511 Howlands Welwyn Garden City AL7 4HS Data via plota.co.uk

6/2026/1883/EM - ESTATE MANAGEMENT Under Consultation
Extensions & alterations

Proposal

Replacing and altering an existing window to reduce its width and height Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
16 Oct 2026
Decision
Expected by 11 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 11 Dec 2026, from Welwyn Hatfield's recent extensions.

Comments are open until 11 Nov 2026

Comment on this application ↗

Documents 6

Plans & drawings 5

PDF 511 Howlands - Site Plan.pdf (873 kb) Document · 16 Oct 2026 View ↗ PDF 511 Howlands - Existing Plans.pdf (277 kb) Document · 16 Oct 2026 View ↗ PDF 511 Howlands - Proposed Plans.pdf (279 kb) Document · 16 Oct 2026 View ↗ PDF 511 Howlands - Existing Elevation.pdf (261 kb) Document · 16 Oct 2026 View ↗ PDF 511 Howlands - Proposed Elevation.pdf (264 kb) Document · 16 Oct 2026 View ↗

Other documents 1

PDF EstateManagementConsentNoPersonalDataForm.pdf (52 kb) Document · 16 Oct 2026 View ↗

All documents on the council site ↗

Site constraints 1

Also on the record
Inside the Welwyn Garden City built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 22 October 2026. Historic England, the Environment Agency, Natural England 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 1

Last sold for £300,000 in September 2019. Terraced house, freehold.

17 September 2019£300,000

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

Building

Floor area70 m² (753 sq ft)
Energy ratingD (61 out of 100), could reach C
PropertyEnd-terrace house, 5 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in April 2019, 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

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131 Boundary Lane Welwyn Garden City AL7 4EQ

Remove oversized Conifer tree

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2 Oct 2026Pending

505 Howlands Welwyn Garden City AL7 4HS

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20 Aug 2026Approved

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Important details

Council
Welwyn Hatfield
Application type
ESTATE MANAGEMENT
Postcode
AL7 4HS
Received
16 Oct 2026
Validated
16 Oct 2026
Case officer
Show
Decision level
Delegated
Applicant
Show
Agent
Paula Ortega Garcia

Decision outlook

Day 13 of the 56-day target. Welwyn Hatfield usually decides extensions by day 56.

Day 1343 days to the 56-day target
68%decided within 8 weeks
88%approved
693decided in the last year

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

Consultation & key dates

Comments by
11 Nov 2026

Historical activity at this location

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

This property

Previous applications at this address

2020 Approved
Formation of hardstanding following landscaping alterations.
6/2020/1763/EM
2020 Approved
Formation of hardstanding following landscaping alterations.
6/2020/1763/EM
Within ~100m

Nearby activity

2024 Approved
505 Howlands Welwyn Garden City AL7 4HS
Erection of a single storey rear extension
6/2024/2311/EM
2024 Approved
2 Walnut Court Welwyn Garden City AL7 4EZ
Installation of an EV charge point to the front of the property for a motability vehicle
6/2024/1453/EM
2024 Approved
44 Lady Grove Welwyn Garden City AL7 4DU
Erection of single storey side/rear extension, following demolition of existing garage an…
6/2024/0150/EM
2024 Approved
44 Lady Grove Welwyn Garden City AL7 4DU
Erection of single storey side/rear extension, following demolition of existing garage an…
6/2024/0180/HOUSE
2022 Approved
20 Lady Grove Welwyn Garden City AL7 4DU
Erection of timber panel fencing to the rear garden of the property
6/2022/2025/EM
2022 Approved
20 Lady Grove Welwyn Garden City AL7 4DU
Erection of timber panel fencing to the rear garden of the property
6/2022/2025/EM
2022 Approved
24 Lady Grove Welwyn Garden City AL7 4DU
Roof Light added to existing flat roof rear extension
6/2022/1746/EM
2022 Approved
24 Lady Grove Welwyn Garden City AL7 4DU
Roof Light added to existing flat roof rear extension
6/2022/1746/EM
2022 Approved
24 Lady Grove Welwyn Garden City AL7 4DU
Installation of roof light into existing ground floor flat roof extension
6/2022/1742/HOUSE
2022 Approved
24 Lady Grove Welwyn Garden City AL7 4DU
Installation of roof light into existing ground floor flat roof extension
6/2022/1742/HOUSE
2021 Approved
42 Lady Grove Welwyn Garden City AL7 4DU
Reduce 1 x Cherry Plum tree to boundary line, reduce 1 x Norway Maple by 1.2m and remove…
6/2021/0682/EMT
2021 Approved
42 Lady Grove Welwyn Garden City AL7 4DU
Reduce 1 x Cherry Plum tree to boundary line, reduce 1 x Norway Maple by 1.2m and remove…
6/2021/0682/EMT
2020 Approved
14 Walnut Court Welwyn Garden City AL7 4EZ
Erection of part two-storey and part single-storey side and rear extension
6/2020/2543/EMH
2020 Approved
14 Walnut Court Welwyn Garden City AL7 4EZ
Erection of part two-storey and part single-storey side and rear extension
6/2020/2543/EMH
2020 Approved
14 Walnut Court Welwyn Garden City AL7 4EZ
Erection of a part two-storey side and part single-storey side and rear extension
6/2020/2538/HOUSE
2020 Approved
14 Walnut Court Welwyn Garden City AL7 4EZ
Erection of a part two-storey side and part single-storey side and rear extension
6/2020/2538/HOUSE
2019 Approved
20 Linkfield Welwyn Garden City AL7 4DW
Fell 1 x Oak tree
6/2019/0039/EM
2018 Approved
509 Howlands Welwyn Garden City AL7 4HS
Erection of replacement conservatory
6/2018/2394/EM
2018 Approved
25 Lady Grove Welwyn Garden City AL7 4DS
Installation of front window to facilitate conversion of garage, installation of 2 x roof…
6/2018/2103/EM
2017 Approved
495 Howlands Welwyn Garden City AL7 4HS
Reduce silver birch tree by upto 30%
6/2017/0398/EM
2016 Approved
73 Walnut Grove, Welwyn Garden City, AL7 4EY
Formation of hard standing
6/2016/1536/EM
2016 Approved
73 Walnut Grove, Welwyn Garden City, AL7 4EY
Formation of hard standing
6/2016/1536/EM
2016 Approved
483 Howlands Welwyn Garden City AL7 4HP
Erection of a single storey rear extension
6/2016/2508/EM
2016 Approved
483 Howlands Welwyn Garden City AL7 4HP
Erection of a single storey rear extension
6/2016/2508/EM
2024 Approved
505 Howlands Welwyn Garden City AL7 4HS
Prior approval for the erection of a single storey extension measuring 5m in depth and 3m…
6/2024/2310/PN8
Welwyn Hatfield
Planning Authority Score
2.1/10
Poor
#272 of 296 councils
Relevant to this application:
Householder decisions

Welwyn Hatfield is slower than most councils at deciding householder applications, ranking #224 out of 296. 50% of applications have the time limit extended, above the 41% national average. Householder applications are slightly less likely to be approved here (86%) 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
Welwyn Hatfield decision statistics
Based on MHCLG data, the year to March 2026
86%
Overall approval rate
Below avg (87%) #200 of 296
86%
Householder approved
Below avg (90%) #246 of 296
53%
Decided in 8 weeks
Below avg (63%) #224 of 296
50%
Extended time limit
Above avg (41%) #229 of 296
84%
Minor dwellings approved
63 decided (1-9 homes)
83%
Major dwellings approved
12 decided (10+ homes)
73%
Change of use approved
22 decided
633
Total decisions
87 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.

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.