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

19,588Searchable applications

298Recorded as pending

86%Approval rate · 15,822 approved or refused records

2,205Refused applications

13,617 approved · 2,205 refused · 993 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 12 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2026/1210/LAWE
Certificate of lawfulness for the existing use of the property as a HMO (Use Class C4) in continuous use for over 10 years
9 Flamingo Close Hatfield AL10 9LU
Received 10 Jul 2026
Decided - Granted6/2023/0776/HOUSE
Erection of a two storey front extension and a single storey rear extension
16 Starling Lane Cuffley Potters Bar EN6 4JX
Received 6 Apr 2023
Decided - Granted6/2024/2241/EM
Installation of solar panels
10 Woodland Rise Welwyn Garden City AL8 7LF
Received 21 Nov 2024
Decided - Withdrawn6/2019/1149/HOUSE
Conversion of existing barn into an annex
Upper Cromer Hyde Farm Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE
Received 13 May 2019
Decided - Granted6/2024/0606/EM
To create disability access to the front of the property
51 Crossway Welwyn Garden City AL8 7ED
Received 28 Mar 2024
Decided6/2023/1117/TC
1 x Rowan to fell to ground level. Tree is dead 1 x Lilac to reduce by 1m to alleviate weak unions 1 x Beech to reduce to 2m above ground level. Outgrown hedge section
5 Handside Green Welwyn Garden City AL8 6SQ
Received 25 May 2023
Decided - Refused6/2018/3114/HOUSE
Erection of two storey front, single storey side, first floor rear, part single part two storey rear extensions including alterations to openings and erection of garage following demolition of existing garage
22 Reynards Road Welwyn AL6 9TP
Received 6 Dec 2018
Decided - Refused6/2026/1389/HOUSE
Erection of part two-storey, part single storey rear and side extensions, single storey front extension, alterations to the roof including rear dormers and front rooflights and alterations to openings following demolition of detached garage
33 Roe Green Lane Hatfield AL10 0SH
Received 5 Aug 2026
Decided - Granted6/2025/2106/TPO
1x Oak to Lift lower branches to achieve a ground clearance of 6m above ground level by removing secondary branches only to allow more light into all gardens
590 Howlands Welwyn Garden City AL7 4ET
Received 2 Oct 2025
Decided - Refused6/2023/2324/LB
Garden wall pointing, buttresses and repair of small hole in wall
3 Stud Farm Cottages Judge's Hill Northaw Potters Bar EN6 4NN
Received 17 Nov 2023
Decided6/2019/0195/TPO
Semipollard 1 x Willow tree back to same pruning points - covered by conservation area
18 Sheepcote Welwyn Garden City AL7 4QD
Received 30 Jan 2019
Decided - Granted6/2019/1058/EM
Reduce Blue Cedar Fir tree by 30%
13 The Old Drive Welwyn Garden City AL8 6TB
Received 1 May 2019
Decided - Granted6/2025/0206/PN24
The proposed works is for the installation of a roof mounted solar PV system
Silver Court Watchmead Welwyn Garden City AL7 1LT
Received 6 Feb 2025
Decided - Granted6/2023/1780/COND
Submission of details pursuant to condition 4 (hard and soft landscaping) on planning permission 6/2023/0096/FULL
104 Brookmans Avenue Brookmans Park AL9 7QQ
Received 24 Aug 2023
Decided - Granted6/2019/1937/VAR
Variation of condition 2 (Plans) on planning permission application 6/2017/2107/FULL
37 Church Street Welwyn AL6 9LS
Received 7 Aug 2019
Decided - Granted6/2024/0438/TPO
T1 Pine- Remove lower secondary growth up to 4m and to remove 1-2m from the western side to balance crown. The tree is growing over the car park for Welwyn Golf Course which is touching the phone lines located inside car park.
32 High Oaks Road Welwyn Garden City AL8 7BH
Received 6 Mar 2024
Decided - Granted6/2025/0725/EM
Installation of air source heat pump (Vaillant aroTHERM plus 7kW) with cover (amended application following previous refused application 6/2025/0091/EM). Also approval for previously installed car charger
162 Daniells Welwyn Garden City AL7 1QW
Received 16 Apr 2025
Decided - Granted6/2025/1310/HOUSE
Erection of a single storey rear extension
60 Rivenhall End Welwyn Garden City AL7 2PH
Received 23 Jun 2025
Decided - Granted6/2020/1951/HOUSE
Erection of a loft extension involving the insertion of three roof-lights and an obscured side window.
65 Calder Avenue Hatfield AL9 7AJ
Received 6 Aug 2020
Decided - Granted6/2023/1026/PN15
Prior approval for the erection of a 15.0m Phase 8 monopole and associated ancillary works.
Land adjacent to the A1000 Welwyn AL6 9EP
Received 15 May 2023
Decided6/2026/1208/TC
1 x Ash to reduce canopy by 2.5m height & width.
70 Valley Road Welwyn Garden City AL8 7DP
Received 10 Jul 2026
Under Consideration6/2022/2075/COND
Submission of details pursuant to condition 2 (hard and soft landscaping) on planning permission N6/2013/2563/DE
The Frythe 5 Digswell Hill Welwyn AL6 9AR
Received 7 Sept 2022
Decided - Withdrawn6/2023/0734/HOUSE
Erection of single storey rear extension, first floor side extension to both sides & front single storey extension
1 Dewars Close Welwyn AL6 9RR
Received 3 Apr 2023
Decided - Refused6/2023/2352/LB
Internal & external alterations including: existing windows, door & wall removed to rear elevation to form opening for proposed bi-fold doors. Existing wall to be removed to form opening. Existing doors & wall to be removed to form dining area. Existing doors on first floor removed and openings in-filled, proposed wall & doors to form wardrobe. Existing wall to be removed to form larger en-suite.
20 Danesbury Park North Ride Welwyn AL6 9SA
Received 22 Nov 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