45-63 Brownfields Mill Brownfields Welwyn Garden City AL7 1AN Data via plota.co.uk

Pending 6/2026/0766/MAJ
Extensions & alterations
Council
Welwyn Hatfield 2.1/10
Date received
30 Apr 2026
Date validated
21 May 2026
Postcode
AL7 1AN

Description

Erection of an additional storey to the roof of the building to accommodate additional office space. Data via plota.co.uk

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Historical activity at this location

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

Within ~100m

Nearby activity

2023 Approved
39 Brownfields Welwyn Garden City AL7 1AN
Construction and operation of a micro energy storage facility.
6/2023/1616/FULL
2023 Approved
39 Brownfields Welwyn Garden City AL7 1AN
Construction and operation of a micro energy storage facility.
6/2023/1616/FULL
2023 Approved
17-21 Brownfields Welwyn Garden City AL7 1AN
2 x Oak trees T1 & T2 - to remove major deadwood over access road and reduce low limbs fr…
6/2023/0294/TPO
2023 Approved
17-21 Brownfields Welwyn Garden City AL7 1AN
2 x Oak trees T1 & T2 - to remove major deadwood over access road and reduce low limbs fr…
6/2023/0294/TPO
2021 Approved
Welwyn Saab 36 Brownfields Welwyn Garden City AL7 1AN
Submission of details pursuant to condition 1 (construction management plan), 2 (cycles p…
6/2021/3313/COND
2021 Approved
Welwyn Saab 36 Brownfields Welwyn Garden City AL7 1AN
Submission of details pursuant to condition 1 (construction management plan), 2 (cycles p…
6/2021/3313/COND
2021 Approved
Welwyn Saab 36 Brownfields Welwyn Garden City AL7 1AN
Change of use and demolition of the existing car dealership/service centre and the erecti…
6/2021/2178/FULL
2021 Approved
Welwyn Saab 36 Brownfields Welwyn Garden City AL7 1AN
Change of use and demolition of the existing car dealership/service centre and the erecti…
6/2021/2178/FULL
2021 Approved
29 Brownfields Welwyn Garden City AL7 1AN
Change the use from a vehicle hire depot (Sui Generis Use) to a warehouse for storage and…
6/2021/1924/FULL
2021 Approved
29 Brownfields Welwyn Garden City AL7 1AN
Change the use from a vehicle hire depot (Sui Generis Use) to a warehouse for storage and…
6/2021/1924/FULL
2021 Approved
29 Brownfields Welwyn Garden City AL7 1AN
Submission of details pursuant to condition 2 (location of disabled car user parking bay)…
6/2021/0883/COND
2021 Approved
29 Brownfields Welwyn Garden City AL7 1AN
Submission of details pursuant to condition 2 (location of disabled car user parking bay)…
6/2021/0883/COND
2020 Approved
Sienna House 8 Brownfields Court Welwyn Garden City AL7 1AJ
New floor of accommodation providing 4 new flats.
6/2020/3409/FULL
2020 Approved
Sienna House 8 Brownfields Court Welwyn Garden City AL7 1AJ
New floor of accommodation providing 4 new flats.
6/2020/3409/FULL
2019 Refused
Sienna House 8 Brownfields Court Brownfields AL7 1AJ
Erection of 4 x dwellings
6/2019/2812/FULL
2019 Approved
City Park Swiftfields Welwyn Garden City AL7 1LY
Installation of 1 x non-illuminated fascia sign
6/2019/1205/ADV
2018 Approved
Pacific House Unit K City Park Swiftfields Welwyn Garden City AL7 1LY
Installation of 7 x air conditioning units
6/2018/3121/FULL
2018 Approved
29 Brownfields Welwyn Garden City AL7 1AN
Submission of details pursuant to condition 1 (scheme of secure cycle parking) on plannin…
6/2018/2632/COND
2018 Approved
29 Brownfields Welwyn Garden City AL7 1AN
Change of use from industrial storage (B8) to a vehicle hire facility (Sui Generis)
6/2018/1616/FULL
2018 Approved
29 Brownfields Welwyn Garden City AL7 1AN
Installation of 1 x non-illuminated fascia sign
6/2018/1976/ADV
2018 Approved
29 Brownfields Welwyn Garden City AL7 1AN
Erection of rear extension to vacant warehouse/industrial building including alterations…
6/2018/1975/FULL
2018 Approved
Unit 2 The Polaris Centre 41 Brownfields Welwyn Garden City AL7 1AN
Installation of windows to flank and rear elevation
6/2018/0384/FULL
2017 Approved
Land adj to Unit 1 The Polaris Centre 41 Brownfields Welwyn Garden City AL7 1AN
Removal of 5 cherry trees 1-5 covered by TPO 371 (2006)
6/2017/2171/TPO
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 performance
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