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

39,835Searchable applications

298Recorded as pending

86%Approval rate · 33,397 approved or refused records

4,776Refused applications

28,621 approved · 4,776 refused · 2,184 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 28 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 Counts reflect the last collected status; some records may be out of date.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 - RefusedW6/2009/1336/EM
ERECTION OF TWO STOREY REAR EXTENSION
6 THE ORCHARD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PL
Received 23 Jun 2009
Decided - GrantedN6/2004/1136/FP
NEW ROOF FORMATION TO ACCOMMODATE ADDITIONAL STOREY AT THIRD FLOORLEVEL TO PROVIDE SIX SELF CONTAINED FLATS (1-2 BED) AND CHANGE OF USE FROM CLASS B1 (OFFICE ACCOMMODATION) OF FIRST AND SECOND FLOORS TO PROVIDE SIXTEEN SELF CONTAINED FLATS (1-2 BED), INCLUDING NEW REPLACEMENT WINDOWS, REAR LIFT TOWER AND GROUND FLOOR ENTRANCE LOBBY
1-7 HOWARDSGATE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6AL
Received 22 Jul 2004
Decided - Granted6/2024/2411/PN8
Prior approval for the erection of a single storey rear extension measuring 3.25m in height, 6m in depth and 3m to the eaves
8 The Meadway Cuffley Potters Bar EN6 4ES
Received 20 Dec 2024
Decided - GrantedN6/2006/0287/FP
TWO STOREY AND SINGLE STOREY SIDE AND REAR EXTENSIONS, FORMATION OF HARDSTANDING AND NEW ACCESS: RENEWAL OF PLANNING PERMISSION N6/2001/0689/FP
HOLLYBUSH SURGERY, 141 HOLLYBUSH LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4JS
Received 8 Mar 2006
Decided - Granted6/2017/0308/FULL
Conversion works to Flat 5 to amalgamate 2 x unauthorised 2 bedroom flats to provide 1 x 3 bedroom flat
71 Great North Road HATFIELD AL9 5EN
Received 17 Feb 2017
Decided - GrantedW6/2009/2285/EM
ERECTION OF REAR CONSERVATORY
28 HANDSIDE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6SF
Received 13 Oct 2009
Decided6/2019/2063/TC
Pollard x 4 lime trees by 4-5m
8 Stanborough Close Welwyn Garden City AL8 6XB
Received 19 Aug 2019
Decided - Granted6/2023/1901/FULL
Retention of part double, part single storey rear extension, single storey side extension and part garage conversion and solar panels (all previously approved under planning application reference numbers 6/2020/1874/HOUSE & 6/2021/3141/HOUSE) with an amendment to the approved rooflight and party wall at the rear
11 The Quadrangle Welwyn Garden City AL8 6SG
Received 14 Sept 2023
Decided - GrantedS6/2004/1157/FP
ALTERATIONS TO INTERNAL LAYOUT TO INCLUDE SHOWROOM WINDOWS, ROLLER SHUTTER TO WORKSHOP, REPLACEMENT WINDOWS, NEW FENCING AND GATES TO BOUNDARY.
TRAVELLERS LANE, NORTH MYMMS, HATFIELD, HERTFORDSHIRE, AL9 7HW
Received 28 Jul 2004
Decided - Granted6/2015/2367/TPO
Crown reduce by 20% one Rowan, crown reduce one apple by 30% and reduce holly by up to 50%. fell 1 cherry, 1 apple and 2 conifers
3 Walden Place, Welwyn Garden City, AL8 7PG
Received 24 Nov 2015
Decided - GrantedN6/2014/1040/NM
Non material amendment following approval of planning permission N6/2013/0821/MA - The provision of 8 additional car parking spaces
Former Clock Hotel Church Street Welwyn AL6 9LN
Received 16 May 2014
Decided - GrantedW6/2009/2592/EM
ERECTION OF TWO STOREY REAR EXTENSION, FRONT AND REAR DORMER WINDOWS AND ALTERATIONS
9 BARLEYCROFT GREEN, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6JY
Received 25 Nov 2009
Decided - Refused6/2017/0793/HOUSE
Erection of single storey side conservatory following part demolition of single storey side and rear extension, installation of dormer window to front elevation
16 Northaw Road West, Northaw, Potters Bar, EN6 4NR
Received 19 Apr 2017
Decided - GrantedN6/2013/1767/S73B
Variation of condition 6 (retention of barrier of planning permission N6/2013/0721/FP (Change of use of ground and first floors from B1 (Business) to D1 (Day Nursery)
Trevelyan House, 7 Church Road, Welwyn Garden City, AL8 6NT
Received 15 Aug 2013
Decided - GrantedS6/2009/1311/FP
INSTALLATION OF VENTILATION FLUE TO REAR OF PREMISES TO COVER EXISTING EXTRACTION FAN
CUFFLEY CAFÉ, 3 MAYNARD PLACE, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4JA
Received 15 Jun 2009
Decided - GrantedC6/1988/1234/FP
Erection of a canopy to rear of property
9 Baldwins, Welwyn Garden City, AL7 2BD
Received 1 Jan 1988
Decided - Granted6/2018/1976/ADV
Installation of 1 x non-illuminated fascia sign
29 Brownfields Welwyn Garden City AL7 1AN
Received 26 Jul 2018
Decided - Withdrawn6/2018/0003/LAWP
Certificate of lawfulness for the erection of single story rear extension.
17 Newgate Street Village Hertford SG13 8RA
Received 2 Jan 2018
Decided - RefusedN6/2008/1332/DT
REPLACEMENT OF EXISTING TELEPHONE KIOSK WITH COMBINED PAYPHONE AND BYBOX STORAGE FACILITY
LAND AT, SIR THEODORE'S WAY/STONEHILLS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6PU
Received 29 Jul 2008
Decided - Granted6/2018/1625/EM
Erection of single storey rear extension.
101 The Commons Welwyn Garden City AL7 4RZ
Received 20 Jun 2018
Decided - GrantedN6/2007/0218/FP
INSTALLATION OF AIR CONDITIONING UNITS
Unit 17A The Howard Centre Howardsgate Welwyn Garden City AL8 6HA
Received 12 Feb 2007
Decided - Granted6/2022/1594/FULL
Proposed replacement roof incorporating new solar panels on the southern elevation and a replacement ‘conservation’ rooflight on the north elevation.
31A Church Street Welwyn AL6 9LW
Received 6 Jul 2022
Decided - Granted6/2026/1102/COND
Submission of details pursuant to Condition 9 (materials) on planning permission 6/2024/2418/MAJ
Land south of Welham Manor and west of Station Road including 26 Station Road Welham Green AL9 7EL
Received 25 Jun 2026
Decided - GrantedS6/2004/1091/AD
INSTALLATION OF INTERNALLY ILLUMINATED SIGNS, AND MOUNTING OF FLAG ON POLE
FORMER COMET HANGAR, MOSQUITO WAY, HATFIELD, HERTFORDSHIRE
Received 13 Jul 2004

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