England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates

17,511Searchable applications

298Recorded as pending

86%Approval rate · 14,112 approved or refused records

1,938Refused applications

12,174 approved · 1,938 refused · 886 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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

Decided - Granted6/2021/1499/TPO
Fell 2 x Lime trees (T21, T26), 1 x Wild Cherry tree (T22), 1 x Wild Service tree (T55), 1 x Elm tree (T58) and 1 x Lime tree (T61), Sever ivy at base up to 2m on main stem of 4 x Sycamore trees (T4, T5, T12, T49) and 1 x Lime tree (T74), Raise crown to 4m on 1 x Deodar tree (T1), Remove deadwood >250mm on 1 x Lime tree (T8) and 2 x Sycamore trees (T10, T27) and 2 x Scots Pine trees (T53, T59), Reduce 1 x Hawthorn tree (T11) to 4-5m, Reduce 3 x Sycamore trees (T32, T33, T73) and 3 x Lime trees (T56, T67, T68) and 1 x Ash tree (T65) by 1m, Raise crown to 4m on 1 x Norway Maple tree (T57), Reduce 1 x Norway Maple tree (T71) to 5-6m, Reduce 2 x Holly trees (T89, T90) by 2m, Reduce 2 x Ornamental trees (T97. T98) and 1 x Magnolia tree (T99) by approx >1m W1, maintain 5m road clearance
42 New Road Digswell Welwyn AL6 0AH
Received 11 May 2021
Decided - Granted6/2023/0965/EMT
Height reduction of seven Leylandii-type evergreen trees. To reduce height to 5m The trees at their current height are blocking light into both 27 and 29 Reddings
29 Reddings Welwyn Garden City AL8 7LA
Received 5 May 2023
Decided6/2020/2034/TC
1 x Copper beech (T1) to fell and grind out stump.
85 The Vineyard Welwyn Garden City AL8 7PX
Received 13 Aug 2020
Decided - Granted6/2020/0389/HOUSE
Erection of a single storey, part two storey rear extension, following the demolition of existing rear conservatory and alterations to existing fenestration
22 Lords Wood Welwyn Garden City AL7 2HF
Received 12 Feb 2020
Decided6/2023/1004/TC
T1, T2, T3 Leyland Cypress - to reduce height by 3 meters as they are becoming too big, shading the neighbour's property
19 Turmore Dale Welwyn Garden City AL8 6HT
Received 11 May 2023
Under Consideration6/2022/2076/COND
Submission of details pursuant to condition 2 (hard and soft landscaping works) on planning permission N6/2013/2727/DE
The Frythe 5 Digswell Hill Welwyn AL6 9AR
Received 7 Sept 2022
Decided - Granted6/2026/0836/EM
Erection of single storey rear extension with roof lanterns, covered verandah area, installation of roof lantern to existing side roof and replacement window to rear
307 Knightsfield Welwyn Garden City AL8 7NJ
Received 12 May 2026
Decided - Refused6/2023/0657/HOUSE
Erection of the front porch
9 South Drive Cuffley Potters Bar EN6 4HP
Received 23 Mar 2023
Decided - Granted6/2022/0157/PN8
Prior approval for the erection of a single storey rear extension 8m in depth, 2.79m to the eaves and 2.79m in height
53 The Ridgeway Cuffley EN6 4BD
Received 21 Jan 2022
Decided - Withdrawn6/2024/2360/COND
Submission of details pursuant to condition number 1 (External materials) on planning permission 6/2021/1668/LB
26 Pentley Park Welwyn Garden City AL8 7SB
Received 10 Dec 2024
Decided - Granted6/2019/2798/HOUSE
Erection of part single storey/ part two storey rear and side extension and conversion of garage to habitable accommodation
28 Burleigh Way Cuffley Potters Bar EN6 4LG
Received 5 Nov 2019
Decided6/2020/1713/TC
Reduce x1 Cherry T1 by 1.5m Reduce x1 Cherry T2 by1.5m Reduce x1 Laburnum T3 by 1m Fell x1 Lawson Cypress T4 to fell to ground level Reduce x1 Laburnum T5 by 1m
18 The Old Drive Welwyn Garden City AL8 6TB
Received 14 Jul 2020
Decided - Refused6/2023/1983/COND
