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

34,906Searchable applications

313Recorded as pending

87%Approval rate · 29,072 approved or refused records

3,878Refused applications

25,194 approved · 3,878 refused · 1,818 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 22 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 Counts reflect the last collected status; some records may be out of date.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

Appeal Decided - Allowed6/2018/2833/FULL
Change of use of amenity land to residential driveway with new dropped kerb to highway.
111 Wheatley Road Welwyn Garden City AL7 3LD
Received 5 Nov 2018
Decided - Granted6/2020/2497/COND
Submission of details pursuant to conditions 1 (Construction Management Plan), 3 (Flood Risk Assessment) and 4 (Surface Water Drainage Scheme) on planning permission 6/2019/1851/VAR
The Holdings, Cole Green Lane, Welwyn Garden City, AL7 4AL
Received 29 Sept 2020
Decided - Granted6/2018/0960/LB
Repair, restoration, extension and conversion of the retained original 1920's silos, production hall, grain store and boiler house to provide 5,096 sq.m of flexible business floorspace (Use Class B1), 265 sq.m Combined Heat and Power (Sui Generis), 2,494 sq.m International Art Centre (Use Class D1), 1,226 sq.m Gymnasium (Use Class D2), 1,576 sq.m of restaurant/coffee shop/bar (Use Class A1/ A3/A4/A5) and Creche/Day Nursery of 644 sq.m.
Former Shredded Wheat Factory Welwyn Garden City AL8 6UN
Received 11 Apr 2018
Decided - Granted6/2018/1085/HOUSE
Erection of single storey side and rear extension; including conversion of garage to habitable space, erection of front canopy and alterations to existing dormer
58 Brookside Crescent Cuffley Potters Bar EN6 4QN
Received 26 Apr 2018
Decided - Granted6/2026/1101/EM
Installation of a single room split air conditioning unit for the property main living room
48 Marsden Green Welwyn Garden City AL8 6YB
Received 25 Jun 2026
Decided - Granted6/2016/1392/COND
Approval of details reserved by condition 2 (plans) on planning permission 6/2016/0427/HOUSE
9 Brockett Close, Welwyn Garden City, AL8 7BN
Received 8 Jul 2016
Decided - Granted6/2022/1041/PN8
Prior approval for 8m deep single storey rear extension to the width of the original dwelling
Coverack 50 The Ridgeway Cuffley Potters Bar Hertfordshire EN6 4BA
Received 4 May 2022
Decided - GrantedS6/2014/0991/LUE
Certificate of lawfulness for existing change of use from residential (C3) to House in Multiple Occupation (C4)
53 Parkhouse Court, Hatfield, AL10 9QZ
Received 29 Apr 2014
Decided - Withdrawn6/2023/1086/HOUSE
Erection of an outbuilding following demolition of existing outbuilding and removal of concrete blocks to vehicle crossover
Postern Gate Farm Newgate Street Village Hertford SG13 8QR
Received 23 May 2023
Decided - GrantedW6/2015/1037/EM
Erection of single storey rear extension
22 East Mead Welwyn Garden City AL7 4RR
Received 20 May 2015
Decided - Granted6/2017/2048/EM
Removal of 2x Leyland Cypress trees
35 Elmwood Welwyn Garden City AL8 6LD
Received 13 Sept 2017
Decided - GrantedN6/2014/1406/FP
Erection of part two storey, part single storey rear extension
15 Rosecroft Lane Welwyn AL6 0UB
Received 20 Jun 2014
Appeal Decided - Dismissed6/2018/0110/EM
Replacement of existing conservatory
74 Rosedale Welwyn Garden City AL7 1DR
Received 12 Jan 2018
Appeal Decided - Dismissed6/2019/1836/HOUSE
Erection of single storey rear, part side, part first floor extension following demolition of garage
15 Northaw Road West Northaw Potters Bar EN6 4NW
Received 25 Jul 2019
Decided - Granted6/2022/0736/EM
Replacement of hard and soft landscaping to front of property
35 Brockswood Lane Welwyn Garden City AL8 7BE
Received 28 Mar 2022
Decided - Granted6/2019/1073/HOUSE
Installation of conservatory roof
45 Moors Walk Welwyn Garden City AL7 2AX
Received 3 May 2019
Decided - Granted6/2020/1581/HOUSE
Erection of a single storey rear extension
7 Moorend Welwyn Garden City AL7 4QL
Received 2 Jul 2020
Decided - GrantedW6/2008/1186/EM
ERECTION OF SINGLE STOREY REAR EXTENSION
96 BUSHEY LEY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 3HQ
Received 11 Jul 2008
Decided - Withdrawn6/2019/0415/LAWP
Certificate of lawfulness for the continuation of development of three dwellings with associated garages
Land at Hook Wood Hook Lane Northaw EN6 4DA
Received 25 Feb 2019
Decided - Granted6/2016/2126/LAWP
Certificate of lawfulness for a hip to gable loft conversion with rear dormer roof
8 Woodside Road Digswell Welwyn AL6 0DR
Received 12 Oct 2016
Decided - Granted6/2025/1739/EM
Installation of external air conditioning units to the North and West side of the detached property
6 Longcroft Lane Welwyn Garden City AL8 6EA
Received 15 Aug 2025
Decided - Granted6/2023/0387/EM
Installation of 1x air source heat pump - external unit
10 Mannicotts Welwyn Garden City AL8 7BW
Received 20 Feb 2023
Decided - Granted6/2023/0590/COND
Submission of details pursuant to the discharge of condition 3 (report on expenditure of profits from sale) on planning permission 6/2021/0214/FULL
Little Guessens 6 Codicote Road Welwyn AL6 9NB
Received 15 Mar 2023
Appeal Decided - Dismissed6/2019/2621/FULL
Erection of outbuilding
The Peartree Hollybush Lane Welwyn Garden City AL7 4JJ
Received 18 Oct 2019

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