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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
18,426Searchable applications
298Recorded as pending
86%Approval rate · 14,852 approved or refused records
2,052Refused applications

12,800 approved · 2,052 refused · 931 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2020/2985/LAWP

    Certificate of lawfulness for constructing dormer to rear of the property

    27 Wilshere Road Welwyn AL6 9PU

    Received 12 Nov 2020
  2. Decided - Granted6/2024/0795/HOUSE

    Erection of single storey rear/ side extension following the demolition of existing conservatory, alterations to fenestration, door and hard standing

    11 Handside Lane Welwyn Garden City AL8 6SE

    Received 29 Apr 2024
  3. Under Consideration6/2026/1444/FULL

    Installation of 1No. Street Hub Unit

    Pavement outside 43 Howardsgate Welwyn Garden City AL8 6AP

    Received 18 Aug 2026
  4. Decided - Granted6/2020/0749/HOUSE

    Erection of a ground floor rear extension, first floor side extension, front porch, erection of a rear dormer windows, insertion of 2no. front rooflights, render finish to all walls following the demolition of chimneys, conservatory and side garage/utility room.

    42 Tolmers Road Cuffley Potters Bar EN6 4JF

    Received 19 Mar 2020
  5. Decided - Granted6/2024/1239/EM

    Erection of single storey rear extensions, 1 x garage conversion with insertion of rooflights, loft conversion with front and rear facing dormers and insertion of rooflight, alterations to openings, erection of garden outbuilding and pergola, following demolition of existing garden outbuilding and installation of ASHP and 2 x air conditioning units to garage

    40 Sherrardspark Road Welwyn Garden City AL8 7LB

    Received 2 Jul 2024
  6. Decided - Granted6/2020/3083/PN8

    Prior approval for proposed larger single storey rear extension measuring 6m depth, 3.50m in heights and 3m in eaves

    33 Holme Road Hatfield AL10 9LH

    Received 18 Nov 2020
  7. Decided - Granted6/2020/0433/VAR

    Variation of condition 6 (plans) on planning permission 6/2018/1232/FULL

    17-19 Howardsgate Welwyn Garden City AL8 6AL

    Received 14 Feb 2020
  8. Decided - Granted6/2018/3111/FULL

    Installation of 2 electric vehicle charging points alongside 3 existing car parking spaces, with ancillary bollards, signage posts and power feeder pillar.

    The Bakehouse, Bessemer Road, Welwyn Garden City, AL7 1HH

    Received 5 Dec 2018
  9. Decided - Granted6/2023/2226/EM

    Erection of a single storey side/rear extension, part first floor rear extension with juliette balconies and alterations to openings to existing rear and side elevations.

    6 Ashley Close Welwyn Garden City AL8 7LH

    Received 1 Nov 2023
  10. Decided - Granted6/2022/1045/HOUSE

    Erection of single storey front extension to an existing outbuilding to form ancillary habitable accommodation

    13 Lockley Crescent Hatfield AL10 0TL

    Received 5 May 2022
  11. Decided - Granted6/2023/1709/HOUSE

    Proposed erection of single storey side/rear extensions and a new porch to dwellinghouse. Alterations to front elevation.

    22 The Avenue Welwyn AL6 0PP

    Received 14 Aug 2023
  12. Decided - Granted6/2023/2051/EM

    Conversion of a garage into an offfice/play room

    64 Springfields Welwyn Garden City AL8 6XN

    Received 6 Oct 2023
  13. Decided - Granted6/2020/1112/LAWP

    Conversion of roof from hip to gable and the installation of a rear dormer

    42 Lemsford Road Hatfield AL10 0DJ

    Received 18 May 2020
  14. Decided - Granted6/2019/0209/EM

    Erection of two storey rear extension with alterations to openings

    97 The Commons Welwyn Garden City AL7 4RZ

    Received 1 Feb 2019
  15. Decided - Granted6/2023/1468/HOUSE

    Erection of single storey front extension

    46 Birchwood Close Hatfield AL10 0PP

    Received 14 Jul 2023
  16. Decided - Granted6/2023/1799/EMT

    30% reduction of Elm tree back to previous reduction point

    8 The Orchard Welwyn Garden City AL8 7PL

    Received 29 Aug 2023
  17. Decided - Granted6/2022/0490/HOUSE

    Erection of front porch and single storey rear extension

    37 Walker Grove Hatfield AL10 9PL

    Received 1 Mar 2022
  18. Decided - Granted6/2023/1261/HOUSE

    Extension to existing dormer

    55 The Ridgeway Cuffley Potters Bar EN6 4BD

    Received 15 Jun 2023
  19. Decided - Withdrawn6/2025/0068/COND

    Seeking confirmation that all conditions on planning permissions N6/2011/0359/OP and 6/2015/1901/RM have been discharged

    Queen Elizabeth II Hospital Howlands Welwyn Garden City AL7 4HQ

    Received 6 Jan 2025
  20. Decided - Granted6/2025/1459/HOUSE

    Erection of a part single and part two storey rear extension, first floor side extension, front porch and installation of a rooflight to the front roof slope.

    30 Tolmers Road Cuffley Potters Bar EN6 4JF

    Received 8 Jul 2025
  21. Decided - Granted6/2018/2727/HOUSE

    Erection of a single storey side/rear extension with partial garage conversion.

    13 Oak Piece Welwyn AL6 0XE

    Received 23 Oct 2018
  22. Decided - Granted6/2026/0857/HOUSE

    Installation of air source heat pump to front (south) facing elevation of dwelling

    15 Victoria Close Welwyn Garden City AL7 4EL

    Received 15 May 2026
  23. Decided - Granted6/2019/1532/EM

    Erection of a single storey side and rear extension

    2 Great Break Welwyn Garden City AL7 3EZ

    Received 24 Jun 2019
  24. Decided - Granted6/2023/2169/OUTLINE

    Outline permission for the erection of an end of terrace two storey dwelling

    32 Elm Drive Hatfield AL10 8NU

    Received 24 Oct 2023

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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    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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