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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
28,851Searchable applications
307Recorded as pending
87%Approval rate · 23,906 approved or refused records
3,208Refused applications

20,698 approved · 3,208 refused · 1,534 withdrawn. Received dates in our records: 1 Nov 1999 to 13 Oct 2026. Most recent record check: 17 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2016/0238/COND

    Approval of details reserved by condition 2 (landscape plan) on planning permission 6/2015/1828/FULL

    25 Marley Road, Welwyn Garden City, AL7 4BT

    Received 3 Feb 2016
  2. Decided - Granted6/2019/2501/EM

    Fell 1 x Plum Tree T1

    9 Linces Way Welwyn Garden City AL7 3JN

    Received 4 Oct 2019
  3. Decided - GrantedN6/2013/2611/FP

    Erection of two storey side extension and single storey front and rear extension

    51 Garden Road Woolmer Green Knebworth SG3 6JZ

    Received 10 Dec 2013
  4. Decided - GrantedN6/2013/2535/FP

    Erection of detached dwelling with associated access

    14 Chestnut Walk Welwyn AL6 0SB

    Received 29 Nov 2013
  5. Decided - GrantedW6/2014/2153/EM

    Removal of privet hedge to enable formation of vehicular hardstanding

    5 Dawley, Welwyn Garden City, AL7 1EA

    Received 1 Oct 2014
  6. Decided - Granted6/2017/1582/HOUSE

    Erection of a front porch, single storey side and single storey rear extension following the demolition of existing garage. Installation of 2 front and 2 rear dormers, 3 rear rooflights, 2 circular high level windows and roof alterations to facilitate conversion of loft to habitable space. Widening of existing driveway.

    9 Wendover Drive Welwyn AL6 9LT

    Received 20 Jul 2017
  7. Decided - Refused6/2019/2234/FULL

    Erection of 1x dwelling following demolition of existing dwelling

    2 Danesbury Park Road Welwyn AL6 9SE

    Received 10 Sept 2019
  8. Decided - Granted6/2022/2679/FULL

    Installation of new conditioning unit on flat roof following removal of existing air conditioning unit

    57-59 Cole Green Lane Welwyn Garden City AL7 3PT

    Received 24 Nov 2022
  9. Decided - Granted6/2025/1352/TPO

    T1 Oak tree that is located in the rear of the property between 24 and 26 Crown reduce height by 3m and side by 2-2.5m, remove deadwood and epicormic growth from the main trunk. This will help manage the size and shape of the tree and allow more light into the surrounding areas TPO 696 (2017)

    26 Mymms Drive Brookmans Park AL9 7AF

    Received 30 Jun 2025
  10. Decided - Granted6/2024/2445/LAWE

    Certificate of lawfulness for the constructive start of N6/2012/0215/S73B

    17 Bracken Lane Welwyn AL6 0RB

    Received 30 Dec 2024
  11. Decided - Granted6/2022/0666/EM

    Erection of garden shed at rear of garden

    254 Howlands Welwyn Garden City AL7 4HF

    Received 21 Mar 2022
  12. Decided - GrantedS6/2014/0939/FP

    Alterations to shop front to spray supporting frames, shutter boxes and guides 'traffic grey'

    Co op Supermarket, 37-39 Bradmore Green, Brookmans Park, Hatfield, AL9 7QR

    Received 25 Apr 2014
  13. Decided - Granted6/2016/1627/EM

    Removal of Sycamore tree

    49 Salisbury Road, Welwyn Garden City, AL7 3RU

    Received 10 Aug 2016
  14. Decided - Granted6/2021/0026/PN8

    Prior approval for the erection of a single storey rear extension measuring 4.5m in depth, 3.2m in height and 2.8m to the eaves

    5 Sycamore Avenue Hatfield AL10 8LZ

    Received 5 Jan 2021
  15. Decided - Granted6/2025/0555/LAWE

    Certificate of existing lawfulness for the commencement of development of planning permission 6/2024/2379/VAR for the variation of condition 10 (drawing numbers) of planning permission 6/2021/0951/FULL for the erection of four, four-bedroom detached dwellings following the demolition of the existing dwelling, the commercial building and the garages on the site

    13 New Road Welwyn Garden City AL8 7TX

    Received 24 Mar 2025
  16. Decided - Refused6/2017/0090/FULL

    Conversion of existing dwelling at 11 Holly Close into two self contained 2-bed flats and extension of front porch

    11 & 11A Holly Close Hatfield AL10 9JB

    Received 17 Jan 2017
  17. Decided - Granted6/2025/0128/LB

    Repair of roof, windows and guttering. Works to remedy damp issue including replacement of concrete floor with timber suspended floor, application of lime mortar to ground floor internal walls and installation of French drains

    1 Church Cottages Church Street Essendon Hatfield AL9 6AS

    Received 27 Jan 2025
  18. Decided6/2025/1492/TC

    5 day notice: 1 x Cherry Plum to remove in sections to ground level due to suffering from cubical brown rot, normally attributed to Laetiporous silphureus

    69 Parkway Welwyn Garden City AL8 6JG

    Received 8 Jul 2025
  19. Decided - Granted6/2020/1720/EMT

    Fell 1x Fir tree and 1x Magnolia tree to rear

    10 Densley Close Welwyn Garden City AL8 7JX

    Received 14 Jul 2020
  20. Decided - Granted6/2023/0796/EM

    Replacement of roof tiles and installation of a 10 Panel solar PV system on the rear

    9 Moorside, Welwyn Garden City, AL7 4QH

    Received 13 Apr 2023
  21. Decided - Granted6/2023/1115/EMT

    1 x Rowan to fell to ground level. Tree is dead 1 x Lilac to reduce by 1m to alleviate weak unions 1 x Beech to reduce to 2m above ground level. Outgrown hedge section

    5 Handside Green Welwyn Garden City AL8 6SQ

    Received 25 May 2023
  22. Decided - Granted6/2019/2877/EM

    Formation of hardstanding and soft landscaping

    23 Heather Road Welwyn Garden City AL8 6XX

    Received 15 Nov 2019
  23. Decided - Granted6/2017/2169/HOUSE

    Removal of section of wall in rear garden to accommodate tongue and groove gate to facilitate access to the rear of the property

    7 Salmon Close Welwyn Garden City AL7 1TR

    Received 25 Sept 2017
  24. Decided - Granted6/2019/0363/TPO

    Remove adventitious growth from Oak (T6) trunk between ground level to 6m in height. Adventitious growth stem diameters from 2-4cm., covered by TP0 119 2018

    3 Hook Lane Northaw Potters Bar EN6 4DA

    Received 14 Feb 2019

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

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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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    Published Updated

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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