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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
40,009Searchable applications
298Recorded as pending
86%Approval rate · 33,551 approved or refused records
4,791Refused applications

28,760 approved · 4,791 refused · 2,199 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 29 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2016/1259/FULL

    Erection of dwellinghouse with integral garage following demolition of existing dwellinghouse

    21 Great North Road Brookmans Park Hatfield AL9 6LB

    Received 22 Jun 2016
  2. Decided6/2025/1066/TC

    Reduce crown of 1 Bay Laurel tree in rear garden by up to 30% to maintain size and shape

    57 Attimore Road Welwyn Garden City AL8 6LG

    Received 5 Jun 2025
  3. Decided - GrantedW6/2014/2404/EM

    Erection of summer house in rear garden

    363 Knightsfield, Welwyn Garden City, AL8 7NB

    Received 31 Oct 2014
  4. Decided - Granted6/2021/0837/EMH

    Replace existing shed with a Summer house

    16 Rooks Hill Welwyn Garden City AL8 6ET

    Received 15 Mar 2021
  5. Decided - WithdrawnS6/2014/1300/S73A

    Variation of condition 2 (drawings) of planning permission S6/2013/1373/FP - Conversion of an existing barn/agricultural storage building to a residential dwelling and refurbishment of existing livery stables and stores

    Windmill Farm Ponsbourne Park, Newgate Street, Hertford, SG13 8QU

    Received 9 Jun 2014
  6. Decided - Withdrawn6/2015/1687/LAWP

    Certificate of lawfulness for ancillary use of existing residential dwelling for registered childminding up to a maximum of 8 children plus the householder's own children

    10 Swanley Bar Lane Little Heath Potters Bar EN6 1NP

    Received 11 Aug 2015
  7. Decided - GrantedW6/2013/1556/EM

    Erection of single storey and two storey rear extensions

    68 Brockswood Lane, Welwyn Garden City, AL8 7BQ

    Received 19 Jul 2013
  8. Decided - GrantedS6/2007/0738/FP

    ERECTION OF DETATCHED GARAGE

    162 Dixons Hill Road Welham Green Hatfield AL9 7DL

    Received 14 May 2007
  9. Decided - Granted6/2023/0677/FULL

    Erection of a dwellinghouse

    Land adjacent to the Warren 8 Carbone Hill Northaw Potters Bar EN6 4PL

    Received 27 Mar 2023
  10. Decided - GrantedW6/2014/1828/TE

    Removal of Conifer tree

    37 Valley Road, Welwyn Garden City, AL8 7DH

    Received 15 Aug 2014
  11. Decided - GrantedN6/2004/1465/LB

    RETENTION OF NON-ILLUMINATED PROJECTING SIGN

    Oakleigh House 45 High Street Welwyn AL6 9EH

    Received 1 Oct 2004
  12. Decided - GrantedS6/2015/1264/DS

    Approval of details reserved by condition 5 (archeological scheme) and condition 6 (risk assessment) on planning permission S6/2012/0719/MA

    17-23 Church Street Hatfield AL9 5AS

    Received 11 Jun 2015
  13. Decided6/2020/1598/TC

    1 x Lawson Cypress to fell to ground level

    14 Little Dell Welwyn Garden City AL8 7HZ

    Received 6 Jul 2020
  14. Decided - Granted6/2015/1715/HOUSE

    Replacement front porch, erection of detached garage, rear outbuilding 'cabin' and internal and external alterations to ground and first floors

    14 Guessens Road Welwyn Garden City AL8 6QR

    Received 12 Aug 2015
  15. Under Consideration6/2026/1207/FULL

    Erection of two new general purpose agricultural buildings within existing farmyard

    Lower Woodside Farm Lower Woodside Woodside Lane Hatfield AL9 6DH

    Received 10 Jul 2026
  16. Decided - Granted6/2019/0700/COND

    Submission of details pursuant to condition 1 ( Materials) , 2 (Landscaping), 3 ( Tree Protection Plan), 5 (Crown Roof Details) on planning permission 6/2018/0215/FULL

    73 Pine Grove Brookmans Park Hatfield AL9 7BL

    Received 21 Mar 2019
  17. Decided - GrantedN6/2015/0488/FP

    Erection of double storey side to rear extension and single storey rear extension

    41 Sylvandale, Welwyn Garden City, AL7 2HS

    Received 6 Mar 2015
  18. Decided - Granted6/2019/0758/HOUSE

    Erection of side extension following demolition of conservatory

    72 Upperfield Road Welwyn Garden City AL7 3LW

    Received 29 Mar 2019
  19. Appeal Decided - Allowed6/2022/0821/FULL

    Formation of single subterranean dwelling

    5 Oakwell Drive Northaw Potters Bar Hertfordshire EN6 4EZ

    Received 4 Apr 2022
  20. Decided - GrantedN6/2004/1347/FP

    TWO STOREY REAR & SINGLE STOREY SIDE EXTENSION

    2 Valley Road Welwyn Garden City AL8 7DF

    Received 6 Sept 2004
  21. Decided - GrantedN6/2008/0677/FP

    ERECTION OF REAR CONSERVATORY

    6 Church Place Welwyn AL6 9FB

    Received 4 Apr 2008
  22. Decided - WithdrawnW6/2004/1249/EM

    SINGLE STOREY REAR & SIDE EXTENSION

    12 Graveley Dell, Welwyn Garden City, AL7 2LF

    Received 16 Aug 2004
  23. Decided - Granted6/2015/2177/FULL

    Erection of a 3no bedroom dwelling following demolition of existing outhouse and garage

    6 Homestead Road Hatfield AL10 0QL

    Received 26 Oct 2015
  24. Decided - GrantedS6/2006/0120/FP

    REPLACEMENT OF EXISTING MOBILE CLASSROOM WITH NEW MOBILE CLASSROOM (AS AMENDED BY LETTER 23.2.06)

    ST MARY'S CE PRIMARY SCHOOL, DELLSOME LANE, NORTH MYMMS, HATFIELD, HERTFORDSHIRE, AL9 7NF

    Received 30 Jan 2006

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

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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

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    Planning permission drawings: how to read plans

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  • 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.

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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.

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