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

40,154Searchable applications

303Recorded as pending

86%Approval rate · 33,678 approved or refused records

4,802Refused applications

28,876 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 3 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/1028/LB
Installation of internal wall and doorway
1-5 Park Street Hatfield AL9 5AT
Received 7 May 2020
Decided - Granted6/2017/2061/HOUSE
Erection of single storey rear extension and conversion of garage into habitable room
17 Hardings Welwyn Garden City AL7 2EQ
Received 14 Sept 2017
Decided - Granted6/2021/2915/HOUSE
Erection of a single storey rear extension, alterations to fenestrations and single storey extension to existing garage to create an office
21 Shrublands Hatfield AL9 7AL
Received 11 Oct 2021
Decided - Withdrawn6/2025/1426/EM
Removal of shed and construction of new outbuilding
542 Howlands Welwyn Garden City AL7 4ET
Received 4 Jul 2025
Decided - Granted6/2018/1125/EM
Erection of a conservatory to rear of property
337 Knightsfield Welwyn Garden City AL8 7NB
Received 30 Apr 2018
Decided - Granted6/2021/0720/HOUSE
Retention of existing outbuilding
54 Mymms Drive Brookmans Park Hatfield AL9 7AF
Received 4 Mar 2021
Decided - Granted6/2021/1221/EM
Erection of single storey rear extension, loft conversion with the installation of 3 x rear dormers and raise flat roof above garage
24 Turmore Dale Welwyn Garden City AL8 6HS
Received 14 Apr 2021
Decided - Granted6/2020/2458/FULL
Erection of a 2 bedroom dwellinghouse
1 Waterworks Cottages Bishops Rise Hatfield AL10 9HJ
Received 25 Sept 2020
Decided - GrantedN6/2009/2002/TC
REDUCE PLUM TREE, EUCALYPTUS TREE, WHITBEAM TREE AND APPLE TREE BY 33%
32 VALLEY ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7DN
Received 10 Sept 2009
Decided - Refused6/2022/1336/COND
Submission of details pursuant to condition 1 (materials), on planning application 6/2021/3553/HOUSE.
2 Barlow Close Hatfield AL10 9GZ
Received 9 Jun 2022
Decided - Granted6/2025/0031/HOUSE
Erection of double detached garage
Coverack 50 The Ridgeway Cuffley Potters Bar EN6 4BA
Received 8 Jan 2025
Decided - GrantedN6/2009/2126/TE
CROWN REDUCE WILLOW TREE TO 10 METRE HEIGHT AND 12 METRE SPREAD
45 DIGSWELL RISE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PP
Received 28 Sept 2009
Decided - Granted6/2025/0685/EM
Erection of garden shed on existing hard standing at the rear of back garden
37 Sherrardspark Road Welwyn Garden City AL8 7JY
Received 9 Apr 2025
Decided - Granted6/2020/1923/EMT
Fell 1 x Laurel to rear Fell 1 x Bay l to rear Reduce 1 x Hawthorn by 2 metres to rear
112 Parkway Welwyn Garden City AL8 6HN
Received 21 Jul 2020
Decided - Granted6/2020/1986/EM
Extension of driveway
24 Barleycroft Road Welwyn Garden City AL8 6JU
Received 10 Aug 2020
Decided - Withdrawn6/2017/0718/TPO
Removal of Leylandii tree in rear garden - Conservation Area
13 Welwyn Hall Gardens Welwyn AL6 9LF
Received 7 Apr 2017
Decided - Granted6/2026/1484/EMT
Remove 2x quince trees - trees are engulfed in ivy and have a lot of deadwood present
41 Rosedale Welwyn Garden City AL7 1DW
Received 24 Aug 2026
Decided - Refused6/2024/0576/HOUSE
Erection of single storey front extension, extension and alterations to front/side dormers, two storey rear extension, alterations to window and door openings following demolition of verandah
46 New Road Woolmer Green SG3 6LB
Received 25 Mar 2024
Decided - Refused6/2023/1265/TPO
Fell oak tree (Oak T1). To replace with a silver birch or rowan further away from the boundary line. In addition we will also plant more thorny shrubs along the boundary fence such as climbing roses and Pyracantha.
14 Mardley Dell Welwyn AL6 0UR
Received 15 Jun 2023
Decided - GrantedC6/1987/0414/FP
Single storey side extension
3 Thundridge Close, Welwyn Garden City, AL7 2LH
Received 1 Jan 1987
Decided - GrantedN6/2015/0289/FP
Erection of single storey rear and side extensions
55 Longcroft Lane, Welwyn Garden City, AL8 6EB
Received 12 Feb 2015
Decided - Withdrawn6/2021/0251/TPO
Fell 5 Tree's (Oak T1, T4), Hornbeam (T1, T3) and Acer (T2)
76 Brockswood Lane Welwyn Garden City AL8 7BQ
Received 27 Jan 2021
DecidedN6/2008/2282/TE
REDUCE AND THIN TREES BY 25% IN REAR GARDEN
23 Coneydale, Welwyn Garden City, AL8 7RX
Received 24 Nov 2008
Decided - GrantedN6/2013/0521/FP
Erection of single storey side and rear extensions
60 Lemsford Lane, WELWYN GARDEN CITY, AL8 6YJ
Received 25 Mar 2013

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