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

40,250Searchable applications

321Recorded as pending

86%Approval rate · 33,746 approved or refused records

4,812Refused applications

28,934 approved · 4,812 refused · 2,213 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedC6/1987/0633/FP
Front extension to form garage
243 Daniells, Welwyn Garden City, AL7 1QD
Received 1 Jan 1987
Decided - Refused6/2020/1953/HOUSE
Erection of a single storey side extension and first floor side extension over existing garage
133 The Ridgeway, Cuffley, Potters Bar, EN6 4BG
Received 6 Aug 2020
Decided - Granted6/2016/1911/HOUSE
Erection of porch on both existing and new property. Installation of dormer to existing dwelling to mirror dormer on new dwelling.
2a & 2 Farm Close Cuffley Potters Bar EN6 4RQ
Received 15 Sept 2016
Decided - Granted6/2015/1823/HOUSE
Replacement of car port
14 Danesbury Park Road Welwyn AL6 9SJ
Received 27 Aug 2015
Decided - Granted6/2016/2069/FULL
Change of use from vacated Station Master's house to A5 (Hot Food Takeaway) Indian cuisine takeaway
Station Master's House 15 Harmer Green Lane Digswell Welwyn AL6 0AS
Received 6 Oct 2016
Decided - GrantedC6/1988/7037/AD
Non illuminated fascia sign
50 Howardsgate, Welwyn Garden City, AL8 6BJ
Received 1 Jan 1988
Decided - Granted6/2025/1887/FULL
Erection of a two storey rear and side extension
51 Roe Green Close Hatfield AL10 9PF
Received 3 Sept 2025
Decided - Granted6/2024/1329/LAWP
Certificate of lawfulness for a proposed rear dormer
71 Hill Rise Cuffley EN6 4RJ
Received 11 Jul 2024
Decided - Granted6/2018/2463/EM
Pollard 2x Hybrid Poplars
11 Elmwood Welwyn Garden City AL8 6LD
Received 25 Sept 2018
Decided - Granted6/2021/0135/FULL
Erection of a single storey side extension to nursery building
De Havilland Primary School Travellers Lane Hatfield AL10 8TQ
Received 18 Jan 2021
Decided - Granted6/2021/1965/HOUSE
Replacement of porch
88 Harmer Green Lane Welwyn Hertfordshire AL6 0EP
Received 28 Jun 2021
Decided - Refused6/2020/1463/FULL
Erection of a one storey roof extension to create no 6 flats including 3 x 1 bed and 3 x 2 bed flats, associated parking and cycle and refuse provision.
1 Maynard Place Cuffley Potters Bar EN6 4JA
Received 22 Jun 2020
Decided - GrantedS6/2008/1127/MA
ERECTION OF THREE STOREY CAR PARK
UNIVERSITY OF HERTFORDSHIRE, COLLEGE LANE, HATFIELD, HERTFORDSHIRE, AL10 9PN
Received 2 Jul 2008
Decided - Refused6/2021/2248/HOUSE
Erection of a single storey front extension
10 Windsor Close Welwyn AL6 9JZ
Received 27 Jul 2021
Decided - Granted6/2017/0464/EM
Erection of single storey rear extension
6 Bushey Close Welwyn Garden City AL7 3HD
Received 9 Mar 2017
Decided - Granted6/2023/1870/HOUSE
Erection of a part single-storey and part two-storey rear extension and two-storey side extension.
14 Astwick Avenue Hatfield AL10 9LA
Received 7 Sept 2023
Decided - Withdrawn6/2019/3003/LAWP
Certificate of lawfulness for the installation 1 x rear dormer with Juliet balcony and 3 x roof-lights
2 Waterworks Cottages Northaw Road East Cuffley Potters Bar EN6 4RB
Received 28 Nov 2019
Decided - Granted6/2023/2519/HOUSE
Erection of a rear extension following the demolition of existing rear extension
11 Ground Lane Hatfield AL10 0HQ
Received 19 Dec 2023
Decided - Granted6/2025/0835/HOUSE
Erection of single storey front extension, garage conversion, including raising of roof and alterations to openings to rear
36 Sylvandale Welwyn Garden City AL7 2HT
Received 1 May 2025
Decided - Refused6/2022/2569/EM
Construction of pitched roof to create roof terrace
22 Parkway Welwyn Garden City AL8 6HG
Received 10 Nov 2022
Decided - GrantedN6/2008/2389/FP
ERECTION OF SINGLE STOREY SIDE AND REAR EXTENSIONS
10 Windsor Close Welwyn AL6 9JZ
Received 24 Nov 2008
Appeal Decided - Allowed6/2019/3244/ADV
Installation of 2x Illuminated signage (2 no. locations)
Comet Hotel St Albans Road West Hatfield AL10 9RH
Received 24 Dec 2019
Decided - Withdrawn6/2018/2183/EM
Erection of an outdoor garden room
578 Howlands Welwyn Garden City AL7 4ET
Received 22 Aug 2018
Decided - Granted6/2022/2729/EM
To Install sky dish (sky dish size is 45cm diameter)
62 Parkway Welwyn Garden City AL8 6HH
Received 1 Dec 2022

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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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