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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
37,430Searchable applications
335Recorded as pending
86%Approval rate · 31,224 approved or refused records
4,351Refused applications

26,873 approved · 4,351 refused · 2,016 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 26 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/0640/HOUSE

    Erection of single storey rear extension with insertion of roof light, following demolition of conservatory

    20 Mulberry Mead Hatfield Hertfordshire AL10 9EN

    Received 18 Mar 2022
  2. Decided - Granted6/2023/1585/TPO

    T2- Hornbeam- Remove 1 low branch as it is overhanging the road (TPO 1040 G3)

    36 Chestnut Walk Welwyn AL6 0SD

    Received 31 Jul 2023
  3. Decided - GrantedC6/1987/7041/AD

    Two illuminated signs

    Land fronting, Bessemer Road, adjacent to Shire Park, Welwyn Garden City, AL7 1HJ

    Received 1 Jan 1987
  4. Decided - GrantedN6/2013/1710/FP

    Demolition of part of wall and addition of electric shutter door, new framework, bollards and new canopy

    PARCELFORCE DEPOT, CITY PARK, 2 Swiftfields, Welwyn Garden City, AL7 1LY

    Received 6 Aug 2013
  5. Decided - Granted6/2022/2152/COND

    Submission of details pursuant of condition 1 (construction method statement), condition 2 (external materials), condition 3 (landscape) and condition 5 (noise) on planning permission 6/2020/3226/PN32

    Sylvia Adams House 24 The Common Hatfield AL10 0NB

    Received 15 Sept 2022
  6. Decided - Granted6/2015/2018/HOUSE

    Erection of outdoor brick build barbeque and pizza oven

    22 Dellfield Road Hatfield AL10 8EW

    Received 30 Sept 2015
  7. DecidedN6/2008/1907/TC

    WORKS TO ACER TREE.

    LAND ADJACENT TO 25 BARLEYCROFT ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE

    Received 9 Oct 2008
  8. Decided - GrantedS6/2015/0789/MA

    Erection of single storey rear extension with roof terrace

    Wildewood, Kentish Lane, Essendon, Hatfield, AL9 6JG

    Received 13 Apr 2015
  9. Decided - Granted6/2021/0612/LAWP

    Certificate of lawfulness for the erection of side dormer, removal of chimney stack and insertion of glazing roof light

    33 The Avenue Welwyn AL6 0PW

    Received 25 Feb 2021
  10. Decided - Granted6/2019/1763/TPO

    Crown clean 1 x Dawn redwood tree (T1) Reduce 1 x Oak tree (T2) by crown thinning by 25% Fell 2 x Sweet chestnut trees (T3 and T7) Remove epicormioc growth from x5 Sweet chesntut trees (T4, T5, T6, T8 and T9 Crown thin by 30% x1 Sweet chestnut (T10)

    6 Pine Crest Welwyn AL6 0EQ

    Received 17 Jul 2019
  11. Decided - Granted6/2021/1516/EMH

    Erection of single storey rear extension with roof light, following the demolition of existing conservatory.

    7 Linces Way Welwyn Garden City AL7 3JN

    Received 12 May 2021
  12. Decided6/2024/2211/TC

    1 x Sweetgum to reduce by approximately 2.5m in height and 1.5m in width. Tree has large soft decay area at the base. Tree also close to neighbouring property

    16 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 15 Nov 2024
  13. Decided - Granted6/2025/1695/PN8

    Prior approval for the erection of a single storey rear extension measuring 3.30m in depth, 3.66m in height and 2.64m to the eaves

    219 Knella Road Welwyn Garden City AL7 3NS

    Received 7 Aug 2025
  14. Decided - Granted6/2017/1739/HOUSE

    Erection of single storey side extension

    9 Brookside Hatfield AL10 9RR

    Received 7 Aug 2017
  15. Decided - Granted6/2020/1740/FULL

    Installation of 2x Portakabin buildings for 3 years

    Eisai Limited European Knowledge Centre Mosquito Way Hatfield AL10 9SN

    Received 15 Jul 2020
  16. Decided - GrantedS6/2013/1232/MA

    Erection of two storey extension to provide 3000sqm of floor space for offices, laboratories, packaging lines and plant equipment (use class B1)

    Eisai Europe Ltd, Mosquito Way, Hatfield, AL10 9SN

    Received 11 Jun 2013
  17. Decided - Withdrawn6/2026/0427/FULL

    Change of use of two existing buildings from Class B8 (Storage) to Class E (Gym and Wellness Centre)

    Brocket Park Auberge Du Lac Marford Road Lemsford Welwyn Garden City AL8 7XG

    Received 9 Mar 2026
  18. Decided - Granted6/2017/1223/FULL

    Installation of replacement shop front

    64 Town Centre Hatfield AL10 0JJ

    Received 5 Jun 2017
  19. Decided - GrantedW6/2015/0790/EM

    Erection of two storey and single storey rear extension

    19 West Mead, Welwyn Garden City, AL7 4SA

    Received 13 Apr 2015
  20. Decided - GrantedN6/2007/1284/FP

    INSTALLATION OF AUTOMATED TELLER MACHINE

    Sainsbury's Supermarket, 44 Church Road, Welwyn Garden City, Hertfordshire, AL8 6PJ

    Received 28 Aug 2007
  21. Decided - Granted6/2016/0108/EM

    Erection of a single storey rear extension

    4 Camfield, Welwyn Garden City, AL7 4ED

    Received 20 Jan 2016
  22. Decided - Granted6/2020/2476/EM

    Replacement of existing shed/base with larger shed/base in rear garden.

    41 Elmwood Welwyn Garden City AL8 6LD

    Received 28 Sept 2020
  23. Decided - Granted6/2016/0513/TPO

    Reduce Ash tree crown by up to 25% - Conservation Area

    12 Pentley Park, Welwyn Garden City, AL8 7RU

    Received 17 Mar 2016
  24. Decided - Granted6/2021/1877/FULL

    Erection of a two storey side extension, increase in ridge height and alteration of rear hip to gable, with insertion of roof lights and dormers, following demolition of existing single storey side extension.

    33 Codicote Road Welwyn AL6 9TT

    Received 18 Jun 2021

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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  • 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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