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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
21,593Searchable applications
297Recorded as pending
86%Approval rate · 17,484 approved or refused records
2,483Refused applications

15,001 approved · 2,483 refused · 1,106 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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 buildingLocal plan Our Local PlanPre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation AreaArticle 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

  1. Decided - Granted6/2021/2254/EMT

    Fell 1 x Ash tree and 2 x Plum trees

    44 Attimore Road Welwyn Garden City AL8 6LP

    Received 27 Jul 2021
  2. Decided - Granted6/2019/2031/EM

    Erection of single storey rear extension, alterations to openings, erection of fencing and demolition of rear conservatory

    23 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 13 Aug 2019
  3. Decided - Granted6/2019/1932/EM

    Reduce 3 x Leyland Cypress tree by 50%

    6 Ashcombe Welwyn Garden City AL8 7HQ

    Received 7 Aug 2019
  4. Under Consideration6/2026/1503/LAWE

    Certificate of lawfulness for the replacement of damaged and aged windows on the front and rear elevations

    27 Batterdale Hatfield AL9 5JG

    Received 26 Aug 2026
  5. Decided - Granted6/2020/1620/HOUSE

    Erection of a single storey rear extension

    5 Ryelands Welwyn Garden City AL7 4LH

    Received 7 Jul 2020
  6. Decided - Granted6/2021/1667/HOUSE

    Installation of new and replacement doors and windows, blocking existing doors and windows, new metal mesh balustrading, internal alterations, relaying driveway, terrace and steps, erection of timber fence and gate.

    26 Pentley Park Welwyn Garden City AL8 7SB

    Received 25 May 2021
  7. Decided - Granted6/2021/2877/COND

    Submission of details pursuant to condition 7 (external lighting) on planning permission 6/2018/2943/MAJ

    Royal Veterinary College Hawkshead Lane Hatfield AL9 7TA

    Received 7 Oct 2021
  8. Decided - Granted6/2021/0241/HOUSE

    Erection of a two storey rear extension

    31 Gould Close Welham Green Hatfield AL9 7EB

    Received 26 Jan 2021
  9. Decided - Granted6/2025/0079/LAWP

    Certificate of lawfulness for the erection of an outbuilding in the rear garden

    21 Deerswood Avenue Hatfield AL10 8RX

    Received 20 Jan 2025
  10. Decided - Granted6/2019/1307/EM

    Reduce 1x deodar cedar tree by 2m height and width covered by TPO 392(2007)

    126 Handside Lane, Welwyn Garden City, AL8 6SZ

    Received 3 Jun 2019
  11. Decided - Granted6/2018/3082/ADV

    Installation of 19 flat metal plate signs mounted by clamps to HCC lamp standards 15cm x 15cm

    Various Locations in Peartree and Handside Wards

    Received 3 Dec 2018
  12. Decided6/2024/0267/TC

    1 x Norway maple to reduce by approximately 1.5m in height and width - Growing in middle of small garden, they wish to retain size & shape 1 x Fir to reduce by 1.5m in height, reduce lateral branches over the lawn by around 1m. = Reduce crown to balance, other trees have caused biased canopy 1 x Cherry to reduce limbs towards driveway side by no more than 1m, with the aim of trying to provide more balance to the the crown. To provide more balance to canopy

    6 Woodland Rise Welwyn Garden City AL8 7LF

    Received 8 Feb 2024
  13. Decided - Granted6/2022/0466/FULL

    Erection of a single storey part front extension

    Northaw C Of E Primary School Vineyards Road Northaw Potters Bar Hertfordshire EN6 4PB

    Received 28 Feb 2022
  14. Decided - Granted6/2017/1993/HOUSE

    Installation of front window for the facilitation of garage conversion

    31 Chambers Grove Welwyn Garden City AL7 4FG

    Received 5 Sept 2017
  15. Decided6/2020/0670/TC

    Fell 1 x Golden Cypress Tree

    28 Melbourne Court Welwyn Garden City AL8 6LL

    Received 10 Mar 2020
  16. Decided - Granted6/2023/1466/HOUSE

    Erection of ground floor rear and part side extensions, first floor balcony, and alterations to raised patio

    4 The Ridgeway Cuffley Potters Bar EN6 4AR

    Received 14 Jul 2023
  17. Decided - Granted6/2023/1825/EMT

    1. Cotoneaster tree front garden - crown reduction to reduce height and spread by approx 1-2m. 2.Cotoneaster tree rear garden. Remove lower horizontal branch back to parent stem. Reduce crown, height and spread by approx 2-3m.

    7 Elmwood Welwyn Garden City AL8 6LD

    Received 1 Sept 2023
  18. Decided - Granted6/2021/0317/HOUSE

    Erection of a ground floor rear extension, new front porch, new windows to side elevation and alterations to external facing materials

    39 Stag Green Avenue Hatfield AL9 5EB

    Received 2 Feb 2021
  19. Decided - Granted6/2026/0937/EM

    Installation of a solar PV array on the south, east & garage roofs of 52 Woodland Rise, consisting of a standard on-roof mounting system with 12 panels arranged in a mostly rectangular form

    52 Woodland Rise Welwyn Garden City AL8 7LF

    Received 28 May 2026
  20. Decided6/2021/0797/TC

    Fell 1 x Western Red Cedar to ground level Reduce 1 x Apple by 3m height and 2m width Reduce 1 x Apple by 1.2m height and 1m width Reduce 1 x Cherry by 2m height and width and reduce lowest 3 prominent limbs by 3m. Reduce 1 x Laburnum by 1.5m height & width

    50 Fordwich Road Welwyn Garden City AL8 6EY

    Received 11 Mar 2021
  21. Decided - Granted6/2020/0813/COND

    Submission of details pursuant to condition 1 (submission of construction management plan) on planning permission 6/2019/1706/MAJ

    Land to the Rear of Pear Building Shire Park Kestrel Way Welwyn Garden City AL7 1GA

    Received 31 Mar 2020
  22. Decided - Granted6/2017/2596/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension, installation of rooflights, replacement of windows and alterations to existing doors within the rear extension

    24 Ayot Green Ayot St Peter Welwyn AL6 9AB

    Received 8 Nov 2017
  23. Decided - Granted6/2017/1404/TPO

    Removal of Sycamore tree on front boundary of 73 & 77 Attimore Road and reduce Beech tree hedges by 30% on rear boundary of 73 & 69 Attimore Road - Conservation Area

    77, 73 & 69 Attimore Road Welwyn Garden City AL8 6LG

    Received 21 Jun 2017
  24. Decided - Granted6/2022/2832/HOUSE

    Erection of part single storey rear extensions, part first floor side extension over existing double garage with conversion of 1 garage and removal of UPVC cladding in lieu of render finish.

    3 Cylers Thicket Welwyn AL6 9RS

    Received 14 Dec 2022

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.

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  • 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.

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  • 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.

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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.

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