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28,970 approved · 4,816 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2004/1374/FP

    ERECTION OF PART TWO STOREY AND PART SINGLE STOREY REAR EXTENSION AND FIRST FLOOR SIDE EXTENSION.

    18 Gooseacre Welwyn Garden City AL7 4NB

    Received 13 Sept 2004
  2. Decided - Granted6/2018/2617/HOUSE

    Erection of a single storey rear and first floor front and side extension

    28 Heyford Way Hatfield AL10 0AT

    Received 12 Oct 2018
  3. Decided6/2022/2475/TC

    Figure 3 Fir tree x1 - reduce by approx 6-8 feet over 6 Fearnley Road

    8 Fearnley Road Welwyn Garden City AL8 6HW

    Received 28 Oct 2022
  4. Decided - Refused6/2025/0088/HOUSE

    Erection of two storey side/rear extension, and rear garden shed and the formation of a vehicular access to the highway and hard paving to part of the garden

    10 Lancaster Way Welwyn AL6 9LD

    Received 20 Jan 2025
  5. Decided - Granted6/2016/0465/LAWP

    Certificate of lawfulness for the proposed change of use from dwellinghouse (C3) to house of multiple occupation (C4)

    27 Birds Close, Welwyn Garden City, AL7 4AR

    Received 21 Mar 2016
  6. Decided - Granted6/2021/3314/FULL

    Conversion of 5 x flats into 1 x dwelling and associated external works to driveway

    11 Brookmans Avenue Hatfield AL9 7QH

    Received 24 Nov 2021
  7. Decided - GrantedS6/2014/0029/FP

    Erection of outbuilding and shed and extension of patio following the demolition of existing garage and shed

    85 The Ridgeway, Cuffley, Potters Bar, EN6 4BG

    Received 16 Jan 2014
  8. Decided - RefusedS6/2004/1273/FP

    PROPOSED ACCESS ROAD, OPTION B

    LAND AT, ROEHYDE A414, HATFIELD, HERTFORDSHIRE, AL109PJ

    Received 20 Aug 2004
  9. Decided - Granted6/2020/3327/LAWP

    Certificate of lawfulness for erection of outbuilding

    37 The Ridgeway Cuffley Potters Bar EN6 4BB

    Received 11 Dec 2020
  10. Decided - WithdrawnS6/2014/0811/FP

    Erection of single storey front and rear extensions, loft conversion with hip to gabled roof and erection of two rear dormer windows

    2 Sutherland Avenue, Cuffley, Potters Bar, EN6 4EQ

    Received 14 Apr 2014
  11. Decided - GrantedS6/2007/1730/FP

    ERECTION OF PART SINGLE PART TWO STOREY REAR EXTENSION

    79 TOLMERS ROAD, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4JJ

    Received 16 Nov 2007
  12. Decided - GrantedN6/2005/1304/FP

    SINGLE STOREY REAR EXTENSION

    6 Mannicotts Welwyn Garden City AL8 7BW

    Received 14 Oct 2005
  13. Decided - Granted6/2026/0850/TPO

    TG1 Tree Group overhanging road and footpath - Lift crowns overhanging road and foot path to 5 metres in height to allow clearance from road users and pedestrians T2 Cherry - Dead - Fell to ground level T3 Birch - Heavy lean and unstable - Fell to ground level

    4 Mornington Digswell Welwyn AL6 0AJ

    Received 14 May 2026
  14. Decided6/2020/1879/TC

    Reduction of 1 x Beech by 80% to reduce to below existing hedge level to allow it to form part of hedge - in a conservation area

    41 Barleycroft Road Welwyn Garden City AL8 6JX

    Received 29 Jul 2020
  15. Decided - Granted6/2023/1704/LAWP

    Certificate of lawfulness for the siting of a mobile home for use ancillary to the main dwelling

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

    Received 14 Aug 2023
  16. Decided - RefusedW6/2004/1554/EM

    REPLACEMENT OF FRONT GARDEN HEDGE WITH 0.9 METRE WOODEN PICKET FENCE

    222 Handside Lane, Welwyn Garden City, AL8 6TD

    Received 18 Oct 2004
  17. Decided - Granted6/2022/2532/HOUSE

    Erection of single storey front extension

    Railway Cottage 1-2 Marshmoor Lane Welham Green Hatfield AL9 7HT

    Received 4 Nov 2022
  18. Decided - Withdrawn6/2024/2191/FULL

    The proposed change of use for the amenity land involves creating a hard standing for a car and installing a dropped kerb

    14 Gorseway Hatfield AL10 9GS

    Received 28 Oct 2024
  19. Decided - Granted6/2018/3125/FULL

    Erection of 8 x apartments following demolition of existing bungalow

    12 Tolmers Gardens, Cuffley, Potters Bar, EN6 4JE

    Received 28 Nov 2018
  20. Decided - Granted6/2021/1893/EM

    Erection of single storey glass rear extension and internal remodelling

    17 Attimore Road Welwyn Garden City AL8 6LH

    Received 21 Jun 2021
  21. Decided - GrantedN6/2009/2209/TC

    REDUCE WILLOW TREE BY 50%

    71 BEEHIVE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4BN

    Received 5 Oct 2009
  22. Decided - GrantedN6/2013/2064/FP

    Single storey front extensions and pitched roof to front flat roof

    1 Peace Grove Welwyn AL6 0RS

    Received 25 Sept 2013
  23. Decided - GrantedN6/2014/1051/FP

    Erection of rear conservatory

    239 Heronswood Road, Welwyn Garden City, AL7 3JH

    Received 14 May 2014
  24. Appeal Decided - DismissedS6/2008/0522/FP

    DEMOLITION OF EXISTING DWELLING AND ERECTION OF REPLACEMENT DETACHED DWELLING

    EDGE HOUSE, KENTISH LANE, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 6NH

    Received 7 Mar 2008

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