PlanningTrack
Get started

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
31,734Searchable applications
303Recorded as pending
87%Approval rate · 26,503 approved or refused records
3,473Refused applications

23,030 approved · 3,473 refused · 1,675 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 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 - Granted6/2022/0530/ADV

    Installation of satin black composite sign with stencil cut lettering all backed in 3mm opal acrylic Perspex, back lit with 7k led modules

    97 Bradmore Green Brookmans Park Hertfordshire AL9 7QT

    Received 7 Mar 2022
  2. Decided - GrantedW6/2014/2197/TE

    Fell Ailanthus Altissima tree located in rear garden

    7 Attimore Road, Welwyn Garden City, AL8 6LH

    Received 6 Oct 2014
  3. Decided - Granted6/2021/0176/EMT

    Pollard of Lime Tree to 8m in height. (T2)

    4 The Limes Welwyn Garden City AL7 4BD

    Received 20 Jan 2021
  4. Decided - Granted6/2018/2582/HOUSE

    Erection of single storey rear extension

    24 Four Acres Welwyn Garden City AL7 4NW

    Received 8 Oct 2018
  5. Decided - Granted6/2020/3344/EMT

    1 x Oak to reduce low limb over fence by 2.5m. Reduce 4 limbs over shed by 3m. This will allow more light into neighbours garden 1 x Sycamore to remove left stem due to safety. 1 x Ash to remove 3 low branches over garden to clear phone lines and allow more light

    26 Beehive Green, Welwyn Garden City, AL7 4BG

    Received 14 Dec 2020
  6. Decided - Granted6/2015/2112/TPO

    Reduce Tulip tree by 20% - Conservation Area.

    14 Dellcott Close, Welwyn Garden City, AL8 7BD

    Received 12 Oct 2015
  7. Decided - Withdrawn6/2020/2008/HOUSE

    Demolition of existing derelict garage with replacement single storey annex with single storey link extension to side of main property.

    12 Meadow Green Welwyn Garden City AL8 6SS

    Received 11 Aug 2020
  8. Decided - Granted6/2020/3101/TPO

    Western Red Cedar (T6) - Dead and Dangerous Tree Application (TPO 515 (2016))

    Land at Entech House London Road Woolmer Green SG3 6JR

    Received 20 Nov 2020
  9. Decided - GrantedS6/2014/1415/LUE

    Certificate of lawfulness for existing use of House in Multiple Occupation (C4)

    11 Chennells Hatfield AL10 9HZ

    Received 24 Jun 2014
  10. Decided - Granted6/2019/1726/EM

    Erection of a conservatory to the rear following removal of bay window

    64 Parkway Welwyn Garden City AL8 6HH

    Received 12 Jul 2019
  11. Decided - Granted6/2020/1208/EMT

    Fell 1x Portuguese Laurel Tree

    10 Densley Close Welwyn Garden City AL8 7JX

    Received 29 May 2020
  12. Decided - Granted6/2026/0070/EM

    Erection of a single storey rear infill extension, garage conversion, outbuilding conversion to study with raising of roof

    345 Knightsfield Welwyn Garden City AL8 7NB

    Received 15 Jan 2026
  13. Decided - Granted6/2022/0959/HOUSE

    Conversion of existing garage into residential annexe

    103 Robbery Bottom Lane Welwyn AL6 0UL

    Received 22 Apr 2022
  14. Decided - Granted6/2021/1203/EMH

    Extension of driveway to enable two cars to park

    110 Mill Green Road Welwyn Garden City AL7 3XE

    Received 13 Apr 2021
  15. Decided - Granted6/2019/2115/HOUSE

    Erection of porch, two storey rear extension, removal of chimney, installation of pitch roof to existing side extension, and alterations to openings, formation of patio and drive layout

    3 High Grove Welwyn Garden City AL8 7DW

    Received 27 Aug 2019
  16. Decided - Withdrawn6/2023/0783/HOUSE

    Erection of two storey side extension and erection of single storey extensions to rear and southwest elevations following demolition of single storey side extension and car port

    93 Harmer Green Lane Digswell Welwyn AL6 0EY

    Received 11 Apr 2023
  17. Decided - Granted6/2021/2142/LAWP

    Certificate of lawfulness for erection of two storey rear extension.

    19 Carbone Hill Northaw Potters Bar EN6 4PJ

    Received 15 Jul 2021
  18. Decided - Granted6/2017/2891/EM

    Demolition of existing conservatory & erection of single storey flat roof extension.

    3 Downfields Welwyn Garden City AL8 6XR

    Received 11 Dec 2017
  19. Decided - GrantedW6/2014/2593/TE

    Semi pollard willow tree

    18 Sheepcote Welwyn Garden City AL7 4QD

    Received 26 Nov 2014
  20. Decided - Granted6/2022/1638/TPO

    T2 1 x Hornbeam to crown lift to 6m on the west and north western side of the crown and trim back branches to give 1.5m clearance from the dwellings elevation and roofline, due to nuisance. G1 Group of Hornbeam and Cherry (neighbours trees) to cut back overhang to cut back all trees along side of the property back to boundary line, approximately 3m. To include all trees up to parking bay adjacent to garage due to nuisance. T3 1 x Hornbeam to reduce lateral branches over next doors driveway by 2.5m - reduce lateral branches over parking area of 20 Bracken Lane to lessen the impact of bird faeces deposited on cars and driveway. All trees covered by TPO 748 (2018)W1

    10 Oaklands Rise Welwyn AL6 0RN

    Received 12 Jul 2022
  21. Decided - Withdrawn6/2025/1009/COND

    Submission of details pursuant to condition number 6 (Surface Water Drainage), on planning permission 6/2024/0105/MAJ

    Land north of The Meadway Cuffley Potters Bar EN6 4ET

    Received 29 May 2025
  22. Decided - Refused6/2020/1680/LAWP

    Certificate of Lawfulness for erection of summer house in rear garden

    14 Four Acres Welwyn Garden City AL7 4NW

    Received 13 Jul 2020
  23. Decided - Granted6/2020/3198/TPO

    1 x Oak to fell to ground level 1 x Beech to remove compromised limb by sectional felling

    23 Warren Way Digswell Welwyn AL6 0DQ

    Received 30 Nov 2020
  24. Decided - Granted6/2022/1124/LAWP

    Certificate of lawfulness for proposed alterations to existing dwelling

    13 Mandeville Rise Welwyn Garden City AL8 7JT

    Received 16 May 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.

    UK research
    Published Updated

  • 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 Updated

  • 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 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.

Check collection coverage

More planning authorities in England

Browse all authorities