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

283Recorded as pending

86%Approval rate · 33,821 approved or refused records

4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 9 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/2376/EM
Reduce 1 x Gingko tree by 3m height and 1.5m width
111 Woodhall Lane Welwyn Garden City AL7 3TP
Received 25 Sept 2019
Decided - Granted6/2022/0438/HOUSE
Erection of a single storey front and rear extension.
22 Mountway Close Welwyn Garden City AL7 4JZ
Received 24 Feb 2022
Decided - Granted6/2020/2358/HOUSE
Erection of a two storey front and first floor side and rear extensions, hip to gable roof extension, rear box dormer with loft conversion and front porch.
37 Bramble Road Hatfield AL10 9RZ
Received 15 Sept 2020
Decided - Granted6/2023/1534/LAWP
Certificate of lawfulness for loft conversion with rear dormer and installation of rooflights to the front rooflslope
1 Northaw Road East Cuffley Potters Bar EN6 4LU
Received 24 Jul 2023
Decided - Granted6/2022/0322/HOUSE
Erection of single and two storey front, side and rear extensions
Coverack 50 The Ridgeway Cuffley Potters Bar EN6 4BA
Received 10 Feb 2022
Decided - Granted6/2021/2621/COND
Submission of details pursuant to condition 1 (on-site reptile survey) & 2 (badger walk-over survey) on planning permission 6/2020/2155/FULL
Land adjacent to 45 Kentish Lane Brookmans Park Hatfield AL9 6NG
Received 9 Sept 2021
DecidedN6/2008/1698/TC
REMOVAL OF TREE AT REAR OF PROPERTY.
DESM Ltd, 4 London Road, Welwyn, AL6 9EL
Received 8 Sept 2008
Decided6/2021/0031/TC
2 x Cherry Plum to reduce height by 2m.
29 Attimore Road Welwyn Garden City AL8 6LQ
Received 6 Jan 2021
Decided - Granted6/2019/0797/VAR
Variation of condition 5 (Access arrangements on drawing T278-08 Rev A and Site Plan 1268-CHE 103) and condition 12 (approved drawings) on planning permission 6/2017/2141/VAR
Aldi Foodstore Ltd Bessemer Road Welwyn Garden City AL7 1HH
Received 2 Apr 2019
Decided - Refused6/2019/0436/PN1
Prior approval for change of use of part of an agricultural grain store to a flexible commercial use within Use Class B8 (storage or distribution)
Potterells Farm, Station Road, Welham Green, Hatfield, AL9 7PG
Received 26 Feb 2019
Decided - Granted6/2024/0362/FULL
Installation of a Daikin 2MXM50A external AC unit in the carport below Flat 8 Birkin Court
8 Birkin Court Welwyn Garden City AL7 3FA
Received 26 Feb 2024
Decided - Granted6/2018/2886/HOUSE
Alterations to openings and roof to faciliate conversion of store room to habitable space
36 Woodland Rise Welwyn Garden City AL8 7LF
Received 9 Nov 2018
Decided - Granted6/2024/1929/EMT
1x Magnolia to lift to 2.4m above ground level, shorten limbs growing over neighbouring boundary by approximately 1m. 1x Lilac to remove to ground level. 1x Apple to reduce by approximately 1.2m in height and 1m in width. Remove right hand stem to approximately 450mm from union.
7 Coneydale Welwyn Garden City AL8 7RX
Received 9 Oct 2024
Decided - Granted6/2018/2544/HOUSE
Erection of front porch and replacement of existing garage roof to pitched tiled roof
Digswell Water House Digswell Lane Welwyn AL6 0BY
Received 3 Oct 2018
Decided - Granted6/2015/2183/EM
Erection of single storey side extension
1 Rooks Hill, Welwyn Garden City, AL8 6EU
Received 1 Oct 2015
Decided - Granted6/2025/2134/HOUSE
Erection of a single storey rear extension and alterations to fenestration
79 Homestead Road Hatfield AL10 0QP
Received 7 Oct 2025
Decided - Refused6/2017/2899/LAWP
Certificate of lawfulness for the replacement of an outbuilding
42 The Ridgeway Cuffley Potters Bar EN6 4BA
Received 14 Dec 2017
Decided - GrantedS6/2013/0920/FP
Erection of front porch
2 Parsonage Road, Welham Green, HATFIELD, AL9 7LZ
Received 1 May 2013
Decided - Granted6/2022/0063/EM
Erection of a part single storey, part two storey rear extension and conversion of garage to habitable use
22 Rooks Hill Welwyn Garden City AL8 6ET
Received 11 Jan 2022
Decided - GrantedS6/2004/0741/LB
ERECTION OF SINGLE STOREY REAR EXTENSION AND ALTERATIONS.
6 TOLMERS PARK MEWS, NEWGATE STREET, HERTFORD, SG138RG
Received 18 May 2004
Appeal Decided - Allowed6/2024/1153/HOUSE
Erection of two storey rear extension, single storey side and rear extensions following demolition of existing garage, insertion of rooflights and installation of solar panels
15 Guessens Road Welwyn Garden City AL8 6QL
Received 20 Jun 2024
Decided - Granted6/2016/0378/TPO
Works to 4 Sweet Chestnut trees to include, Reduce (T2) by 2m, remove branch from (T3) to give 1m clearing, reduce (T4) by 25% and lift (T5) crown to 4m, reduce by 2m and removal of lateral overhanging branch. Covered by TPO 404
18 Great North Road Welwyn AL6 0PS
Received 3 Mar 2016
Decided - GrantedW6/2007/1989/EM
ERECTION OF DOUBLE GARAGE IN REAR GARDEN
160 Knella Road, Welwyn Garden City, AL7 3NJ
Received 31 Dec 2007
Decided - Granted6/2018/1777/HOUSE
Erection of single storey rear extension, two storey side extension and alteration to the existing roof to form a crown roof
1 Warwick Close Cuffley Potters Bar EN6 4RT
Received 3 Jul 2018

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