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

40,248Searchable applications

321Recorded as pending

86%Approval rate · 33,744 approved or refused records

4,812Refused applications

28,932 approved · 4,812 refused · 2,213 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/2302/EIA
Request for a Screening Opinion for RVSC
Royal Veterinary College Hawkshead Lane North Mymms Hatfield AL9 7TA
Received 7 Sept 2018
Decided - Refused6/2024/0391/HOUSE
Erection of a two storey side extension following the demolition of existing extensions. Alterations to fenestrations and detached garage conversion
2 Twelve Acres Welwyn Garden City AL7 4TG
Received 29 Feb 2024
Decided - Granted6/2020/1249/FULL
Erection of two storey rear extension to care home to create two specialist dementia units comprising a total of 12 beds
St Andrews Care Home Great North Road Welwyn Garden City AL8 7SR
Received 4 Jun 2020
Decided - Granted6/2020/3258/FULL
Construction of timber boarded bin store
Woodside House Bridge Road Welwyn Garden City AL8 6UJ
Received 4 Dec 2020
Decided - GrantedS6/2004/0828/FP
ERECTION OF SIDE EXTENSION TO EXISTING DWELLING, LOFT CONVERSION WITH NEW DORMER WINDOW
21 King James Avenue Cuffley Potters Bar EN6 4LN
Received 3 Jun 2004
Decided - GrantedW6/2009/1711/EM
INSTALLATION OF DORMER WINDOW AT REAR
14 THE QUADRANGLE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6SG
Received 6 Aug 2009
Decided - GrantedS6/2014/2642/DS
Approval of details reserved by condition 3 (materials) of S6/2014/1895/FP
Ramada Hatfield St Albans Road West Hatfield AL10 9RH
Received 4 Dec 2014
Decided - Granted6/2015/2147/TPO
Reduce 5 Hornbeams trees by 25%, reduce 6 Hornbeam trees by 25% plus crown lift by 4m. Remove deadwood and defective branches from 4 Oak trees plus crown lift and thin Hornbeam tree by 20% covered by TPO 54.
16A Oaklands Rise Welwyn AL6 0RN
Received 7 Oct 2015
Decided - Granted6/2023/1425/HOUSE
Erection of a single storey side extension, front porch extension, two storey side and rear extension
3 Tolmers Gardens Cuffley Potters Bar EN6 4JE
Received 10 Jul 2023
Decided - Granted6/2023/0947/HOUSE
Proposed alterations to the roof including a pitched roof front dormer, rear dormer with juliet balcony, insertion of rooflights and formation of new roof over the existing rear extension
38 The Meadway Cuffley Potters Bar EN6 4ES
Received 3 May 2023
Decided - Granted6/2020/3414/EM
Erection of a single storey side extension, alterations to fenestration and installation of 4 x 70mm long bullet CCTV cameras to existing Soffit boards
102 Handside Lane Welwyn Garden City AL8 6SY
Received 21 Dec 2020
Decided - Granted6/2022/2414/HOUSE
Erection of single storey rear extension following the demolition of existing extension
22 Mymms Drive Brookmans Park AL9 7AF
Received 18 Oct 2022
Decided - Granted6/2018/1591/HOUSE
Erection of a part single, part two storey side and rear extension
397 St Albans Road West Hatfield AL10 9RU
Received 14 Jun 2018
Decided - GrantedN6/2015/0585/FP
Demolition of 2no garage blocks and erection of 2no 2 bedroom dwellings with associated parking
Garages adjacent to, The Firs, Welwyn Garden City, AL8 7EA
Received 18 Mar 2015
Decided - GrantedS6/2010/0122/NM
NON-MATERIAL AMENDMENTS TO PLANNING PERMISSION S6/2007/0925/MA COMPRISING BLOCK B - TO AMEND THE MIX, PLANS, LAYOUT AND ASSOCIATED ELEVATIONS FROM FIVE 3 BED HOUSES TO TWO 3 BEDROOM AND THREE 2 BEDROOM
HAZEL GROVE PRIMARY SCHOOL, HATFIELD, HERTFORDSHIRE, AL10 9DX
Received 28 Jan 2010
Decided - Granted6/2025/2490/HOUSE
Erection of a single storey rear extension and alterations to the fenestration at the rear elevation
17 Attimore Road Welwyn Garden City AL8 6LH
Received 28 Nov 2025
Call In/Major Objection6/2025/0563/RM
Approval of reserved matters (layout, scale, appearance and landscaping) for the first residential parcel comprising 169 residential dwellings (C3 Use Class) of the approved outline planning permission 6/2021/0516/VAR dated 10 June 2022 and associated landscaping, open space and infrastructure works, including details of landscaping and biodiversity features pursuant to Condition 6.
Panshanger Aerodrome Land to North East of Welwyn Garden City AL7 2BQ
Received 25 Mar 2025
Decided - GrantedN6/2013/0054/S73B
Variation of condition 2 (Drawings) of planning permission N6/2012/0055/FP - Erection of two storey rear and single storey side and rear extension
15 Cowper Road, WELWYN GARDEN CITY, AL7 3LT
Received 10 Jan 2013
Decided - Granted6/2021/0865/EMH
Alterations to windows and openings and adding a partion wall to divide garage.
12 Templewood Welwyn Garden City AL8 7HX
Received 17 Mar 2021
Decided - Granted6/2021/0716/HOUSE
Erection of single storey rear extension, two storey rear extensions and front porch; first floor rear balcony; basement and replacement rear patio; alterations to openings; installation of new windows; and rendering of all walls.
37 The Ridgeway Cuffley Potters Bar EN6 4BB
Received 4 Mar 2021
Decided - Refused6/2019/2971/HOUSE
Erection of a part single, part two storey rear extension, alterations to openings, installation of dropped kerb and formation of hardstanding
3 The Valley Green Welwyn Garden City AL8 7DQ
Received 26 Nov 2019
Decided - Granted6/2019/3242/EM
Erection of a single storey side extension
22 Cloverfield Welwyn Garden City AL7 1EG
Received 24 Dec 2019
Decided - GrantedS6/2006/0552/FP
INSTALLATION OF NEW SHOP FRONT, WITH PERFORATED LATH SECURITY SHUTTERS.
42 The Common Hatfield AL10 0LU
Received 27 Apr 2006
Decided - Granted6/2017/0866/HOUSE
Erection of pre-fabricated timber summerhouse
9 Fore Street Hatfield AL9 5AN
Received 26 Apr 2017

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

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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.
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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.
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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