England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates

40,297Searchable applications

322Recorded as pending

86%Approval rate · 33,788 approved or refused records

4,816Refused applications

28,972 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 Nov 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

Planning information Planning and building Local plan Our Local Plan Pre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation Area Article 4 directions Article 4 Directions

Conservation areas and Article 4 directions

Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.

Conservation areas9 mapped area records

Article 4 direction areasNo boundary records available in this collection

Interactive planning map loads with JavaScript. Dataset sources are linked below.

Download Article 4 coverage for all authorities (CSV)

Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.

Sources: Planning Data conservation areas and Article 4 direction areas. Contains public sector information licensed under the Open Government Licence v3.0.

More application records

Decided - GrantedW6/2008/0916/EM
INSERTION OF TWO SKYLIGHTS
50 CROSSWAY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7EE
Received 10 Jun 2008
Decided - Granted6/2024/0275/EM
Replacement and removal of rear door with new window
7 Archers Ride Welwyn Garden City AL7 4PR
Received 9 Feb 2024
Decided - GrantedN6/2009/1919/FP
RETENTION OF TWO ROOFLIGHTS TO THE ELEVATION AND TWO ROOFLIGHTS TO THE REAR ELEVATION
12 WATERBEACH, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2PT
Received 8 Sept 2009
Decided - GrantedS6/2009/0372/FP
ERECTION OF SINGLE STOREY SIDE EXTENSION AND TWO STOREY REAR EXTENSION, FOLLOWING DEMOLITION OF EXISTING DETACHED GARAGE AND REAR CONSERVATORY
33 Brookside Crescent, Potters Bar, EN6 4QW
Received 24 Feb 2009
Decided - GrantedN6/2013/2228/TC
Removal of dead Pine tree
65 Valley Road, WELWYN GARDEN CITY, AL8 7DR
Received 11 Oct 2013
Decided - GrantedN6/2004/0096/FP
ERECTION OF SINGLE STOREY SIDE EXTENSION
97 Woodhall Lane Welwyn Garden City AL7 3TH
Received 21 Jan 2004
Decided - Granted6/2018/2578/HOUSE
Erection of single storey rear infill extension and alterations to openings
132 Lemsford Lane Welwyn Garden City AL8 6YP
Received 8 Oct 2018
Decided - Granted6/2015/1851/EM
Removal of Oak tree
10 Sherrardspark Road, Welwyn Garden City, AL8 7JP
Received 2 Sept 2015
Decided - GrantedN6/2007/0266/FP
ERECTION OF TWO STOREY REAR EXTENSION
25 Mandeville Rise Welwyn Garden City AL8 7JT
Received 19 Feb 2007
Decided - Granted6/2019/1518/EM
Erection of a single storey rear extension
27 Archers Ride Welwyn Garden City AL7 4PR
Received 21 Jun 2019
Appeal Decided - AllowedS6/2005/1462/FP
PART TWO STOREY SIDE EXTENSION AND PART FIRST FLOOR SIDE EXTENSION
22 Oaklands Wood Hatfield AL10 8LU
Received 25 Nov 2005
Decided - GrantedW6/2015/1420/EM
Extension of outbuilding and connection between outbuilding and rear elevation; incorporating new window and bi-folding doors. Replace roof above existing garage incorporating rooflight.
351 Knightsfield Welwyn Garden City AL8 7NB
Received 1 Jul 2015
Decided - RefusedN6/2006/0019/FP
DEMOLITION OF EXISTING DWELLING AND ERECTION OF NEW DWELLING AND GARAGE
4 Robbery Bottom Lane Welwyn AL6 0UW
Received 6 Jan 2006
DecidedN6/2008/1926/TC
WORKS TO TREE.
LAND ADJACENT TO 24 MANDEVILLE RISE, WELWYN GARDEN CITY, HERTFORDSHIRE
Received 9 Oct 2008
Decided - Granted6/2025/0430/HOUSE
Erection of single storey infill extension to existing annexe
The Vines 51A High Road Essendon Hatfield AL9 6HS
Received 7 Mar 2025
Appeal Decided - Dismissed6/2017/0357/ADV
Installation of 1x internally illuminated fascia sign and 3x non-illuminated printed vinyl signs.
44 Church Road Welwyn Garden City AL8 6SA
Received 24 Feb 2017
Appeal Decided - Dismissed6/2020/0823/HOUSE
Erection of front boundary wall, railings, piers and installation of entrance gate (part-retrospective)
21 The Ridgeway, Cuffley, Potters Bar, EN6 4BB
Received 2 Apr 2020
Decided - Granted6/2016/1587/EM
Removal of Scots Pine tree
8 The Links, Welwyn Garden City, AL8 7DS
Received 2 Aug 2016
Decided - WithdrawnS6/2014/2546/FP
Erection of a ground floor rear extension
74 Bull Stag Green Hatfield AL9 5DE
Received 20 Nov 2014
Decided - Refused6/2016/2431/FULL
Erection of a new dwelling with detached garage following demolition of existing garages
Rear of 14 Great North Road Welwyn AL6 0PL
Received 15 Nov 2016
Decided - Granted6/2016/2395/HOUSE
Erection of single storey rear extension and loft conversion with rear facing dormers
16 Wellington Drive Welwyn Garden City AL7 2NJ
Received 8 Nov 2016
Decided - Granted6/2016/2508/EM
Erection of a single storey rear extension
483 Howlands Welwyn Garden City AL7 4HP
Received 23 Nov 2016
Decided - Granted6/2021/2343/ADV
Installation of 1 x internally illuminated fascia sign and 1 x internally illuminated projecting/hanging sign
26B Town Centre Hatfield AL10 0LD
Received 9 Aug 2021
Decided - GrantedN6/2007/1579/FP
ERECTION OF A REAR CONSERVATORY
30 FORRESTERS DRIVE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2HW
Received 24 Oct 2007

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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Researching a proposal in Welwyn Hatfield Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

All planning guides

Understanding planning · 13 min read
Planning application documents: what to read first
Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.
UK research
Published 16 Jul 2026Updated 13 Sept 2026
Understanding planning · 13 min read
Planning permission drawings: how to read plans
Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.
UK research
Published 6 Aug 2026Updated 13 Sept 2026
Property research · 13 min read
Planning approval rates: how to read council statistics
Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.
UK research
Published 13 Aug 2026Updated 13 Sept 2026

What these statistics cover

These figures describe applications collected by PlanningTrack for Welwyn Hatfield Borough Council, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.

The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.

Check collection coverage