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28,970 approved · 4,816 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2016/1106/EM
Erection of Single storey side extension
17 Brockswood Lane, Welwyn Garden City, AL8 7BA
Received 8 Jun 2016
Appeal Decided - Allowed6/2016/0842/EM
Replacement of front door
65 Valley Road, Welwyn Garden City, AL8 7DR
Received 3 May 2016
Decided - GrantedS6/2014/0013/NM
Non material amendment following approval of planning permission S6/2012/2353/FP - Change position of front door from side to front of property
12 Somers Square Welham Green Hatfield AL9 7PS
Received 14 Jan 2014
Decided - Granted6/2021/3066/LB
Further internal and external refurbishments and alterations in addition to the previously approved works under Listed Building Consents 6/2018/3055/LB and 6/2019/2272/VAR
Bush Hall Hotel Chequers Hatfield AL9 5NT
Received 26 Oct 2021
Decided - GrantedS6/2004/1477/FP
ERECTION OF 1.9M BOUNDARY RAILINGS AND GATES
107 Tolmers Road Cuffley Potters Bar EN6 4JL
Received 5 Oct 2004
Decided - Granted6/2019/0466/HOUSE
Retention of outdoor barbecue area
44 Heron Way Hatfield AL10 8QX
Received 28 Feb 2019
Decided - GrantedW6/2014/2218/EM
Insertion of door in flank elevation
101 Parkway, Welwyn Garden City, AL8 6JD
Received 7 Oct 2014
Decided - GrantedS6/2015/0213/FP
Erection of a two storey side and single storey rear extension including relocation of rear dormer windows
40 Pine Grove, Brookmans Park, Hatfield, AL9 7BS
Received 5 Feb 2015
Decided - Granted6/2018/1481/TPO
Reduction to Hornbeam trees (T10, T11, T12 and GP1) by approx. 2 metres and thin by 30% covered by TPO 711 (2017) (G1) and T10,T11 and T12
11 Juniper Gardens Welwyn AL6 0XH
Received 4 Jun 2018
Decided - Granted6/2019/0238/HOUSE
Erection of single storey rear, two storey part side and rear extensions
19 The Holdings Hatfield AL9 5HH
Received 4 Feb 2019
Decided - Granted6/2018/3269/FULL
Retention of extractor fan and alteration to extractor Flue to rear of commercial property
9-11 Cole Green Lane Welwyn Garden City AL7 3PP
Received 27 Dec 2018
Decided - GrantedN6/2015/0090/FP
Erection of fence to the front and side boundaries with gate to front boundary
42 Hertford Road Digswell Welwyn AL6 0DB
Received 26 Jan 2015
Decided - Granted6/2026/1616/TPO
Mature Ash tag 895 -Monolith tree above habitat features of main stem Hawthorn tag 487 - fell to fence height Mature multi-stemmed Ash tag 35 - fell to fence height
HMWT Gobions Wood Nature Reserve Off Mymms Drive Potters Bar AL9 7AF
Received 17 Sept 2026
Decided - Refused6/2023/2062/LAWP
Certificate of lawfulness for the erection of two detached single storey outbuildings, comprising of a home office and garden room and a summer house
124 Harmer Green Lane Digswell Welwyn AL6 0ET
Received 10 Oct 2023
Decided - Granted6/2021/1552/HOUSE
Erection of a part two storey and single storey rear extension, raised patio areas to rear with replacement windows and front door.
18 Coneydale Welwyn Garden City AL8 7RZ
Received 14 May 2021
Decided - Granted6/2023/1724/PN8
Prior approval for the erection of rear single storey extension measuring 4m in depth, 3m in height and 3m to the eaves
80 Cherry Way Hatfield AL10 8LD
Received 16 Aug 2023
Decided - Granted6/2017/1561/EM
Erection of a single storey side extension, alterations to existing openings and new side patio following demolition of existing conservatory, as well as the erection of a single storey side extension and alterations to openings to facilitate conversion of existing detached double garage to habitable space
5 Handside Green Welwyn Garden City AL8 6SQ
Received 17 Jul 2017
Decided - Granted6/2017/1623/COND
Submission of details pursuant to condition 9 (Written Scheme of Investigation) 10 (Archaeological watching brief) on planning permission N6/2011/359/OP
Queen Elizabeth II Hospital Howlands Welwyn Garden City AL7 4HQ
Received 25 Jul 2017
Decided - GrantedC6/1988/0260/FP
Single storey rear extensionto form conservatory
35 Valley Road, Welwyn Garden City, AL8 7DH
Received 1 Jan 1988
Decided - Granted6/2024/1511/EM
Installation of solar panels on roof
256 Heronswood Road Welwyn Garden City AL7 3JQ
Received 8 Aug 2024
Appeal Decided - Allowed6/2016/2339/FULL
Change of use from Restaurant (A3) to residential (C3) and the erection of single storey and first floor rear extension and subdivision into four flats
23 Park Street Hatfield
Received 7 Nov 2016
Decided - Granted6/2023/2042/HOUSE
Retention of a rear extension
65 Heathcote Avenue Hatfield AL10 0RQ
Received 4 Oct 2023
Decided - GrantedN6/2015/1275/LUP
Certificate of lawfulness for proposed single storey side and rear extensions
Doubledoors 3 Pottersheath Road Welwyn AL6 9SY
Received 16 Jun 2015
Decided - Granted6/2023/1859/HOUSE
Erection of front porch
16 Lockley Crescent Hatfield AL10 0TN
Received 6 Sept 2023

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