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
24,899Searchable applications
313Recorded as pending
86%Approval rate · 20,432 approved or refused records
2,811Refused applications

17,621 approved · 2,811 refused · 1,317 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - Granted6/2021/0639/EMT

    Reduce 1 x Apple tree 1m in height and width

    9 Little Rivers Welwyn Garden City AL7 1QJ

    Received 26 Feb 2021
  2. Decided - Granted6/2023/1443/LAWP

    Certificate of lawfulness for the erection of outbuildings. The buildings comprise of a garage and store, gym, green house and potting shed, summerhouse with viewing area for tennis courts, natural swimming pool. and summer house and changing rooms for swimming pool

    98 Harmer Green Lane Digswell Welwyn AL6 0ES

    Received 11 Jul 2023
  3. Decided - Granted6/2021/3559/COND

    Submission of details pursuant of condition 1 (obscure-glazed, opening above 1.7m) and condition 2 (materials) on planning permission 6/2018/1573/HOUSE

    41 Valley Road Welwyn Garden City AL8 7DH

    Received 30 Dec 2021
  4. Decided - GrantedS6/2015/1035/FP

    Erection of 8no two bedroom dwellings and the creation of 19no associated off-street parking spaces following the demolition of 78no garages

    2 Hillcrest Hatfield AL10 8HW

    Received 14 May 2015
  5. Decided - Refused6/2017/0817/EM

    Erection of single storey side and rear extension, first floor side extension and two storey rear extension

    22 Ravenfield Road Welwyn Garden City AL7 3UE

    Received 20 Apr 2017
  6. Decided - Refused6/2022/0532/HOUSE

    Erection of single storey rear extension to grade II listed property following partial demolition of existing double garage to single.

    The Old Vicarage Vineyards Road Northaw Potters Bar EN6 4NZ

    Received 7 Mar 2022
  7. Decided - Granted6/2017/1641/MAJ

    Erection of a building arranged over part single and part two storeys; indoor and outdoor sports facilities including floodlit artificial grass pitch and sports hall; associated car parking and landscaping and revised vehicular accesses, following the demolition of existing buildings and caretakers dwelling. Redevelopment of school land to the North of existing buildings to form 87 dwellings (12 x 1-bed, 58 x 2-bed, 15 x 3-bed and 2 x 4-bed), internal access road with associated improvements, public open space, car parking and landscaping.

    Onslow St Audreys School Old Rectory Drive Hatfield AL10 8AB

    Received 26 Jul 2017
  8. Decided - Granted6/2021/1299/TPO

    Prune T1 Oak located at the front of property according to the following specifications: • Crown reduction by removing up to 2 meters growth pruning back to suitable growth points to leave a balanced crown Crown clean removing any damaged, diseased and deadwood Prune G1 Various Species, Beech, Berberis and flowering Current located at the front garden according to the following specifications: • Prune back hard garden side back to mainstem of Beech and following line down other species garden side Prune T3 Pine located at the front of property according to the following specifications: • Crown reduction by removing 1.5 meters growth in height pruning back to suitable growth points reduce lateral branches to leave a balanced crown Prune G3 Mixed Hegde located at the Left of driveway according to the following specifications: • Trim back sides and top to leave a tidy formative shaped hedge trimming back hard form driveway without cuasing possible future browning off Prune T1 Beech located at the left rear of house according to the following specifications: • Crown reduction by removing up to 2.5 meters growth pruning back to suitable growth points to leave a balanced crown bring down height enough but not too much as to keep privacy Crown clean removing any damaged, diseased and deadwood

    5 Mardley Heights Welwyn AL6 0TX

    Received 22 Apr 2021
  9. Decided - Granted6/2025/0611/EM

    Erection for single-storey rear extension and addition of ground floor wc

    177 Howlands Welwyn Garden City AL7 4RL

    Received 31 Mar 2025
  10. Decided - Granted6/2022/0783/EMT

    Replace dying, mixed hedge on border with 3 Parkfields with standard privet hedge.

    1 Parkfields Welwyn Garden City AL8 6EE

    Received 30 Mar 2022
  11. Decided - Granted6/2023/1827/ADV

    Installation of 3 x internally illuminated fascia signs and 2 x internally illuminated hanging signs

    Unit 40 -45 The Galleria Comet Way Hatfield AL10 0XR

    Received 1 Sept 2023
  12. Decided - Granted6/2018/1288/EM

    Removal of Leylandi hedge section measuring 2.6m high x 2.1m deep x 2.1m long and replace section with hedge to grow measuring 2.3m high x 1.1m deep

    30 Dellcott Close Welwyn Garden City AL8 7BB

    Received 3 May 2018
  13. Decided - Granted6/2025/0788/HOUSE

    Erection of a single storey rear extension

    76 Rivenhall End Welwyn Garden City AL7 2PH

    Received 28 Apr 2025
  14. Decided - Granted6/2022/1996/VAR

    Variation of conditions 11 (refuse and recycling), 13 (car parking and turning areas), 14 (car parking allocation) and 17 (access and egress) on planning permission 6/2019/1699/FULL.

    1 Roe Green Close Hatfield AL10 9PD

    Received 26 Aug 2022
  15. Decided6/2020/0979/TC

    Fell 1 x Conifer Tree Reduce 3 x Holly Trees by 30%

    22 Mandeville Rise Welwyn Garden City AL8 7JU

    Received 30 Apr 2020
  16. Decided - Refused6/2016/0884/HOUSE

    Erection of two storey side extension

    84 High Dells Hatfield AL10 9HU

    Received 2 May 2016
  17. Decided - Granted6/2020/1495/EM

    Erection of a single storey, part two storey rear extension

    5 Carve Ley Welwyn Garden City AL7 3HL

    Received 18 Jun 2020
  18. Decided - Granted6/2020/1764/FULL

    Erection of a two storey and two single storey link extensions to building and alteration to elevation to incorporate a fire escape door

    Eisai Europe Limited, European Knowledge Centre, Mosquito Way, Hatfield, AL10 9SN

    Received 20 Jul 2020
  19. Decided - Withdrawn6/2022/1347/HOUSE

    Erection of ground and first floor rear and side extension and conversation of garage to habitable space.

    34 Brookside Crescent Cuffley Potters Bar EN6 4QN

    Received 10 Jun 2022
  20. Decided - Granted6/2026/0618/COND

    Submission of details pursuant to Condition 6 (Surface water drainage scheme), Condition 9 (Energy statement) & Condition 10 (Noise Assessment) on planning permission 6/2022/2387/FULL

    Land at Green Close Brookmans Park AL9 7ST

    Received 8 Apr 2026
  21. Decided - Granted6/2018/2831/HOUSE

    Installation of 1x side window

    48 Ground Lane Hatfield AL10 0HH

    Received 5 Nov 2018
  22. Decided - Granted6/2025/0261/COND

    Submission of details pursuant of condition 1 (Construction Method Statement), condition 2 (Samples of Materials) on planning permission 6/2024/2015/HOUSE

    3 Osborne Court Osborne Road Little Heath Potters Bar EN6 1SX

    Received 12 Feb 2025
  23. Decided - Granted6/2017/0922/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.6m in height and 2.6 m from the eaves.

    28 New Park Road Newgate Street Hertford SG13 8RF

    Received 3 May 2017
  24. Decided - Withdrawn6/2024/0962/EM

    Erection of a single storey side, part single, part double storey rear extension and replacement garage

    16 Guessens Road Welwyn Garden City AL8 6QR

    Received 22 May 2024

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.

  • 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.

  • 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.

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.

Check collection coverage