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28,970 approved · 4,816 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/0798/COND
Submission of details pursuant to conditions 20 (Noise), 21 (Acoustic) on planning permission 6/2016/1739/MAJ
Ramada Hatfield St Albans Road West Hatfield AL10 9RH
Received 2 Apr 2019
Decided - Granted6/2016/0557/EM
Replacement of 7no windows with coloured UPVC
6 Ashley Close, Welwyn Garden City, AL8 7LH
Received 29 Mar 2016
Decided - Granted6/2017/1864/HOUSE
Erection of a two storey side and rear extension and single storey rear extension following demolition of existing detached garage and existing rear extension; front dormer, single storey front infill extension and formation of integral granny annexe.
144B Dixons Hill Road Welham Green Hatfield AL9 7DN
Received 22 Aug 2017
Decided - Granted6/2016/0183/TPO
Crown reduce ash tree by 30%
11 Farm Close, Welwyn Garden City, AL8 6RP
Received 29 Jan 2016
Decided - Granted6/2016/0122/EM
Bricking up of one first floor window on north elevation
163 Boundary Lane, Welwyn Garden City, AL7 4EQ
Received 22 Jan 2016
Decided - Granted6/2020/2113/EM
Removal of old wooden structure garage and replace with timber structure garage
41 Bridge Road Welwyn Garden City AL8 6UG
Received 21 Aug 2020
Decided - Granted6/2020/2243/EMH
Erection of a single storey rear extension including insertion of roof lantern in proposed roof.
40 Parkway Welwyn Garden City AL8 6HQ
Received 26 Aug 2020
Decided - Granted6/2024/2278/HOUSE
Garage conversion and rear extension with bi-fold doors
83 Pentley Park Welwyn Garden City AL8 7SL
Received 27 Nov 2024
Decided - GrantedN6/2004/1685/FP
ERECTION OF TWO STOREY REAR AND SINGLE STOREY SIDE EXTENSION AND MINOR ALTERATIONS TO FRONT ELEVATION
25 Gresley Close Welwyn Garden City AL8 7QA
Received 15 Nov 2004
Decided6/2022/1226/TC
1 x Silver Birch to remove 3 low limbs 1 x Goat Willow to remove 5 limbs
108 Lemsford Lane Welwyn Garden City AL8 6YP
Received 25 May 2022
Decided - GrantedW6/2014/1288/EM
Erection of garden shed
1 Hall Grove, Welwyn Garden City, AL7 4PJ
Received 9 Jun 2014
Decided - GrantedN6/2015/0513/FP
Erection of two storey & part single storey rear extension
42 Barnfield Road, Welwyn Garden City, AL7 3TQ
Received 10 Mar 2015
Decided - Granted6/2021/1090/EMT
Removal of leylandii hedge and replacement with hedge of mixed native species: hawthorn, blackthorn and spindle.
19 High Oaks Road Welwyn Garden City AL8 7BJ
Received 1 Apr 2021
Decided - Granted6/2018/1618/HOUSE
Erection of single storey front extension and conversion of garage to habitable space
12 Hurstlings Welwyn Garden City AL7 3LX
Received 19 Jun 2018
Decided - GrantedS6/2013/0485/FP
Erection of single storey side extension and conversion of existing garage to habitable accommodation
118 Vincenzo Close, Welham Green, HATFIELD, AL9 7NJ
Received 1 Mar 2013
Decided - Granted6/2020/2912/HOUSE
Demolition of existing conservatory to facilitate erection of a single storey side extension and alterations to fenestration, including insertion of 2 x roof lights to existing garage roof
1 Barleycroft Green Welwyn Garden City AL8 6JY
Received 9 Nov 2020
Decided - Granted6/2015/1979/LAWE
Certificate of lawfulness for the existing conversion of loft and installation of velux window
Essendon Lodge, School Lane, Essendon, Hatfield, AL9 6HD
Received 22 Sept 2015
Decided - Refused6/2018/2400/EM
Fell 6x Lime trees (G1)
11 Stanborough Close Welwyn Garden City AL8 6XB
Received 18 Sept 2018
Decided - Withdrawn6/2023/2026/LB
Proposed internal alterations
The Crooked Chimney Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE
Received 2 Oct 2023
Decided - GrantedS6/2004/1475/FP
ERECTION OF SINGLE STOREY REAR EXTENSION
53 Mymms Drive Brookmans Park Hatfield AL9 7AE
Received 6 Oct 2004
Decided - RefusedC6/1988/0481/FP
Erection of portacabin for office use
Service Station, Unit 4, Lemsford Lane, Welwyn Garden City
Received 1 Jan 1988
Decided - GrantedS6/2008/1036/AD
INSTALLATION OF INTERNALLY ILLUMINATED FASCIA AND PROJECTING SIGNS
1 Roe Green Centre Bishops Rise Hatfield AL10 9HE
Received 2 Jul 2008
Decided - Granted6/2022/0779/LB
Installation of soffits and fascias, guttering, works to roof and to convert corner windows to have lead roof
55 Harmer Green Lane Digswell Welwyn AL6 0AP
Received 30 Mar 2022
Appeal Decided - DismissedN6/2013/1351/FP
Erection of two dwellings and associated garaging and landscaping following demolition of existing dwelling
62 New Road Digswell Welwyn AL6 0AN
Received 25 Jun 2013

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