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

24,611Searchable applications

313Recorded as pending

86%Approval rate · 20,174 approved or refused records

2,787Refused applications

17,387 approved · 2,787 refused · 1,294 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/0441/EMT
Crown Reduce 2x London Plane trees by upto 3m
1 Brockswood Lane Welwyn Garden City AL8 7BA
Received 11 Feb 2021
Under Consideration6/2026/0672/COND
Submission of details pursuant to condition number 4 (Surface Water Drainage Scheme) & 6 (method statement for interim and temporary drainage) on planning permission 6/2023/1532/OUTLINE
Land at South Way Hatfield AL10 8HS
Received 15 Apr 2026
Decided - Granted6/2025/1439/COND
Submission of details pursuant to condition 1 (Sample Materials) on planning permission 6/2024/1734/HOUSE
30 Barleycroft Road Welwyn Garden City AL8 6JU
Received 7 Jul 2025
Decided - Granted6/2021/1225/EM
Single storey side and rear extension and installation of two rooflights
5 Fordwich Road Welwyn Garden City AL8 6EX
Received 15 Apr 2021
Decided - Granted6/2016/2528/TPO
Reduce 2 Red Oak trees by upto 30% - Conservation Area
6 Brockett Close Welwyn Garden City AL8 7BN
Received 28 Nov 2016
Decided - Granted6/2023/1277/FULL
Installation of electric vehicle charging points, installation of CCTV system, retention of perimeter fencing and alterations to site fencing to car park
The Beehive Beehive Lane Welwyn Garden City AL7 4BW
Received 19 Jun 2023
Decided - Split6/2017/2763/COND
Submission of Details Pursuant to Conditions: 2 (Material Samples), 8 (Tree Protection/Removal), 11 (Cycle Parking), 15 (External Lighting and CCTV Cameras), 18 (Noise Protection Scheme) and 19 (Acoustic Report) on Planning Permission 6/2016/1739/MAJ dated 02/02/2017
Comet Hatfield St Albans Road West Hatfield AL10 9RH
Received 27 Nov 2017
Decided - Granted6/2016/1636/EM
Removal of two Laurel trees
13 Brockswood Lane, Welwyn Garden City, AL8 7BA
Received 11 Aug 2016
Decided - Granted6/2025/0708/EMT
Front Garden T2 Ash, self set to fell and stump poison; T3 Ash, self set to fell and stump poison; T7 Cherry, self set to fell and stump poison; T8 Cherry, self set to fell and stump poison; T9 Maple, self set to fell and stump poison; T10 Maple, self set to fell and stump poison; & Hedge Beech, in two sections, to reduce in height over two seasons to return to original hedge height of approx. 1.5m Rear Garden T1 Ash, self set to fell and stump poison; T4 Holly, light trim and shape to prune branches from touching adjacent fencing; T5 Hornbeam, crown lift to 2m; & T6 Privet, light trim and shape to prune branches from touching adjacent fencing.
7 The Spinney Welwyn Garden City AL7 3AG
Received 14 Apr 2025
Decided - Granted6/2016/0345/MAJ
Erection of a 2 storey (plus loft) building to provide 16 two-bedroom (4 person) residential units together with provision for 20 car parking spaces to the rear, a bicycle store to the rear for 10 bicycles and a bin store fronting on to Roe Green Lane, following demolition of two existing dwellings
41-43 Roe Green Lane, Hatfield, AL10 0SH
Received 29 Feb 2016
Decided6/2018/0729/CN
Hawkshead Campus Masterplan
Royal Veterinary College Hawkshead Lane North Mymms Hatfield AL9 7TA
Received 19 Mar 2018
Decided - Granted6/2022/1862/EM
Partial removal of existing hedge, proposed timber fencing replacement
24 Brockswood Lane Welwyn Garden City AL8 7BG
Received 9 Aug 2022
Decided - Refused6/2022/1524/HOUSE
Erection of two storey side extension, first floor rear extension, front porch/canopy infill extension with tiled pitched roof to front canopy
23 Stag Green Avenue Hatfield AL9 5EB
Received 29 Jun 2022
Decided - Granted6/2022/1609/LAWP
Certificate of lawfulness for new roof dormer at 2.5m in height and 5m length and 6m in width, replacement of the two roof purlins and new insulated steel cladding to roof walls of new frame.
Sika Limited Watchmead Welwyn Garden City AL7 1BQ
Received 7 Jul 2022
Decided6/2021/3327/TC
To remove the following: - G1 (Ash, Field Maple, Prunus spp and Beech), T1 (Acer) and T2-T8 (Ash) To reduce overhang from G4 back to the boundary line. All works will be in accordance with BS3998:2010 and take into account any relevant wildlife legislation. Please see arboricultural report identifying tree species, size, location and recommendations.
22 Parkway Welwyn Garden City AL8 6HG
Received 24 Nov 2021
Decided - Granted6/2019/1378/EM
Erection of a rear single storey extension
26 Cole Green Lane Welwyn Garden City AL7 3PW
Received 5 Jun 2019
Decided - Granted6/2017/1422/FULL
Erection of 2 x 5 bedroom detached dwellings with associated landscaping, following demolition of existing dwelling
30 Upland Drive Brookmans Park Hatfield AL9 6PT
Received 30 Jun 2017
Decided - Granted6/2019/2570/HOUSE
Erection of single storey rear extension with installation of 2 x roof lights, installation of 2 x dormer windows and 1x roof light to facilitate loft conversion and conversion of garage to habitable space with alterations to openings
40 Langstone Ley Welwyn Garden City AL7 1FQ
Received 14 Oct 2019
Decided - Granted6/2020/2998/EMT
Fell and remove 1 x dead maple tree from the back garden
3 Bushey Green, Welwyn Garden City, AL7 3HA
Received 13 Nov 2020
Decided - Granted6/2018/0136/LB
Restoration, repair and replacement of existing windows.
Oshwal Centre Coopers Lane Road Northaw Potters Bar EN6 4DG
Received 16 Jan 2018
Decided - Refused6/2017/0224/PN8
Prior approval for the erection of a single storey rear extension measuring 4.28m. in depth, 3.8m. in height and 3m. to the eaves.
9 Parsonage Road Welham Green Hatfield AL9 7NA
Received 7 Feb 2017
Decided - Granted6/2023/1030/FULL
Erection of a replacement dwelling
23 Tolmers Road Cuffley Potters Bar EN6 4JF
Received 16 May 2023
Decided - Granted6/2020/0420/HOUSE
Erection of a single storey rear extension, installation of canopy over courtyard and conversion of garage to facilitate habitable space
4 Salisbury Hall Drive Hatfield AL10 9GJ
Received 14 Feb 2020
Decided - Refused6/2019/2163/HOUSE
Erection of first floor side extension and single storey rear extension. installation of a rear dormer and 4 x roof lights to facilitate loft conversion
37 Peplins Way, Brookmans Park, Hatfield, AL9 7UR
Received 2 Sept 2019

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