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

21,554Searchable applications

298Recorded as pending

86%Approval rate · 17,445 approved or refused records

2,476Refused applications

14,969 approved · 2,476 refused · 1,105 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/2482/HOUSE
Erection of a two storey and single storey rear extension with single storey front extension.
22 Salisbury Road Welwyn Garden City AL7 3SD
Received 28 Oct 2022
Decided - Granted6/2019/1428/EM
Erection of a single storey rear extension
1 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 12 Jun 2019
Decided - Granted6/2019/0739/HOUSE
Erection of side and rear extensions, increase in ridge height and installation of front and rear dormers to facilitate a loft conversion
75 King James Avenue Cuffley Potters Bar EN6 4LW
Received 28 Mar 2019
Decided - Granted6/2021/1714/HOUSE
Erection of two storey rear extension to include raised steps, alterations to openings on existing side and rear elevations.
43 Meadway Welwyn Garden City AL7 4NQ
Received 28 May 2021
Decided - Granted6/2024/1417/LAWP
Certificate of lawfulness for a proposed front porch
29 Warren Close Hatfield AL10 0AL
Received 25 Jul 2024
Decided - Granted6/2018/2390/FULL
Installation of Air Conditioning
Pizza Hut 46 The Common Hatfield AL10 0LU
Received 18 Sept 2018
Decided6/2024/1872/TC
T1 x Corkscrew willow to reduce by 2m in height and 1.2m in width T1 x Robinia to reduce by 1.5m in both height and width
108 Handside Lane Welwyn Garden City AL8 6SY
Received 30 Sept 2024
Decided - Granted6/2024/1363/FULL
Change of use of the property from hotel (Use Class C1) to hostel (Sui Generis) for a temporary period until 31st March 2026
Beales Hotel Comet Way Hatfield AL10 9NG
Received 17 Jul 2024
Decided - Refused6/2019/1892/EM
Enlargement of driveway and soft landscaping
9 Beehive Lane Welwyn Garden City AL7 4BB
Received 2 Aug 2019
Decided - Granted6/2023/0030/HOUSE
Erection of a single storey rear extension with flat roof
128 Thistle Grove Welwyn Garden City AL7 4AQ
Received 5 Jan 2023
Decided6/2019/2179/TC
Fell 2 x Norway Spruce tree (replacement) Remove crown 1 x Copper Beech tree by 2m Remove dead wood from 1 x Sessile Oak tree Remove dead wood from 1 x Pedunculate Oak tree
2 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 27 Aug 2019
Decided - Granted6/2022/0890/COND
Submission of details pursuant to condition 1 (types and colours of external finishes) on planning application 6/2021/2652/HOUSE
Little House West End Lane Essendon Hatfield Hertfordshire AL9 6AU
Received 13 Apr 2022
Decided - Refused6/2019/2642/HOUSE
Erection of a side conservatory
46 Kirklands Welwyn Garden City AL8 7RD
Received 21 Oct 2019
Decided - Refused6/2023/2514/COND
Submission of details pursuant to condition number 7 (parking), on planning permission 6/2022/1774/RM
Land to the north east of King George V Playing Fields Northaw Road East Hertfordshire Cuffley EN6 4RD
Received 18 Dec 2023
Decided - Granted6/2025/1612/EMT
Removal of European Spruce tree. The tree is exhibiting significant lopsided growth and its proximity poses a potential hazard to both our property and the neighbouring bungalow
104 Howlands Welwyn Garden City AL7 4RG
Received 28 Jul 2025
Decided6/2020/2354/EIA
Request for a screening opinion to determine whether an Environmental Statement is required for a proposed redevelopment of BioPark, Broadwater Road, Welwyn Garden City, AL7 3AX
Biopark Broadwater Road, Welwyn Garden City, AL7 3AX
Received 11 Sept 2020
Decided - Granted6/2021/1056/EMT
Reduce Leyland Cypress tree by 80%
12 Handside Close Welwyn Garden City AL8 6SR
Received 30 Mar 2021
Decided - Granted6/2024/1990/TPO
13 x multi-stemmed beech (Fagus sylvatica) trees to the front of the property to be crown reduced by 20% and deadwood removed TPO 641 (2017) G6
31 Mardley Hill Welwyn AL6 0TT
Received 16 Oct 2024
Decided - Granted6/2026/1424/VAR
Variation of Condition 1 (Arboricultural Method Statement and Tree Protection Plan) and Condition 2 (External Materials) on planning permission 6/2025/0927/HOUSE
18 Birchwood Close Hatfield AL10 0PP
Received 12 Aug 2026
Decided - Granted6/2023/0361/EMT
Reduce 1 x Sycamore by 25%
5 Longcroft Lane Welwyn Garden City AL8 6EB
Received 16 Feb 2023
Decided - Granted6/2020/0084/TPO
Reduce 1x Pine tree by approximately 30%
9 The Drive Welwyn AL6 0TW
Received 14 Jan 2020
Decided - Granted6/2021/2804/FULL
Erection of a three storey, 5-bed, detached dwelling with associated outbuilding and new access following demolition of existing detached dwelling
106 Harmer Green Lane Digswell Welwyn AL6 0ET
Received 29 Sept 2021
Decided - Refused6/2020/3181/HOUSE
Erection of a single storey rear extension, front porch extension, garage conversion, loft conversion including dormer to rear, insertion of upper floor side window
371 St Albans Road West Hatfield AL10 9RU
Received 26 Nov 2020
Decided - Granted6/2019/0538/HOUSE
Erection of single storey rear extension and loft conversion to habitable space following demolition of rear conservatory
16 Pine Grove, Brookmans Park, Hatfield, AL9 7BS
Received 8 Mar 2019

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