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

21,021Searchable applications

298Recorded as pending

86%Approval rate · 16,978 approved or refused records

2,406Refused applications

14,572 approved · 2,406 refused · 1,077 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/0728/TPO
Fell 1 x Lime Tree [T1] Reduce 4 x Lime Trees [ T2 - T5]
90 Moffats Lane Hatfield AL9 7RW
Received 16 Mar 2020
Decided - Granted6/2022/2411/HOUSE
Insertion of high level window to first floor side elevation, insertion of rooflights to rear roof slope and a log burner flue to front roof slope.
45 Codicote Road Welwyn AL6 9TT
Received 17 Oct 2022
Decided - Granted6/2017/2673/EM
Reduce 1 x Maple tree by 30 %
6 Marsden Close Welwyn Garden City AL8 6YE
Received 15 Nov 2017
Decided - Granted6/2023/0698/HOUSE
Alterations to first floor fenestration
76 Brookside Crescent Cuffley Potters Bar EN6 4QJ
Received 28 Mar 2023
Decided - Granted6/2018/2941/EM
Erection of a single storey rear extension following the demolition of existing conservatory
2 Elm Gardens Welwyn Garden City AL8 6RY
Received 15 Nov 2018
Decided - Granted6/2019/2263/FULL
Formation of outdoor horse riding area (manege)
Digswell Place Stables Digswell Place Rectory Road Welwyn Garden City AL8 7SU
Received 10 Sept 2019
Decided - Granted6/2020/0649/EM
T1 - Reduce 1x Ash tree by 30% T2 - Remove regrowth from ash stump T3 - Reduce 1 x Hawthorn by 30% T4 - Fell 1 x Ash tree
10 Barleycroft Green Welwyn Garden City AL8 6JY
Received 9 Mar 2020
Decided - Granted6/2024/2072/HOUSE
Erection of a single storey side and rear extensions
8 Bushey Close Welwyn Garden City AL7 3HD
Received 28 Oct 2024
Decided - Granted6/2020/1408/HOUSE
Alterations to existing garage openings to form one large garage door opening
3 High Grove Welwyn Garden City AL8 7DW
Received 17 Jun 2020
Decided - Granted6/2021/3298/LAWE
Certificate of lawfulness for the existing stables building and land as a non-commercial equestrian facility
Brocksfield Stables Homerswood Lane Ayot St Peter Welwyn AL6 9AD
Received 22 Nov 2021
Decided - Granted6/2021/1871/COND
Submission of details pursuant to conditions 1 (no development above ground level- materials) and 3 (additional drawings), on planning permission 6/2020/3006/HOUSE
Ayot Cottage Hill Farm Lane Welwyn AL6 9BT
Received 17 Jun 2021
Decided - Granted6/2019/0731/HOUSE
Erection of rear conservatory
5 Victoria Close Welwyn Garden City AL7 4EL
Received 27 Mar 2019
Decided - Granted6/2022/2328/EM
Erection of a garden office to south east corner of the rear garden
5 Farm Close Welwyn Garden City AL8 6RP
Received 5 Oct 2022
Decided6/2024/1559/TC
1 x London plane tree - crown lifting to 4.5m and removal of dead wood in tree
10 Beehive Green Welwyn Garden City AL7 4BE
Received 15 Aug 2024
Decided - Withdrawn6/2018/1164/FULL
Erection of acoustic housing for existing pressure wash and the installation of biological washdown water treatment and recycling system.
50 Reynards Road Welwyn AL6 9TP
Received 3 May 2018
Decided - Granted6/2018/1080/EM
Fell 3 x Sycamore trees (T1, T3, T4) and 1 x Stag Horn tree (T2)
66 Lodgefield Welwyn Garden City AL7 1SE
Received 25 Apr 2018
Decided - Granted6/2021/1888/COND
Submission of details pursuant to condition 1 (internal noise), on planning application 6/2018/2863/FULL
36 The Ridgeway Cuffley Potters Bar EN6 4AX
Received 21 Jun 2021
Decided - Refused6/2020/0378/COND
Submission of details pursuant to condition 1(Construction Management Plan) 3 (Replacement hard play sports pitches) on application 6/2019/0085/MAJ
Chancellors School, Pine Grove, Brookmans Park, Hatfield, AL9 7BN
Received 11 Feb 2020
Decided - Refused6/2019/2534/HOUSE
Erection of single storey side and rear extension, following demolition of conservatory with alterations to openings and installation of 2x roof lights, conversion of garage to habitable space and erection of garden wall with access gate
5 Dowley Wood Welwyn Garden City AL7 1FL
Received 9 Oct 2019
Decided - Granted6/2018/0401/EM
Replacement front door
291 Knightsfield Welwyn Garden City AL8 7NH
Received 8 Feb 2018
Decided - Granted6/2018/1054/EM
Fell 1 x Oak tree (T1)
12 Sherrardspark Road Welwyn Garden City AL8 7JP
Received 23 Apr 2018
Decided - Refused6/2020/0022/HOUSE
Erection of a first floor rear extension
6 Colesdale Cuffley Potters Bar EN6 4LQ
Received 8 Jan 2020
Decided - Refused6/2021/0768/EMH
Erection of a front porch and single storey rear extension
31 Mountway Close Welwyn Garden City AL7 4JZ
Received 9 Mar 2021
Decided - Refused6/2023/2403/EM
Installation of hardstanding to front garden following removal of existing hedge
116 Haldens, Welwyn Garden City, AL7 1DG
Received 29 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