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

35,571Searchable applications

331Recorded as pending

86%Approval rate · 29,629 approved or refused records

4,007Refused applications

25,622 approved · 4,007 refused · 1,859 withdrawn. Received dates in our records: 29 Apr 1948 to 16 Oct 2026. Most recent record check: 23 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 Counts reflect the last collected status; some records may be out of date.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

Decided6/2022/2006/TC
T1 & T2 30% crown reduction on Acacia trees in rear garden
20 Walden Road Welwyn Garden City AL8 7PF
Received 30 Aug 2022
Decided - Granted6/2017/1067/HOUSE
Erection of new single storey summerhouse to rear of garden and following the demolition of existing garage shed
20 Astwick Avenue Hatfield AL10 9LA
Received 17 May 2017
Decided - Granted6/2015/2546/FULL
Erection of refuse store and substation building
71 Great North Road Hatfield AL9 5EN
Received 21 Dec 2015
Decided - Granted6/2018/0812/HOUSE
Erection of a single storey side and rear extension following demolition of existing greenhouse
3 Hill Leys Cuffley Potters Bar EN6 4QF
Received 27 Mar 2018
Decided - Refused6/2026/0769/LAWE
Certificate of existing lawfulness of an HMO
6 St Audreys Close Hatfield AL10 8UW
Received 1 May 2026
Decided - GrantedS6/2015/0463/AD
Installation of four illuminated fascia signs, two non illuminated fascia signs and two non illuminated other signs
Asda Superstore, 98 Town Centre, Hatfield, AL10 0JW
Received 4 Mar 2015
Decided - Granted6/2024/2018/FULL
Alterations to façade including alterations to openings, fenestration and installation of render
28 Station Road Cuffley Potters Bar EN6 4HE
Received 21 Oct 2024
Decided - GrantedC6/1988/1242/FP
Two storey rear extension and replacement garage
Red Lodge, High Road, Hatfield, AL9 6HU
Received 1 Jan 1988
Decided - Granted6/2016/1701/EM
Reduce Horse Chestnut tree located in front garden by 3m in height and 2m in width
2 Turmore Dale, Welwyn Garden City, AL8 6HS
Received 16 Aug 2016
Decided - Granted6/2016/1277/HOUSE
Erection of rear and side single storey extensions
46 Longlands Road, Welwyn Garden City, AL7 3PZ
Received 27 Jun 2016
Decided - Granted6/2021/3381/EM
Installation of a vehicular crossover and hardstanding to front
44 Mount Way Welwyn Garden City AL7 4LB
Received 1 Dec 2021
Decided - GrantedW6/2013/1714/EM
Retention of replacement boundary fencing, hedging and tree
32 Kirklands, Welwyn Garden City, AL8 7RD
Received 1 Aug 2013
Decided - GrantedN6/2013/2219/FP
Demolition of existing side extension and erection of single storey side extension along with alterations to roof and windows at single storey level
7 Densley Close, Welwyn Garden City, AL8 7JX
Received 14 Oct 2013
Decided - Granted6/2016/0853/TPO
T6 – Sweet chestnut – Crown reduction 30%, T7 – Hornbeam crown reduction 20%, T8 – Sweet chestnut – remove 3 lower branches over hanging rear garden, T9 – Ash – Fell – due to poor condition, T10 - Pine – Sever ivy and remove overextended branch, T11 - Ash - fell due to poor condition, T12 – Sycamore – sever ivy and crown reduce by 20%, T14 – Pine - sever ivy, T15 – Oak - crown reduce by 30 covered by TPO 203
14 Lower Mardley Hill Welwyn AL6 0SQ
Received 3 May 2016
Appeal Decided - Allowed6/2026/0299/HOUSE
Replacement windows and door to black, and the installation of air conditioning unit to first floor side elevation
6 Chelveston Welwyn Garden City AL7 2PW
Received 19 Feb 2026
Decided - Granted6/2023/1674/EMT
T1 Ash - reduce lower branches by 2m overhanging the neighbour's garden at No.42
40 Beehive Lane Welwyn Garden City AL7 4BP
Received 10 Aug 2023
Decided - GrantedN6/2008/0850/FP
ERECTION OF TWO STOREY REAR AND SINGLE STOREY SIDE EXTENSIONS
27 BLYTHWAY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1DJ
Received 29 May 2008
Decided - Granted6/2023/1973/FULL
Erection of a 4 bed detached dwelling following demolition of existing bungalow
61 Moffats Lane Brookmans Park AL9 7RT
Received 25 Sept 2023
Decided6/2020/0868/TC
Reduce 1 x Apple by 30%
90 Handside Lane Welwyn Garden City AL8 6SN
Received 14 Apr 2020
Decided - Granted6/2015/2432/EM
Removal of Rowan tree.
24 Rooks Hill, Welwyn Garden City, AL8 6ET
Received 1 Dec 2015
Decided - Withdrawn6/2017/2145/LAWE
Certificate of lawfulness for use of summerhouse as ancillary accommodation.
30 Astwick Avenue Hatfield AL10 9LA
Received 22 Sept 2017
Decided - Granted6/2020/0245/EM
Erection of single story side and rear extension with internal alterations and demolition of existing garage
581 Howlands Welwyn Garden City AL7 4HT
Received 28 Jan 2020
Under Consultation6/2026/1765/COND
Submission of details pursuant to Condition 5 (Drainage Scheme) 6 (Drainage During Demolition) and 11 (Surface Water Drainage Scheme) on planning permission 6/2024/2035/OUTLINE
St Christophers Nursing Home Drakes Way Hatfield AL10 8XY
Received 5 Oct 2026
Decided - Withdrawn6/2020/0901/COND
Submission of details pursuant to conditions 3 (Flood Risk Assessment), 4 (Surface Water Drainage Scheme), 6 (Demolition of Buildings) and 19 (Acoustic Fence) on planning permission 6/2019/1851/VAR, dated 09/01/2020
The Holdings Cole Green Lane Welwyn Garden City AL7 4AL
Received 20 Apr 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