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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
40,154Searchable applications
303Recorded as pending
86%Approval rate · 33,678 approved or refused records
4,802Refused applications

28,876 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 3 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/1759/PN8

    Prior approval for the erection of a single storey rear extension measuring 5.5m in depth, 2.9m in height and 2.9m to the eaves.

    18 Oak Grove Hatfield AL10 8DN

    Received 8 Aug 2017
  2. Decided - Granted6/2025/1358/ADV

    Installation of a new externally facing ATM to replace the existing old unit, positioned in the same glass aperture, with a new surrounding illuminated acrylic collar

    The Howard Centre Units 12 And 12a Howardsgate Welwyn Garden City AL8 6HA

    Received 30 Jun 2025
  3. Decided - GrantedC6/1988/0756/FP

    First floor and single storey side extension

    14 Parkfields, Welwyn Garden City, AL8 6ED

    Received 1 Jan 1988
  4. Decided - Refused6/2021/0611/LAWP

    Certificate of lawfulness for the erection of a two storey rear extension to include insertion of obscure glazed roof light

    33 The Avenue Welwyn AL6 0PW

    Received 25 Feb 2021
  5. Decided6/2018/2235/TPO

    Reduce 1 x Weeping Beech tree by 30% - covered by conservation area

    1 Mimram Walk Welwyn AL6 9EZ

    Received 30 Aug 2018
  6. Decided - Granted6/2023/1282/EMT

    Pine T1 to remove the lowest lateral branches over the adjacent garage roof to create clearance

    65 Handside Lane Welwyn Garden City AL8 6SH

    Received 19 Jun 2023
  7. Decided - GrantedW6/2009/2754/EM

    ERECTION OF SINGLE STOREY EXTENSION, FOLLOWING DEMOLITION OF EXISTING CONSERVATORY

    16 DOWNFIELDS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6XR

    Received 31 Dec 2009
  8. Decided - Granted6/2016/0149/EM

    Fell two Conifer trees in the rear garden to ground level

    171 Parkway, Welwyn Garden City, AL8 6JA

    Received 27 Jan 2016
  9. Decided - Granted6/2020/2848/COND

    Submission of details pursuant to condition 2 (proposed crown roof) on planning permission 6/2020/1975/HOUSE

    109 Moffats Lane Hatfield AL9 7RP

    Received 30 Oct 2020
  10. Decided - GrantedS6/2013/0530/FP

    Erection of single storey side extension and alterations to footpath and side gate

    37 Burleigh Way, Cuffley, POTTERS BAR, EN6 4LG

    Received 12 Mar 2013
  11. Decided - Granted6/2022/2250/FULL

    Change of use from garage to part garage part workshop area, installation of insulated and sealed side-hinged doors and french doors following the removal of up and over garage doors, garden door and window

    Parkside House 58 Mill Lane Welwyn AL6 9ES

    Received 28 Sept 2022
  12. Decided - Granted6/2020/2384/HOUSE

    Erection of single storey side/rear extension

    184 Heronswood Road Welwyn Garden City AL7 3EU

    Received 17 Sept 2020
  13. Decided - Granted6/2020/0975/EM

    Fell 1 x Cherry Tree Reduce 1 x Beech Tree by 30% Reduce 1 x Yew Trees by 30% Planning permission/consent for works granted 27th April 2020 (6/2020/0553/TC). . .

    The Old Manse 40 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 30 Apr 2020
  14. Decided - Refused6/2024/0089/HOUSE

    Retention of a front drive wall facing a road (retrospective)

    120 Brookside Crescent Cuffley Potters Bar Hertfordshire EN6 4QL

    Received 15 Jan 2024
  15. Decided - Granted6/2022/0811/HOUSE

    Erection of a part single storey and part two storey front and rear extension.

    1 Mardley Heights Welwyn AL6 0TX

    Received 4 Apr 2022
  16. Decided - GrantedW6/2013/0347/EM

    Erection of single storey rear extension

    220 Daniells, WELWYN GARDEN CITY, AL7 1QQ

    Received 21 Feb 2013
  17. Decided - Granted6/2015/1924/TC

    Reduce Goat Willow tree and Bay tree to 15ft and removal of Leylandii tree

    38 Elmwood Welwyn Garden City AL8 6LE

    Received 15 Sept 2015
  18. Decided - Granted6/2025/2073/EMT

    Removal of two oversized trees in rear garden (Cherry and Acer).

    59 Daniells Welwyn Garden City AL7 1QY

    Received 29 Sept 2025
  19. Decided - Refused6/2025/0950/EM

    Erection of a two storey side/single storey rear extension and loft conversion

    79 Mill Green Road Welwyn Garden City AL7 3UX

    Received 22 May 2025
  20. Decided - Withdrawn6/2017/1142/TPO

    Removal of Hawthorn tree - Conservation Area

    6 Attimore Close Welwyn Garden City AL8 6LN

    Received 25 May 2017
  21. Decided - Granted6/2018/1466/LAWP

    Certificate of lawfulness for erection of a single storey side extension following demolition of existing garage

    51 School Lane Welwyn AL6 9PL

    Received 1 Jun 2018
  22. Decided - Withdrawn6/2022/0050/TC

    Prune Silver birch T1: Thin crown to remove approximately 20% of live branches. Most thinning cuts will be between 2 and 3 centimetres in diameter.

    6 Handside Green Welwyn Garden City AL8 6SQ

    Received 10 Jan 2022
  23. Decided - Granted6/2025/2228/EM

    Erection of a single storey rear extension, first floor front and rear dormers to side, loft conversion, porch canopy, enlarged driveway & raised roof to existing garage

    79 Attimore Road Welwyn Garden City AL8 6LG

    Received 21 Oct 2025
  24. Decided - Granted6/2025/0872/HOUSE

    Part single, part two storey, side and rear extension

    12 Parsonage Lane Welham Green Hatfield AL9 7LU

    Received 12 May 2025

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

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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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