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

40,118Searchable applications

300Recorded as pending

86%Approval rate · 33,650 approved or refused records

4,801Refused applications

28,849 approved · 4,801 refused · 2,206 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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

DecidedW6/2011/0106/EM
Two storey extension
21 Lady Grove Welwyn Garden City AL7 4DS
Received 21 Jan 2011
Decided - Granted6/2024/0086/EMT
G1 - laurel and western red cedar. Fell as roots are causing damage to the tennis court.
Dellcott Tennis Club Dognell Green Welwyn Garden City AL8 7BL
Received 12 Jan 2024
Decided - Granted6/2019/3237/VAR
Variation of condition pursuant to condition 2 (materials) on planning permission 6/2015/1983/FULL
2 New Road Welwyn Garden City AL8 7TX
Received 24 Dec 2019
Decided - GrantedN6/2014/1686/AD
Installation of one fascia and one hanging sign
56 Howardsgate, Welwyn Garden City, AL8 6PB
Received 24 Jul 2014
Decided - GrantedS6/2013/0456/FP
Erection of single storey rear extension and detached replacement garage
Sherwoods, West End Lane, Essendon, HATFIELD, AL9 6AU
Received 26 Feb 2013
Decided - GrantedW6/2009/2644/EM
INSTALLATION OF WINDOW
38 BROOMHILLS, WELWYN GARDEN CITY, HERTS, AL7 1RF
Received 4 Dec 2009
Decided - Withdrawn6/2016/2674/VAR
Variation of condition 2 (Plans) on planning permission S6/1992/0502/FP
29 The Ridgeway Cuffley Potters Bar EN6 4BB
Received 19 Dec 2016
Decided - WithdrawnN6/2004/1688/FP
RETENTION OF TEN LOW LEVEL FLOODLIGHTS AND TWO MIRRORS
Land at Hill Farm Cottage Hill Farm Lane Ayot St Lawrence Welwyn Hertfordshire AL6 9BN
Received 15 Nov 2004
Decided - Granted6/2017/0468/COND
Submission of details pursuant to condition 3 (Landscaping) attached to planning permission S6/2015/0185/FP dated 06/07/15
Osborne House Farm Hawkshead Road Little Heath Potters Bar EN6 1LX
Received 10 Mar 2017
Decided - Granted6/2021/1393/EM
Replace front door and glass panels on each side.
44 Woodland Rise Welwyn Garden City AL8 7LF
Received 30 Apr 2021
Decided - Granted6/2017/2789/EM
Formation of path and erection of fence and gate to the side of property
61 Moorlands Welwyn Garden City AL7 4QJ
Received 29 Nov 2017
Decided - Granted6/2016/0098/HOUSE
Erection of two storey front, side and rear extension and to raise the main roof including installation of 2no rear dormers
1 Calder Avenue, Brookmans Park, Hatfield, AL9 7AH
Received 21 Jan 2016
Decided - GrantedW6/2014/0946/EM
Erection of first floor rear extension
59 Handside Lane, Welwyn Garden City, AL8 6SH
Received 29 Apr 2014
Decided - Granted6/2021/1569/EMH
Erection of first floor side extension, ground floor side extension, first floor rear extension to facilitate loft conversion, fenestration alterations and replacement of chimney
46 Blakemere Road Welwyn Garden City AL8 7PJ
Received 17 May 2021
Decided - Granted6/2022/2442/EM
Replacement of existing single storey rear extension on same footprint but with flat roof.
24 St Audreys Green Welwyn Garden City AL7 3RT
Received 21 Oct 2022
Decided - Granted6/2020/1536/EM
Eerection of a single storey rear extension
236 Heronswood Road Welwyn Garden City AL7 3JQ
Received 29 Jun 2020
Decided - Refused6/2018/0574/HOUSE
Conversion of garage into a habitable room and front extension
12 Hurstlings Welwyn Garden City AL7 3LX
Received 27 Feb 2018
Decided6/2024/0772/TC
T1, Ash, reduce crown in height and width by 2.5m T2, Ash, reduce lateral limbs over neighbouring garden by 3m
11A Guessens Court Welwyn Garden City AL8 6RB
Received 25 Apr 2024
Decided - RefusedW6/2007/0274/EM
INSERTION OF TWO REAR DORMER WINDOWS
60 Great Ganett, Welwyn Garden City, AL7 3DE
Received 19 Feb 2007
Decided - Granted6/2022/1308/FULL
Subdivision of the plot and the erection of a new building housing a pair of semi-detached dwellings with associated parking, bins and shared access following the part demolition of the existing dwellinghouse
41 Hawkshead Lane North Mymms AL9 7TD
Received 7 Jun 2022
Decided - WithdrawnN6/2013/2481/S73A
Variation of condition 1 (Approved plans) 10 (Landscaping Scheme) of planning permission N6/2012/0863/FP - Erection of dwelling and detached garage
The Carriage House 8 Codicote Road Welwyn AL6 9NB
Received 20 Nov 2013
Decided - WithdrawnN6/2008/0891/MA
ERECTION OF 24 DWELLINGS INCLUDING; EIGHT x 2 BED FLATS, NINE x 3 BED HOUSE, SIX x 2 BED HOUSE & ONE x 4 BED HOUSE WITH ASSOCIATED PARKING, LANDSCAPING, NEW VEHICULAR AND PEDESTRIAN ACCESS
LAND TO THE REAR OF 173A - 187, KNELLA ROAD (FORMER ALLOTMENT SITE), WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 3NT
Received 13 Jun 2008
Decided - GrantedW6/2008/0488/EM
ERECTION OF GARDEN SHED
10 THE QUADRANGLE, WELWYN GARDEN CITY, HERTS, AL8 6SG
Received 19 Mar 2008
Decided - WithdrawnN6/2014/1830/LB
Erection of a detached outdoor learning structure
Templewood Primary School, Pentley Park, Welwyn Garden City, AL8 7SD
Received 15 Aug 2014

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