England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates

28,920Searchable applications

307Recorded as pending

87%Approval rate · 23,968 approved or refused records

3,215Refused applications

20,753 approved · 3,215 refused · 1,538 withdrawn. Received dates in our records: 1 Nov 1999 to 13 Oct 2026. Most recent record check: 17 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/3116/FULL
Retention of rear and side steel canopy structures
Cuffley Gate Sopers Road Cuffley Potters Bar EN6 4RY
Received 9 Dec 2019
Decided - GrantedS6/2014/1080/HH
Prior approval for single storey rear extension following demolition of existing conservatory
20 Firs Wood Close, Northaw, Potters Bar, EN6 4BY
Received 27 May 2014
Decided - Granted6/2024/1501/COND
Submission of details pursuant of Condition 2 Section 5 (Management of Construction Report) on prior approval 6/2024/0951/PN27
6 Sutherland Way Cuffley Potters Bar EN6 4EG
Received 7 Aug 2024
Decided - RefusedN6/2014/0582/FP
Erection of two storey & single storey rear extensions, front porch, alterations to existing outbuilding
139 The Vineyard, Welwyn Garden City, AL8 7PX
Received 18 Mar 2014
Decided - Granted6/2021/1473/EMT
Elder (1) - fell Holly (2) - fell Elder (3) - fell Holly (4) - fell Holly (5) - 30% height reduction and pruning Holly (6) - 30% height reduction and pruning Holly (7) - 30% height reduction and pruning Hawthorne (8) - 30% height reduction and pruning
11 The Quadrangle Welwyn Garden City AL8 6SG
Received 10 May 2021
Decided - GrantedS6/2014/2374/FP
Ground floor rear extension following demolition of conservatory
133 Bramble Road Hatfield AL10 9SD
Received 29 Oct 2014
Decided - Granted6/2018/2136/HOUSE
Erection of a single storey, part two storey rear extension, insertion of door to existing side elevation and formation of hardstanding driveway for new car park space
12 Stanborough Mews Welwyn Garden City AL8 6DB
Received 16 Aug 2018
Decided - Withdrawn6/2020/1115/HOUSE
Demolition of existing derelict garage with replacement single storey annexe with single storey link extension to side of main property.
12 Meadow Green Welwyn Garden City AL8 6SS
Received 18 May 2020
Decided - Granted6/2026/1079/COND
Submission of details pursuant to condition 1 (Landscaping) on planning permission 6/2025/1850/FULL
13 Flamingo Close Hatfield AL10 9LU
Received 22 Jun 2026
Decided - Granted6/2025/0271/PN8
Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.8m in height and 2.8m to the eaves
49 Oaklands Avenue Hatfield AL9 7UH
Received 14 Feb 2025
Decided6/2025/1003/TC
2 x Lawson cypress to remove to ground level (by court 1).
Dellcott Tennis Club Dognell Green Welwyn Garden City AL8 7BL
Received 28 May 2025
Decided - Refused6/2024/1611/COND
Submission of details pursuant of condition 6 and 29 (Parking Enforcement Measures/Management) on planning permission 6/2019/3024/MAJ
29 Broadwater Road Welwyn Garden City Hertfordshire AL7 3BQ
Received 22 Aug 2024
Decided - Split6/2020/1461/COND
Submission of details pursuant to condition 10 (Drainage Strategy), condition 13 (Street lighting), condition 14 (PV) and condition 15 (Hard and soft landscaping) on planning permission 6/2017/0848/MAJ (APP/C1950/W/17/3190821)
Entech House London Road Woolmer Green SG3 6JE
Received 22 Jun 2020
Decided - Granted6/2019/1346/VAR
Flexible land use for floorspace within Blocks 1, 4, 5 (Class B1/D1/D2 uses), the creation of 542 sq.m of additional floorspace (Class B1/D1/D2) within Block 1, and agreement to minimum floorspace quantums for the Class B1, Class D1 and Class D2 floorspace across the site.
Former Shredded Wheat Factory Welwyn Garden City AL8 6UN
Received 5 Jun 2019
Decided - Granted6/2017/2320/LAWP
Certificate of Lawfulness for the erection of single storey rear and side extensions, installation of rear dormer window and hip to gable roof, following demolition of existing extensions
19 The Avenue Welwyn AL6 0PW
Received 10 Oct 2017
Decided - Granted6/2024/2082/EM
Erection of a part single and part two storey rear extension, single storey front extension, garden outbuilding following demolition of existing garage and alterations to driveway
86 The Vineyard Welwyn Garden City AL8 7PU
Received 28 Oct 2024
Decided - GrantedN6/2013/2713/FP
Erection of two storey side and single storey rear extensions
113 Warren Way Digswell Welwyn AL6 0DL
Received 30 Dec 2013
Decided6/2024/1540/TC
Removal of Silver Birch Tree (T1) due to basal decay
34 Sherrardspark Road Welwyn Garden City AL8 7JS
Received 13 Aug 2024
Decided - Granted6/2018/2751/HOUSE
Erection of two storey side extension including installation of rear dormer to facilitate hip to gable loft conversion and alterations to openings
8 Woodside Road Digswell Welwyn AL6 0DR
Received 25 Oct 2018
Decided - GrantedN6/2014/2337/MA
Retention of nursing home with respite care and ancillary services
Knebworth Care Home 59 London Road Woolmer Green Knebworth SG3 6JE
Received 22 Oct 2014
Appeal Decided - Dismissed6/2018/0118/HOUSE
Installation of rear dormer window to facilitate loft conversion
1 Ivy Walk Hatfield AL10 9FX
Received 12 Jan 2018
Decided - Granted6/2022/2912/COND
Submission of details pursuant to condition 2 (Boundary & Surfacing Treatment Plan) on planning application 6/2022/0824/RM
Roundhouse Farm Land off Bullens Green Lane Colney Heath
Received 29 Dec 2022
Decided - Granted6/2026/0302/EMT
1 x Cherry to fell.
17 Dellcott Close Welwyn Garden City AL8 7BB
Received 19 Feb 2026
Decided - Granted6/2023/0661/EM
Repair/ replace existing driveway, slightly widen driveway, replace a path with flower beds, replace flower bed at front of garden with new lawn, refurbish existing steps to house. This proposal will not alter the current balance between hardstanding and the soft landscape area
16 Templewood Welwyn Garden City AL8 7HX
Received 23 Mar 2023

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

View all applications

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