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

38,466Searchable applications

335Recorded as pending

86%Approval rate · 32,138 approved or refused records

4,593Refused applications

27,545 approved · 4,593 refused · 2,089 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2013/1432/FP
Garage conversion to habitable accommodation and formation of one additional parking space
40 Purdom Road, Welwyn Garden City, AL7 4FH
Received 5 Jul 2013
Decided - Granted6/2023/0097/HOUSE
Erection of summer house/shed
46 Heay Fields Welwyn Garden City AL7 2EH
Received 16 Jan 2023
Decided - Granted6/2025/1740/HOUSE
Erection of a part single and part two storey rear extension and rear garage extension
14 Birch Drive Hatfield AL10 8NX
Received 15 Aug 2025
Decided - Granted6/2024/2060/COND
Submission of details pursuant of condition 1 (materials), 3 (landscape plan) , 4 (landscaping), 5 (bin store) and 6 (cycle storage) on planning permission 6/2022/2356/FULL
6 Ross Close Hatfield AL10 0QT
Received 24 Oct 2024
Decided - Granted6/2024/0895/COND
Submission of details pursuant to condition number 3 (Archaeological Scheme), 8 (Contamination) and 13 (Noise impact assessment) on planning permission 6/2021/3422/MAJ
Car Park Salisbury Square Hatfield AL9 5AD
Received 14 May 2024
Decided - Granted6/2021/1596/LAWP
Certificate of lawfulness for the erection of outbuilding containing swimming pool.
3 Pine Grove Brookmans Park Hatfield AL9 7BP
Received 19 May 2021
Decided - Withdrawn6/2017/0374/PN8
Prior approval for single storey rear extension measuring 4m in depth, 3.6m in height and 2.6m to the eaves
84 Carvers Croft Woolmer Green Knebworth SG3 6LX
Received 27 Feb 2017
Appeal Decided - DismissedN6/2013/0850/FP
Erection of two storey side extension
58 Crossway, WELWYN GARDEN CITY, AL8 7EE
Received 29 Apr 2013
Decided - Granted6/2023/0506/EM
Replacing white upvc bathroom/shower room window at the rear like for like
23 Brockswood Lane, Welwyn Garden City, AL8 7BE
Received 6 Mar 2023
Decided - Granted6/2021/0934/FULL
Change of use from mixed use dwellinghouse and childminding services facility for the care of up to eight children back into a single family dwelling, front lean to extension and dormer loft conversion
10 Swanley Bar Lane Little Heath Potters Bar EN6 1NP
Received 23 Mar 2021
Decided - GrantedS6/2008/0446/AD
INSTALLATION OF REPLACEMENT FASCIA SIGNS TO SHOP BULDING AND REPLACEMENT FREE STANDING AND BANNER SIGNS TO CAR PARK AREA
TESCO STORES LTD, GREAT NORTH ROAD, HATFIELD, HERTFORDSHIRE, AL9 5JY
Received 28 Feb 2008
Decided - Granted6/2021/1687/EM
Erection of conservatory and replacement of three windows to the rear of the property. Conservatory and windows to be dual colour - anthracite grey external and white internal.
5 Cedar Walk Welwyn Garden City AL7 1HQ
Received 26 May 2021
Decided6/2019/2239/TC
Reduce 1 x Cherry tree by 2-2.5 m
8 Handside Green Welwyn Garden City AL8 6SQ
Received 10 Sept 2019
Decided6/2020/0132/TC
Fell 1x Sycamore (T2) Cherry Plum (T3) reduce crown to 18' Sycamores (T4, T5, T7) reduce crowns to 18' Cherry Plum (T6) reduce crown to 18' Cherry Plum (T8) Reduce crown to 20' Cherry (T9) - re-shape crown and reduce to 16' Willow (T10) - prune to reshape crown and maintain to existing height.
48 Elmwood Welwyn Garden City AL8 6LE
Received 20 Jan 2020
Decided - Withdrawn6/2018/0947/HOUSE
Erection of single storey rear extension
171 Parkway Welwyn Garden City AL8 6JA
Received 10 Apr 2018
Decided - Granted6/2020/1981/HOUSE
Erection of a single side and rear extension with internal alterations
3 The Forge Coopers Lane Northaw Potters Bar EN6 4NF
Received 10 Aug 2020
Decided - Granted6/2018/0148/EM
Reduce crown of 1 x Mature Oak Tree by 25%
75 Rosedale Welwyn Garden City AL7 1DP
Received 16 Jan 2018
Decided - GrantedN6/2006/0263/LB
INTERIOR ALTERATIONS
Barn Theatre Barn Close Welwyn Garden City AL8 6ST
Received 2 Mar 2006
Decided - Granted6/2023/0359/LAWP
Certificate of Lawful Development for a proposed first floor dormer extension with juliet balcony
29 Stag Green Avenue Hatfield AL9 5EB
Received 16 Feb 2023
Decided - Granted6/2017/1233/HOUSE
Erection of single storey rear extension following demolition of existing conservatory
13 Digswell Road Welwyn Garden City AL8 7PD
Received 6 Jun 2017
Decided - Granted6/2025/2093/COND
Submission of details pursuant to condition number 4 (Arboricultural Method Statement and Tree Protection Strategy) on planning permission 6/2024/1512/MAJ (NMA1)
Elizabeth House Elizabeth Close Welwyn Garden City AL7 2JB
Received 1 Oct 2025
Decided - Granted6/2016/2017/FULL
Retrospective change of use from A2 (Financial & Professional Services) to A3 (Restaurants & Cafes) at No 83. Change of use from Beauty Salon to A3 at No 85. Use of forecourt of 83/85 for outside tables and chairs in association with A3 use.
83/85 Bradmore Green Brookmans Park Hatfield AL9 7QT
Received 23 Sept 2016
Decided - Granted6/2021/0956/HOUSE
Conversion of garage into habitable space, removal of garage door and replacement with window and formation of additional off street car parking space.
36 Purdom Road Welwyn Garden City AL7 4FH
Received 24 Mar 2021
Decided - GrantedS6/2009/2590/LU
CERTIFICATE OF LAWFULNESS FOR EXISTING EXTENSION OF DRIVEWAY (AS A MEANS OF ACCESS TO A HIGHWAY) AS PART OF ADDITIONAL HARD-SURFACING WORKS CREATED WITHIN ADJOINING RESIDENTIAL CURTILAGE
21 NEW PARK ROAD, NEWGATE STREET, HERTFORD, HERTFORDSHIRE, SG13 8RD
Received 24 Nov 2009

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

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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