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England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
39,849Searchable applications
298Recorded as pending
86%Approval rate · 33,411 approved or refused records
4,778Refused applications

28,633 approved · 4,778 refused · 2,184 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 28 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/2243/HOUSE

    Erection of single storey side and two storey rear extension following demolition of existing garage

    20 New Road Digswell Welwyn AL6 0AG

    Received 31 Aug 2018
  2. Decided - Granted6/2022/0375/HOUSE

    Erection of first floor rear extension

    16 Caponfield Welwyn Garden City Hertfordshire AL7 4AP

    Received 17 Feb 2022
  3. Decided - RefusedS6/2008/0444/FP

    LOFT CONVERSION INCORPORATING FRONT AND SIDE DORMERS PLUS REAR ROOF EXTENSION

    27 NORTHAW ROAD EAST, CUFFLEY, HERTFORDSHIRE, EN6 4LU

    Received 12 Mar 2008
  4. Decided - Granted6/2019/0478/FULL

    Change of use of front amenity land to residential, to facilitate expansion of existing driveway by 1m and installation of glass panels to existing flat roof

    1 Brockett Close Welwyn Garden City AL8 7BN

    Received 4 Mar 2019
  5. Decided - Refused6/2025/2063/PN8

    Prior approval for the erection of a single storey rear extension measuring 5.85m in depth, 3.85m in height and 2.60m to the eaves

    29 Brookside Crescent Cuffley Potters Bar EN6 4QW

    Received 26 Sept 2025
  6. Decided - Granted6/2023/0861/LAWP

    Certificate of lawfulness for erection of rear conservatory

    14 Duncan Close Welwyn Garden City AL7 3XP

    Received 24 Apr 2023
  7. Decided - Granted6/2022/1580/LB

    Maintenance to the brickwork and re-pointing of the north and south elevations of the property

    11A High Street Welwyn AL6 9EE

    Received 5 Jul 2022
  8. Decided - GrantedN6/2014/2050/LUP

    Certificate of lawfulness for a single storey rear extension

    17A Mill Green Road, Welwyn Garden City, AL7 3UX

    Received 17 Sept 2014
  9. Decided - Granted6/2019/1032/EM

    Installation of 3 x rear roof lights to facilitate loft conversion and insertion of roof lantern into existing flat roof

    10 Parkfields Welwyn Garden City AL8 6ED

    Received 29 Apr 2019
  10. Decided6/2026/0344/TC

    3 x Leyland Cypress to reduce by around 6ft in height

    110 Mill Green Road Welwyn Garden City AL7 3XE

    Received 24 Feb 2026
  11. Decided - Split6/2020/2836/COND

    Submission of details pursuant to conditions 1 (materials) and 2 (means of enclosure and boundary treatment) on planning permission 6/2019/1214/VAR

    The Spinney High Road Essendon Hatfield AL9 6HP

    Received 29 Oct 2020
  12. Appeal Decided - Allowed6/2016/0455/LB

    Removal of photographic print of George, Prince Regent of Wales

    Brocket Hall, Brocket Park, Marford Road, Lemsford, Welwyn Garden City, AL8 7XG

    Received 17 Mar 2016
  13. Decided - Granted6/2017/0516/EIA

    Request for a screening opinion at 20 Black Fan Road.

    20 Black Fan Road Welwyn Garden City AL7 1QA

    Received 10 Mar 2017
  14. Decided - Granted6/2026/0878/ADV

    Retention of three illuminated fascia signs

    Ymca 90 Peartree Lane Welwyn Garden City AL7 3UL

    Received 18 May 2026
  15. Decided - Granted6/2025/2360/HOUSE

    Erection of a part single/double storey rear extension, double storey side extension and front porch

    3 Ellenbrook Lane Hatfield AL10 9RW

    Received 10 Nov 2025
  16. Decided - RefusedS6/2008/0859/FP

    ERECTION OF SINGLE STOREY SIDE EXTENSION, AND RAISING OF ROOF TO CREATE FIRST FLOOR ACCOMMODATION

    18 CHURCH LANE, NORTHAW, POTTERS BAR, HERTFORDSHIRE, EN6 4NX

    Received 30 May 2008
  17. Decided - Granted6/2023/1032/COND

    Submission of details pursuant to conditions 1 (hard and soft landscaping), 2 (cycle parking) and 3 (refuse and recycling bins) on planning permission 6/2022/2508/FULL

    14 Tolmers Road Cuffley Potters Bar EN6 4LA

    Received 16 May 2023
  18. Decided - Granted6/2018/2069/EM

    Erection of single storey rear conservatory

    37 Sweet Briar Welwyn Garden City AL7 3DU

    Received 7 Aug 2018
  19. Decided - RefusedW6/2008/0500/EM

    ERECTION OF TWO STOREY REAR AND SIDE AND SINGLE STOREY REAR AND SIDE EXTENSIONS

    6 WALNUT COURT, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4EZ

    Received 6 Mar 2008
  20. Decided - Granted6/2023/2282/HOUSE

    Erection of a single storey side/rear extension with canopy to rear with replacement of window with door to side elevation

    17 Station Road Digswell Welwyn AL6 0DU

    Received 13 Nov 2023
  21. Decided - Refused6/2016/0617/HOUSE

    Erection of double storey extension and porch

    6 Dudley Hill Close Welwyn AL6 0QQ

    Received 6 Apr 2016
  22. Decided - GrantedW6/2013/1827/EM

    Conversion of garage

    22 The Commons, Welwyn Garden City, AL7 4RP

    Received 23 Aug 2013
  23. Decided - Granted6/2023/1668/EM

    Replacement of front door, erection of potting shed and greenhouse in rear garden.

    24 Longcroft Lane, Welwyn Garden City, AL8 6EA

    Received 10 Aug 2023
  24. Decided - GrantedN6/2009/2188/AD

    INSTALLATION OF INTERNALLY ILLUMINATED FASCIA

    LLOYDS PHARMACY, 9 SHOPLANDS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7RH

    Received 5 Oct 2009

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

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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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    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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