Submission of details pursuant to condition 1 (landscaping), 2 (refuse and recycling) and 3 (cycle storage) on planning permission 6/2022/2883/FULL
109 Woods Avenue Hatfield AL10 8QQ
Received 26 Sept 2023
Decided - Granted6/2022/0566/TPO
Fell 11 x Horse Chestnut trees (T2, T3, T5, T6, T9, T11, T12, T13, T14, T15 & T20) Fell 3 x Ash trees (T4, T10 & T19) Fell 1 x Pine tree (T8) Fell 1 x dead Elm tree (T1) Fell 1 x dead Oak tree to 4m and retain as a monolith for habitat (T18) Reduce 1 x Beech (T16) by 30% Trim 1x Yew by 1 metre (T17) covered by TPO 658 (2017) previously approved under 6/2017/2739/TPO
45 Harmer Green Lane Digswell Welwyn AL6 0AP
Received 10 Mar 2022
Decided - Granted6/2021/0379/COND
Submission of details pursuant to condition 1(c) (Tree work) and 2 (materials)
105 Attimore Road Welwyn Garden City AL8 6LG
Received 8 Feb 2021
Decided6/2021/1669/TC
Pine - fell
37 Valley Road Welwyn Garden City AL8 7DH
Received 25 May 2021
Decided - Granted6/2025/2497/EM
Erection of a single storey rear extension to replace existing, insertion of rooflights to the rear slope
54 Parkway Welwyn Garden City AL8 6HH
Received 1 Dec 2025
Decided - Granted6/2024/0520/EMT
Removal of dead Cherry Tree with replacement of same species planted
33 Blakemere Road Welwyn Garden City AL8 7PQ
Received 18 Mar 2024
Decided - Refused6/2021/2003/EM
Erection of a single storey rear/side extension and alterations to openings, extension of existing patio area, new steps to access rear garden.
171 Knightsfield Welwyn Garden City AL8 7QG
Received 1 Jul 2021
Decided - Granted6/2024/2252/COND
Variation of condition 1 (Scheme to mitigate noise) and 2 (Odour impact assessment) on planning permission 6/2024/1465/FULL
6 Harpsfield Broadway Hatfield AL10 9TF
Received 25 Nov 2024
Decided - Granted6/2021/0518/TPO
Fell 2 x Betula Pendula trees, fell 3 x Pinus Sylvestris trees, fell 3 x Prunus Avlum trees, fell 1 x Acer Pseudoplatanus tree, fell 2 x Acer Campestre trees, fell 1 x Salix sp tree, fell 1 x Fraxinus Excelsior tree, pollard 1 x Carpinus Betulus tree covered by TPO 627
1 Birchall Wood Welwyn Garden City AL7 2HL
Received 17 Feb 2021
Decided - Granted6/2022/1230/COND
Submission of details pursuant to condition 1 (structural interventions), condition 2 (windows, doors, rooflights, eaves, verges and junctions), condition 3 (external materials) and condition 4 (insulation) on planning permission 6/2021/0060/LB
58 Hertford Road Digswell Welwyn AL6 0BX
Received 25 May 2022
Decided - Withdrawn6/2020/2457/VAR
Variation of condition 2 (approved plans list) attached to planning permission N6/2011/0938/FP for the retention and alteration of mezzanine floor and new parking layout
Unit 4 Mallow Park Watchmead Welwyn Garden City AL7 1GX
Received 25 Sept 2020
Decided - Granted6/2023/2424/EMT
T1 Hornbeam - cut back adjacent property overhang by 30% of branch length, lift low growth to 3m T2 Hornbeam - cut back adjacent property overhang by 30% of branch length, lift low growth to 3m T4 Hornbeam - cut back adjacent property overhang by 30%, lift low growth to 3m T6 Hornbeam - cut back adjacent property overhang by 30%, lift low growth to 3m T7 Hornbeam - cut back overhang by 30%, lift low growth to 3m T9 Hornbeam - remove deadwood T10 Birch - deadwood T14 Hornbeam - crown reduce by 20% T15 Hornbeam - lift low growth to 5.1m over entrance carriageway T16 Hornbeam - crown reduce by 20% T17 Sever Ivy and clear around wires creating a 1m clearance G1 Hornbeams - crown reduce by 20% All trees covered by TPO 928 (2018)
Land at Scholars Mews, Welwyn Garden City, AL8 7JQ
Received 1 Dec 2023

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