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
40,205Searchable applications
309Recorded as pending
86%Approval rate · 33,717 approved or refused records
4,806Refused applications

28,911 approved · 4,806 refused · 2,210 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 5 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2016/2581/HOUSE

    Erection of part two storey and part single storey side extension with conversion of loft and installation of rear facing loft dormer.

    11 Selwyn Crescent Hatfield AL10 9NL

    Received 5 Dec 2016
  2. Decided - GrantedN6/2006/0158/FP

    SINGLE STOREY SIDE EXTENSION

    3 Spindleberry Close Oaklands Welwyn AL6 0SJ

    Received 7 Feb 2006
  3. Decided - GrantedS6/2009/2428/DS

    DISCHARGE OF CONDITIONS 2 (MATERIALS), 5c (TREE PROTECTION)AND 25 (SITE INVESTIGATION) FROM PLANNING PERMISSION S6/2007/0925/MA

    HAZEL GROVE PRIMARY SCHOOL SITE, HATFIELD, HERTFORDSHIRE, AL10 9DX

    Received 2 Nov 2009
  4. Decided - GrantedS6/2014/2028/AD

    Installation of one fascia sign

    GE Healthcare, 71 Great North Road, Hatfield, AL9 5DB

    Received 12 Sept 2014
  5. Decided - Granted6/2025/1551/COND

    Submission of details pursuant to Condition 1 (AC Units), Condition 2 (Timber Frame) and Condition 3 (Noise) on planning permission 6/2024/2354/FULL

    Barn Theatre Barn Close Welwyn Garden City AL8 6ST

    Received 18 Jul 2025
  6. Decided - RefusedS6/2007/1163/FP

    ERECTION OF ONE DETACHED BUNGALOW

    Land Rear of, 44 & 46 Hill Rise, POTTERS BAR, Hertfordshire, EN6 4EJ

    Received 3 Aug 2007
  7. Decided - Granted6/2018/2369/PN8

    Prior approval for the erection of a single storey rear extension measuring 4m in depth, 3.66m in height, 2.5m to the eaves

    12 Stuart Road Welwyn AL6 9JN

    Received 14 Sept 2018
  8. Decided - Granted6/2024/0573/LAWP

    Certificate of lawfulness for the installation of 14 Solar PV panels to south facing rear roof slope

    6 Hawthorns Welwyn Garden City AL8 7SE

    Received 25 Mar 2024
  9. Decided - GrantedN6/2013/1966/TC

    Removal of dangerous limb from Hornbeam tree located in rear garden

    13 Sherrardspark Road, Welwyn Garden City, AL8 7JW

    Received 17 Sept 2013
  10. Decided - RefusedW6/2010/0158/EM

    CONVERSION OF LOFT WITH ERECTION OF SIDE AND REAR DORMERS AND NEW ROOF TO INCLUDE INCREASE IN HEIGHT

    48 ATTIMORE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6LP

    Received 29 Jan 2010
  11. Decided6/2018/2173/TPO

    Reduce 1 x Silver Birch tree by 30% -Conservation area

    144 Howlands Welwyn Garden City AL7 4RG

    Received 21 Aug 2018
  12. Decided - Granted6/2018/1823/HOUSE

    erection of a single storey rear/side extension and erection of a single storey front extension. Construction of a new roof to create an additional floor including increase in the ridge height and installation of rooflights. Alterations to windows and doors of the existing property. Demolition of three front bay windows and single storey side element

    3 Broom Hill Welwyn AL6 0SF

    Received 11 Jul 2018
  13. Decided - Granted6/2020/1964/EMT

    Reduce 1 x Cherry by 20-30% (1-1.5m in height) and remove deadwood

    44 Longcroft Lane Welwyn Garden City AL8 6EF

    Received 6 Aug 2020
  14. Decided - Split6/2020/2108/COND

    Submission of details pursuant to conditions 1 (Written Scheme of Investigation), 2 (external materials), 3 (windows, doors, glazed timber screens, eaves, verges and junctions), 4 (method statement) and 7 (fixed doors) on planning permission 6/2020/0081/HOUSE

    3 Mill Green Cottages Mill Green Bush Hall Lane Hatfield AL9 5PB

    Received 21 Aug 2020
  15. Decided - Granted6/2026/0668/EM

    Extension of hardstanding driveway to accommodate two cars instead of just one, leaving over 50% of property frontage as soft landscaping

    65 Handside Lane Welwyn Garden City AL8 6SH

    Received 15 Apr 2026
  16. Decided - Granted6/2017/2632/EM

    Installation of hardstanding and access gate and replacement timber fence.

    57 Thistle Grove Welwyn Garden City AL7 4AF

    Received 10 Nov 2017
  17. Decided - Granted6/2026/0558/HOUSE

    Erection of a part single-storey, part two storey side extension and a single storey rear extension, including associated internal reconfiguration, removal of chimney, and alterations to fenestration following demolition of outbuilding

    96 Birchwood Avenue Hatfield AL10 0PS

    Received 26 Mar 2026
  18. Appeal Decided - Allowed6/2024/1407/HOUSE

    Extension to existing garage

    1 Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ

    Received 24 Jul 2024
  19. Decided - Granted6/2024/1967/LAWP

    Certificate of lawfulness for a front porch

    54 Lowerfield Welwyn Garden City AL7 3JT

    Received 14 Oct 2024
  20. Decided6/2020/2582/TC

    Fell 1 x Willow tree covered by conservation area

    24 High Oaks Road Welwyn Garden City AL8 7BH

    Received 6 Oct 2020
  21. Decided - RefusedN6/2006/0057/FP

    ERECTION OF TWO STOREY SIDE EXTENSION

    30 Attimore Road Welwyn Garden City AL8 6LP

    Received 17 Jan 2006
  22. Decided - RefusedS6/2013/0759/FP

    Erection of single storey front porch and internal alterations

    Danewood, Woodside Lane, HATFIELD, AL9 6DE

    Received 17 Apr 2013
  23. Decided - GrantedN6/2004/1125/FP

    FORMATION OF VEHICLE CROSSOVERS FOR PARKING AREAS

    79-141 HERONSWOOD ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE

    Received 21 Jul 2004
  24. Decided - GrantedS6/2013/0364/NM

    Non material amendment following approval of application S6/2011/1184/FP - Removal of Mono-pitch roof at first floor level to create flush rear facade

    32 Huggins Lane, Welham Green, HATFIELD, AL9 7LE

    Received 21 Feb 2013

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