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

40,297Searchable applications

303Recorded as pending

86%Approval rate · 33,806 approved or refused records

4,819Refused applications

28,987 approved · 4,819 refused · 2,218 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 8 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2014/1382/FP
Erection of ground floor rear and side infill extension
77 Longcroft Lane, Welwyn Garden City, AL8 6EL
Received 18 Jun 2014
Decided - Granted6/2021/0523/EMT
Thin Copper Beech Tree - back to previous points
55 Longcroft Lane Welwyn Garden City AL8 6EB
Received 17 Feb 2021
Decided - Granted6/2019/3193/EM
Formation of hardstanding to provide 1x additional parking space
177 Parkway Welwyn Garden City AL8 6JA
Received 17 Dec 2019
Decided - Refused6/2016/1846/EM
Extension of driveway
13 Springfields, Welwyn Garden City, AL8 6XS
Received 10 Aug 2016
Decided - Granted6/2016/1418/EM
Installation of side ground floor window and skylight to existing rear extension
46 Attimore Road, Welwyn Garden City, AL8 6LP
Received 11 Jul 2016
Decided - Granted6/2017/1809/TPO
T2 Sycamore-Premove hanging limb at 16m above road; clean crown of all dead limbs over 50mm diameter. T3 Austrian Pine- Remove hanging limb at 6-7m above road; clean tree of all dead limbs over 50mm in diameter -conservation area T4 Sycamore- Remove hanging limb at 5-6m above road
Horse Paddocks Ayot St Lawrence Field
Received 11 Aug 2017
Decided - GrantedS6/2015/0801/LUP
Certificate of lawfulness for a proposed detached garage and pool complex
Woodhill Farm, Kentish Lane, Hatfield, AL9 6JY
Received 9 Apr 2015
Decided - GrantedN6/2007/1374/TP
CUT BACK OF OVERHANGING BRANCHES ON OAK TREE T1 COVERED BY TPO89
18 Bluebells Welwyn AL6 0XD
Received 17 Sept 2007
Decided - Granted6/2023/1777/EM
Installation of fence behind hedge in front garden
2 Parkfields Welwyn Garden City AL8 6ED
Received 23 Aug 2023
Decided - RefusedN6/2008/1938/FP
RETENTION OF HARDSTANDING TO FRONT GARDEN
2 COPPERFIELDS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2HH
Received 9 Oct 2008
Decided - Granted6/2017/0515/COND
Submission of details pursuant to condition 10 (external lighting) attached to planning permission reference 6/2016/1647/MAJ, dated 15/02/2017
Encore House 51 Great North Road Hatfield AL9 5EN
Received 15 Mar 2017
Decided - Granted6/2015/2108/EM
Pollard Robinia tree
34 Valley Road, Welwyn Garden City, AL8 7DN
Received 12 Oct 2015
Decided - Granted6/2020/1315/EM
Erection of timber summer house
32 Parkway Welwyn Garden City AL8 6HQ
Received 10 Jun 2020
Decided - Refused6/2018/0801/HOUSE
Erection of a first floor extension and loft extension to include alterations to the roof and a hip to gable conversion and raising the ridge height.
69 Northaw Road East Cuffley Potters Bar EN6 4LY
Received 26 Mar 2018
Decided - Granted6/2021/1735/HOUSE
Erection of a single storey side extension and alterations to openings, including insertion of bi-folding doors to existing rear elevation
42 Caponfield Welwyn Garden City AL7 4AP
Received 2 Jun 2021
Decided - GrantedN6/2004/1591/FP
ERECTION OF A REAR CONSERVATORY
1 Moatwood Green Welwyn Garden City AL7 3SN
Received 25 Oct 2004
Decided - Granted6/2023/0158/FULL
Erection of new detached house following demolition of existing house
6 Peace Grove Welwyn Hertfordshire AL6 0RS
Received 23 Jan 2023
Decided - Granted6/2023/2097/LAWE
Certificate of lawfulness for the existing use of loft as habitable space
34 Mimram Road Welwyn AL6 9HA
Received 16 Oct 2023
Decided - GrantedW6/2014/1864/EM
Erection of single storey side extensions and alterations to conservatory
10 Cypress Avenue, Welwyn Garden City, AL7 1HN
Received 19 Aug 2014
Decided - GrantedN6/2008/0516/FP
ERECTION OF DETACHED GARAGE IN REAR GARDEN
42 Mill Lane Welwyn AL6 9ET
Received 18 Mar 2008
Decided - GrantedS6/2007/1881/FP
ERECTION OF NEW DWELLING WITH AMENDMENTS TO ROOF DETAILS FROM PREVIOUS PLANNING PERMISSION S6/2006/134/FP
LAND ADJACENT, 162 DIXONS HILL ROAD, WELHAM GREEN, HERTFORDSHIRE, AL9 7DL
Received 7 Dec 2007
Decided - Granted6/2023/1023/EM
Erection of summer house shed
149 Peartree Lane Welwyn Garden City AL7 3AJ
Received 15 May 2023
Decided - GrantedW6/2015/0811/EM
Change of use of amenity land to residential and erection of two storey side extension
73 Knightsfield, Welwyn Garden City, AL8 7JE
Received 15 Apr 2015
Decided - Granted6/2025/0920/HOUSE
Erection of front porch extension
1 Little Wade Welwyn Garden City AL7 4LE
Received 19 May 2025

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