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

40,250Searchable applications

321Recorded as pending

86%Approval rate · 33,746 approved or refused records

4,812Refused applications

28,934 approved · 4,812 refused · 2,213 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/0576/EM
Installation of a solar panels to roof
2 Fern Grove, Welwyn Garden City, AL8 7ND
Received 26 Mar 2025
Decided - Granted6/2022/0449/EM
Erection of single storey rear extension and front porch
22 Mountway Close Welwyn Garden City AL7 4JZ
Received 24 Feb 2022
Decided - Refused6/2021/3064/ADV
Installation of 1 x non-illuminated fascia sign, 2 x non-illuminated signage boards, 2 x vinyl signs and 1 x internally illuminated freestanding sign. 1 x new lantern and 11 x new led floodlights.
The Chequers 16 London Road Knebworth SG3 6JP
Received 26 Oct 2021
Decided - RefusedS6/2009/1317/FP
ERECTION OF A TWO STOREY SIDE AND FIRST FLOOR FRONT EXTENSIONS
1 HORNBEAM LANE, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 6JF
Received 19 Jun 2009
Decided - Granted6/2019/0703/EM
Erection of summerhouse
31 Sandpit Road Welwyn Garden City AL7 3TW
Received 25 Mar 2019
Decided - GrantedS6/2008/2211/DS
DISCHARGE OF CONDITION 3 (PARKING SCHEME) OF PLANNING PERMISSION S6/2008/0923/FP
7 Tolmers Gardens, Potters Bar, EN6 4JE
Received 21 Nov 2008
Decided - Granted6/2017/2744/HOUSE
Erection of single storey front and side extension including installation of 3 x side roof lights.
38 Parsonage Lane Welham Green Hatfield AL9 7LU
Received 23 Nov 2017
Decided - Granted6/2025/0787/VAR
Variation of condition 7 (Arboricultural Method Statement and Tree Protection Plan) and 10 (Drawing Numbers) on planning permission 6/2024/0607/FULL
Land at The Warren 8 Carbone Hill Northaw Potters Bar EN6 4PL
Received 28 Apr 2025
Decided - GrantedS6/2015/0765/LUE
Certificate of lawfulness for existing House in Multiple Occupation (C4)
59 Hazel Grove Hatfield AL10 9DJ
Received 9 Apr 2015
Decided - Granted6/2021/3128/HOUSE
Erection of a single storey side extension with front porch and a single storey rear extension, insertion of 2 x port windows to front and rear, insertion of 1 x rooflight to flank roof, alterations to fenestration and change of external materials
59 Brookside Crescent Cuffley Potters Bar EN6 4QP
Received 2 Nov 2021
Decided - Granted6/2026/1004/EM
Installation of EV charger
4 Walnut Court Welwyn Garden City AL7 4EZ
Received 8 Jun 2026
Appeal Decided - AllowedS6/2007/0982/FP
ERECTION OF A SINGLE STOREY FRONT EXTENSION
106 Tolmers Road Cuffley Potters Bar EN6 4JJ
Received 28 Jun 2007
Decided - GrantedS6/2006/0669/FP
CONVERSION OF INTERNAL COURTYARD TO HABITABLE ROOM INCORPORATING GLAZED PITCHED ROOF.
37 The Ryde Hatfield AL9 5DQ
Received 25 May 2006
Decided - GrantedN6/2004/1387/FP
ERECTION OF FIRST FLOOR REAR EXTENSION AND DETACHED OUTBUILDING
8 Brockett Close Welwyn Garden City AL8 7BN
Received 15 Sept 2004
Decided - Granted6/2015/2132/RM
Approval of reserved matters (appearance, landscaping layout and scale) for the erection of 64no bed, three storey elderly residential care home with associated parking and landscaping following approval of outline planning permission N6/2011/0359/OP
Queen Elizabeth II Hospital, Howlands, Welwyn Garden City, AL7 4HQ
Received 15 Oct 2015
Decided - GrantedN6/2007/0837/FP
ERECTION OF SINGLE STOREY REAR EXTENSION AND RAISING OF GARAGE ROOF
18 Turmore Dale, Welwyn Garden City, AL8 6HS
Received 1 Jun 2007
Decided - Withdrawn6/2015/2169/LB
Change of use from a vacant station masters house to class use A5 (hot food take-away). Erection of a 1.2m dwarf wall, lowering of ground floor roof, installation of an extract duct behind parapet wall together with elevational alterations including provision of an access ramp and erection of fascia signage with 3no LED lights.
Station Master's House 15 Harmer Green Lane Digswell Welwyn AL6 0AS
Received 13 Nov 2015
Decided - GrantedW6/2007/0766/EM
INSTALLATION OF 3 ROOFLIGHTS AND REMOVAL OF CHIMNEY STACK
23 Beehive Green, Welwyn Garden City, AL7 4BG
Received 17 May 2007
Decided - GrantedN6/2014/0538/DS
Discharge of condition 3 (materials) of planning permission N6/2013/1994/DE
The Frythe, 5 Digswell Hill, Welwyn, AL6 9AR
Received 17 Mar 2014
Decided - GrantedS6/2015/0944/FP
Erection of rear conservatory
109 Hatfield Road, Little Heath, Potters Bar, EN6 1HZ
Received 1 May 2015
Decided - GrantedS6/2009/2668/LU
ERECTION OF A SINGLE STOREY REAR EXTENSION
44 OAK GROVE, HATFIELD, HERTFORDSHIRE, AL10 8DN
Received 9 Dec 2009
Decided6/2023/0716/TC
Fell Elm tree to ground level due to early stages of Dutch Elm disease
88 The Vineyard Welwyn Garden City AL8 7PU
Received 30 Mar 2023
Appeal Decided - Dismissed6/2020/0800/HOUSE
Replacement of existing stable block
1 Reynards Road Welwyn AL6 9TR
Received 29 Mar 2020
Decided - Granted6/2020/2170/COND
Submission of details pursuant to condition 18 (bird and bat box details) on planning permission 6/2019/1067/MAJ
Hill-Top Neighbourhood Centre High View Hatfield AL10 8HZ
Received 26 Aug 2020

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