2026

Approved on 18 Aug 2026 · Delegated · Last checked 18 Aug 2026

Documents

View the documents on the council's website ↗

Site constraints 3

National infrastructure project 745 m away: London Luton Airport Expansion
The site is 745 m from the project boundary. Airport, decided. The project page says whether consent was granted.
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 ↗
Also on the record
Radon affected area, class 2; Inside the Hitchin built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) 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 area77 m² (829 sq ft)
Energy ratingE (45 out of 100), could reach C
PropertySemi-detached house, 4 habitable rooms
Built1967 to 1975
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in October 2025, the latest held for this property. The building may have changed since. View the certificate

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Other new applications on this street

29 Sept 2026Pending

89 Westwood Avenue Hitchin Hertfordshire SG4 9LL

Front porch extension including replacement raised flat roof above existing gara...

26/02446/FPH
11 May 2026Approved

85 Westwood Avenue Hitchin Hertfordshire SG4 9LL

Two-storey side extension and addition of cladding to front and rear. Alteration...

26/01204/FPH
9 Jun 2026Approved

2 Westwood Avenue Hitchin Hertfordshire SG4 9LH

Single storey front and side extension.

26/01153/FPH

Nearby new applications

8 Oct 2026Pending

15 The Chilterns Hitchin Hertfordshire SG4 9PP

T1: Cedar - Reduce by approx 2m. Black Locust - Lightly prune by approx 10%

26/02552/TCA
29 Sept 2026Pending

89 Westwood Avenue Hitchin Hertfordshire SG4 9LL

Front porch extension including replacement raised flat roof above existing gara...

26/02446/FPH
24 Sept 2026Pending

7 Poplar Close Hitchin Hertfordshire SG4 9LZ

Two storey side extension and single storey rear extension following demolition ...

26/02397/FPH
22 Sept 2026Pending

48 Oakfield Avenue Hitchin Hertfordshire SG4 9JD

Replace existing garage door with bay window to facilitate conversion of garage ...

26/02380/FPH
22 Sept 2026Pending

6 The Beeches Hitchin Hertfordshire SG4 9HU

Replacement tiles and installation of solar panels to existing front and side el...

26/02227/LDCP
16 Sept 2026Pending

9 Manor Crescent Hitchin Hertfordshire SG4 9LY

Insertion of rear box dormer with Juliet balcony, no.2 front dormer windows and ...

26/02336/FPH

Important details

Council
North Hertfordshire
Application type
Full Permission Householder
Postcode
SG4 9LL
Received
11 Jun 2026
Validated
11 Jun 2026
Ward
Hitchin Highbury Ward
Parish
Hitchin
Case officer
Show
Target decision
21 Aug 2026
Decision
Conditional Permission
Decision date
18 Aug 2026
Decision level
Delegated
Applicant
Show
Agent
Show

How this decision compares

Decided in 68 days from validation, 19 days slower than North Hertfordshire's median of 49 for extensions. Approved, as 92% of extensions here are.

79%decided within 8 weeks
92%approved
601decided in the last year

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

Public comments

No public comments yet.

2 neighbours consulted · Last counted 18 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14973085
Planning Portal ref
PP-14973085
Comments by
16 Jul 2026

Historical activity at this location

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

Within ~100m

Nearby activity

2023 Approved
48 Willoughby Way Hitchin Hertfordshire SG4 9LN
Single storey rear extension.
23/00885/FPH
2023 Approved
48 Willoughby Way Hitchin Hertfordshire SG4 9LN
Single storey rear extension.
23/00885/FPH
2021 Approved
81 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Erection of garden studio in rear garden following demolition of existing detached garage
21/01027/FPH
2021 Approved
81 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Erection of garden studio in rear garden following demolition of existing detached garage
21/01027/FPH
2020 Approved
93 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Single storey front extension
20/02387/FPH
2020 Approved
93 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Single storey front extension
20/02387/FPH
2020 Approved
40 Willoughby Way Hitchin Hertfordshire SG4 9LN
First floor rear extension
20/00510/FPH
2020 Approved
40 Willoughby Way Hitchin Hertfordshire SG4 9LN
First floor rear extension
20/00510/FPH
2020 Approved
2 Whitehill Close Hitchin Hertfordshire SG4 9HX
Construction of a 3m diameter octagonal tree-house, including decking and rope bridge, al…
20/00378/FPH
2020 Approved
2 Whitehill Close Hitchin Hertfordshire SG4 9HX
Construction of a 3m diameter octagonal tree-house, including decking and rope bridge, al…
20/00378/FPH
2020 Approved
79 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Reposition existing front elevation door, insertion of side elevation door and ground flo…
20/00137/FPH
2020 Approved
79 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Reposition existing front elevation door, insertion of side elevation door and ground flo…
20/00137/FPH
2019 Approved
71 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Rear conservatory and conversion of existing garage to gym.
19/00071/FPH
2018 Approved
58 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Widening of existing front and rear dormer windows, insertion of french doors to rear ele…
18/02485/FPH
2018 Approved
87 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Two storey side extension
18/00813/FPH
2017 Refused
87 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Two storey side extension following demolition of existing car port.
17/04388/FPH
2017 Approved
36 Willoughby Way Hitchin SG4 9LN
Single storey front extension.
17/00539/1HH
2016 Approved
48 Westwood Avenue Hitchin SG4 9LL
Two storey side extension together with the extension of the existing front and rear dorm…
16/01199/1HH
2016 Approved
48 Westwood Avenue Hitchin SG4 9LL
Two storey side extension together with the extension of the existing front and rear dorm…
16/01199/1HH
2021 Approved
79 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Change from timber cladding to brick to match the original house (as non material amendme…
21/02663/NMA
2021 Approved
79 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Change from timber cladding to brick to match the original house (as non material amendme…
21/02663/NMA
2021 Approved
79 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Rear extension to be clad in timber cladding. This cladding would extend on the side elev…
21/00462/NMA
2021 Approved
79 Westwood Avenue Hitchin Hertfordshire SG4 9LL
Rear extension to be clad in timber cladding. This cladding would extend on the side elev…
21/00462/NMA
2017 Approved
48 Westwood Avenue Hitchin SG4 9LL
Reduce height of single storey rear extension and amendments to size and location of wind…
17/01020/1NMA
2016 Approved
57 Westwood Avenue Hitchin SG4 9LL
Raise height of first floor window sills on front and rear elevations; reduce proposed ea…
16/03006/1NMA
North Hertfordshire
Planning Authority Score
6.9/10
Good
#66 of 296 councils
Relevant to this application:
Householder decisions

North Hertfordshire ranks #128 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (95%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
North Hertfordshire decision statistics
Based on MHCLG data, the year to March 2026
93%
Overall approval rate
Above avg (87%) #62 of 296
95%
Householder approved
Above avg (90%) #87 of 296
69%
Decided in 8 weeks
Above avg (63%) #128 of 296
32%
Extended time limit
Below avg (41%) #65 of 296
82%
Minor dwellings approved
112 decided (1-9 homes)
84%
Major dwellings approved
19 decided (10+ homes)
90%
Change of use approved
21 decided
1,102
Total decisions
82 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

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.