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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
22,750Searchable applications
313Recorded as pending
86%Approval rate · 18,501 approved or refused records
2,604Refused applications

15,897 approved · 2,604 refused · 1,178 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/2423/HOUSE

    Insertion of new first floor window to side.

    18 Carleton Rise Welwyn AL6 9RF

    Received 22 Sept 2020
  2. Decided6/2026/0529/TC

    G1 Reduce Conifer hedge back to previous growth points. T1 Fell conifer to ground level & re plant ornamental tree

    7 Guessens Road Welwyn Garden City AL8 6QW

    Received 23 Mar 2026
  3. Decided - Granted6/2024/0338/HOUSE

    Erection of a ground floor side extension (west side of house) with integral garage, part in-fill of open porch area and addition of single-storey side extension (east side of house) with single storey rear garden room, following demolition of existing garage

    61 Georges Wood Road Brookmans Park AL9 7BX

    Received 21 Feb 2024
  4. Decided - Granted6/2026/0385/FULL

    Removal of ATM's, Night Safe Components, existing signage and reinstate materials where required

    13 Stonehills Welwyn Garden City AL8 6ND

    Received 3 Mar 2026
  5. Decided - Granted6/2024/0243/EM

    Alterations to rear facade, replacement garage door, partial conversion of garage

    30 Guessens Road Welwyn Garden City AL8 6RA

    Received 6 Feb 2024
  6. Decided - Granted6/2019/1708/HOUSE

    Formation of temporary front steps and installation of hand rails to existing property with retention of original steps underneath

    3 Mimram Place Welwyn AL6 9HQ

    Received 11 Jul 2019
  7. Decided - Granted6/2019/1175/HOUSE

    Erection of single storey rear extension

    26 Princes Avenue Welwyn Garden City AL7 4DT

    Received 15 May 2019
  8. Decided - Granted6/2019/1871/HOUSE

    Erection of single storey front extension and garage conversion to habitable space

    3 Forresters Drive Welwyn Garden City AL7 2HN

    Received 31 Jul 2019
  9. Decided - Granted6/2021/0509/HOUSE

    Erection of a single storey rear extension, following demolition of existing conservatory and alterations to openings, installation of contemporary bay window on the ground floor

    18 Somersham Welwyn Garden City AL7 2PZ

    Received 16 Feb 2021
  10. Decided - Refused6/2022/1324/VAR

    Variation of condition 2 (drawings - ventilation to ensuite and change of external materials) on 6/2019/2941/HOUSE

    22 Selwyn Drive Hatfield AL10 9NJ

    Received 8 Jun 2022
  11. Decided - Granted6/2024/0128/EMT

    Fell 1 x Cherry Tree covered Reduce 1 x Maple by 25%

    5 Hurstlings Welwyn Garden City AL7 3LX

    Received 22 Jan 2024
  12. Decided - Granted6/2019/1420/HOUSE

    Erection of a single storey extension

    11 Wilkins Grove Welwyn Garden City AL8 6JS

    Received 12 Jun 2019
  13. Decided - Refused6/2017/1560/EM

    Erection of single storey side extension, two storey rear extension. Installation of new window openings and replacement of upvc windows. Installation of new paving to existing driveways. Installation of roof tiles following removal of existing tiles and removal of chimney.

    15 Mannicotts Welwyn Garden City AL8 7BW

    Received 17 Jul 2017
  14. Decided - Refused6/2016/2703/FULL

    Erection of two bedroom detached bungalow

    Rear of 11 The Green Welwyn AL6 9EA

    Received 21 Dec 2016
  15. Decided - Granted6/2021/2892/HOUSE

    Erection of two storey front/side/rear extensions and alterations to fenestrations following demolition of existing conservatory and detached garage

    48 Calder Avenue Hatfield AL9 7AG

    Received 8 Oct 2021
  16. Decided - Granted6/2020/3434/HOUSE

    Erection of a single storey rear extension with roof lanterns and garage conversion, following the demolition of existing conservatory.

    9 Barleycroft Road Welwyn Garden City AL8 6JX

    Received 23 Dec 2020
  17. Decided6/2021/0341/TC

    Fell 1 x Apple tree (T1)

    6 Warren Dale Welwyn Garden City AL8 7HN

    Received 2 Feb 2021
  18. Decided - Granted6/2025/0501/EM

    Re-roof including soffits, fascias and guttering: 1. Existing tiles will be reclaimed where possible (estimate more than 50% will be reclaimed) 2. Extra tiles will be sourced from reclamation elsewhere 3. Wooden soffits and fascias will be replaced with uPVC to match colour and barge-board effect (as per 2016 extension) 4. Black plastic guttering will be replaced with like-for-like

    14 Homerfield Welwyn Garden City AL8 6QZ

    Received 18 Mar 2025
  19. Decided - Withdrawn6/2018/2576/LAWE

    Certificate of lawfulness for exiting use of 56 Bradmore Green as residential unit

    56 Bradmore Green Brookmans Park Hatfield AL9 7QS

    Received 8 Oct 2018
  20. Decided6/2025/1040/TC

    Cotoneaster to reduce height by approximately 2m and width by 1.5m. Tree has become large and dominating and is too close to the property making the house very dark.

    89 Pentley Park Welwyn Garden City AL8 7SL

    Received 2 Jun 2025
  21. Decided - Granted6/2017/2452/EM

    Raising of party wall to facilitate roof alterations to conservatory at 2 Marsden Close

    3 Marsden Close Welwyn Garden City AL8 6YE

    Received 16 Oct 2017
  22. Decided - Granted6/2017/0448/HOUSE

    Erection of single storey front and rear extensions plus garage conversion

    40 Bradgate Cuffley Potters Bar EN6 4RN

    Received 8 Mar 2017
  23. Decided - Granted6/2023/0407/EMT

    1 x Golden Cypress to fell to ground level - Declining health

    9 Elmwood Welwyn Garden City AL8 6LD

    Received 22 Feb 2023
  24. Decided - Refused6/2020/0691/FULL

    Erection of 1x dwelling following demolition of existing garage

    The Red House 54 New Road Digswell Welwyn AL6 0AH

    Received 10 Mar 2020

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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    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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