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

32,794Searchable applications

303Recorded as pending

87%Approval rate · 27,452 approved or refused records

3,580Refused applications

23,872 approved · 3,580 refused · 1,715 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 20 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2013/2612/FP
Erection of two storey side and rear extensions and alterations to front and side elevations
59 Blakemere Road, Welwyn Garden City, AL8 7PQ
Received 17 Dec 2013
Decided - GrantedN6/2015/0951/FP
Erection of two dwellings with garages following demolition of existing dwelling
30 School Lane Welwyn AL6 9PH
Received 1 May 2015
Decided - GrantedN6/2015/0106/LUP
Certificate of lawfulness for the proposed removal of existing garage door and replace with window. Internal alterations to enlarge opening from garage into the main house.
26 Wolves Mere Woolmer Green Knebworth SG3 6JW
Received 22 Jan 2015
Decided - Granted6/2016/0269/LAWP
Certificate of lawfulness for the proposed loft conversion, hip to gable roof construction and internal alterations of works and the erection of a brick wall along the south east boundary.
16 Selwyn Drive, Hatfield, AL10 9NJ
Received 15 Feb 2016
Decided - Granted6/2023/0294/TPO
2 x Oak trees T1 & T2 - to remove major deadwood over access road and reduce low limbs from over buildings by 1m (1 currently touching chimney stack), crown lift to 5m. Both trees are overhanging privately owned industrial property and access road in Brownfields.
17-21 Brownfields Welwyn Garden City AL7 1AN
Received 7 Feb 2023
Decided - Granted6/2023/1886/FULL
Erection of 6 dwellings with associated car parking, landscaping, bin storage and drainage, following the demolition of existing buildings including closed vacant Public House, garage and structures
The Long And Short Arm 18 Lemsford Village Welwyn Garden City AL8 7TN
Received 11 Sept 2023
Decided - Withdrawn6/2024/0321/EMT
G1 x 2 maple communal area to crown thin 25%.
Hanover House Hyde Valley Welwyn Garden City AL7 4DA
Received 19 Feb 2024
Decided - Granted6/2021/0806/LAWP
Certificate of lawfulness for a hip to gable and erection of dormer to rear
371 St Albans Road West Hatfield AL10 9RU
Received 12 Mar 2021
Decided - Refused6/2024/1402/TPO
TPO 1052 (2023) T2 Oak Tree - remove the tree completely as over the weekend 2 x 30 foot branches fell from the main trunk - unpredictable nature of the falling major branches, representing a clear danger to life and property
14 Heronfield Little Heath Potters Bar EN6 1JA
Received 23 Jul 2024
Decided - Granted6/2019/1793/LAWP
Certificate of lawfulness for the installation of two roof lights
34 Sherrardspark Road Welwyn Garden City AL8 7JS
Received 22 Jul 2019
Decided - Granted6/2016/0503/PN8
Prior approval for the erection of a single storey rear extension, measuring 5m in depth, 3m in height and 2.5m to the eaves.
10 Dodwood, Welwyn Garden City, AL7 3HE
Received 16 Mar 2016
Decided - Granted6/2025/0507/EMT
Lawson cypress hedge to remove to ground level. 1 x Lawson cypress to reduce by 3m in height
12 High Grove Welwyn Garden City AL8 7DW
Received 19 Mar 2025
Decided - Granted6/2026/0622/COND
Submission of details pursuant to Condition 7 (CEMP) and 8 (Badger Survey) on planning permission 6/2024/2418/MAJ
26 Station Road Welham Green Hatfield AL9 7PG
Received 9 Apr 2026
Decided - Refused6/2015/1614/COND
Approval of details reserved by condition 3 (landscaping) and condition 4 (rendering) on planning permission N6/2014/0879/FP
2A The Drive Welwyn AL6 0TR
Received 16 Jul 2015
Decided - Granted6/2026/0228/EMT
1 x Himalayan birch to remove in sections to ground level. Tree declining with mainstem. Dead 1 x Ash (left) to reduce by 3m height and 2m width - Tree becoming large and dominating at back of the garden. Reduce to allow more light and space to rest of the garden 1 x Ash (right) to reduce by 2.5m height and 1.5m width, Tree becoming large and dominating at back of the garden. Reduce to allow more light and space to rest of the garden 1 x Cockspur thorn to reduce by 1m height and width, Old tree with decayed limbs. Reducing to provide a safe structural canopy Whilst we understand tree removal often necessitates re planting, ideally we would not wish to replant as this would prolong the problem of light and space we are trying to resolve
116 Parkway Welwyn Garden City AL8 6HN
Received 9 Feb 2026
Decided - Refused6/2024/0056/TPO
1 x Fir Tree (T3) - To remove and plant smaller specimen. Tree becoming very big and is the likely cause of the subsidence of our common pathway TPO 675 (2017)
1 New Place Welwyn AL6 9QA
Received 9 Jan 2024
Decided - GrantedN6/2015/0526/FP
Erection of single storey rear extension
20 Turmore Dale, Welwyn Garden City, AL8 6HS
Received 11 Mar 2015
Decided - Granted6/2017/1071/EIA
Scoping request for a proposed residential-led development
Land North East of Welwyn Garden City
Received 15 May 2017
Decided - Granted6/2018/0800/HOUSE
Erection of a single storey side and rear extension, installation of rear dormers, front roof light and internal alterations
40 Bluebridge Road Brookmans Park Hatfield AL9 7SA
Received 23 Mar 2018
Decided - Granted6/2024/0559/EMT
Laburnum tree to fell.
105 Attimore Road Welwyn Garden City AL8 6LG
Received 21 Mar 2024
Decided - Granted6/2018/1793/HOUSE
Erection of first floor side extension and conversion of garage including alterations to openings
107 Hatfield Road Little Heath Potters Bar EN6 1HZ
Received 6 Jul 2018
Decided - Granted6/2015/2522/EM
Proposed driveway, front garden and parking area
30 Marley Road, Welwyn Garden City, AL7 4BS
Received 17 Dec 2015
Decided - Withdrawn6/2017/2965/HOUSE
Erection of first floor side extensions over existing garage and utility room. Conversion of existing garage and alterations to existing porch, new front door position and associated landscape alterations
14 Guessens Road Welwyn Garden City AL8 6QR
Received 22 Dec 2017
Decided6/2019/3158/TC
Fell 1 x Laurel tree and 2x Conifer trees
49 Bridge Road Welwyn Garden City AL8 6UH
Received 16 Dec 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