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

24,613Searchable applications

313Recorded as pending

86%Approval rate · 20,176 approved or refused records

2,787Refused applications

17,389 approved · 2,787 refused · 1,294 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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

Decided - Granted6/2016/1406/EM
Enclosure of front porch and erection of single storey rear extension
15 Bedwell Close, Welwyn Garden City, AL7 3XH
Received 11 Jul 2016
Decided - Granted6/2018/2743/COND
Submission of details pursuant to conditions 3 (Archaeological A, B and C), 4 (Contamination Parts A, B and C), 6 (External Lighting), 7 (Green Roof Details) and 8 (Fire Hydrant) on planning permission 6/2018/0598/MAJ
Ponsbourne Riding School and Ponsbourne Grange Ponsbourne Park Newgate Street Hertford SG13 8QS
Received 23 Oct 2018
Decided - Granted6/2019/0190/LB
Listed building consent for repairs to outbuilding
34 Abdale House Warrengate Road North Mymms Hatfield AL9 7TX
Received 29 Jan 2019
Decided - Granted6/2022/0996/EM
Replacement of roof tiles
7 Sherrardspark Road, Welwyn Garden City, AL8 7JW
Received 27 Apr 2022
Decided - Granted6/2023/0842/EMT
Line of Beech trees, rear of 2,4,6 Blakemere Road, WGC reference planning application 6/2023/0309/TC Reduce crown by up to 1.5-2m (or back to boundary) on Eastern side to: 1.minimise the risk of dead/hung up crown debris 2.minimise the risk from existing deadwood within the crowns 3.maintaining the overall crown overhang to an appropriate size/spread 4.improve natural ambient light to the adj property block, specifically Nos 84, 86 & 88
No. 2, 4 and 6 Blakemere Road, Welwyn Garden City AL8 7PJ
Received 20 Apr 2023
Decided - Granted6/2017/1294/LAWP
Certificate of lawfulness for the erection of side porch, single storey side extension and single storey rear extension, conversion of roof from hip to gable with rear dormer window and 2 velux windows to front roof scape involving internal alterations.
38 Wellcroft Road Welwyn Garden City AL7 3JY
Received 14 Jun 2017
Decided - Granted6/2019/1393/FULL
Erection of timber pergolas to rear gardens
30 Upland Drive Brookmans Park Hatfield AL9 6PT
Received 11 Jun 2019
Decided - Refused6/2018/0105/PN11
Prior Approval for change of use for offices (B1) to residential use (C3) creating 4 additional residential units (58 in total)
Inspira House Martinfield Welwyn Garden City AL7 1GW
Received 11 Jan 2018
Decided - Granted6/2022/1644/HOUSE
Single storey rear extension, garage conversion and loft conversion.
22 Queens Avenue Welwyn Garden City AL7 4BZ
Received 12 Jul 2022
Decided - Granted6/2017/1919/TPO
Fell 1 x Horse Chesnut tree (T13), Covered by TPO 70 - Dead & Dangerous
Potterells Management Company Ltd 11 Potterells Station Road Welham Green Hatfield AL9 7SL
Received 25 Aug 2017
Decided - Granted6/2025/0778/TPO
Dismantle one wind blown oak tree at the rear of the garden. Tree is dangerous and could fall the last 10-12 feet at any time. Tree to be cut approximately 5 foot back from the rear of the boundary to avoid further damage to the perimeter fence (TPO 716 2017 W1)
8 Carleton Rise Welwyn AL6 9RA
Received 25 Apr 2025
Decided - Granted6/2019/0009/HOUSE
Erection of a subterranean extension to facilitate swimming pool, Turkish bath, sauna, massage room and exercise room for the leisurely use of residents
37 The Ridgeway, Cuffley, Potters Bar, EN6 4BB
Received 3 Jan 2019
Decided - Refused6/2020/3092/HOUSE
Erection of a part single, part two storey rear extension, a single storey front extension and addition of windows and doors to side elevations following the demolition of the existing rear extension and front porch.
116 Harmer Green Lane Digswell Welwyn AL6 0ET
Received 20 Nov 2020
Decided - Granted6/2026/1234/EMT
1 x Silver maple (all tree works only over the garden of 5 Furzefield) to reduce to by 3m in height & reduce lateral branches by 2.5m
64 Holwell Road Welwyn Garden City AL7 3RN
Received 14 Jul 2026
Decided - Withdrawn6/2018/1901/LB
Internal alterations, alterations to openings and repairs to the Bothies
The Bothies and Walled Garden, North Mymms Park, North Mymms, AL9 7TR
Received 19 Jul 2018
Decided - Granted6/2018/3277/COND
Submission of details pursuant to condition 1(Remediation) 2 (External Lighting including vertical lux diagrams) 3(Soft and hard landscape) and 4 (specification of long term cycle storage/parking facility)on planning application 6/2018/2224/FULL
Little Ganett Welwyn Garden City AL7 3DG
Received 27 Dec 2018
Decided - Granted6/2021/1788/FULL
Installation of an air source heat pump.
Campus West The Campus Welwyn Garden City AL8 6BX
Received 9 Jun 2021
Decided - Granted6/2019/0523/EM
Erection of first floor rear extension and alterations to openings
56 Carve Ley Welwyn Garden City AL7 3HH
Received 7 Mar 2019
Decided - Refused6/2018/1770/HOUSE
Erection of fence following removal of existing wall
1A Northaw Road West Northaw Potters Bar EN6 4NW
Received 5 Jul 2018
Decided - Granted6/2025/1304/COND
Submission of details pursuant to condition number 24 (play strategy), on planning permission 6/2022/1375/MAJ
Land at Hollybush Lane, to the east of A1000 and north of Ascots Lane, Creswick, Welwyn Garden City
Received 20 Jun 2025
Decided - Granted6/2019/0126/EM
Installation of rear bifold doors, front door, rear and front windows
82 Broadwater Crescent Welwyn Garden City AL7 3TU
Received 21 Jan 2019
Decided - Granted6/2020/2470/HOUSE
Alterations to openings and fenestrations, replacement of balcony balustrade and extension of rear terrace
70A New Park Road Newgate Street Hertford SG13 8RF
Received 28 Sept 2020
Decided - Granted6/2016/1969/TPO
T1 Horse Chestnut reduce by 4-5m to redress balance following failure of crown, T2 Red Chestnut poor condition upper crown dead reduce into sound wood, T3 Ash thin re-growth from pollarded tree, T4 Picea (Spruce) remove deadwood, reduce back to clear building 2m, T5 Pine remove deadwood, reduce back to clear building 2m, T6 Sycamore - fell dead tree resting on adjacent tree covered by TPO 171 (1992)
Land at Claregate, Thornton Road, Little Heath, Potters Bar, EN6 1BY
Received 26 Sept 2016
Decided - Granted6/2022/0422/HOUSE
Erection of two storey rear extension.
19 Brookside Crescent Cuffley Potters Bar EN6 4QW
Received 23 Feb 2022

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