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

24,610Searchable applications

313Recorded as pending

86%Approval rate · 20,173 approved or refused records

2,787Refused applications

17,386 approved · 2,787 refused · 1,294 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/1362/COND
Submission of details pursuant to condition of condition 6 (details/samples of materials) on planning W6/2015/1245/EM, dated 04/08/2015
6 Marsden Road Welwyn Garden City AL8 6XZ
Received 17 May 2018
Decided - Granted6/2021/3082/EM
Erection of a single storey side extension following removal of existing shed
143 Hollybush Lane Welwyn Garden City AL7 4JT
Received 27 Oct 2021
Decided - Granted6/2017/0612/EM
H1- Conifer, to reduce top by 2meters and sides by 1meter, H2- Mixed, to trim back to boundary, by 1meter, T1- Sycamore, to crown lift to 5meters, T2- Holly, to dismantle to ground level, T3- Thorn, to pollard and T4-T5 Acacia, to dismantle to ground level
41 Digswell Rise Welwyn Garden City AL8 7PP
Received 27 Mar 2017
Decided - Granted6/2025/1869/COND
Submission of details pursuant to condition 6 (Drainage Operational and Maintenance manual) and condition 23 (Drainage Operational and Maintenance manual), on planning permission 6/2021/2857/MAJ
17 Tewin Road Welwyn Garden City AL7 1BD
Received 2 Sept 2025
Appeal Decided - Dismissed6/2017/1962/HOUSE
Erection of two storey front extension and gable front and alterations to form pitched roof to garage
Woodfield Cottage Woodfield Lane Brookmans Park Hatfield AL9 6JJ
Received 30 Aug 2017
Decided - Granted6/2021/1896/EMH
Erection of a part two, part one storey rear extension
142 Knightsfield Welwyn Garden City AL8 7HD
Received 21 Jun 2021
Decided - Granted6/2017/2157/HOUSE
Erection of a single storey side and part two, part single storey rear extension following demolition of existing sunroom, alterations to openings and replacement of UPVC windows, retiling of roof, over-cladding existing rendered elevations and replacement driveway paving
15 Mannicotts Welwyn Garden City AL8 7BW
Received 25 Sept 2017
Decided - Withdrawn6/2021/1703/EMT
Crown reduce purple plum by 3m Re-pollard hawthorn by 3m
34 Fordwich Road Welwyn Garden City AL8 6EY
Received 27 May 2021
Decided - Granted6/2017/2672/TPO
Reduce Oak tree by 30% - TPO 705 (2017)
8 Kilnfield Welwyn Garden City AL7 1NR
Received 15 Nov 2017
Decided - Granted6/2017/2972/FULL
Erection of a single storey music/drama block and subsequent demolition of existing music and drama accommodation
Stanborough School Lemsford Lane Welwyn Garden City AL8 6YR
Received 28 Dec 2017
Decided - Granted6/2024/1758/COND
Submission of details pursuant to condition number 10 (Samples of materials) on planning permission 6/2021/3422/MAJ
Car Park Salisbury Square Hatfield AL9 5AD
Received 12 Sept 2024
Decided - Granted6/2026/0940/ADV
Installation of 1 x illuminated fascia sign, 1 x illuminated projecting sign, 1no. mounted barci logo sign, menu box illuminated sign and festoon lighting.
The Howard Centre Unit 32 Howardsgate Welwyn Garden City AL8 6HA
Received 28 May 2026
Decided - Granted6/2017/1606/TPO
Fell 18 Trees: 16 x Hornbeams, 1 x Oak tree and 1 x dead/dying Hawthorn tree. The remainder of trees at this address to have an 30% canopy reduction back to nature regrowth points.
2A Rollswood Road Welwyn AL6 9TX
Received 24 Jul 2017
Decided - Granted6/2018/0873/OUTLINE
Outline application for a residential-led development of up to 650 residential units, a two-form entry primary school, provision of six gypsy and traveller pitches, a new local centre (comprising retail and community uses), new vehicular access from Herns Lane, car parking, associated infrastructure and landscaping works with all matters except access reserved
Land to North East of Welwyn Garden City Panshanger Welwyn Garden City AL7 2QJ
Received 29 Mar 2018
Decided - Refused6/2022/1453/FULL
Subdivision of single dwelling house (C3) to 2no. dwelling flats (C3)
25A Station Road Digswell Welwyn AL6 0DU
Received 22 Jun 2022
Appeal Decided - Allowed6/2018/0373/FULL
Erection of 2 x detached properties following demolition of existing dwelling
32 Upland Drive Brookmans Park Hatfield AL9 6PT
Received 5 Feb 2018
Decided - Granted6/2024/1024/TPO
T3 Holly - 20% crown reduction, 4m crown lift and lateral crown reduction of overlong branches, on the road side pruned in line with the kerb edge, and similar pruning on the opposite side to keep the tree in balance. Sever and strip the ivy.
22 Parkside Welwyn AL6 9DQ
Received 3 Jun 2024
Decided - Granted6/2022/1144/HOUSE
Erection of single storey rear extension and front port window on gable wall, rendering of existing property, alterations to fenestration, insertion of port window on front elevation and replacement of existing roof and garage roof tiles
59 Brookside Crescent Cuffley Potters Bar EN6 4QP
Received 18 May 2022
Decided - Refused6/2019/1863/LAWP
Certificate of lawfulness for the erection of rear dormer to facilitate loft conversion
11 Glebe Cottages Essendon Hatfield AL9 6HQ
Received 30 Jul 2019
Decided - Granted6/2019/3080/ADV
Installation x 1 fascia mounted non illuminated sign
1 Bradmore Buildings Bradmore Green Brookmans Park Hatfield AL9 7QR
Received 5 Dec 2019
Decided - Refused6/2023/0161/FULL
Installation of a prescription collection machine within the pharmacy carpark
110 Peartree Lane Welwyn Garden City AL7 3UJ
Received 23 Jan 2023
Decided - Granted6/2023/1052/LAWP
Certificate of lawfulness to install 5 solar panels to rear roof of property
6 The Quadrangle Welwyn Garden City AL8 6SG
Received 18 May 2023
Decided - Granted6/2022/1232/EMT
1 x Lawson Cypress to reduce by approximately 3-4m and match up with trees at the rear
368 Knightsfield Welwyn Garden City AL8 7NG
Received 25 May 2022
Decided - Granted6/2018/0293/HOUSE
Erection of a part two storey and part single storey rear extension and the replacement of existing double garage with a single garage. Construction of new roof over existing. Minor works to rear garden
30 Hertford Road Digswell Welwyn AL6 0DB
Received 30 Jan 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