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
40,297Searchable applications
283Recorded as pending
86%Approval rate · 33,821 approved or refused records
4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 10 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2008/0965/FP

    ERECTION OF REAR CONSERVATORY AND REAR BOUNDARY WALLS

    14 BROCKSWOOD LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7BG

    Received 24 Jun 2008
  2. Decided6/2022/2762/TC

    Fell 1 x Pine tree to ground level & grind stump Tree roots are causing problems to drainage system

    157 Handside Lane Welwyn Garden City AL8 6TA

    Received 6 Dec 2022
  3. Decided - RefusedN6/2014/0496/FP

    Erection of two storey and single storey side and rear extension

    6 Homestead Lane, Welwyn Garden City, AL7 4LU

    Received 10 Mar 2014
  4. Decided - Refused6/2015/2405/TPO

    Removal of two Sweet Chestnut trees covered by TPO 175.

    12 Briary Wood Lane Welwyn AL6 0TF

    Received 2 Dec 2015
  5. Appeal Decided - Split6/2019/1130/HOUSE

    Retention of replacement roof and first floor front elevation wall and retention of first floor side extension, side elevation window and rear dormer

    170 Crawford Road Hatfield AL10 0PA

    Received 9 May 2019
  6. Decided - GrantedS6/2015/1119/OR

    Prior approval for the change of use from Class B1 (Office) to Class C3 (Dwellinghouses)

    Everest Ltd, Everest House, Sopers Road, Cuffley, Potters Bar, EN6 4SG

    Received 26 May 2015
  7. Decided - Granted6/2023/2559/FULL

    Erection of 2 detached dwellings to the front accessed via a new access off of Osborne Road and 1 detached dwelling to the rear accessed via a new access off of Osborne Gardens, following demolition of existing dwelling and garage

    44 Osborne Road Little Heath Potters Bar EN6 1SF

    Received 21 Dec 2023
  8. Decided - Granted6/2024/1086/ADV

    Installation of 1 x illuminated fascia sign, 1 x illuminated projecting sign

    Unit 32 The Howard Centre Howardsgate Welwyn Garden City AL8 6HA

    Received 12 Jun 2024
  9. Decided - Granted6/2022/0825/LB

    Installation of resin-mounted tactile paving to each platform edge

    15-17 Welwyn North Station Harmer Green Lane Digswell Welwyn Hertfordshire AL6 0AS

    Received 5 Apr 2022
  10. Decided - Granted6/2021/2959/EMT

    Re pollard 2 x poplar trees back to previous growth points

    52 Attimore Road, Welwyn Garden City, AL8 6LP

    Received 14 Oct 2021
  11. Decided - Refused6/2021/1931/HOUSE

    Erection of rear extension and glazed link extension. Conversion of existing garage into habitable accommodation and internal ground floor alterations

    10 London Road Woolmer Green SG3 6JP

    Received 25 Jun 2021
  12. Decided - Granted6/2021/3171/LAWP

    Certificate of lawfulness for the erection of rear and side dormer windows, front rooflights, removal of chimney stack to facilitate a loft conversion. Outbuilding in rear garden

    8 Welham Close Welham Green Hatfield AL9 7PP

    Received 5 Nov 2021
  13. Decided - Granted6/2025/1813/COND

    Submission of details pursuant to condition 4 (External Materials), condition 5 (Hard and Soft Landscaping), condition 9 (Energy efficiency) and condition 10 (External Lighting) on planning permission 6/2025/1302/VAR

    Land adjacent to Bell Lane Bell Bar AL9 7AY

    Received 27 Aug 2025
  14. Decided - GrantedN6/2007/0942/FP

    ERECTION OF A FIRST FLOOR SIDE EXTENSION

    359 Knightsfield Welwyn Garden City AL8 7NB

    Received 25 Jun 2007
  15. Decided - GrantedS6/2007/1274/FP

    INSTALLATION OF AN AUTOMATED TELLER MACHINE (RETROSPECTIVE CONSENT)

    10-11 The Parade St Albans Road East Hatfield AL10 0ET

    Received 23 Aug 2007
  16. Decided - Granted6/2018/1549/HOUSE

    Conversion of garage to habitable space and extension of front porch

    41 Moors Walk Welwyn Garden City AL7 2AX

    Received 11 Jun 2018
  17. Decided - Granted6/2019/0271/FULL

    Erection of part single storey, part two storey front extension and two single storey rear extensions to facilitate conversion of existing 4-bed House in Multiple Occupation (C4) into 2 x 1-bed flats and 1 x 2 bed flat

    7 Strawmead Hatfield AL10 0JG

    Received 6 Feb 2019
  18. Decided - Granted6/2019/1043/FULL

    Change of use to D1 Class

    Unit 49 and Store 22, The Howard Centre, Howardsgate

    Received 30 Apr 2019
  19. Decided - GrantedS6/2014/2370/AD

    Replacement of existing disabled, parent & child parking signage

    Tesco Extra, Oldings Corner, Mount Pleasant Lane, Hatfield, AL9 5BY

    Received 28 Oct 2014
  20. Decided6/2019/1599/TC

    Reduce 1 x Oak by approximately 2m, covered by conservation area

    9 Dellcott Close Welwyn Garden City AL8 7BB

    Received 25 Jun 2019
  21. Decided - Granted6/2021/1758/LAWP

    Certificate of lawfulness for the erection of an outbuilding

    4 Georges Wood Road Hatfield AL9 7BZ

    Received 4 Jun 2021
  22. Decided - Granted6/2025/0635/HOUSE

    Erection of part single- part double-storey side and rear extension and two storey front porch extension. Raising of existing front roof slope, ridge to remain as existing and alterations to fenestration with render to existing shed. Following the demolition of existing double garage.

    4 Hangmans Lane Welwyn AL6 0TJ

    Received 2 Apr 2025
  23. Decided - GrantedS6/2014/0980/LB

    Conversion of garage to habitable accommodation, including removing garage door, reducing the opening and installing a window to match existing

    The Lodge, 2 Northaw Place, Coopers Lane, Northaw, Potters Bar, EN6 4NQ

    Received 8 May 2014
  24. Decided - GrantedS6/2004/0180/FP

    ERECTION OF TWO EXTERNAL AIR CONDITIONING UNITS

    Oshwal Centre Coopers Lane Road Northaw Potters Bar EN6 4DG

    Received 5 Feb 2004

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