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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
40,082Searchable applications
300Recorded as pending
86%Approval rate · 33,617 approved or refused records
4,798Refused applications

28,819 approved · 4,798 refused · 2,204 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 30 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 Counts reflect the last collected status; some records may be out of date.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. Under Consideration6/2023/0821/FULL

    Subdivision of existing dwelling into two dwellings and erection of two 2-storey side extensions, one and two storey rear extensions and alterations to fenestration

    30 Lemsford Village Welwyn Garden City AL8 7TN

    Received 17 Apr 2023
  2. Decided - Granted6/2017/2366/VAR

    Variation of condition 2 (approved plans) on planning permission N6/2015/0585/FP

    Garages adjacent to The Firs Welwyn Garden City AL8 7EA

    Received 16 Oct 2017
  3. Decided - GrantedS6/2007/1958/LU

    CERTIFICATE OF LAWFULNESS FOR PROPOSED LOFT CONVERSION WITH A DORMER WINDOW

    15 DIXONS HILL CLOSE, WELHAM GREEN, HATFIELD, HERTFORDSHIRE, AL9 7EF

    Received 20 Dec 2007
  4. Decided - Granted6/2023/2199/HOUSE

    Erection of a single storey rear extension, extended patio area with covered BBQ and alteration to fenestration

    26 Brookmans Avenue Brookmans Park AL9 7QJ

    Received 30 Oct 2023
  5. Decided - Granted6/2023/0156/EMT

    G1 fell group of 8-9 hawthorn and small holly trees located by the parking area. T1 crown reduction of large beech tree by 1-2m from branch tips and crown lift to 3.5m above ground level. G2 fell dead blackthorn and elder.

    Dellcott Tennis Club Dellcott Close Dognell Green Welwyn Garden City Hertfordshire AL8 7BL

    Received 23 Jan 2023
  6. Decided - GrantedS6/2007/0847/FP

    INSTALLATION OF 2 NO. PARASOLS TO THE RAISED PAVED AREA AT THE REAR OF BUILDING & A TERRASOL TO THE GARDEN AREA TO PROVIDE A COVERED SEATING AREA

    CAVENDISH ARMS, BISHOPS RISE, HATFIELD, HERTFORDSHIRE, AL10 9HF

    Received 11 Jun 2007
  7. Decided - Granted6/2017/1665/HOUSE

    Erection of a single storey rear extension

    35 Station Road Welham Green Hatfield AL9 7PF

    Received 28 Jul 2017
  8. Decided - Granted6/2025/0272/COND

    Submission of details pursuant to condition number 2 (Bin Stores and Recycling) and 3 (Cycle Storage), on planning permission 6/2024/2106/FULL

    26 Stonehills Welwyn Garden City AL8 6NA

    Received 14 Feb 2025
  9. Decided - Withdrawn6/2015/1807/FULL

    Replacement of agricultural barn

    Land adjacent to Woodcot Pottersheath Road Welwyn AL6 9SU

    Received 24 Aug 2015
  10. Decided - Granted6/2018/0045/HOUSE

    Erection of single storey rear extension

    2 Applecroft Road Welwyn Garden City AL8 6LA

    Received 5 Jan 2018
  11. Decided6/2017/1771/TPO

    T1 - Oak Tree. Crown thinning by 10%- Conservation Area

    3 Reddings Welwyn Garden City AL8 7LA

    Received 4 Aug 2017
  12. Decided - GrantedN6/2014/0895/TC

    Removal of Silver Birch tree

    135 Handside Lane, Welwyn Garden City, AL8 6TA

    Received 29 Apr 2014
  13. Decided - Granted6/2025/1615/EMT

    T1 - 1 x Apple to reduce by approximately 3m height and 2m in width T2 - 1 x Apple to reduce by 3m height and 2m width, rear stem with recent failure to reduce by approximately 1m past old pruning points Both Apples to reduce back to a suitable size & shape for garden

    73 The Commons Welwyn Garden City AL7 4RZ

    Received 28 Jul 2025
  14. Decided - Granted6/2020/1476/HOUSE

    Erection of single storey side extensions, two storey rear extension, alteration and enlargement of roof, 3no side dormers. 2no side roof lights and front bay window

    18 Plough Hill Cuffley Potters Bar EN6 4DR

    Received 16 Jun 2020
  15. Decided - Refused6/2016/1755/HOUSE

    Conversion of loft and installation of dormers with roof alterations

    49 Great North Road Welwyn Garden City AL8 7TJ

    Received 26 Aug 2016
  16. Decided - Granted6/2020/0838/HOUSE

    Erection of single storey rear extension and raised patio to facilitate access.

    20 The Grove, Brookmans Park, Hatfield, AL9 7RN

    Received 6 Apr 2020
  17. Decided - Granted6/2018/1270/LAWP

    Certificate of lawfulness to increase the height of the existing utility room

    41 Moors Walk Welwyn Garden City AL7 2AX

    Received 14 May 2018
  18. Decided - Granted6/2021/0996/HOUSE

    Erection of two storey rear extension

    9 Fern Grove Welwyn Garden City AL8 7ND

    Received 25 Mar 2021
  19. Decided - RefusedS6/2013/0665/TP

    Remove 2m overhang from Oak T4 covered by TPO 3

    4 Orchard Close, Cuffley, POTTERS BAR, EN6 4QD

    Received 9 Apr 2013
  20. Decided - Granted6/2023/0152/FULL

    Erection of an agricultural building

    Beavers Lodge Farm Tylers Causeway Newgate Street Hertford SG13 8QN

    Received 23 Jan 2023
  21. Decided - RefusedN6/2013/2668/LUP

    Certificate of lawfulness for the proposed conversion of double garage to ancillary accommodation

    Clematis Cottage, Ayot Little Green Lane, Ayot St Peter, Welwyn, AL6 9BD

    Received 20 Dec 2013
  22. Decided - GrantedN6/2007/0916/FP

    EXTENSIONS AND ALTERATIONS TO CREATE; SECOND FLOOR OFFICE EXTENSION, NEW GLAZED ROOF TO LIGHTWELL, INSERTION OF WINDOWS IN REAR ELEVATION AND EXTENSION OF FIRE ESCAPE.

    THE COUNCIL OFFICES, THE CAMPUS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6AE

    Received 14 Jun 2007
  23. Decided - Granted6/2016/1995/TPO

    Fell Ash and Cherry tree - Conservation Area

    9 High Oaks Road, Welwyn Garden City, AL8 7BJ

    Received 23 Sept 2016
  24. Decided - Granted6/2021/0339/HOUSE

    Erection of a single storey rear extension

    26 Peplins Way Hatfield AL9 7UU

    Received 1 Feb 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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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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