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
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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 8 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedS6/2006/0494/FP

    RETENTION OF FIRST FLOOR OBSCURED GLAZED WINDOW ON REAR ELEVATION

    1 Mymms Drive Brookmans Park Hatfield AL9 7AE

    Received 11 Apr 2006
  2. Decided6/2024/2305/TC

    T1 1 x Beech (Left boundary) to reduce by approximately 3m in height and 2m in width T2 1 x Beech to reduce by approximately 1.5m in both height and width. To retain trees at a suitable size & shape as they affect multiple properties

    12 High Grove Welwyn Garden City AL8 7DW

    Received 2 Dec 2024
  3. Decided - GrantedW6/2013/0366/EM

    Erection of single storey side & rear extension to existing garage, alter vehicle crossover, extend hardstanding and works/removal of trees

    90 Valley Road, WELWYN GARDEN CITY, AL8 7DP

    Received 21 Feb 2013
  4. Decided - Withdrawn6/2015/1559/TPO

    Front and side garden

    24 ROUNDWOOD DRIVE WELWYN GARDEN CITY AL8 7JZ

    Received 13 Jul 2015
  5. Decided6/2021/0694/TC

    Reduce 2x Pear and 1x Plum by 2.5m height and 1m width and reduce height of 1x Cork Oak by 1m

    9 The Orchard Welwyn Garden City AL8 7PL

    Received 3 Mar 2021
  6. Decided - GrantedN6/2015/0822/FP

    Erection of two storey rear extension

    23 Gresley Close, Welwyn Garden City, AL8 7QA

    Received 16 Apr 2015
  7. Decided - Granted6/2016/0350/EM

    Removal of side chimney

    30 Fordwich Road, Welwyn Garden City, AL8 6EY

    Received 1 Mar 2016
  8. Decided - Granted6/2020/1379/LB

    Internal alterations

    Essendon House Church Street Essendon AL9 6AR

    Received 16 Jun 2020
  9. Decided - Granted6/2020/3241/HOUSE

    Erection of a two storey rear extension

    6 Malmsdale Welwyn Garden City AL8 7QN

    Received 3 Dec 2020
  10. Appeal Decided - Dismissed6/2021/1547/FULL

    Proposed 12 month temporary extension for 25m tall telecommunications installation upgrade and associated works

    Welwyn Ambulance Station Ascots Lane Welwyn Garden City AL7 4HL

    Received 14 May 2021
  11. Decided - Granted6/2016/0124/LAWE

    Certificate of lawfulness for house of multiple occupation

    29 Hazel Grove Hatfield AL10 9DE

    Received 22 Jan 2016
  12. Decided - Granted6/2020/2529/HOUSE

    Erection of part single, part two storey rear extension

    55 Windsor Road Welwyn AL6 9JY

    Received 1 Oct 2020
  13. Decided - Granted6/2017/1971/HOUSE

    Erection of single storey and part two storey rear extension and alterations to openings

    57 Digswell Rise Welwyn Garden City AL8 7PT

    Received 1 Sept 2017
  14. Decided - GrantedN6/2007/1717/TP

    REDUCE CROWN OF OAK TREE T1 BY 20% AND POLLARD HORNBEAM T2 BACK TO PREVIOUS POINTS, BOTH COVERED BY TPO 67

    4 Firway Welwyn AL6 0RD

    Received 14 Nov 2007
  15. Decided - GrantedN6/2015/0115/TC

    Removal of Yew tree

    62 Parkway, Welwyn Garden City, AL8 6HH

    Received 22 Jan 2015
  16. Decided - GrantedN6/2007/1299/AD

    INSTALLATION OF INTERNALLY ILLUMINATED EXTERNAL FASCIA SIGN

    MARKS & SPENCER, THE HOWARD CENTRE, WELWYN GARDEN CITY, Hertfordshire, AL8

    Received 30 Aug 2007
  17. Decided - Withdrawn6/2015/2027/FULL

    Erection of 5no two bedroom dwellings with associated facilities and landscaping

    Land to rear of 205-211 St Albans Road West, Hatfield, AL10 0SZ

    Received 29 Sept 2015
  18. Decided - GrantedS6/2013/0334/LB

    Replacement dormer to north elevation and insertion of dormer, alterations to roof and demolition of boiler flue chimney and minor internal re-arrangements

    Sherwoods, West End Lane, Essendon, HATFIELD, AL9 6AU

    Received 12 Feb 2013
  19. Decided - GrantedW6/2008/0168/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION

    36 PENTLEY PARK, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7SB

    Received 28 Jan 2008
  20. Decided - GrantedN6/2015/0418/MA

    Refurbishment of building including alterations to external appearance, reconfiguration of existing first floor mezzanine, car parking and service yard, erection of new means of enclosure and change of use to classes B1(b), B1(c), B2 and B8 with ancillary B1(a) offices

    Pacific House, Unit K City Park, Swiftfields, Welwyn Garden City, AL7 1LY

    Received 2 Mar 2015
  21. Decided - GrantedN6/2009/2156/TE

    REMOVAL OF HAWTHORN TREE AND REDUCTION OF SILVER BIRCH TREE BY 30% LOCATED IN REAR GARDEN

    29 BROCKSWOOD LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7BE

    Received 1 Oct 2009
  22. Decided - GrantedN6/2013/0304/DS

    Discharge of conditiion 3 (method of installation) of planning permission N6/2012/2508/FP

    East Of England Ambulance Services Ascots Lane Welwyn Garden City AL7 4HL

    Received 11 Feb 2013
  23. Decided - Granted6/2021/0052/EM

    Insertion roof lights to facilitate loft conversion.

    143 Parkway Welwyn Garden City AL8 6JB

    Received 8 Jan 2021
  24. Decided - GrantedW6/2004/0158/EM

    EXTENSION TO EXISTING DRIVEWAY TO PROVIDE ADDITIONAL CAR PARKING AREA, WITH NEW BLOCK PAVING TO EXISTING DRIVE AND NEW AREA AND PATH

    36 Barleycroft Road, Welwyn Garden City, AL8 6JU

    Received 4 Feb 2004

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