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
40,295Searchable applications
322Recorded as pending
86%Approval rate · 33,786 approved or refused records
4,816Refused applications

28,970 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 Nov 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - Granted6/2023/1398/EM

    Replacement sign panel to front of building

    129-131 Mill Green Road, Welwyn Garden City, AL7 3XB

    Received 5 Jul 2023
  2. Decided6/2022/1105/EIA

    Request for screening opinion

    Campus East Car Park College Way

    Received 12 May 2022
  3. Decided - Granted6/2023/1255/TPO

    Fell dangerous beech tree within TPO1156 G6 following large tree limb failing

    23 Warren Way Digswell Welwyn AL6 0DQ

    Received 14 Jun 2023
  4. Decided - GrantedN6/2006/0128/FP

    SINGLE STOREY REAR EXTENSION (REVISION TO N6/2000/619/FP)

    15 Meadow Green Welwyn Garden City AL8 6SS

    Received 31 Jan 2006
  5. Decided - Granted6/2018/0474/HOUSE

    Erection of single storey rear extension and single storey front extension

    112 Brooksfield Welwyn Garden City AL7 2AN

    Received 16 Feb 2018
  6. Decided - Granted6/2018/3148/HOUSE

    Erection of two storey side, single storey front and rear extension and increase in ridge height of roof with installation of two rear dormers to facilitate a loft conversion

    27 Pine Grove Brookmans Park Hatfield AL9 7BP

    Received 11 Dec 2018
  7. Decided - GrantedS6/2015/0982/S73B

    Variation of condition 2 (approved plans) on planning permission S6/2014/2512/FP

    White Lodge Farm Bulls Lane Hatfield

    Received 8 May 2015
  8. Decided - Refused6/2019/2392/HOUSE

    Erection of a two storey front, part single, part two storey rear, and single storey side extension following demolition of outbuilding

    6 Burnside Close Hatfield AL10 0QU

    Received 27 Sept 2019
  9. Decided - Refused6/2025/1648/COND

    Submission of details pursuant to condition 1 (Construction Management Plan) on planning permission 6/2024/2237/VAR

    Land adjacent to The Warren 8 Carbone Hill Northaw Potters Bar EN6 4PL

    Received 31 Jul 2025
  10. Decided - RefusedS6/2009/2619/LU

    CERTIFICATE OF LAWFULNESS FOR A PROPOSED FIRST FLOOR EXTENSION AND GARAGE CONVERSION

    21 Cedar Road Hatfield AL10 8NZ

    Received 2 Dec 2009
  11. Decided - RefusedW6/2007/1093/EM

    SINGLE STOREY REAR EXTENSION

    67 Golden Dell, Welwyn Garden City, AL7 4EE

    Received 23 Jul 2007
  12. Decided - Granted6/2021/0321/COND

    Submission of details pursuant to conditions 10 (external lighting), 11 (car parking) and 13 (pedestrian access) on planning permission (6/2018/2387/MAJ)

    Studio Four 37 Broadwater Road Welwyn Garden City AL7 3AX

    Received 2 Feb 2021
  13. Decided - Refused6/2023/2481/HOUSE

    Erection of part single, part two-storey rear and side extension, part garage conversion and alterations to existing external openings following demolition of existing conservatory

    22 Elmwood Welwyn Garden City AL8 6LE

    Received 12 Dec 2023
  14. Decided - GrantedS6/2004/0760/FP

    LOFT CONVERSION AND ALTERATIONS TO ROOF WITH REAR DORMER WINDOW.

    26 The Meadway Cuffley Potters Bar EN6 4ES

    Received 20 May 2004
  15. Decided - Granted6/2022/1825/EMT

    1 x Silver birch (right side) to reduce by 2.5m in height to balance crown. Reduce width by around 1m. 1 x Silver birch (left side) to reduce by 2.5m height and 2m in width Both trees are to be reduced to maintain size and prevent shading into neighbouring properties

    73 Moorlands Welwyn Garden City AL7 4QJ

    Received 4 Aug 2022
  16. Decided - Granted6/2022/1156/HOUSE

    Internal reconfiguration of ground floor; over-cladding and re-roofing of front porch and rear existing extension. Associated external landscaping, including pergolas. Erection of separate garden room.

    4 Station Road Digswell Welwyn AL6 0DG

    Received 19 May 2022
  17. Decided - RefusedN6/2010/0050/FP

    ERECTION OF FIRST FLOOR SIDE EXTENSION

    38 BEEHIVE LANE, WELWYN GARDEN CITY, HERTS, AL7 4BP

    Received 12 Jan 2010
  18. Decided - Granted6/2022/1334/EM

    Replacement of windows like for like

    93 Mill Green Road Welwyn Garden City AL7 3XA

    Received 9 Jun 2022
  19. Decided - RefusedW6/2004/0062/EM

    ALTERATIONS TO EXISTING DOUBLE GARAGE AND RAISING OF ROOF TO FORM GRANNY ANNEXE

    8 Holwell Hyde, Welwyn Garden City, AL7 3DJ

    Received 16 Jan 2004
  20. Decided - Granted6/2018/2382/PN6

    Prior approval for the erection of a forestry building

    Harmergreen Wood Welwyn AL6 0QX

    Received 17 Sept 2018
  21. Decided - GrantedS6/2005/1588/FP

    ERECTION OF TWO STOREY REAR EXTENSION AND LOFT CONVERSION

    45 Broad Acres Hatfield AL10 9LE

    Received 23 Dec 2005
  22. Decided - Granted6/2016/2002/HOUSE

    Erection of a two storey rear extension

    6 High Oaks Road, Welwyn Garden City, AL8 7BH

    Received 28 Sept 2016
  23. Decided - Withdrawn6/2021/2532/TPO

    Fell 1 x Hornbeam

    22 Bracken Lane Welwyn AL6 0RB

    Received 31 Aug 2021
  24. Decided - RefusedS6/2009/2226/FP

    ERECTION OF FIRST FLOOR FRONT EXTENSION

    7 Ellenbrook Lane Hatfield AL10 9RW

    Received 19 Oct 2009

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

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.

  • 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.

  • 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.

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