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

40,115Searchable applications

300Recorded as pending

86%Approval rate · 33,648 approved or refused records

4,801Refused applications

28,847 approved · 4,801 refused · 2,205 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 30 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2015/1705/COND
Confirmation that conditions 1 (materials), 4 (Childrens play equipment), 5 (sire Details) , 6 (Drainage) & 7 (Boundary treatments) have been complied with on Planning Permission N6/2004/1483/DE
Land at Chequersfield Welwyn Garden City AL7 4TX
Received 6 Aug 2015
Decided - Granted6/2019/1994/EM
Erection of first floor rear extension and alterations to existing side and rear fenestration
20 Attimore Close Welwyn Garden City AL8 6LN
Received 12 Aug 2019
Decided - Refused6/2021/0877/HOUSE
Erection of single storey rear ground floor extension with associated internal works.
1 Albert Place Welwyn Garden City AL7 4EP
Received 18 Mar 2021
DecidedN6/2014/0230/NM
Non material amendment following approval of planning permission N6/2013/0491/MA - Amendment to window sizes and patterns and removal of render panels on plots 1, 3 and 8 plus removal of render frames to gable ends on plots 10, 11 and 18
Former Hyde Club Hollybush Lane
Received 11 Feb 2014
Decided - Granted6/2025/0690/HOUSE
Construction of a single storey side extension to form ancillary living accommodation following demolition of existing garage.
17 Broadfield Road Woolmer Green SG3 6LZ
Received 9 Apr 2025
Decided - Granted6/2019/0564/RM
Application for the approval of reserved matters (appearance, landscaping, layout, scale) including, details of: construction management, refuse/waste strategy, fire safety strategy, on-street lighting strategy, car and cycle layout, incorporating electric charging vehicle points and visibility splays; for the erection of 21 dwellings as approved at outline planning permission 6/2017/2202/OUTLINE dated 04/01/2018
Land at Waterbeach Bericot Way and Shackleton Way Welwyn Garden City AL7 2PT
Received 8 Mar 2019
Decided - Granted6/2025/1942/HOUSE
Erection of single-storey side and rear extension to provide accessible ground floor living space, following demolition of existing garage
137 Boundary Lane Welwyn Garden City AL7 4EQ
Received 10 Sept 2025
Decided - Granted6/2017/1916/TPO
Reduce two lower branches and canopy of 1 x yew tree by up to 20%
7 Barleycroft Green Welwyn Garden City AL8 6JY
Received 22 Aug 2017
Decided - Granted6/2018/1137/EM
Erection of single storey rear extension, basement and side garage following demolition of existing twin rear single storey extensions and side garage
38 Parkway Welwyn Garden City AL8 6HQ
Received 1 May 2018
Decided - Split6/2018/0826/COND
Submission of details pursuant to condition 4) ii) (site investigation report) and v) (long term monitoring and maintenance) on planning permission N6/2011/359/OP, dated 04/06/2013
Queen Elizabeth II Hospital Howlands Welwyn Garden City AL7 4HQ
Received 28 Mar 2018
Decided - GrantedW6/2013/2236/TE
Fell Willow tree to ground level
8 Aldock, Welwyn Garden City, AL7 4QF
Received 7 Oct 2013
Decided - Refused6/2019/3115/FULL
Use of land as an extension to adjacent caravan park (The Firs Park) for the provision of additional parking and an outdoor recreation area in connection with the caravan park
Land adjacent to The Firs Park, Woodside Lane, Hatfield, AL9 6DG
Received 9 Dec 2019
Decided - Granted6/2021/1538/EMT
1 x Leyland Cypress to reduce height by 4-5m. Group of Leyland Cypress to reduce height by 6-7m
Chandler House 3 Willow Grove Welwyn Garden City AL8 7NA
Received 13 May 2021
Decided - WithdrawnS6/2015/0637/NM
Non material amendment following the approval of planning permission S6/2014/0653/FP - Change to internal layout
Beaconsfield Court Beaconsfield Road Hatfield AL10 8BE
Received 23 Mar 2015
Decided - GrantedS6/2014/2157/NM
Non material amendment following approval of planning permission S6/2014/1559/FP - To amend drawing no: 951100 to include raised parapit wall and roof lantern on single storey rear elevation
27 Tolmers Road, Cuffley, Potters Bar, EN6 4JF
Received 30 Sept 2014
Decided - GrantedN6/2014/2661/FP
Erection of single storey front extension
14 Mountway Close, Welwyn Garden City, AL7 4JZ
Received 9 Dec 2014
Decided - Granted6/2020/0253/HOUSE
Erection of rear conservatory
10 Butterwick Way Welwyn AL6 9GH
Received 29 Jan 2020
Decided - GrantedS6/2013/1225/FP
Change of Use from offices (Use Class B1) to residential (Use Class C3)
Northaw House, Coopers Lane, Northaw, Potters Bar, EN6 4PS
Received 6 Jun 2013
Decided - Granted6/2015/1692/EM
Reduce circumference of Oak tree by up to 2.5m
351 Knightsfield, Welwyn Garden City, AL8 7NB
Received 10 Aug 2015
Decided - Granted6/2022/1264/HOUSE
Erection of a rear garden enclosure/pergola for hydro-pool.
26 Endymion Road Hatfield AL10 8AS
Received 27 May 2022
Decided - Granted6/2022/1927/TPO
1 x Oak - To reduce by approximately 1.8m in height and width, remove epicormic growth up to 5m above ground level
6 Wendover Drive Welwyn Hertfordshire AL6 9LT
Received 17 Aug 2022
Decided - GrantedS6/2007/1950/LU
CERTIFICATE OF LAWFULNESS FOR PROPOSED RESURFACING AND RECONFIGURATION OF EXISTING CAR PARKING LAYOUT AND LANDSCAPING (EXISTING CAR SPACES 235, PROPOSED CAR SPACES 235)
OSHWAL CENTRE, COOPERS LANE ROAD, NORTHAW, POTTERS BAR, HERTFORDSHIRE, EN6 4DG
Received 19 Dec 2007
Decided - Granted6/2024/0334/EM
Erection of a single storey rear extension following demolition of existing outbuilding with addition of garden room and driveway.
48 Crookhams, Welwyn Garden City, AL7 1PF
Received 20 Feb 2024
Decided - Granted6/2025/2203/TPO
TPO 817 T1 Sycamore to reduce lateral branches over the carpark between ground level and 10m in height by up to 2m from branch tips. T2 Horse Chestnut to reduce lateral branches over the carpark between ground level and 10m in height by up to 2m from branch tips. T3 Lime to reduce lateral branches by approx. 2m to previous reduction points
Sadlers Lodge 40 New Road Digswell Welwyn AL6 0AH
Received 16 Oct 2025

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