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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
32,697Searchable applications
303Recorded as pending
87%Approval rate · 27,364 approved or refused records
3,577Refused applications

23,787 approved · 3,577 refused · 1,711 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/1884/EMH

    Convert existing garage into a gym, installation 2 roof lights to existing flat roof and external alterations to front.

    66 Valley Road Welwyn Garden City AL8 7DN

    Received 29 Jul 2020
  2. Decided - Withdrawn6/2023/0347/VAR

    Variation of condition 2 (plans) on planning permission 6/2021/1911/HOUSE

    4 Bramble Road Hatfield AL10 9SA

    Received 14 Feb 2023
  3. Decided - Granted6/2016/1482/HOUSE

    Erection of a single storey rear extension, following demolition of existing conservatory

    89 Sloansway, Welwyn Garden City, AL7 1NA

    Received 21 Jul 2016
  4. Decided - Granted6/2018/2907/COND

    Submission of details pursuant to condition 3 (surface water drainage scheme) and 4 (maintenance and adoption plan of proposed underground surface water attenuation features) on planning permission 6/2017/2104/MAJ

    51 Bridge Road East Welwyn Garden City AL7 1JR

    Received 13 Nov 2018
  5. Decided - Granted6/2018/0602/EM

    Garage extension onto existing garage.

    62 Thistle Grove Welwyn Garden City AL7 4AN

    Received 5 Mar 2018
  6. Decided - Refused6/2024/1747/OUTLINE

    Outline permission for the erection of two detached dwellings following the demolition of existing plot and garages with all matters reserved except for layout

    6 Peace Grove Welwyn AL6 0RS

    Received 10 Sept 2024
  7. Decided - Refused6/2025/1677/HOUSE

    Erection of a first floor side extension, replacement of existing gates and installation of new railing on the front boundary wall, front landscaping, new rear raised patio and covered barbeque area, replacement of doors/windows and roof tiles, chimneys removal and internal alterations

    45 Pine Grove Brookmans Park AL9 7BL

    Received 5 Aug 2025
  8. Decided - Granted6/2017/0186/ADV

    Installation of 5 fascia signs. 2x internally illuminated 3x non-illuminated

    Distribution Centre Bessemer Road Welwyn Garden City AL7 1HU

    Received 1 Feb 2017
  9. Decided - GrantedN6/2014/2640/LUP

    Certificate of lawfulness for the temporary change of use from A1 to A3 for a single continuous period of up to two years

    6a High Street, Welwyn, AL6 9EQ

    Received 4 Dec 2014
  10. Decided - Granted6/2022/1200/LAWP

    Certificate of lawfulness for the erection of an outhouse building to accommodate gym and golf simulator

    23A The Ridgeway Cuffley Potters Bar EN6 4BB

    Received 24 May 2022
  11. Decided - Granted6/2019/2753/EM

    Reduce 2 x Oak trees by 2m height & 2.5m in width

    41 Woodhall Lane Welwyn Garden City AL7 3TB

    Received 1 Nov 2019
  12. Decided - GrantedS6/2015/0176/LUP

    Certificate of Lawfullness for proposed garage conversion

    51 Homewood Avenue, Cuffley, Potters Bar, EN6 4QQ

    Received 29 Jan 2015
  13. Decided - Granted6/2022/1154/HOUSE

    Erection of a single storey rear extension

    39 Calder Avenue Brookmans Park Hatfield AL9 7AH

    Received 19 May 2022
  14. Decided - GrantedN6/2010/0211/S73B

    REMOVAL OF CONDITIONS 1 (CARAVANS USED FOR RESIDENTIAL PURPOSES ONLY), 2 (PERMISSION ONLY WHILST CHILDREN ARE IN FULL TIME EDUCATION) AND 3 (NO MORE THAN FOUR CARAVANS) FROM PLANNING PERMISSION N6/2001/0011/FP

    Four Oaks 1-4 Great North Road Welwyn AL6 0PL

    Received 4 Feb 2010
  15. Decided - GrantedS6/2013/0831/LUP

    Certificate of lawfulness for proposed driveway and vehicle crossover

    49 Briars Wood Hatfield AL10 8DH

    Received 12 Feb 2013
  16. Under Consultation6/2026/1422/TPO

    TPO 639 (2017) - Trim two Hornbeam Trees by 25 to 30%

    8 Bluebells Welwyn AL6 0XD

    Received 12 Aug 2026
  17. Decided - Granted6/2017/0952/HOUSE

    Erection of two storey side extension, part first floor side and rear extension as well as alterations to existing openings

    33 New Road Woolmer Green Knebworth SG3 6LA

    Received 8 May 2017
  18. Decided - Granted6/2024/0957/HOUSE

    Erection of a part single, part double storey rear extension, replacement bay window and replacement garage. Landscape works

    16 Guessens Road Welwyn Garden City AL8 6QR

    Received 22 May 2024
  19. Decided - Granted6/2020/2519/EMT

    Fell group of Lawson Cypress to ground level

    10 Ingles Welwyn Garden City AL8 7HL

    Received 30 Sept 2020
  20. Decided - Refused6/2018/1219/HOUSE

    Erection of a two storey side extension and front porch, construction of a front and rear dormer window and the installation of 2 side rooflights following demolition of existing garage

    58 Northaw Road East Cuffley Potters Bar EN6 4LZ

    Received 9 May 2018
  21. Decided - Granted6/2023/0329/COND

    Submission of details pursuant to condition 1 (Remediation Strategy & Verification Report) on planning permission 6/2019/1616/FULL

    Land behind 140 Ludwick Way Welwyn Garden City AL7 3PY

    Received 10 Feb 2023
  22. Decided - Withdrawn6/2016/0102/FULL

    Change of use from car park to car wash including erection of aluminium canopy

    61 Bridge Road East, Welwyn Garden City, AL7 1JR

    Received 21 Jan 2016
  23. Decided - Granted6/2022/2792/COND

    Submission of details pursuant to condition 3 (hard and soft landscaping), condition 7 (lighting for access road), condition 9 (parking management plan) and condition 10 (external street lighting) on planning permission 6/2019/1616/FULL

    Land behind 140 Ludwick Way Welwyn Garden City AL7 3PY

    Received 8 Dec 2022
  24. Decided - GrantedS6/2010/0238/FP

    ERECTION OF NEW BOUNDARY WALL, ACCESS GATE AND RAILINGS

    19 HILL RISE, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4ED

    Received 10 Feb 2010

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

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    Planning application documents: what to read first

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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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