57 Briars Lane Hatfield AL10 8EX Data via plota.co.uk

6/2026/1219/LAWP - LAWFUL DEVELOPMENT - PROPOSED Approved

Proposal

Certificate of lawfulness for a proposed loft conversion with the installation of a rear dormer and four rooflights in the front elevation Data via plota.co.uk

View original council record ↗Last checked

Application progress

Received
13 Jul 2026
Approved
3 Sept 2026

Approved on 3 Sept 2026 · Delegated · Last checked 7 Sept 2026

Documents 16

All documents on the council site ↗

Site constraints 2

Also on the record
Local nature reserve 476 m away: Howe Dell; Inside the Hatfield built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 11 September 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.

Work with planning data?

Every application in Welwyn Hatfield - and every UK council - as a live feed, an API, or a bulk CSV export.

About Plota's data service

Important details

Application type
LAWFUL DEVELOPMENT - PROPOSED
Postcode
AL10 8EX
Received
13 Jul 2026
Validated
13 Jul 2026
Parish
Hatfield
Case officer
Show
Decision
Granted
Decision date
3 Sept 2026
Decision level
Delegated
Applicant
Show

How this decision compares

Decided in 52 days from validation, 4 days faster than Welwyn Hatfield's median of 56 for extensions. Approved, as 87% of extensions here are.

68%decided within 8 weeks
87%approved
636decided 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
17 Jul 2026
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