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

37,394Searchable applications

335Recorded as pending

86%Approval rate · 31,193 approved or refused records

4,344Refused applications

26,849 approved · 4,344 refused · 2,013 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 26 Oct 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/2931/HOUSE
Erection of single storey rear extension
72 Bradmore Green Brookmans Park Hatfield AL9 7QT
Received 19 Dec 2017
Decided - Refused6/2019/2021/HOUSE
Erection of side extension with installation of dormers and balcony
1 Peace Grove Welwyn AL6 0RS
Received 13 Aug 2019
Decided - GrantedN6/2014/2564/TC
Fell 1 Oak tree, 2 Sycamore trees and 2 Conifer trees. Crown reduce Conifer tree by 25% and reduce Hawthorn tree by upto 30% plus remove overhanging branches from Yew bush
102 Handside Lane, Welwyn Garden City, AL8 6SY
Received 24 Nov 2014
Decided - GrantedN6/2013/0493/NM
Non material amendment following approval of planning permission N6/2011/2748/FP - Protrusion of new garage to front of 100mm and lowering of gutterline above garage and inclusion of a rear velux window in the bathroom of the extension
2 Acorn Glade Digswell Welwyn AL6 0AZ
Received 14 Mar 2013
Decided - GrantedS6/2013/2618/FP
Increase in size of the roof to provide living accommodation within the loft space, including alterations to the roof pitch and a rear dormer window and erection of two storey side and single storey rear extensions
Meadside Great North Road Hatfield AL9 6DA
Received 9 Dec 2013
Decided - Refused6/2019/2617/LAWP
Certificate of lawfulness for the erection of a garage
Springfield Cottage Coopers Lane Northaw Potters Bar EN6 4NG
Received 16 Oct 2019
Decided - Granted6/2017/2781/FULL
Conversion of existing kennels/cattery building to a 4 bedroom dwelling and external alterations to facilitate conversion. Demolition of garage/grooming salon and the conversion of the existing 2 bedroom flat into a dog grooming salon. The erection of a single storey side extension to form a garage and store room. Extension of existing stable block and external alterations, to facilitate the conversion of part of the existing stables to a double garage and car port and the formation of a new access.
Bayford Kennels White Stubbs Lane Bayford Hertford SG13 8QA
Received 28 Nov 2017
Decided - Granted6/2023/1305/TC
Yew tree at rear of garden to be reduced and thinned by 20%. Adjacent large Cypress Fir tree to be felled
5 Barleycroft Green Welwyn Garden CitY AL8 6JY
Received 21 Jun 2023
Decided - Granted6/2019/1281/HOUSE
Erection of a single storey rear extension
5 Melbourne Court Welwyn Garden City AL8 6LL
Received 30 May 2019
Decided - GrantedN6/2014/2725/FP
Erection of single storey side extension
145 Handside Lane, Welwyn Garden City, AL8 6TA
Received 19 Dec 2014
Decided - Granted6/2017/0851/EM
Replacement and enlargement of vehicle hardstanding
1 Palmerston Close Welwyn Garden City AL8 7DL
Received 24 Apr 2017
Decided - Granted6/2017/1511/EM
Erection of single storey rear extension with flat roof
47 Broomhills Welwyn Garden City AL7 1RE
Received 11 Jul 2017
Decided - Granted6/2017/1708/COND
Submission of details pursuant to condition 1 (approved plans),3 (nesting survey), 4 (bat roof and hibernation surveys), 5 (replacement bat roost structure), 6 (ancillary barns) on planning permission 6/2016/1646/FULL
Great Nast Hyde House Wilkins Green Lane Hatfield AL10 9RB
Received 3 Aug 2017
Decided - Granted6/2021/2840/COND
Submission of details pursuant to condition 3 (surface water drainage) on planning permission 6/2019/1851/VAR
The Holdings, Cole Green Lane, Welwyn Garden City, AL7 4AL
Received 4 Oct 2021
Decided - Granted6/2020/0133/HOUSE
Erection of side extension following demolition of existing lean-to side extension
63 Holloways Lane Welham Green Hatfield AL9 7NU
Received 20 Jan 2020
Decided - Granted6/2026/0410/PN8
Prior approval for the erection of a flat roof single storey rear extension measuring 4.8m in depth, 3m in height and 2.50m to the eaves
63 Wilga Road Welwyn AL6 9PT
Received 5 Mar 2026
Decided6/2021/3133/TC
T1- To fell and replace silver birch tree in front garden. Due to severe die-back in crown, the tree has dead branches and very poor leaf coverage which keep falling.
138 Parkway Welwyn Garden City AL8 6HP
Received 2 Nov 2021
Decided - Refused6/2018/1018/PN8
Prior approval for erection of single storey rear extension measuring 6m in depth, 3m in height, 3m to the eaves
11 Glebe Cottages Essendon AL9 6HQ
Received 18 Apr 2019
Decided - Granted6/2024/2016/EM
Installation of Electric Vehicle Charger
63 Handside Lane Welwyn Garden City AL8 6SH
Received 21 Oct 2024
Decided - Granted6/2025/0548/EM
Replacement of 5 windows to the front of property
63 Attimore Road Welwyn Garden City AL8 6LG
Received 24 Mar 2025
Decided - Granted6/2025/1829/EMT
1 x Hornbeam to reduce by around 3m height and 2m width Reduce to retain suitable size & shape for garden
26 Sheepcote Welwyn Garden City AL7 4QD
Received 27 Aug 2025
Decided - Granted6/2025/1211/LB
Refurbishment and reconfiguration of existing Grade II listed building, demolition of existing conservatory, single storey brick extension and 2 detached garages. Erection of a single storey extension and new detached garage.
The Old Rectory 23-25 Mill Lane Welwyn AL6 9EU
Received 17 Jun 2025
Decided - GrantedW6/2007/1858/EM
FORMATION OF VEHICLE HARDSTANDING
101 Cole Green Lane, Welwyn Garden City, AL7 3JF
Received 30 Nov 2007
Decided - GrantedN6/2008/0617/FP
ERECTION OF SINGLE STOREY SIDE AND REAR EXTENSIONS
2 THE PADDOCKS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2BP
Received 25 Mar 2008

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.
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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