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

24,218Searchable applications

313Recorded as pending

86%Approval rate · 19,834 approved or refused records

2,753Refused applications

17,081 approved · 2,753 refused · 1,262 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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

Decided6/2025/0906/TC
1 x Cherry Plum to reduce by approx 3m height and 1.5m width
51 Springfields Welwyn Garden City AL8 6XT
Received 16 May 2025
Decided - Granted6/2025/0186/PN33
Prior approval for the change of use from offices (Use Class E) to dwellinghouses (Class C3) to create 8 flats
Andre House 19-25 Salisbury Square Hatfield AL9 5BT
Received 3 Feb 2025
Decided - Granted6/2018/2092/FULL
Change of use from shop (A1) to ice cream/dessert parlour (A1/A3) and erection of single storey rear canopy seating area
8 Harpsfield Broadway Hatfield AL10 9TF
Received 10 Aug 2018
Decided - Withdrawn6/2015/2472/TPO
Lift crown of Ash tree (T1) by 5% and clean epicormic growth on Ash trees (T1 and T2) raise crown by 5% on 4 Oak trees (T4, T5, T6 and T7) plus clean epicormic growth on all and removal of shoots on Hornthorn tree (T9) covered by TPO 158
61 Peplins Way, Brookmans Park, Hatfield, AL9 7UR
Received 7 Dec 2015
Decided - Granted6/2017/2871/EM
Reduce Beech tree crown by up to 30% and reduce Lime tree back to previous pruning points (approximately 30%)
30 Youngs Rise Welwyn Garden City AL8 6RU
Received 11 Dec 2017
Decided - Granted6/2019/0990/FULL
Erection of agricultural building for stabling of horses
The View Carbone Hill Northaw Hertford SG13 8RG
Received 24 Apr 2019
Decided - Refused6/2020/1338/HOUSE
Erection of a two storey side extension
68 Travellers Lane Hatfield AL10 8SF
Received 12 Jun 2020
Decided - Granted6/2025/0048/EM
Loft conversion with roof lights at the rear
46 Holwell Road Welwyn Garden City AL7 3RQ
Received 14 Jan 2025
Decided6/2022/1325/TC
T1- Robinia - Lift the crown to 5 metres and reduce the crown all round by 2 metres. This is to maintain the size and shape from over the road. T2- Purple Leaf Plum - To thin the crown by 10% and cut back from the phone lines to maintain it and let the light through. T3- Laburnum - To thin the crown by 10% to maintain it and let the light through. T4 - Sycamore - To cut back from the phone lines so it does not damage them.
21 Valley Road Welwyn Garden City Hertfordshire AL8 7DH
Received 8 Jun 2022
Decided - Granted6/2024/1355/EM
Replacement of front door with equivalent
11 The Quadrangle Welwyn Garden City AL8 6SG
Received 16 Jul 2024
Decided - Granted6/2017/1475/EM
Erection of a single storey rear extension following removal of existing conservatory
168 Parkway Welwyn Garden City AL8 6HZ
Received 5 Jul 2017
Decided - Refused6/2026/0721/HOUSE
Reduction in height of the existing retaining boundary wall and alteration to and extending the garden boundary fencing.
4 The Chase Welwyn AL6 0QT
Received 23 Apr 2026
Decided - Refused6/2016/0370/HOUSE
Use of land as residential and relocation of 1.8m high fencing to boundary
33 Cornflower Way Hatfield AL10 9FY
Received 7 Mar 2016
Decided - Granted6/2025/1090/EM
Lawn hardstanding for car
27 Hurstlings Welwyn Garden City AL7 3LX
Received 9 Jun 2025
Decided - Granted6/2021/3046/TPO
T1 - crown reduce 1 x chestnut tree by 3-4m and remove deadwood
28 Marlborough Close Welwyn AL6 0UG
Received 22 Oct 2021
Decided6/2021/0795/TC
Reduce 5 x Apple and 1 x Pear by 1m and remove deadwood
16 Broadfield Place Welwyn Garden City AL8 6LJ
Received 11 Mar 2021
Appeal Decided - Dismissed6/2020/1480/EM
Erection of front porch
9 Handside Green Welwyn Garden City AL8 6SQ
Received 18 Jun 2020
Decided - Granted6/2018/0988/HOUSE
Erection of a single storey front extension following demolition of existing front porch, garage conversion and insertion of roof lantern to roof of existing single storey rear extension.
90 Hillyfields Welwyn Garden City AL7 2EA
Received 16 Apr 2018
Decided - Granted6/2020/2562/EMT
1 x Sycamore to lift branches over building by 2m to remove stem growing over privet hedge, lift limbs over rear boundary to 4.5m above ground level and 2 x secondary limbs over no 18 to remove
16 Barleycroft Road Welwyn Garden City AL8 6JU
Received 2 Oct 2020
Decided - Granted6/2026/1075/HOUSE
Erection of rear/side infill extension with garage conversion
34 Heron Way Hatfield AL10 8QX
Received 22 Jun 2026
Decided - Granted6/2022/0695/COND
Submission of details pursuant of condition 1 (provision of method statement) on planning permission 6/2022/0194/LB
St Thomas A Becket Northaw Road West Northaw Potters Bar Hertfordshire EN6 4NW
Received 23 Mar 2022
Decided - Granted6/2026/0091/EM
Erection of part single storey and part two storey rear extension with alterations to openings
47 Uplands Welwyn Garden City AL8 7EN
Received 21 Jan 2026
Decided - Granted6/2021/0440/ADV
Installation of a window display advertisements
University Of Hertfordshire College Lane Hatfield AL10 9AB
Received 11 Feb 2021
Decided - Granted6/2016/1678/HOUSE
Erection of single storey front storage and door canopy following demolition of existing storage and door canopy
20 Glebe Cottages, Essendon, Hatfield, AL9 6HQ
Received 16 Aug 2016

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