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

40,000Searchable applications

298Recorded as pending

86%Approval rate · 33,543 approved or refused records

4,791Refused applications

28,752 approved · 4,791 refused · 2,198 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 29 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 Counts reflect the last collected status; some records may be out of date.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 - RefusedW6/2008/1752/EM
FORMATION OF FRONT/SIDE HARDSTANDING AND INSTALLATION OF METAL ENTRANCE GATES. ERECTION OF REAR TIMBER SHED
37 BROOMHILLS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1RG
Received 31 Oct 2008
Decided - GrantedN6/2008/2184/FP
ERECTION OF TWO STOREY SIDE EXTENSION
6 RAYFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7HR
Received 14 Nov 2008
Decided - GrantedN6/2014/0224/FP
Erection of single storey rear extension following removal of existing
12 The Wade, Welwyn Garden City, AL7 4LG
Received 27 Jan 2014
Decided6/2025/1516/TC
Tree A - Silver birch to fell.
23 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 14 Jul 2025
Decided - Granted6/2024/1891/EM
Single storey side extension, new frontal porch
120 Boundary Lane Welwyn Garden City AL7 4DL
Received 1 Oct 2024
Decided - RefusedS6/2013/1570/EI
Screening Opinion for proposed solar park
Land at, North Mymms Park Estate, North Mymms, Hatfield, AL9 7TG
Received 26 Jul 2013
Decided - Refused6/2024/1368/FULL
Erection of a new dwelling and formation of a new access road
Parcel D Digswell Park Road Hertford Road Digswell AL6 0DB
Received 17 Jul 2024
Decided - GrantedN6/2006/0509/FP
ERECTION OF REAR CONSERVATORY
6 Linces Way Welwyn Garden City AL7 3JN
Received 20 Apr 2006
Decided - Granted6/2021/2666/EMH
Erection of a single storey rear extension
116 Mill Green Road Welwyn Garden City AL7 3XE
Received 14 Sept 2021
Decided - GrantedW6/2006/0683/EM
CONVERSION OF OUTBUILDING TO KITCHEN AND ERECTION OF GARDEN OUTBUILDING
58 Great Ley, Welwyn Garden City, AL7 4TL
Received 30 May 2006
Decided - Granted6/2021/2471/EMT
1x Oak (left) to reduce canopy by 1.2m height and width and remove all major deadwood. 1x Oak (right) to reduce canopy by 1.5m height and 2m width and remove major deadwood.
19 Coneydale Welwyn Garden City AL8 7RX
Received 23 Aug 2021
Decided - GrantedC6/1988/1142/FP
Change of use from retail Class A1 to restaurant Class A3
78 Haldens, Welwyn Garden City, AL7 1DD
Received 1 Jan 1988
Decided - Granted6/2021/1947/HOUSE
Erection of a two storey side extension and alterations to front elevation
3 The Ridgeway Cuffley Potters Bar EN6 4AY
Received 28 Jun 2021
Decided - Granted6/2017/0692/FULL
Installation of glazed folding doors following the removal of existing door and part of wall to rear patio area
Brookmans Park Hotel Bradmore Green Brookmans Park Hatfield AL9 7QW
Received 5 Apr 2017
Decided - Granted6/2018/2497/FULL
Change of use of the existing grade 2 listed building from office (B1) to 4 x residential flats (C3) with associated internal and external alterations
1-5 Park Street Hatfield AL9 5AT
Received 1 Oct 2018
Decided - Granted6/2019/1141/HOUSE
Erection of single storey front extension
15 Great North Road Brookmans Park Hatfield AL9 6LB
Received 10 May 2019
Decided - Granted6/2018/1204/COND
Submission of details pursuant to conditions 1 (3 years), 2 (approved drawings), 3 (materials samples), 4 (details of roofs, windows, doors, rooflights and internal surface materials) and 5 (historic timbers) on listed building consent 6/2017/0835/LB
The Barn House 14A Cromer Hyde Lane Lemsford AL8 7XE
Received 9 Apr 2018
Decided - Granted6/2020/1214/LAWP
Certificate of lawfulness for the erection of outbuilding
44 Vineyards Road Northaw Potters Bar EN6 4PA
Received 1 Jun 2020
Decided - Granted6/2021/3553/HOUSE
Installation of a new sliding gate
2 Barlow Close Hatfield AL10 9GZ
Received 30 Dec 2021
Decided - RefusedS6/2014/1694/FP
Erection of detached garage/store building
Rockwater, Bulls Lane, Hatfield, AL9 7BB
Received 25 Jul 2014
DecidedN6/2009/1452/TC
PRUNE TO REMOVE DEADWOOD/DAMAGED BRANCHES TO FALSE ACACIA (ROBINIA PSEUDOACACIA)
8 LITTLE YOUNGS, WELWYN GARDEN CITY, HERTS, AL8 6SL
Received 3 Jul 2009
Decided - Granted6/2016/0056/HOUSE
Erection of single storey , two storey side extension and first floor rear extension
2 Gooseacre, Welwyn Garden City, AL7 4NB
Received 15 Jan 2016
Decided - Granted6/2026/1325/COND
Submission of details pursuant to condition number 1 (materials) on planning permission 6/2026/0317/FULL
44 Howardsgate Welwyn Garden City AL8 6BW
Received 29 Jul 2026
Decided - Granted6/2022/1489/EMT
T1-Apple- Fell to 1.5 metres as it is damaging the fence. T2-Laurel-Reduce by 4 metres in height to maintain size.
6 Warren Dale Welwyn Garden City AL8 7HN
Received 27 Jun 2022

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

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