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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
30,585Searchable applications
303Recorded as pending
87%Approval rate · 25,451 approved or refused records
3,348Refused applications

22,103 approved · 3,348 refused · 1,626 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - RefusedS6/2015/0425/FP

    Erection of a two storey rear and ground floor side extensions including roof extension comprising of loft conversion and internal alterations

    72 Warrengate Road, North Mymms, Hatfield, AL9 7TY

    Received 4 Mar 2015
  2. Decided - GrantedC6/1987/0495/FP

    Single storey rear extension

    92 Sylvandale, Welwyn Garden City, AL7 2HT

    Received 1 Jan 1987
  3. Decided - Granted6/2019/2176/HOUSE

    Erection of first floor side extension

    76 Longcroft Lane Welwyn Garden City AL8 6EF

    Received 2 Sept 2019
  4. Decided6/2017/0846/COUNTY

    Removal of existing single modular classroom building to replace with double modular classroom building for a temporary period of seven years

    De Havilland Primary School Travellers Lane Hatfield AL10 8TQ

    Received 21 Apr 2017
  5. Decided - Granted6/2017/1676/FULL

    Erection of two storey front and side extension, installation of dormer window to facilitate conversion of loft to habitable space and erection of two storey rear extension to create self-contained 2 bed maisonette

    13 The Gardens Brookmans Park Hatfield AL9 7UL

    Received 30 Jul 2017
  6. Decided - Granted6/2024/1881/EMT

    Tree removal consent for a willow tree located in the rear garden as it is rotten and large boughs are falling off in the wind

    152 Heronswood Road Welwyn Garden City AL7 3EU

    Received 30 Sept 2024
  7. Decided - Split6/2022/2352/COND

    Submission of details pursuant to condition 1 (Construction Management Plan), condition 2 (Materials), condition 4 (Refuse and Recycling), condition 7, (Environmental Noise Assessment) and condition 9 (Cycle Parking Plan) on planning permission 6/2021/3319/FULL

    2 Theobalds Road Cuffley Potters Bar EN6 4HQ

    Received 10 Oct 2022
  8. Decided - Granted6/2015/1989/EM

    Replacement front door and side door from UPVC to composite design

    68 Brockswood Lane, Welwyn Garden City, AL8 7BQ

    Received 10 Sept 2015
  9. Decided6/2020/0750/TC

    Reduce 1x Ash tree by 15% to previous pruning points

    84 Attimore Road Welwyn Garden City AL8 6LP

    Received 19 Mar 2020
  10. Decided - Granted6/2016/0077/TPO

    Crown reduce two Ash trees to 11m and reduce spread to 7m & 9m - Conservation Area

    3 Farm Close, Welwyn Garden City, AL8 6RP

    Received 18 Jan 2016
  11. Decided - WithdrawnS6/2015/1319/LB

    To glaze front gable and omit bat loft, previously approved under S6/2013/0951/LB

    Cucumber Hall Cucumber Lane Essendon Hatfield AL9 6JB

    Received 22 Jun 2015
  12. Decided - GrantedN6/2014/0627/FP

    Conversion of garage to habitable accommodation

    92 Lords Wood, Welwyn Garden City, AL7 2HG

    Received 27 Mar 2014
  13. Under Consideration6/2026/1465/EMT

    1 x Hawthorn to reduce height to leave around 4-5m above ground level. To retain balance and minimise overhang to neighbours garden

    6 Parkway Close Welwyn Garden City AL8 6HJ

    Received 19 Aug 2026
  14. Decided - Refused6/2023/1035/TPO

    Fell both T1 & T4, remove both stumps. Re plant 2 suitable trees in front or back garden which ever tree officer prefers. They’ve been topped/pollarded to a odd height just above the low guttering. This causes a blanket of shade over the front of the house 6 months of the year. 2 large cracks have appeared on no15’s drive way heading from T1. T4 is placed near a water pipe and a block paving which left for 10 years may course trouble TPO 875 (2023)

    15 Bluebells Welwyn AL6 0XD

    Received 16 May 2023
  15. Decided - Granted6/2020/0844/EIA

    Request for a screening opinion to determine whether an Environmental Statement is required for the erection of 320 dwellings

    Land at Creswick, Welwyn Garden City

    Received 6 Apr 2020
  16. Decided - Withdrawn6/2025/2066/TPO

    T1- Oak tree- Reduction of approximately 2 meters to the Oak tree encroaching onto the roofline and gutters

    21 Stanley Drive Hatfield AL10 8XX

    Received 29 Sept 2025
  17. Decided - Withdrawn6/2022/0681/ADV

    Installation of 1 x illuminated aluminium fascia sign

    Unit 17 The Howard Centre Howardsgate Welwyn Garden City AL8 6HA

    Received 22 Mar 2022
  18. Decided - Granted6/2017/1339/LAWP

    Certificate of lawfulness for the erection of a two storey rear extension

    South Lodge Lower Woodside Woodside Lane Hatfield AL9 6DH

    Received 21 Jun 2017
  19. Decided - GrantedN6/2014/0679/TC

    Coppice Hazel tree by upto 5 metres

    14 The Valley Green, Welwyn Garden City, AL8 7DQ

    Received 25 Mar 2014
  20. Decided - Granted6/2023/0668/LAWP

    Certificate of lawfulness for the construction of garden room

    44 Mill Lane Welwyn Hertfordshire AL6 9ET

    Received 24 Mar 2023
  21. Decided - Granted6/2024/1498/LAWE

    Certificate of lawfulness for the retention of existing dwelling as built in 2009

    8 The Limberlost Welwyn AL6 9TS

    Received 7 Aug 2024
  22. Appeal Decided - Dismissed6/2025/0848/HOUSE

    Erection of a first-floor side extension

    110 Guessens Road Welwyn Garden City AL8 6RS

    Received 6 May 2025
  23. Decided - Granted6/2016/1415/HOUSE

    Erection of single storey rear extension including internal alterations

    23 The Grove, Brookmans Park, Hatfield, AL9 7RL

    Received 12 Jul 2016
  24. Decided - Granted6/2017/1345/HOUSE

    Retention of wooden playground.

    11 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 22 Jun 2017

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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    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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