PlanningTrack
Get started

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
39,536Searchable applications
344Recorded as pending
86%Approval rate · 33,083 approved or refused records
4,730Refused applications

28,353 approved · 4,730 refused · 2,167 withdrawn. Received dates in our records: 29 Apr 1948 to 21 Oct 2026. Most recent record check: 27 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 Counts reflect the last collected status; some records may be out of date.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 - WithdrawnW6/2015/0588/EM

    Construction of bin store for adjoining flats 1 - 14

    1 The Firs Welwyn Garden City AL8 7EA

    Received 18 Mar 2015
  2. Decided - GrantedN6/2007/0238/FP

    ERECTION OF PART SINGLE STOREY, PART TWO STOREY REAR EXTENSION

    288 Knella Road Welwyn Garden City AL7 3NR

    Received 14 Feb 2007
  3. Decided - Granted6/2018/2603/LAWP

    Certificate of lawfulness for installation of 2x side dormers, 1x rooflight and installation of window to existing rear elevation to facilitate loft conversion

    53 Lockley Crescent Hatfield AL10 0TL

    Received 10 Oct 2018
  4. Decided - GrantedW6/2004/1049/EM

    ERECTION OF A GARDEN SHED

    12 Handside Close, Welwyn Garden City, AL8 6SR

    Received 9 Jul 2004
  5. DecidedN6/2008/2135/TC

    CROWN LIFT TO 5 METRES AND CLEAR FROM OVERHEAD OBSTRUCTIONS.

    LAND ADJACENT TO, 63 VALLEY ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7DH

    Received 13 Nov 2008
  6. Decided - Refused6/2022/2251/HOUSE

    Erection of a single storey rear extension, replacement single storey side/front extension, garden office/study room and pergola, air conditioning/ashp units and solar panels to roofs

    21 St Josephs Green Welwyn Garden City AL7 4TT

    Received 28 Sept 2022
  7. Decided - GrantedS6/2008/0679/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    375 ST ALBANS ROAD WEST, HATFIELD, HERTFORDSHIRE, AL10 9RU

    Received 4 Apr 2008
  8. Decided - Granted6/2016/2121/PN8

    Prior approval for the erection of a single storey rear extension measuring 3.2m. in depth, 3m. in height and 3m. to the eaves

    58 Hillfield Hatfield AL10 0TU

    Received 11 Oct 2016
  9. Decided - Granted6/2020/2271/HOUSE

    Erection of single and two storey side extensions, part single/part two storey rear extension, front porch, first floor terrace, alterations to openings and creation of new vehicular access

    50 Wildhill Road Hatfield AL9 6EA

    Received 7 Sept 2020
  10. Decided - Granted6/2024/0226/EM

    Replace 2 sheds like for like

    17 Dellcott Close Welwyn Garden City AL8 7BB

    Received 5 Feb 2024
  11. Decided - Granted6/2019/0600/HOUSE

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

    109 Birchwood Avenue Hatfield AL10 0PT

    Received 13 Mar 2019
  12. Decided - Granted6/2021/1560/HOUSE

    Erection of first floor side extension and insertion of window to existing rear elevation at first floor level.

    55 Lowerfield Welwyn Garden City AL7 3JT

    Received 17 May 2021
  13. Decided - GrantedN6/2004/1443/AD

    NON ILLUMINATED LETTERING AND LOGOS TO FRONT ELEVATION

    Unit G 27 Bridge Park Bridge Road East Welwyn Garden City AL7 1JE

    Received 28 Sept 2004
  14. Decided - GrantedN6/2009/0163/FP

    ERECTION OF CHIMNEY AND FORMATION OF PITCHED ROOF AND ALTERATIONS TO EXISTING FRONT AND REAR DORMER WINDOWS

    23 Heathbrow Road Welwyn AL6 0QG

    Received 29 Jan 2009
  15. Decided - GrantedN6/2008/1206/FP

    RELOCATION OF BOILER ROOM AND MILK TANK. ALTERATIONS TO ROOF AND ELEVATIONS AND ERECTION OF PRE-FABRICATED MEETING ROOM(AMENDMENT TO APPLICATION N6/2007/353/FP)

    1 WATCHMEAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1LT

    Received 16 Jul 2008
  16. Decided6/2017/2654/TPO

    1 x Goat Willow to fell to ground level - Conservation Area

    29 Reddings Welwyn Garden City AL8 7LA

    Received 14 Nov 2017
  17. Decided - Granted6/2025/0126/EM

    Removal of hedge up to boundary line. Installation of concrete fence posts and 6ft wooden fence panels. In time this side of the garden will be relandscaped in keeping with the style of the remainder of the garden (see pictures), and may include an area or raised planters for growing some vegetables

    82 Attimore Road Welwyn Garden City AL8 6LP

    Received 27 Jan 2025
  18. Decided - Granted6/2021/0637/HOUSE

    Demolition of part existing derelict garage and erection of replacement single storey annex

    12 Meadow Green Welwyn Garden City AL8 6SS

    Received 26 Feb 2021
  19. Decided - Granted6/2023/1718/EM

    Erection of a single storey rear extension with flat roof and installation of window (retrospective)

    20 East Mead, Welwyn Garden City, AL7 4RR

    Received 15 Aug 2023
  20. Decided - Granted6/2024/1646/EMT

    1 x Oak to reduce back to previous reduction points, approx 2-3m all round.

    25 Barleycroft Road Welwyn Garden City AL8 6JX

    Received 28 Aug 2024
  21. Decided - Withdrawn6/2020/1985/TC

    Removal of Lime tree in front garden

    33 Holwell Road Welwyn Garden City AL7 3RE

    Received 13 Jul 2020
  22. Decided - Refused6/2017/1918/HOUSE

    Convert existing garage into habitable room space plus erection of wall and door on front elevation

    61 Aldykes Hatfield AL10 8ED

    Received 25 Aug 2017
  23. Decided6/2020/1512/TC

    Redduce 1 x Cherry tree by 1m height & width

    41 Barleycroft Road Welwyn Garden City AL8 6JX

    Received 26 Jun 2020
  24. Decided - GrantedW6/2005/1472/EM

    ERECTION OF A SINGLE STOREY REAR CONSERVATORY

    10 Hurstlings, Welwyn Garden City, AL7 3LX

    Received 29 Nov 2005

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

View all applications

Applications by postcode area

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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

  • 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.

    UK research
    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.

Check collection coverage

More planning authorities in England

Browse all authorities