England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates

40,295Searchable applications

322Recorded as pending

86%Approval rate · 33,786 approved or refused records

4,816Refused applications

28,970 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/0893/EMT
65ft Copper Beech to reduce by 25%
2 Elm Gardens Welwyn Garden City AL8 6RY
Received 15 May 2025
Decided - Granted6/2022/0738/HOUSE
Erection of single storey rear extension, with insertion of roof lights, removal of balcony and addition of Juliette balcony
8 Groom Place Welwyn Garden City AL7 1GG
Received 28 Mar 2022
Decided - Granted6/2021/1869/HOUSE
Erection of single storey side extension.
1 Warren Green Hatfield AL10 0AJ
Received 17 Jun 2021
Decided - GrantedN6/2008/1671/FP
ERECTION OF SINGLE STOREY AND TWO STOREY REAR EXTENSIONS AND INSTALLATION OF ROOF LIGHTS TO REAR ELEVATION AND REPLACEMENT GARAGE, FOLLOWING DEMOLITION OF EXISTING REAR EXTENSION AND TIMBER GARAGE
23 BLAKEMERE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PQ
Received 23 Aug 2008
Decided - Granted6/2015/2235/EM
Formation of hardstanding
6 Stanborough Green, Welwyn Garden City, AL8 6XG
Received 3 Nov 2015
Decided - GrantedS6/2007/0546/FP
ERECTION OF TWO STOREY REAR EXTENSION, CREATION OF LIGHTWELL ON FIRST FLOOR, CREATION OF DOUBLE DOORS TO EXISTING CONSERVATORY AND INTERNAL ALTERATIONS.
The Lodge 2 Northaw Place Coopers Lane Northaw Potters Bar
Received 3 Apr 2007
Decided - Granted6/2022/0312/TC
Reduce oak tree by 10%
27 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 10 Feb 2022
Decided - Refused6/2023/2308/PN8
Prior approval for the erection of a single storey rear extension measuring 8m in depth, 3m in height and 3m to the eaves
70 Hill Rise Cuffley Potters Bar EN6 4RG
Received 15 Nov 2023
Decided - Withdrawn6/2019/2061/HOUSE
Erection of single storey side, rear and two storey side extensions
1 Stonecross Road Hatfield AL10 0HR
Received 19 Aug 2019
Decided - Granted6/2017/2603/EM
Replacement of front door
19 Reddings Welwyn Garden City AL8 7LA
Received 7 Nov 2017
Decided - Granted6/2026/0153/COND
Submission of details pursuant to condition number 1 (Tree protection measures), 2 (Integrated bird boxes), 3 (Proposed balustrade) and 4 (Hard and soft landscaping) on planning permission 6/2024/0160/FULL
St Andrews Care Home Great North Road Welwyn Garden City AL8 7SR
Received 29 Jan 2026
Decided - GrantedS6/2008/0805/FP
ERECTION OF FIRST FLOOR REAR EXTENSION
4 TWYSDENS TERRACE, DELLSOME LANE, WELHAM GREEN, HATFIELD, HERTFORDSHIRE, AL9 7DJ
Received 23 May 2008
Decided - RefusedS6/2009/2005/FP
ERECTION OF TWO STOREY AND SINGLE STOREY FRONT, SIDE AND REAR EXTENSIONS
41 STAG GREEN AVENUE, HATFIELD, HERTFORDSHIRE, AL9 5EB
Received 15 Sept 2009
Decided - Refused6/2024/0927/COND
Submission of details pursuant to Condition 5 (EV Charging), 6 (Energy Statement), 7 (Hard & Soft Landscaping), 8 (Materials), 9 (Refuse Store), and 10 (Surface Water Drainage), on Planning permission 6/2023/0907/FULL
59 New Road Digswell Welwyn AL6 0AL
Received 20 May 2024
Decided - Granted6/2018/2064/HOUSE
Erection of front canopy, front garage extension, single and double storey rear extensions
14 Brookside Hatfield AL10 9RR
Received 8 Aug 2018
Decided - Granted6/2019/2945/PN15
Prior approval for the installation of a telecommunications apparatus and support structure onto building roof top and ancillary works
Trident Place, Unit 3 Mosquito Way Hatfield AL10 9BW
Received 22 Nov 2019
Decided - Granted6/2016/1745/FULL
Retention of an Automated Teller Machine
25-27 Cole Green Lane, Welwyn Garden City, AL7 3PP
Received 24 Aug 2016
Decided - Refused6/2017/0643/HOUSE
Erection of part first floor rear infill extension
70 Upperfield Road Welwyn Garden City AL7 3LW
Received 29 Mar 2017
Decided - Granted6/2016/0433/EM
Erection of a single storey rear extension
55 Beehive Lane, Welwyn Garden City, AL7 4BJ
Received 14 Mar 2016
Decided - GrantedW6/2007/0431/EM
ERECTION OF FIRST FLOOR REAR EXTENSION. INSERTION OF NEW WINDOW AT FIRST FLOOR IN SIDE ELEVATION AND ALTERATIONS TO REAR ELEVATION.
8 Longcroft Lane, Welwyn Garden City, AL8 6EA
Received 14 Mar 2007
Decided - GrantedW6/2015/0291/TE
Removal of Cherry tree
41 Barleycroft Road, Welwyn Garden City, AL8 6JX
Received 13 Feb 2015
Decided - GrantedW6/2013/1163/TE
Removal of Two dead Cherry trees located in rear garden
49 Peartree Lane, WELWYN GARDEN CITY, AL7 3UA
Received 7 Jun 2013
Decided - Refused6/2021/1602/LAWP
Certificate of lawfulness for the conversion of the garage into habitable space and erection of front porch.
8 Skimpans Close Welham Green Hatfield AL9 7PB
Received 19 May 2021
Decided - Granted6/2022/2577/EMT
Removal of sycamore tree and 6 conifers
29 Beehive Lane Welwyn Garden City AL7 4BJ
Received 11 Nov 2022

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

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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