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England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
30,665Searchable applications
303Recorded as pending
87%Approval rate · 25,525 approved or refused records
3,360Refused applications

22,165 approved · 3,360 refused · 1,631 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 19 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2015/1647/EM

    Part two storey rear, single storey rear & first floor side extension

    28 Great Dell Welwyn Garden City AL8 7HY

    Received 16 Jul 2015
  2. Decided - Granted6/2025/0020/LAWP

    Certificate of lawfulness for the erection of boundary wall with intermediate railings and associated entrance gate

    23A The Ridgeway Cuffley Potters Bar EN6 4BB

    Received 7 Jan 2025
  3. Decided - Granted6/2021/3456/PN8

    Prior approval for single storey rear extension 5.05m in depth, 3.9m in height and 2.5m to the eaves.

    61 Holme Road Hatfield AL10 9LG

    Received 9 Dec 2021
  4. Decided - RefusedN6/2015/1410/LAWE

    with the enlargement of the roof to extend the first floor habitable space

    20 Reynards Road Welwyn AL6 9TP

    Received 1 Jul 2015
  5. Decided - Granted6/2019/0802/HOUSE

    Erection of a single storey rear extension

    34 Wren Wood Welwyn Garden City AL7 1QG

    Received 3 Apr 2019
  6. Decided - Granted6/2026/0032/EM

    Extension of driveway and new path, including fitting soakway for rainwater

    21 Russellcroft Road Welwyn Garden City AL8 6QX

    Received 8 Jan 2026
  7. Decided - Granted6/2019/0372/LB

    Installation of an AED (Automated External Defibrillator)

    Barn Theatre Barn Close Welwyn Garden City AL8 6ST

    Received 18 Feb 2019
  8. Decided - SplitN6/2015/0699/DS

    Approval of details reserved by condition 2a (proposed finished levels), 2b & c (proposed finishes and boundary treatment) 2d (planting plans) and 2e (service runs) of planning permission N6/2013/2727/DE

    Former The Frythe 5 Digswell Hill Welwyn AL6 9AR

    Received 27 Mar 2015
  9. Decided6/2026/0130/TC

    1 x Corkscrew Willow to reduce by 2.5m height and 1.5m width

    8 Homerfield Welwyn Garden City AL8 6QZ

    Received 27 Jan 2026
  10. Decided - Granted6/2020/0655/TPO

    Reduce crowns of 3x Oak trees (T2, T3 and T4) (TPO 495) by 30%

    27 Shrublands Hatfield AL9 7AL

    Received 9 Mar 2020
  11. Decided - Granted6/2020/2479/PN8

    Prior approval for a single-storey rear extension measuring 6m, with a maximum height of 3.1m, with a maximum eaves height of 2.9m

    89 Lemsford Road Hatfield AL10 0DZ

    Received 25 Sept 2020
  12. Decided - Granted6/2019/1206/HOUSE

    Erection of first floor side extension, single storey rear extension and replacement roof of existing single storey front and side extension

    38 Selwyn Crescent Hatfield AL10 9NN

    Received 17 May 2019
  13. Decided - Granted6/2023/0781/HOUSE

    Extension of front existing storage / utility room with installation of a pitched roof, reconfiguration of front door canopy and installation of front and rear roof windows following demolition of existing conservatory

    11 Dolesbury Drive Welwyn AL6 0QE

    Received 11 Apr 2023
  14. Decided - Refused6/2021/3013/HOUSE

    Erection of a single storey rear extension

    17 Danesbury Park North Ride Welwyn AL6 9SA

    Received 20 Oct 2021
  15. Decided - Granted6/2020/3073/TPO

    T1 Conifer - Crown reduction by 2-3m in height and 1m in spread T2 Conifer - Fell T3 Beech - Crown reduction back to previous cuts, approximately 2m from branch tips T4 Beech - Fell T5 Pine - Crown lift by 2m over neighbour's drive G1 Mixed broadleaf, mainly oak - Crown lift to get 6m height clearance over The Drive.

    17 The Drive Welwyn AL6 0TW

    Received 19 Nov 2020
  16. Decided - GrantedC6/1987/0410/FP

    Erection of a sectional cold store to rear of premises

    10 Little Ridge, Welwyn Garden City, AL7 2BH

    Received 1 Jan 1987
  17. Decided - Granted6/2025/0378/COND

    Submission of details pursuant of condition 17 (external lighting drawings) on planning permission 6/2021/3367/MAJ

    Ludwick Green Ludwick Way Welwyn Garden City Hertfordshire AL7 3QN

    Received 27 Feb 2025
  18. Decided - GrantedW6/2014/2365/TE

    Removal of a cherry and an ash tree

    12 Archers Ride Welwyn Garden City AL7 4PS

    Received 27 Oct 2014
  19. Decided - GrantedS6/2015/0689/TP

    Removal of dangerous tree split in half that is covered by TPO 12

    5 Burleigh Mead Hatfield AL9 5ED

    Received 27 Mar 2015
  20. Decided - Granted6/2020/0024/LAWP

    Certificate of lawfulness for the of an erection of single storey rear extension

    17 Sovereign Place Hatfield AL9 5ET

    Received 8 Jan 2020
  21. Decided6/2019/2070/TC

    Reduce 1 x Maple tree by 40%

    172 Longcroft Lane Welwyn Garden City AL8 6EN

    Received 19 Aug 2019
  22. Decided - Granted6/2021/1709/HOUSE

    Demolition of 2 existing out-buildings in forecourt and addition of a new double garage in the forecourt.

    95 Robbery Bottom Lane Welwyn AL6 0UL

    Received 28 May 2021
  23. Decided - Granted6/2015/1928/HOUSE

    Erection of first floor side, two single storey rear extensions,replacing existing pitched roofing over existing rear extension with new flat roofing including 4 new roof lights, conversion of existing roof with a new dormer window to the rear roof scape and alterations to the front fenestration

    311 St Albans Road West, Hatfield, AL10 9RJ

    Received 16 Sept 2015
  24. Decided - Granted6/2021/1333/HOUSE

    Hip to gable conversion, insertion of a rear dormer and 3 x rooflight windows to the front elevation

    16 Selwyn Avenue Hatfield AL10 9NP

    Received 26 Apr 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

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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