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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
32,364Searchable applications
303Recorded as pending
87%Approval rate · 27,071 approved or refused records
3,541Refused applications

23,530 approved · 3,541 refused · 1,700 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/0752/COND

    Submission of details pursuant to condition 1(Materials) , 2 (Detailed Drawing) on planning permission 6/2018/2701/HOUSE

    Holly Frindle Cottage Coopers Lane Northaw Potters Bar EN6 4NE

    Received 29 Mar 2019
  2. Decided - Withdrawn6/2016/1590/PN3

    Prior approval for the erection of agricultural building for storage measuring 12.192m. in length, 6m. to the eaves, 18.288m. in breadth and 8.5m. height to the ridge

    Cromer Hyde Farm, Lemsford, Welwyn Garden City, AL8 7XD

    Received 4 Aug 2016
  3. DecidedN6/2014/2492/TN

    Replacement DSLAM cabinet and One PCP Cabinet

    S/O, 20 Guessens Road, Welwyn Garden City, AL8 6RA

    Received 13 Nov 2014
  4. Decided - GrantedN6/2014/0065/FP

    Erection of rear conservatory

    15 Node Way Gardens Welwyn AL6 9FD

    Received 17 Jan 2014
  5. Decided - Granted6/2026/0844/HOUSE

    Erection of single storey front, side and rear extensions and extension to the existing garage

    367 St Albans Road West Hatfield AL10 9RU

    Received 13 May 2026
  6. Decided - Granted6/2026/0659/VAR

    Variation of condition 3 (Arboricultural Method Statement and the Tree Protection Plan) and condition 18 (approved plans) on planning permission 6/2023/2115/FULL

    38 The Ridgeway Cuffley Potters Bar EN6 4AX

    Received 14 Apr 2026
  7. Decided - Granted6/2026/0799/ADV

    Installation of one internally illuminated fascia sign

    Premier Inn Lemsford Road Hatfield AL10 0DA

    Received 6 May 2026
  8. Decided - Granted6/2018/1701/EM

    Erection of a single storey rear extension

    2 Ryelands Welwyn Garden City AL7 4LQ

    Received 26 Jun 2018
  9. Decided - Withdrawn6/2024/2263/FULL

    Subdivision of existing plot and conversion of outbuilding to form new residential dwelling

    36 Holme Road Hatfield AL10 9LF

    Received 25 Nov 2024
  10. Decided - Granted6/2020/1366/HOUSE

    Erection of a single storey front and rear extension and installation of window to facilitate garage conversion into habitable space

    76 Forresters Drive Welwyn Garden City AL7 2HZ

    Received 15 Jun 2020
  11. Decided - Granted6/2018/0593/EM

    Erection of rear conservatory

    2 Brockett Close Welwyn Garden City AL8 7BN

    Received 2 Mar 2018
  12. Decided - Withdrawn6/2018/2156/HOUSE

    Installation of 1 x front window, erection of single storey rear extension and roof alterations to existing rear extension following demolition of existing conservatory and wall vent

    6 Whitethorn Welwyn Garden City AL7 3EX

    Received 20 Aug 2018
  13. Decided - Granted6/2025/2140/HOUSE

    Erection of a single storey rear extension

    99 Peplins Way Brookmans Park AL9 7UT

    Received 8 Oct 2025
  14. Decided - Granted6/2025/1216/EM

    Single storey rear extension, extension and conversion of garage to an annexe

    11A Guessens Road Welwyn Garden City AL8 6QW

    Received 17 Jun 2025
  15. Decided - Refused6/2016/1785/COND

    Approval of details reserved by condition 27 (Energy) on planning permission N6/2012/1778/OP

    Former The Frythe 5 Digswell Hill Welwyn AL6 9AR

    Received 31 Aug 2016
  16. Decided - Refused6/2016/0123/LB

    Replacement of existing windows with 6 identical double-glazed timber windows at the front and side of the property

    10 Park Street, Hatfield, AL9 5AX

    Received 22 Jan 2016
  17. Decided - Granted6/2024/1918/HOUSE

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

    14 The Gardens Brookmans Park AL9 7UL

    Received 8 Oct 2024
  18. Decided - Granted6/2023/1833/FULL

    Installation of air condenser unit to first floor flat roof area

    Westland Lodge Westland Drive Brookmans Park AL9 7EU

    Received 4 Sept 2023
  19. Decided - Granted6/2022/2579/LAWP

    Certificate of lawfulness for a hip to gable and rear dormer loft conversion

    20 Oaklands Avenue Brookmans Park AL9 7UJ

    Received 11 Nov 2022
  20. Decided - GrantedS6/2015/0262/FP

    Erection of canopy structure and use part of the car park for car washing business

    Sopers Road Car Park Sopers Road Cuffley

    Received 10 Feb 2015
  21. Decided - GrantedN6/2013/0283/NM

    Non material amendment following approval of planning application N6/2010/2111/FP - Removing side elevation window, replacing garage door with window and infill porch canopy

    16 Hunsdon Welwyn Garden City AL7 2PN

    Received 11 Feb 2013
  22. Decided - GrantedS6/2015/0612/FP

    Creation of a single storey rear extension, including removal and demolition of existing conservatory

    18 Birch Drive Hatfield AL10 8NX

    Received 20 Mar 2015
  23. Decided - Granted6/2018/0569/HOUSE

    Erection of a two storey rear, first floor side and single storey side extension, alterations to openings, demolition of chimney stack and the creation of a front porch

    51 Moffats Lane Brookmans Park Hatfield AL9 7RT

    Received 27 Feb 2018
  24. Appeal Decided - Allowed6/2021/0773/FULL

    The erection of a one storey roof extension to create 6 no. flats including 3 x 1 bed and 3 x 2 bed flats, with associated parking and cycle and refuse provision

    1 Maynard Place Cuffley Potters Bar EN6 4JA

    Received 10 Mar 2021

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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