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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
23,120Searchable applications
313Recorded as pending
86%Approval rate · 18,849 approved or refused records
2,643Refused applications

16,206 approved · 2,643 refused · 1,193 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/0347/EM

    Porch extension 1.23sqm

    79 Daniells Welwyn Garden City AL7 1QT

    Received 24 Feb 2025
  2. Decided - Granted6/2024/0061/LAWP

    Certificate of lawfulness for erection of an outbuilding in the rear garden

    45 Pine Grove Brookmans Park AL9 7BL

    Received 9 Jan 2024
  3. Decided - Granted6/2018/0926/HOUSE

    Erection of a side infill extension to connect with the existing utility outbuilding and conversion of the utility outbuilding into habitable accommodation.

    8 Two Oaks Drive Welwyn AL6 0EZ

    Received 9 Apr 2018
  4. Decided - Granted6/2019/0499/TPO

    Works to various trees: reduce 1 x Sweet Chestnut tree (T6) by 30%, 1 x Hornbeam tree (T7) by 30%, 1 x Sweet Chestnut tree (T8) 6 lowest branches, fell 1 x Pine tree (T9), 1 x Pine tree (T10) sever Ivy and remove overhanging branches, fell 1 x Ash tree (T11), 1 x Sycamore tree (T12) sever ivy and crown reduction 30%, 1 x Pine tree (T14) sever Ivy, reduce 1 x Oak tree (T15) by 30% - covered by TPO 203

    14 Lower Mardley Hill Welwyn AL6 0SQ

    Received 5 Mar 2019
  5. Decided - Granted6/2019/0230/EM

    Replacement shed

    8 Summer Dale Welwyn Garden City AL8 7QJ

    Received 4 Feb 2019
  6. Decided - Granted6/2016/2086/EM

    Erection of single storey rear extension and conversion of loft with installation of 3 rooflights

    6 Springfields, Welwyn Garden City, AL8 6XP

    Received 3 Oct 2016
  7. Decided - Granted6/2025/2277/VAR

    Variation of condition 2 (approved plans) on planning permission 6/2023/2553/VAR

    Northaw House Coopers Lane Northaw Potters Bar EN6 4FG

    Received 27 Oct 2025
  8. Decided - Granted6/2020/0164/EM

    Replacement of conservatory roof, and alterations openings

    18 Nursery Gardens Welwyn Garden City AL7 1SF

    Received 23 Jan 2020
  9. Decided - Granted6/2021/1957/EMT

    1 x Leyland Cypress hedge to reduce by 4m height 1 x Goat Willow to reduce back to previous pruning points - approx 3.5m

    2 Broadfield Place Welwyn Garden City AL8 6LJ

    Received 28 Jun 2021
  10. Decided - Granted6/2019/2530/EM

    Erection of part two storey, part first floor side extension

    23 East Mead Welwyn Garden City AL7 4RR

    Received 9 Oct 2019
  11. Decided - Granted6/2024/1899/TPO

    T37 Ash to remove to ground level. T1 Ash to remove to ground level. G2 Leyland cypress to reduce height of all trees to 10m. TPO 524 Woodland 4

    Butterwick Way, Welwyn, AL6 9GL

    Received 3 Oct 2024
  12. Decided - Granted6/2018/1163/ADV

    Installation of 1 x illuminated and 2 x non-illuminated fascia signs

    Land at Shire Park Falcon Way Welwyn Garden City AL7 1TW

    Received 3 May 2018
  13. Decided - Granted6/2025/2095/COND

    Submission of details pursuant to condition 6 (Landscape Management Plan), on planning permission 6/2024/1512/MAJ

    Elizabeth House Elizabeth Close Welwyn Garden City AL7 2JB

    Received 1 Oct 2025
  14. Decided6/2019/2685/TC

    Fell 1 x Silver Birch Fell 1 x Weeping Ash

    8 Densley Close Welwyn Garden City AL8 7JX

    Received 24 Oct 2019
  15. Decided - Granted6/2019/0854/EM

    Erection of a single storey rear extension following the demolition of existing rear/side single storey extension

    6 Hyde Valley Welwyn Garden City AL7 4NA

    Received 9 Apr 2019
  16. Decided - Granted6/2018/1423/EM

    Erection of a rear ground floor extension

    77 Herns Lane Welwyn Garden City AL7 2AQ

    Received 30 May 2018
  17. Decided - Granted6/2017/2551/TPO

    Reduce two Oak tree crowns by upto 25% located in rear garden

    9 Copper Beeches Welwyn AL6 0SS

    Received 6 Nov 2017
  18. Decided - Refused6/2018/1631/COND

    Submission of details pursuant to condition 21 (cycle store details) and 22 (bin store details) on planning permission 6/2017/2104/MAJ

    51 Bridge Road East Welwyn Garden City AL7 1JR

    Received 20 Jun 2018
  19. Decided - Granted6/2022/2698/HOUSE

    Erection of single storey rear extension with extension and alteration of roof from hip to gable

    9 South Drive Cuffley Potters Bar EN6 4HP

    Received 28 Nov 2022
  20. Decided - Granted6/2021/2499/EM

    Single storey rear extension and part first floor rear extension, to include insertion of roof light into existing single storey flat roof and insertion of 2 x windows to existing first floor side and rear elevations.

    45 Fordwich Road Welwyn Garden City AL8 6EY

    Received 25 Aug 2021
  21. Decided - Granted6/2026/0206/COND

    Submission of details pursuant to Condition 9 (Site Waste Management Plan) on planning permission 6/2023/1532/OUTLINE

    Land at South Way Hatfield

    Received 5 Feb 2026
  22. Decided - Granted6/2026/1316/HOUSE

    Erection of part single and part two storey rear extension with alterations to openings on rear elevation

    178 Knella Road Welwyn Garden City AL7 3NN

    Received 27 Jul 2026
  23. Decided - Withdrawn6/2021/2790/TPO

    Ash (T1) Reduce by 30% due to excessive shading. Horse Chestnut (T2) Reduce by 30% due to excessive shading Horse Chestnut (T3) Reduce by 30% due to excessive shading

    14 Hillside Way Welwyn AL6 0TY

    Received 28 Sept 2021
  24. Decided6/2023/1279/TC

    Hazel tree trim the overhanging branches back to the property border line by 20-25%

    11 The Green Welwyn AL6 9EA

    Received 19 Jun 2023

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

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

All planning guides

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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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