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

40,297Searchable applications

283Recorded as pending

86%Approval rate · 33,821 approved or refused records

4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 9 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedW6/2015/0032/TE
Removal of Two Poplar trees
23 Barleycroft Road, Welwyn Garden City, AL8 6JX
Received 12 Jan 2015
Decided - Granted6/2016/1681/LAWP
Certificate of lawfulness for the conversion of loft with rear dormer
28 Frampton Road, Little Heath, Potters Bar, EN6 1JE
Received 16 Aug 2016
Decided - Granted6/2016/1018/HOUSE
Erection of a single storey rear extension following demolition of existing rear conservatory and alterations to openings
30 Longcroft Lane, Welwyn Garden City, AL8 6EA
Received 24 May 2016
Decided - Granted6/2019/2038/PN8
Prior approval the erection of single storey rear extension measuring 5.5m in depth, 4m in height and 3m to eaves
5 Boltons Cottages, Swanley Bar Lane, Little Heath, Potters Bar, EN6 1NS
Received 8 Aug 2019
Decided - Granted6/2018/2120/EM
Reduce 3 x Poplar trees back to previous reduction points to maintain a uniform height of 10 meters
16 Whitethorn Welwyn Garden City AL7 3EX
Received 14 Aug 2018
Decided - Withdrawn6/2019/2258/TPO
Reduce Crown 1x Beech by 2.5m in height and 1.5m in width
25 Oaklands Rise Welwyn AL6 0RN
Received 12 Sept 2019
Decided - GrantedN6/2014/1126/DS
Approval of details reserved by condition 2 (hard and soft landscaping) of Appeal Decision APP/C1950/A/13/2196624 (N6/2012/0650/MA)
Land at Great North Road Welwyn Garden City AL8 7TE
Received 15 May 2014
Decided - GrantedS6/2009/2451/DS
DISCHARGE OFCONDITION 2 (MATERIALS) OF PLANNING PERMISSION S6/2007/0134/FP
THE DAIRY, 8 HOME FARM ROAD, BROOKMANS PARK, HATFIELD, HERTS, AL9 7TP
Received 5 Nov 2009
Decided - Granted6/2021/2384/EM
Erection of two storey side extension and single storey rear extension.
31 Lemsford Lane Welwyn Garden City AL8 6YN
Received 12 Aug 2021
Decided - Granted6/2023/2306/EM
Erection of two storey rear extension and part garage conversion, to include raising of roof and insertion of rooflight, replacement doors and windows throughout and alterations to external openings to rear and side elevations
9 The Quadrangle, Welwyn Garden City, AL8 6SG
Received 15 Nov 2023
Decided - RefusedN6/2005/1583/FP
ERECTION OF TWO STOREY AND SINGLE STOREY REAR EXTENSIONS
59 Handside Lane Welwyn Garden City AL8 6SH
Received 22 Dec 2005
Decided6/2023/2333/TC
T1 Silver Birch crown reduction by 33%
37 Blakemere Road Welwyn Garden City AL8 7PQ
Received 20 Nov 2023
DecidedN6/2008/2160/TC
REDUCE AND SHAPE CROWN BY 30%.
11 GRAYSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4BL
Received 14 Nov 2008
Decided - Granted6/2025/0198/COND
Submission of details pursuant to condition number 5 (Drainage), on planning permission 6/2015/1983/FULL
Field View Court New Road Welwyn Garden City AL8 7TX
Received 5 Feb 2025
Decided - Granted6/2024/1251/COND
Submission of details pursuant to condition number 7 (Verification Report) on planning permission 6/2021/2747/MAJ
The Frythe Frythe Avenue Welwyn AL6 9GG
Received 4 Jul 2024
Under Consultation6/2026/1879/HOUSE
Erection of a single-storey rear and first-floor extension to the house
3 Hensley Close Welwyn AL6 9QD
Received 16 Oct 2026
Decided - Refused6/2016/0942/FULL
Change of use from amenity to residential land and enlargement of existing driveway
127 Cole Green Lane, Welwyn Garden City, AL7 3JF
Received 16 May 2016
DecidedN6/2008/1246/TC
POLLARD ALDER TREE
6 The Green Welwyn AL6 9EA
Received 30 Jul 2008
Appeal Decided - DismissedN6/2004/0906/FP
ERECTION OF PART TWO STOREY AND PART SINGLE STOREY REAR EXTENSION.
75 Wellcroft Road Welwyn Garden City AL7 3JX
Received 15 Jun 2004
Decided - Granted6/2019/0500/EM
Erection of single storey rear extension following removal of shed with alterations to openings
255 Handside Lane Welwyn Garden City AL8 6TF
Received 6 Mar 2019
Decided - Granted6/2017/0759/EM
To reduce 2 Oak trees by 25% for maintenance and light.
40 Digswell Road Welwyn Garden City AL8 7PA
Received 13 Apr 2017
Appeal Decided - DismissedN6/2008/0012/FP
ERECTION OF NEW DWELLING, FOLLOWING DEMOLITION OF EXISTING
THE HOLDINGS, BROCKET ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7TU
Received 4 Jan 2008
Decided - Granted6/2016/2727/HOUSE
Erection of front porch, demolition of conservatory, followed by erection of single storey rear extension with associated roof lights, erection of part side part rear first floor extension, and rear dormer with associated roof lights. Conversion of garage into habitable room.
125 Peplins Way Brookmans Park Hatfield AL9 7UT
Received 23 Dec 2016
Decided - Granted6/2016/2267/TPO
Removal of three limbs from Ash tree - Conservation Area
2 Fearnley Road Welwyn Garden City AL8 6HW
Received 28 Oct 2016

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