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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
20,013Searchable applications
298Recorded as pending
86%Approval rate · 16,173 approved or refused records
2,264Refused applications

13,909 approved · 2,264 refused · 1,013 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Withdrawn6/2020/0466/LAWP

    Certificate of lawfulness for installation of 3velux rooflights to facilitate conversion of loft to habitable space

    37 Sherrardspark Road Welwyn Garden City AL8 7JY

    Received 18 Feb 2020
  2. Decided - Granted6/2025/0752/EM

    Planting a new English yew (Taxus Baccata) hedgerow along the front garden boundary between our property (number 13) and house number 15, where there is currently no hedge in place. The aim is to improve the definition of the border and make it easier to maintain, as weeds are currently growing through. A very small section of the existing hedge near the pavement will be removed so the new hedge can join seamlessly and fill current small gap

    13 Colgrove Welwyn Garden City AL8 6HY

    Received 22 Apr 2025
  3. Decided - Granted6/2021/1784/HOUSE

    Erection of single storey front extension

    1 Stirling Way Welwyn Garden City AL7 2QA

    Received 1 Jun 2021
  4. Decided - Granted6/2022/0981/EMT

    1 x Atlas Cedar to reduce by 3m height & 1.5m width. Tree has snapped out branches in recent bad weather. Reducing the canopy to make more compact should help prevent future problems

    32 Digswell Road Welwyn Garden City AL8 7PA

    Received 25 Apr 2022
  5. Decided - Refused6/2017/1972/FULL

    Erection of two storey rear extension - retrospective

    22 Selwyn Drive Hatfield AL10 9NJ

    Received 4 Sept 2017
  6. Decided - Granted6/2018/0242/LB

    Erection of single storey rear extension following demolition of existing

    Manor House Ellesfield Welwyn AL6 9HB

    Received 25 Jan 2018
  7. Decided - Granted6/2019/2738/PN8

    Prior approval for the erection of single storey rear extension following demolition of conservatory measuring at 4m in depth, 3.1m in height and 2.7m to the eaves

    25 Autumn Grove Welwyn Garden City AL7 4DB

    Received 28 Oct 2019
  8. Decided - Granted6/2019/2744/HOUSE

    Erection of two storey side extension and part side part rear single storey rear extension with internal alterations.

    1 Stonecross Road Hatfield AL10 0HR

    Received 30 Oct 2019
  9. Decided - Granted6/2018/0019/TPO

    Fell x 1 Scots Pine (T16) (TPO 175)

    5 Roundabout Lane Welwyn AL6 0TH

    Received 3 Jan 2018
  10. Decided6/2018/0471/TPO

    Reduce crown of 1 x Copper beech try by 15-20% - conservation area

    28 High Oaks Road Welwyn Garden City AL8 7BH

    Received 16 Feb 2018
  11. Decided - Granted6/2024/0646/EM

    Like for like replacement roof, soffits, facias and guttering

    42 Mountway Welwyn Garden City AL7 4LB

    Received 4 Apr 2024
  12. Decided - Granted6/2020/3037/HOUSE

    Erection of a replacement conservatory with a solid panel roof extension

    11 Guessens Grove Welwyn Garden City AL8 6RF

    Received 17 Nov 2020
  13. Decided - Granted6/2022/1388/EM

    Taking down old shed and putting up a new one

    18 Fallowfield Welwyn Garden City AL7 1EE

    Received 16 Jun 2022
  14. Decided - Granted6/2018/0585/EM

    Erection of a ground floor rear extension following demolition of a shed and installation of rear rooflights

    43 Springfields Welwyn Garden City AL8 6XT

    Received 1 Mar 2018
  15. Decided - Granted6/2020/2246/LAWP

    Certificate of lawfulness for the erection of side extensions and outbuildings.

    Meadow Farm Northaw Road West Northaw Potters Bar EN6 4QX

    Received 2 Sept 2020
  16. Decided - Granted6/2018/2585/LAWP

    Certificate of lawfulness for loft conversion

    33 Shortlands Green Welwyn Garden City AL7 3RX

    Received 8 Oct 2018
  17. Decided - Granted6/2020/3122/EMT

    Reduce 2 x Oak trees by 30%

    51 Attimore Road Welwyn Garden City AL8 6LG

    Received 23 Nov 2020
  18. Decided - Refused6/2018/2752/HOUSE

    Erection of two storey side extension following demolition of storage unit and alterations to openings with porch

    Little House West End Lane Essendon Hatfield AL9 6AU

    Received 25 Oct 2018
  19. Decided - Granted6/2018/3099/FULL

    Erection of detached two-storey brick building for B1 use with designated parking spaces for 6 vehicles and secure storage housing for 6 bicycles following demolition of existing timber building

    Unit 13 Peartree Farm Welwyn Garden City AL7 3UW

    Received 4 Dec 2018
  20. Decided - Granted6/2021/2040/HOUSE

    Erection of single storey rear extension

    17 Sovereign Place Hatfield AL9 5ET

    Received 5 Jul 2021
  21. Decided - Granted6/2024/1113/FULL

    Erection of a single storey side extension and single storey rear extension with link to existing outbuilding with the main dwelling

    11 Four Acres Welwyn Garden City AL7 4NW

    Received 17 Jun 2024
  22. Decided - Granted6/2019/2858/LB

    Retention of satellite dish

    8 Digswell Lodge Digswell Rise Welwyn Garden City AL8 7NU

    Received 12 Nov 2019
  23. Decided - Granted6/2020/3016/TPO

    6 x Oak Trees marked as O1 to O6 on the required sketch. The proposed works is to reduce the crown of each Oak Tree by approximately 3 Meters, or less where the tree is smaller. particularly the tress marked as O1, O2 and O5.

    6 Mardley Wood Welwyn AL6 0UX

    Received 16 Nov 2020
  24. Decided - Granted6/2022/0027/TC

    Small dead tree species unknown. Saw tree back to just below the point the trunk branches

    11 Handside Lane Welwyn Garden City AL8 6SE

    Received 5 Jan 2022

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 application documents: what to read first

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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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