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

19,726Searchable applications

298Recorded as pending

86%Approval rate · 15,928 approved or refused records

2,221Refused applications

13,707 approved · 2,221 refused · 1,003 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/2930/HOUSE
Erection of two storey rear extension, garage conversion, replacement of front porch and alterations to openings and roof.
66 Brookmans Avenue Brookmans Park Hatfield AL9 7QQ
Received 19 Dec 2017
Decided - Granted6/2018/3190/HOUSE
Formation of crossover and parking spaces with installation of charging station
8 Vine Close Welwyn Garden City AL8 7PS
Received 14 Dec 2018
Decided - Granted6/2026/1380/TPO
T1 - semi mature Oak tree - 10m in height - whole crown reduction by 1-2m to rebalance crown and bring back from neighbouring building. (covered by TPO 974 (2022) and TPO 445)
29 Hill Rise Cuffley Potters Bar EN6 4EH
Received 5 Aug 2026
Decided - Granted6/2018/1175/HOUSE
Erection of a single storey rear extension following demolition of existing conservatory
119 Warren Way Digswell Welwyn AL6 0DL
Received 4 May 2018
Decided - Granted6/2019/0322/HOUSE
Erection of single storey rear extension following demolition of conservatory and rear extension with alterations to openings
5 The Links Welwyn Garden City AL8 7DS
Received 12 Feb 2019
Decided - Granted6/2020/3425/HOUSE
Single storey side extension and addition of velux to loft
75 Brookside Crescent Cuffley Potters Bar EN6 4QP
Received 22 Dec 2020
Decided - Granted6/2021/3218/EM
Erection of a single storey rear extension
22 Fearnley Road Welwyn Garden City AL8 6HW
Received 10 Nov 2021
Decided - Granted6/2025/1999/EM
Re-rendering of house like for like
42 Handside Lane Welwyn Garden City AL8 6SJ
Received 17 Sept 2025
Decided - Granted6/2019/1031/LAWP
Certificate of lawfulness for change of use for conversion of existing garage into a dog grooming area
55 Sylvandale Welwyn Garden City AL7 2HS
Received 29 Apr 2019
Decided - Granted6/2022/1764/TPO
T1 - English Oak - tree is located on the right hand side of the front driveway of the property next to the house - tree is causing excessive shading of the house and is starting to overhang the house - 2m crown reduction and deadwood crown. T2 Beech - tree is located on the left hand side of the driveway - tree seems to be in decline quite a lot with a lot of dieback in the upper crown - 3 metre crown reduction, crown clean* and deadwood. T3 English Oak - tree is located In the rear garden of the property and is in close proximity to the building and is causing excessive shading to the property and the patio and lawn areas - 2metre crown reduction, crown clean* and deadwood. TPO 677 *remove deadwood and crossing limbs
10 Mardley Hill Welwyn AL6 0TN
Received 27 Jul 2022
Appeal Decided - Dismissed6/2023/2275/HOUSE
Installation of Skate Ramp and pergola for Roller Skating purposes
6 Blackthorn Road Welwyn Garden City AL7 3JS
Received 10 Nov 2023
Decided6/2025/0755/TC
1x Cotoneaster lacteus and 1x Sambucus Sieboldiana to be removed as detailed in the application to install a garden office 6/2025/0737/EM
61 Handside Lane Welwyn Garden City AL8 6SH
Received 22 Apr 2025
Decided - Refused6/2025/1764/COND
Submission of details pursuant to condition 3 (Materials), 4 (Hard and soft landscaping) and 6 (Refuse bin and recycling storage) on planning permission 6/2021/1282/FULL (Allowed at appeal APP/C1950/W/21/3279134)
Land adj 45 Dixons Hill Close Welham Green AL9 7EF
Received 18 Aug 2025
Decided6/2021/0698/TC
Reduce 2 x Lawson Cypress in rear by 2.5m height. Reduce 2 x Lawson Cypress in front by 1.5m height
6 Digswell Court Digswell Rise Welwyn Garden City AL8 7PR
Received 3 Mar 2021
Decided - Granted6/2020/2043/EMT
Reduce 1 x Lawson Cypress by 3m in height
1 The Orchard Welwyn Garden City AL8 7PL
Received 13 Aug 2020
Decided - Granted6/2025/0798/EM
Erection of a single storey rear extension and summerhouse
16 Marley Road Welwyn Garden City AL7 4BS
Received 28 Apr 2025
Appeal Decided - Withdrawn6/2023/0445/COND
Submission of details pursuant to condition 19 (flood risk) on planning permission S6/2015/1342/PP
Northaw And Cuffley Bowling Club King George V Playing Field Northaw Road East Cuffley Potters Bar EN6 4RD
Received 27 Feb 2023
Decided - Granted6/2021/1483/EM
Erection of a satellite dish, replacement of double glazed windows, replacement of front (street door), and installation of an external electric vehicle charging point.
51 Crossway Welwyn Garden City AL8 7ED
Received 11 May 2021
Decided - Granted6/2019/1117/FULL
Change of use of the first floor office space (use class B1) into 1 x dwelling (use class C3)
15 Church Street Welwyn AL6 9LN
Received 9 May 2019
Appeal Decided - Withdrawn6/2021/0545/HOUSE
Erection of two-storey side extension and alterations to openings
48 Brookside Crescent Cuffley Potters Bar EN6 4QN
Received 19 Feb 2021
Decided - Granted6/2024/1690/EMT
T1 1 x Ash to reduce by approximately 1.5m in both height and width. T2 1 x Ash (twin stem) to reduce by approximately 2m in height, 1.5m in width. T3 1 x Ash to reduce by approximately 2m in height, reduce lateral growth over lawn area by 2m, remaining width by 1.5m.
9 Handside Lane Welwyn Garden City AL8 6SE
Received 3 Sept 2024
Decided - Granted6/2023/0141/HOUSE
Insertion of front facing window to facilitate the conversion of garage into habitable space and installation of additional front hardstanding
26 Daffodil Close Hatfield AL10 9FF
Received 20 Jan 2023
Decided - Granted6/2022/2706/PN33
Change of use from commercial, business and service (Class E) to Dwellinghouses (Class C3) residential use to form one dwelling
4 Mimram Road Welwyn AL6 9HA
Received 29 Nov 2022
Decided - Granted6/2018/0962/HOUSE
Erection of front porch
5 Longmead Hatfield AL10 0AB
Received 11 Apr 2018

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