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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
40,229Searchable applications
309Recorded as pending
86%Approval rate · 33,738 approved or refused records
4,810Refused applications

28,928 approved · 4,810 refused · 2,212 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 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 Counts reflect the last collected status; some records may be out of date.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 - WithdrawnC6/1988/0526/FP

    Change of use from factory/office (Class B2) to factory/office (Class B1)

    Martinfield, Welwyn Garden City, AL7 1JG

    Received 1 Jan 1988
  2. Decided - Withdrawn6/2016/0039/LB

    Retention of WC following internal alterations and installation of electrical extractor fan and installation of replacement skylight over bathroom

    8 Mill Lane Welwyn AL6 9ET

    Received 13 Jan 2016
  3. Decided - GrantedN6/2013/0458/FP

    Erection of two storey rear and single storey side extensions

    23 Wilga Road, WELWYN, AL6 9PT

    Received 27 Feb 2013
  4. Decided6/2018/1374/TPO

    Reduce crown of Oak tree (T1) by 25% - Conservation Area

    11 Woodland Rise Welwyn Garden City AL8 7LJ

    Received 18 May 2018
  5. Decided6/2021/3095/TC

    1 x Beech to crown lift to clear 3m and prune the branch tips over the road to a height of 5.2m to the kerb edge. Reduce crown by 2-2.5m to suitable growth points

    Didbury Cottage West End Lane Essendon Hatfield AL9 6AT

    Received 28 Oct 2021
  6. Decided - Granted6/2019/1732/EM

    Erection of single storey rear extension following demolition of existing, front extension to existing side lean-to, installation of parapet to rear garage and erection of dormer window to facilitate loft conversion

    41 Elmwood Welwyn Garden City AL8 6LD

    Received 15 Jul 2019
  7. Decided - Granted6/2020/2341/FULL

    Erection of ground rear extension to ground floor restaurant with enlarged rooflight and erection for first floor rear extension and rear dormer to create two flats.

    16 Station Road Cuffley Potters Bar EN6 4HT

    Received 14 Sept 2020
  8. Appeal Decided - Dismissed6/2023/2562/FULL

    Erection of additional storey to approved 4-storey block of 8 self-contained flats to facilitate an additional 2 bed 4 person self-contained flat.

    22 The Common Hatfield AL10 0ND

    Received 28 Dec 2023
  9. Decided - Granted6/2016/0169/EM

    Reduce Sycamore tree by 25% located in rear garden. Reduce 2 conifers by 30%.

    5 Longcroft Lane, Welwyn Garden City, AL8 6EB

    Received 29 Jan 2016
  10. Decided - GrantedN6/2013/2711/FP

    Erection of a dwellinghouse following demolition of existing dwelling and other structures on site

    14 Willow Walk Welwyn AL6 9SQ

    Received 20 Dec 2013
  11. Decided - Granted6/2018/2894/EM

    To Fell 1x Acacia Tree

    29 The Cloisters Welwyn Garden City AL8 6DU

    Received 12 Nov 2018
  12. Decided - GrantedW6/2014/0743/TE

    Fell Fir tree in rear garden

    54 Parkway, Welwyn Garden City, AL8 6HH

    Received 3 Apr 2014
  13. Decided - Refused6/2018/3030/FULL

    Retrospective change of use from a dwelling house (use class C3) to a large HMO (sui generis) with up to seven persons

    70 Wood Close Hatfield AL10 8TX

    Received 27 Nov 2018
  14. Decided - Granted6/2016/0654/EM

    Conversion of garage to study

    7 Cypress Avenue, Welwyn Garden City, AL7 1HN

    Received 8 Apr 2016
  15. Decided - Granted6/2016/2371/HOUSE

    Erection of outbuilding following demolition of existing sheds

    43 Heronswood Road Welwyn Garden City AL7 3NX

    Received 9 Nov 2016
  16. Decided - Granted6/2022/2112/COND

    Submission of details pursuant of condition 1 (information and sample for brickwork on replacement wall) on planning permission 6/2022/1024/HOUSE

    28 Lemsford Village Welwyn Garden City Hertfordshire AL8 7TN

    Received 12 Sept 2022
  17. Decided - Refused6/2019/3232/FULL

    Erection of single storey rear extension following part demolition of main building and alterations to openings and appearance of front elevation

    Marshmoor Works, Great North Road, Hatfield, AL9 5SD

    Received 24 Dec 2019
  18. Decided - Granted6/2021/2223/EM

    Erection of a single storey rear extension

    31 Daniells Welwyn Garden City AL7 1QY

    Received 22 Jul 2021
  19. Decided - Granted6/2022/0978/EMT

    Reduce crown of 2 x Ash trees (T1 & T2) by 3-4m and remove deadwood

    312 Knightsfield, Welwyn Garden City, AL8 7NQ

    Received 25 Apr 2022
  20. Appeal Decided - Allowed6/2019/2886/LAWE

    Certificate of lawfulness for existing use of outbuilding as residential dwelling

    Howe Wood Farm, White Stubbs Lane, Bayford, Hertford, SG13 8QA

    Received 18 Nov 2019
  21. Decided6/2023/2249/TC

    Fell 15m goat willow tree

    75 Knightsfield Welwyn Garden City AL8 7JE

    Received 6 Nov 2023
  22. Decided - Refused6/2020/0696/LAWE

    Certificate of lawfulness for the erection of outbuilding

    28 New Park Road Newgate Street Hertford SG13 8RF

    Received 11 Mar 2020
  23. Decided - Granted6/2021/2034/FULL

    Installation of three storage containers

    European Knowledge Centre Eisai Manufacturing Mosquito Way Hatfield AL10 9SN

    Received 5 Jul 2021
  24. DecidedN6/2008/2138/TC

    REDUCE AND SHAPE CROWN BY 25%.

    LAND ADJACENT TO, 27 BRIDGE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6UG

    Received 13 Nov 2008

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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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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