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

24,068Searchable applications

313Recorded as pending

86%Approval rate · 19,696 approved or refused records

2,740Refused applications

16,956 approved · 2,740 refused · 1,255 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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 - Withdrawn6/2022/0584/HOUSE
Erection of an outbuilding to provide a home gym and office
Folly Lodge And Arch Swanley Bar Lane Little Heath Potters Bar EN6 1NN
Received 14 Mar 2022
Decided - Granted6/2019/2982/HOUSE
Erection of a single storey rear extension following demolition of existing conservatory
95 Ludwick Way Welwyn Garden City AL7 3PL
Received 27 Nov 2019
Decided - Granted6/2024/1315/EM
Erection of single storey rear extension
18 Creswick Court Welwyn Garden City AL7 3SX
Received 10 Jul 2024
Decided - Granted6/2026/0496/EM
Proposed installation of an air source heat pump, solar panels, battery storage and an EV charging point
165 Handside Lane Welwyn Garden City AL8 6TA
Received 17 Mar 2026
Decided - Granted6/2019/0438/LB
Reinstatement of fire damaged squash court
3 The Old Rectory Hill Farm Lane Ayot St Lawrence AL6 9BT
Received 26 Feb 2019
Decided - Granted6/2020/2309/HOUSE
Raising of the existing garage roof to facilitate the erection of single storey front extension.
52 Rosedale Welwyn Garden City AL7 1DR
Received 9 Sept 2020
Decided - Granted6/2025/0077/PN8
Prior approval for the erection of a single storey rear extension measuring overall 4.5m in depth, 3m in height and 3m to the eaves (additional 1.5m onto existing 3m extension)
51 Cranfield Crescent Cuffley Potters Bar EN6 4DZ
Received 20 Jan 2025
Decided - Granted6/2017/1228/EM
Extension and replacement of existing driveway with block paving, removal of existing Red Robin tree to be replaced with 1 x Flamingo Willow, removal of existing Beech hedges to be replaced with 12 x Portuguese Laurel hedges and additional evergreen plants along the border.
20 Turmore Dale Welwyn Garden City AL8 6HS
Received 6 Jun 2017
Decided - Granted6/2021/2033/COND
Submission of details pursuant to condition 1 (sample of materials) on planning permission 6/2018/1427/FULL
Twelve Apostles Church Kentish Lane Hatfield AL9 6JY
Received 5 Jul 2021
Decided - Granted6/2020/0597/EM
Reduce 2x Hornbeam tree (T1 and T5) by 33% Reduce 1x Silver birch tree (T4) by 33% Reduce 2x Oak tree (T6 and T7) by 4m in width and 2m in height Remove 1x Oak tree (T3) and replace with new species. Remove 1x Silver birch tree (T2)
34 Sherrardspark Road Welwyn Garden City AL8 7JS
Received 3 Mar 2020
Decided - Granted6/2018/2142/TPO
Re Pollard 1x Lime trees T5 and T6 and 1x Yew Tree T18 reshape the top to maintain appearance Covered by TPO 776(2018)
50 Harmer Green Lane Digswell Welwyn AL6 0AT
Received 17 Aug 2018
Decided - Refused6/2017/1952/LAWP
Certificate of Lawfulness for installation of dormer and hip to gable for the facilitation of loft conversion
35 Peplins Way Brookmans Park Hatfield AL9 7UR
Received 31 Aug 2017
Decided6/2020/2409/TC
T1- Oak 3m Crown reduction, T2- Ash Remove low limb, T3 Hornbeam Crown Lift to 3m, T4 Oak Remove low Limb, T5 Ash Remove low limb, T6 Oak 3-4m crown reduction, T7 Oak 3-4m reduction, T8 Oak fell to ground level. T9 Hornbeam Cut back over hang and crown lift 5m, T11 Hornbeam Crown Lift 5m, T12 Hornbeam Crown Lift 5m, T13 T14 T15 group of hornbeam, 3-4m crown reductions, T16 T17 T17a Group 2x oak trees 1 x Acer Fell to ground level, T18 Hornbeam reduce 4m and lift 6m, T19 Hornbeam Cut back and lift 6m, T20 Oak Cut back over hang, T21, Hornbeam Fell to ground level, T22 Hornbeam Heavy Pollard, T23 Hornbeam 3-4m reduction, T24 Oak Fell to ground level, T25 Hornbeam 3-4m Reduction, T26 Acer 3-4m reduction
76 Brockswood Lane Welwyn Garden City AL8 7BQ
Received 21 Sept 2020
Decided - Granted6/2022/2653/EMT
Removal of Lime tree - in severe decline, a lot of dead wood, tops are dead and shedding a lot of branches. Very close to the road and public path - suitable tree to be replanted after
27 Holwell Road Welwyn Garden City AL7 3RE
Received 22 Nov 2022
Decided - Granted6/2020/0912/COND
Submission of details pursuant to conditions 1 (construction method statement) 2 (surface water drainage scheme) 3 (site waste management plan) 4 (arboricultural method statement) 5 (method statement in accordance relevant British Standards and Best Management Practices) 6 (details of finished surface of parking areas) and 7 (details of the external materials of construction) on planning permission 6/2019/2478/MAJ
22 The Common Hatfield AL10 0ND
Received 21 Apr 2020
Decided - Granted6/2019/0107/HOUSE
Erection of a single storey side extension with pitched roofs.
62 Brocket Road Welwyn Garden City AL8 7TU
Received 21 Jan 2019
Decided - Granted6/2024/0800/EM
Brick up window in extension to side of kitchen, and replace kitchen window at rear with bi-fold doors
24 Parkfields Welwyn Garden City AL8 6ED
Received 29 Apr 2024
Decided - Granted6/2022/2285/HOUSE
Erection of ground and first floor rear and side extension and conversation of garage to habitable space
34 Brookside Crescent Cuffley Potters Bar EN6 4QN
Received 3 Oct 2022
Decided - Granted6/2021/3473/LAWP
Certificate of lawfulness for the erection of garden room outbuilding to rear garden
45 Longcroft Lane Welwyn Garden City AL8 6EB
Received 13 Dec 2021
Decided - Withdrawn6/2019/3173/EM
Formation of hard landscaping works including new vehicle crossover and driveway
17 Beehive Green Welwyn Garden City AL7 4BE
Received 18 Dec 2019
Decided - Granted6/2016/1492/FULL
Erection of residential barn
Ponsbourne Grange, Ponsbourne Park, Newgate Street, Hertford, SG13 8QS (formally Grangewood Stables SG13 8QT)
Received 22 Jul 2016
Decided - Refused6/2017/1300/HOUSE
Erection of two storey front, rear and side extensions
12 The Orchard Welwyn Garden City AL8 7PL
Received 14 Jun 2017
Decided - Granted6/2016/1203/EM
Formation of vehicle hardstanding
47 Broomhills, Welwyn Garden City, AL7 1RE
Received 15 Jun 2016
Decided - Granted6/2018/1794/COND
Submission of details pursuant to conditions 1(Material Samples)2 (Landscape works)3 (Revised Car Parking)4 (Refuse and Recycling) 5 (Cycle Parking) on planning application 6/2016/2117/FULL
43 Peartree Lane Welwyn Garden City AL7 3UA
Received 6 Jul 2018

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

View all applications

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