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28,970 approved · 4,816 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2015/1750/HOUSE
Retention of conservatory
2 Chipmunk Chase Hatfield AL10 9GH
Received 18 Aug 2015
Decided - Granted6/2018/2693/HOUSE
Erection of single storey rear extension, first floor side extension and installation of rear dormer
75 Mulberry Mead Hatfield AL10 9EH
Received 22 Oct 2018
Decided - GrantedN6/2008/2453/FP
ALTERATIONS TO GARAGE INCLUDING; CONVERSION OF GARAGE INTO HABITABLE ACCOMMODATION AND INSERTION OF WINDOW. INSERTION OF ROOFLIGHT TO REAR ELEVATION
17 MENDLESHAM, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2QG
Received 18 Dec 2008
Decided - Refused6/2020/2808/HOUSE
Erection of a single storey front extension
16 Primrose Close Hatfield AL10
Received 22 Oct 2020
Decided - Refused6/2022/2547/HOUSE
Erection of outbuilding following demolition of existing garage
1 Chennells Hatfield Hertfordshire AL10 9HZ
Received 7 Nov 2022
Decided - GrantedN6/2009/2096/TC
REDUCE NEW OAK TREE UPTO 10% REMOVE BUDDLEIA SHRUB AND REDUCE LAVATERIA SHRUB BY UPTO 10%
40 DIGSWELL ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PA
Received 28 Sept 2009
Decided - Granted6/2023/0911/FULL
Erection of 2x4-bed dwellings, following the demolition of the existing property
55 St Albans Road East Hatfield AL10 0EJ
Received 28 Apr 2023
Decided - GrantedN6/2008/0897/FP
ERECTION OF SINGLE STOREY REAR EXTENSION, FOLLOWING DEMOLITION OF CONSERVATORY AND PART GARAGE
41 DIGSWELL RISE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PP
Received 10 Jun 2008
Decided - GrantedS6/2004/0269/FP
ADDITION OF CHIMNEY TO REAR ELEVATION (RETROSPECTIVE APPLICATION)
23 Warwick Avenue Cuffley Potters Bar EN6 4RS
Received 20 Feb 2004
Decided - GrantedS6/2014/0491/DS
Dischage of conditions 13 (Surface Water Drainage Scheme) and 14 (Drainage Strategy) of S6/2013/0435/MA
University of Hertfordshire, College Lane, Hatfield, AL10 9AB
Received 10 Mar 2014
Decided - Refused6/2022/2665/HOUSE
Erection of two storey side extension
3 Park Road Northaw Potters Bar EN6 4NU
Received 23 Nov 2022
Decided - RefusedS6/2015/0922/HH
Prior approval of a single storey rear extension
54 Wildhill Road, Hatfield, AL9 6DS
Received 29 Apr 2015
Decided - GrantedW6/2006/0220/EM
ERECTION OF SINGLE STOREY REAR EXTENSION
62 Wellcroft Road, Welwyn Garden City, AL7 3JY
Received 21 Feb 2006
Decided - Granted6/2021/0386/TPO
G1 - Works to trees within TPO 640 (2017) G1: - Crown lift trees in wooded area (mix of deciduous + larch/yew) to 2m. - Trim, shape and reduce by 1.5m to row of Hollys - Trim, shape and tidy Rhododendron and other small shrubs and bushes. G2 - Work to hedge within TPO 640 (2017) G2: - Remove possible Boxwood or mixed hedge in rear garden and replace with Cherry Laurel - Trim back Ivy on boundary G3 - Work to hedge within TPO 650 (2017) G1: - Remove Yew hedge (approx 6m L x 0.3m W x 1.5m H).
11A Heath Road Welwyn AL6 0TP
Received 8 Feb 2021
Decided - Refused6/2016/0918/FULL
Change of use from amenity to residential and formation of hardstanding
149 Cole Green Lane, Welwyn Garden City, AL7 3JG
Received 11 May 2016
Decided - GrantedS6/2013/0650/FP
Erection of porch, two storey side extension and part two storey, part single storey rear extension including ground floor annex following the demolition of existing outbuildings
12 Skimpans Close, Welham Green, HATFIELD, AL9 7PB
Received 26 Mar 2013
Decided - GrantedW6/2004/1671/EM
FORMATION OF VEHICLE HARDSTANDING
198 Handside Lane, Welwyn Garden City, AL8 6TD
Received 11 Nov 2004
Decided - WithdrawnS6/2007/1661/FP
DEMOLITION OF EXISTING DWELLING AND ERECTION OF DETACHED CHALET BUNGALOW WITH NEW VEHICLE ACCESS
31 KING JAMES AVENUE, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4LN
Received 6 Nov 2007
Decided - Granted6/2017/2599/EM
Erection of single storey rear extension and side extension with first floor side extension
14 Crossway Welwyn Garden City AL8 7EE
Received 8 Nov 2017
Decided - Granted6/2022/2881/HOUSE
Erection of a part single, part two storey rear extension and part single, part two storey side extension following removal of existing conservatory
15 High Oaks Road Welwyn Garden City AL8 7BJ
Received 21 Dec 2022
Decided - Granted6/2022/2259/FULL
Installation of 3 electric vehicle chargers and associated electrical feeder pillar
The White Hart 2 Prospect Place Welwyn AL6 9EN
Received 29 Sept 2022
Decided6/2026/0233/TC
1 x Cherry plum to reduce overlong branches by around 1.5m, lift to around 3m above ground level. Remove around 25% of water shoots from within canopy. To improve aesthetic appearance of the tree 1 x Crab apple to reduce by around 2m height and 1.2m width over lawn area, reduce section of neighbouring garden by 1.5m - to maintain size, reduce impact on neighbour
142 Parkway Welwyn Garden City AL8 6HP
Received 9 Feb 2026
Decided - Granted6/2026/1309/HOUSE
Erection of single storey front extension, two storey side extension, part single and part two storey rear extension, hip to gable roof extension with rear box dormer and two rooflights to the front roof slope
61 Peplins Way Brookmans Park AL9 7UR
Received 27 Jul 2026
Decided - Granted6/2022/2910/COND
Submission of details pursuant to condition number 3 (parking safety measures) and 4 (visitor spaces) on planning permission 6/2022/0824/RM
Roundhouse Farm Land Off Bullens Green Lane Colney Heath
Received 29 Dec 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.
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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