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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
20,049Searchable applications
298Recorded as pending
86%Approval rate · 16,202 approved or refused records
2,271Refused applications

13,931 approved · 2,271 refused · 1,014 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 12 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/2709/HOUSE

    Erection of a two storey rear and side extension and alterations to the roof following the demolition of existing conservatory and rear extension and the addition of a pitched roof to the existing garage

    39 The Avenue Welwyn AL6 0PW

    Received 28 Oct 2019
  2. Decided - Granted6/2023/1528/HOUSE

    Erection of single storey front extension and installation of front dormer window and alterations to fenestration of the rear elevation

    1 Northaw Road East Cuffley Potters Bar EN6 4LU

    Received 21 Jul 2023
  3. Decided - Granted6/2021/1577/HOUSE

    Demolition of garage, erection of single storey rear and front extension, two storey side extension and loft conversion with rear dormer

    26 Bluebridge Road Brookmans Park Hatfield AL9 7SA

    Received 18 May 2021
  4. Decided - Refused6/2026/0947/TPO

    T1 & T2 Ash to reduce lateral and vertical growth by 2.0-3.0m approx. T3 Pine to reduce back overhanging branches by 2m approx on the flats side of the tree. T4 Sycamore to reduce back by 2.0m approx on the flats side of the tree, to clear the roof. G1 Mixed species group of mainly Sycamores and Limes to lift over pavement and road to clear by 5.0, only over the highway. G2 Row of limes to thin by 15%. T5 Pine to cut back by 1.0- 2.0m on the flats side. Covered by TPO 683

    Claregate Thornton Road Little Heath Potters Bar EN6 1BY

    Received 29 May 2026
  5. Decided - Split6/2019/1245/COND

    Submission of details pursuant to condition 9 (car parking management plan) 19 (Contamination) 25 (Samples of the materials) planning permission 6/2017/2104/MAJ

    51 Bridge Road East Welwyn Garden City AL7 1JR

    Received 23 May 2019
  6. Decided - Granted6/2024/1569/FULL

    Public realm enhancements including new layout, landscaping, paving, play equipment, lighting and street furniture. Alterations to land levels to remove the barrier between the shops and the open space following the demolition of the existing redundant market trading hut

    Hatfield Market Place AL10 0LN

    Received 19 Aug 2024
  7. Decided - Granted6/2020/0081/HOUSE

    Proposed repairs and alterations to cottage and old cowshed

    3 Mill Green Cottages Mill Green Bush Hall Lane Hatfield AL9 5PB

    Received 14 Jan 2020
  8. Decided - Refused6/2021/1591/HOUSE

    Erection of single storey side and rear extension, and two storey side extension.

    15 The Paddocks Welwyn Garden City AL7 2BW

    Received 18 May 2021
  9. Decided - Granted6/2022/0899/HOUSE

    Erection of part single storey, part two storey rear extension, following demolition of existing conservatory

    33 Holwell Road Welwyn Garden City AL7 3RE

    Received 14 Apr 2022
  10. Decided - Withdrawn6/2024/1816/EMT

    Remove large ash tree - self set on the boundary line, need a new fence up.

    41 Rosedale Welwyn Garden City AL7 1DW

    Received 20 Sept 2024
  11. Decided - Granted6/2020/1697/EM

    Erection of a summerhouse/garden shed.

    60 Blakemere Road Welwyn Garden City AL8 7PN

    Received 13 Jul 2020
  12. Decided - Granted6/2024/0941/COND

    Submission of details pursuant of condition 7 (Car Parking Layout), condition 8 (Bicycle Store), condition 9 (Refuse Bins and Recycling Materials), condition 10 (Electric Vehicle Charging Point), condition 12 (Balustrade) on planning permission 6/2023/0627/VAR

    Sylvia Adams House 24 The Common Hatfield AL10 0ND

    Received 20 May 2024
  13. Decided - WithdrawnN6/2015/1373/TP

    DD Application - Fell one oak and one hornbeam. Reduce multi-stem hornbeam by 25%

    5A Roundabout Lane Welwyn AL6 0TH

    Received 30 Jun 2015
  14. Decided - Granted6/2025/0224/LB

    Repointing work to existing garden boundary wall

    Parkside Cottage 56 Mill Lane Welwyn AL6 9ES

    Received 10 Feb 2025
  15. Decided - Granted6/2020/1867/EM

    Repair existing tarmac car hard-standing to the side of the property using resin-bound or block paving

    21 Knightsfield Welwyn Garden City AL8 7JE

    Received 28 Jul 2020
  16. Decided - Refused6/2019/0910/HOUSE

    Erection of first floor side extension, two storey rear extension and conversion of existing garage

    59 Digswell Park Road Welwyn Garden City AL8 7NW

    Received 15 Apr 2019
  17. Decided - Granted6/2024/1740/EM

    Erection of part single part two storey rear extension, replacement front porch, replacement windows and alterations to driveway including the creation of a crossover

    30 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 10 Sept 2024
  18. Appeal Decided - Dismissed6/2023/1234/FULL

    Change of use from HMO to residential institutions (class C2)

    61 Tiger Moth Way Hatfield Hertfordshire AL10 9LT

    Received 12 Jun 2023
  19. Decided6/2019/0197/TPO

    Reduce 1x Cherry tree Crown by 2m -Conservation Area

    51 Valley Road Welwyn Garden City AL8 7DH

    Received 30 Jan 2019
  20. Decided - Granted6/2024/0482/HOUSE

    Installation of rooflights and a front dormer window to facilitate a loft conversion

    3 Butterwick Way Welwyn AL6 9GH

    Received 12 Mar 2024
  21. Decided - Granted6/2022/1145/HOUSE

    Erection of a single storey rear extension with insertion of roof light

    9 Duncan Close Welwyn Garden City Hertfordshire AL7 3XP

    Received 18 May 2022
  22. Decided - Refused6/2024/2363/LAWP

    Certificate of lawfulness for the erection of a single storey side extension with insertion of window to side elevation following the demolition of porch

    Digswell Place, Northwood Lodge Rectory Road Welwyn Garden City Hertfordshire AL8 7SU

    Received 10 Dec 2024
  23. Decided - Granted6/2019/2488/HOUSE

    Erection of single storey rear extension with installation of 6x roof lights, construction of side canopy structure, formation of hardstanding and new gate

    2 Newlands Way Little Heath Potters Bar EN6 1SG

    Received 7 Oct 2019
  24. Decided - Granted6/2026/0814/COND

    Submission of details pursuant to Condition 1 (Biodiversity Gain Plan), 2 (HMMP) and 9 (Landscaping) on planning permission 6/2025/1974/MAJ

    University Of Hertfordshire College Lane Hatfield AL10 9AB

    Received 11 May 2026

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

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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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