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

39,791Searchable applications

298Recorded as pending

86%Approval rate · 33,361 approved or refused records

4,769Refused applications

28,592 approved · 4,769 refused · 2,177 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 28 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedS6/2009/2523/FP
ERECTION OF SINGLE STOREY SIDE EXTENSION AND GARAGE
36 THE MEADWAY, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4ES
Received 11 Nov 2009
Decided - GrantedW6/2009/1193/EM
REPLACEMENT OF FRONT DOOR TO OUTHOUSE WITH NEW WINDOW AND BRICKWORK
20 HYDE VALLEY, WELWYN GARDEN CITY, HERTS, AL7 4NA
Received 3 Jun 2009
Appeal Decided - Allowed6/2024/0042/FULL
Change of use of existing stables with external alterations to form a 4 bedroom detached dwelling with associated car parking and use of existing vehicular access
Brocksfield Stables Homerswood Lane Welwyn AL6 9AD
Received 5 Jan 2024
Under Consideration6/2026/1203/HOUSE
Erection of a two storey side extension, front boundary fencing and a pedestrian gate.
6 Huggins Lane Welham Green Hatfield AL9 7LR
Received 8 Jul 2026
Decided - Granted6/2021/2276/HOUSE
Erection of an residential annex with integrated garden shed and erection of single storey rear extension onto the existing house.
14 The Drive Welwyn AL6 0TR
Received 29 Jul 2021
Decided - Refused6/2021/0314/FULL
Erection of a 5 bedroom detached house
22 Church Lane Northaw Potters Bar EN6 4NX
Received 2 Feb 2021
Decided - Granted6/2017/2251/HOUSE
Erection of two storey side extension and single storey rear extension
2 Cylers Thicket Welwyn AL6 9RS
Received 3 Oct 2017
Decided - GrantedW6/2008/1801/EM
ERECTION OF SINGLE STOREY AND PART TWO STOREY REAR EXTENSION
6 HIGH GROVE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7DW
Received 19 Sept 2008
Decided - GrantedS6/2013/1164/FP
Erection of single storey rear extension
77 Wellfield Road, HATFIELD, AL10 0BY
Received 3 Jun 2013
Decided - Granted6/2016/1902/FULL
Change of use of Station Master's House to Dry Cleaning reception and waiting area.
Welwyn North Station Harmer Green Lane Digswell Welwyn AL6 0AS
Received 14 Sept 2016
Decided6/2016/1427/PN11
Prior approval for the proposed change of use from office (class B1) to residential (class C3) to provide 50 residential units
Media House, Sopers Road, Cuffley, Potters Bar, EN6 4RY
Received 12 Jul 2016
Appeal Decided - DismissedN6/2014/1865/HH
Prior approval of a single storey rear extension
The Cottage 6 Wych Elm Lane Welwyn AL6 0BN
Received 19 Aug 2014
Decided - Granted6/2015/2086/TPO
Removal of Ivy from Ash tree and reduction of up to 3 lower branches - Conservation Area.
52 Lemsford Lane, Welwyn Garden City, AL8 6YJ
Received 7 Oct 2015
Decided - Granted6/2019/0158/EM
Formation of hardstanding and part removal of front boundary hedge
18 Youngs Rise Welwyn Garden City AL8 6RU
Received 24 Jan 2019
Decided - Granted6/2019/0265/HOUSE
Erection of front infill extension with roof amendments and alterations to openings
85 Holloways Lane, Welham Green, Hatfield, AL9 7NU
Received 5 Feb 2019
Decided - Granted6/2021/1146/HOUSE
Single storey front extension and alterations to fenestration on existing first floor front elevation
96 Briars Lane Hatfield AL10 8EY
Received 8 Apr 2021
Decided - Refused6/2019/0712/EM
Remove Hawthorn bushes
31 Marsden Road Welwyn Garden City AL8 6YQ
Received 25 Mar 2019
Decided - WithdrawnS6/2009/2752/MA
PROPOSED SITING OF 5 BLOCKS OF TEMPORARY BUILDINGS OF 2 STOREYS TO PROVIDE 240 STUDENT BEDROOMS
University Of Hertfordshire College Lane Hatfield AL10 9AB
Received 30 Dec 2009
Decided - Granted6/2026/1099/HOUSE
Erection of a single storey front extension with alterations to fenestration following the demolition of existing front porch
10 Windsor Close Welwyn AL6 9JZ
Received 25 Jun 2026
Decided - Refused6/2019/1003/ADV
Installation of 1x non-illuminated acrylic sign to cover redundant ATM
13 Stonehills Welwyn Garden City AL8 6ND
Received 25 Apr 2019
Decided - Refused6/2018/1749/LB
Erection of a single story rear extension and conversion of garage to habitable space
East House Digswell Place Rectory Road Welwyn Garden City AL8 7SU
Received 3 Jul 2018
Decided - Granted6/2022/0380/PN27
Prior approval for the construction of an additional storey on single storey dwelling
35 The Ridgeway Cuffley Potters Bar EN6 4BB
Received 17 Feb 2022
Decided - Granted6/2018/1495/FULL
12 month temporary extension for telecoms equipment
East Of England Ambulance Services Ascots Lane Welwyn Garden City AL7 4HL
Received 4 Jun 2018
Decided - Refused6/2026/0172/ADV
Installation of two non-illuminated displays, static advertisements on the external façades of The Galleria shopping centre, Hatfield. One PVC vinyl advertisement is proposed on the Comet Way elevation, mounted via a cable frame system fixed to the existing façade. One external mesh PVC advertisement is proposed on the Cavendish Way glazed façade, fixed directly to the existing façade structure. Both advertisements are flat-mounted, non-illuminated, static, and involve no projection beyond the building façade.
The Galleria Car Park Comet Way Hatfield AL10 0XR
Received 2 Feb 2026

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.
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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