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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
21,776Searchable applications
297Recorded as pending
86%Approval rate · 17,647 approved or refused records
2,505Refused applications

15,142 approved · 2,505 refused · 1,114 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/1910/COND

    Submission of details pursuant to condition number 15 (Vehicular and pedestrian access) and 32 (Vehicular and pedestrian access) on planning permission 6/2021/2857/MAJ

    17 Tewin Road Welwyn Garden City AL7 1BD

    Received 5 Sept 2025
  2. Decided - Granted6/2024/2324/TPO

    Reduce 1 x Oak tree by 30% (covered by TPO 1052 (2023) T2).

    14 Heronfield Little Heath Potters Bar EN6 1JA

    Received 3 Dec 2024
  3. Decided - Granted6/2021/0384/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension, flue and alterations to chimney

    East Ridge House 9A East Ridgeway Cuffley Potters Bar EN6 4AW

    Received 8 Feb 2021
  4. Decided - Split6/2017/2402/COND

    Confirmation that conditions have been complied with S6/2005/0872/FP - 10/10/2005

    129-133 Cunningham Avenue Hatfield AL10 9JZ

    Received 18 Oct 2017
  5. Decided - Granted6/2022/0352/HOUSE

    Erection of a single storey and first floor rear extension including 2 x roof lanterns, a side loggia with glazed roof and rendering of the rear of the building.

    11 Upland Drive Hatfield AL9 6PS

    Received 15 Feb 2022
  6. Decided - Granted6/2017/0891/EM

    Replacement of existing drive and paths with new block paving drive and paths

    1A Handside Lane Welwyn Garden City AL8 6SE

    Received 27 Apr 2017
  7. Decided - Granted6/2024/1919/PN19

    Prior approval for the erection of an agricultural building measuring 35m in length, 15m in width, 3.1m to the eaves and 6.08m to the ridge

    Colesdale Farm Northaw Road West Northaw Potters Bar EN6 4QZ

    Received 8 Oct 2024
  8. Decided - Granted6/2023/2450/TPO

    Fell 1 x Dead Lombardy poplar tree covered by TPO187

    2 Woodfield Road Welwyn Garden City AL7 1JQ

    Received 5 Dec 2023
  9. Decided - Granted6/2021/2569/TPO

    T1 Oak, reduce overhang up to 3m T2 Ash, reduce overhang up to 3m T3 Field maple, reduce up to 3m T4 Oak, reduce up to 3m G5 Blackthorn x4, reduce up to 3m T6 Willow, reduce back overhang from adjacent garden T7 Hornbeam, reduce crown by maximum 30% T8 Hornbeam, reduce crown by maximum 30% T9 Ash, reduce by 50% due to Ash dieback T10 Ash, remove broken branch, reduce crown up to 40% and crown lift epicormic growth to 6m T11 Sycamore, reduce crown up to 30% and crown lift epicormic growth to 6m T12 Ash, reduce crown back to previous approx. 25% and crown lift epicormic growth to 6m T13 Oak, reduce crown by 25% T14 Apple, cut back overhang to a maximum of 2m to a suitable growth point T15 Ash, reduce crown back to previous, approx. 2-3m T16 Oak, reduce crown up to 2m to balance T17 Cherry, reduce crown by 15-20% to reduce weight and balance T18, T19 and T20 Sycamore x3, reduce crown up to 30% and remove epicormic growth at base up to 4m from ground level

    47 Peplins Way Brookmans Park AL9 7UR

    Received 3 Sept 2021
  10. Decided6/2020/2021/TC

    1 x Cherry Plum to reduce by 3m height & 1.5m width

    3 Handside Close Welwyn Garden City AL8 6SR

    Received 12 Aug 2020
  11. Decided - Granted6/2023/2510/HOUSE

    Erection of double storey side extension, ground floor rear extension with partial first floor extension

    113 Peplins Way Brookmans Park AL9 7UT

    Received 18 Dec 2023
  12. Decided - Granted6/2021/1485/HOUSE

    Loft conversion with velux roof lights to side & rear elevations & new window in front gable.

    4 Tomlinson Court Welwyn AL6 9GD

    Received 11 May 2021
  13. Decided - Granted6/2020/1183/EMT

    Fell 1 x Holly Tree

    15 Homestead Lane Welwyn Garden City AL7 4LT

    Received 27 May 2020
  14. Decided - Withdrawn6/2016/1320/EM

    Formation of hardstanding

    4 Lytton Gardens, Welwyn Garden City, AL8 6EG

    Received 29 Jun 2016
  15. Decided - Granted6/2026/0177/EM

    Proposed replacement of the existing double glazed windows and front door with new triple glazed units

    27 Coneydale Welwyn Garden City AL8 7RX

    Received 2 Feb 2026
  16. Decided - Refused6/2022/1589/OUTLINE

    Erection of one dwelling with all matters reserved except for access.

    Land rear of 14 Great North Road Welwyn AL6 0PL

    Received 6 Jul 2022
  17. Decided6/2022/2641/TC

    T1 Hawthorn Tree (X2 on plan) and T2 Elder Tree (X1 on plan) at rear of back garden require crown reduction of 30% to remove storm damage branches

    24 Walden Road Welwyn Garden City AL8 7PF

    Received 21 Nov 2022
  18. Decided - Granted6/2020/1987/EMH

    Erection of a single storey rear extension

    5 Ryelands Welwyn Garden City AL7 4LH

    Received 6 Jul 2020
  19. Decided - Granted6/2019/0053/HOUSE

    Erection of single storey rear extension

    106 Brooksfield Welwyn Garden City AL7 2AN

    Received 10 Jan 2019
  20. Decided - Granted6/2017/2651/HOUSE

    Two storey rear extension and single storey side extension and rendering of property

    5 Evergreen Close Woolmer Green Knebworth SG3 6JN

    Received 14 Nov 2017
  21. Decided - Refused6/2017/2627/HOUSE

    Installation of 2 x front dormers, 1 x rear dormer, 2 x rear rooflights and 1 x side window to facilitate loft conversion

    41 Woodhall Lane Welwyn Garden City AL7 3TB

    Received 10 Nov 2017
  22. Appeal Decided - Dismissed6/2022/2681/HOUSE

    Erection of first floor rear extension

    15 High Dells Hatfield AL10 9JD

    Received 24 Nov 2022
  23. Decided - Granted6/2020/3248/HOUSE

    Erection of two dormers to rear elevation and circular window to side elevation to facilitate loft conversion

    3 Colgrove Welwyn Garden City AL8 6HY

    Received 3 Dec 2020
  24. Decided - Granted6/2025/2553/COND

    Submission of details pursuant to Condition 1a (site investigation scheme), 1b (detailed risk assessment), 1c (options appraisal and remediation strategy), 1d (surface water drainage strategy) & 1e (substance storage strategy) on planning permission 6/2025/2071/VAR

    Land & Buildings on the West side of Travellers Lane Welham Green Hatfield AL9 7HF

    Received 11 Dec 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

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

  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

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  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

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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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