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England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
40,146Searchable applications
300Recorded as pending
86%Approval rate · 33,676 approved or refused records
4,802Refused applications

28,874 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 31 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/2178/EM

    Erection of a single storey side and part two, part single storey rear extension following demolition of existing sunroom, alterations to openings and replacement of UPVC windows, retiling of roof, over-cladding existing rendered elevations and replacement driveway paving

    15 Mannicotts Welwyn Garden City AL8 7BW

    Received 22 Sept 2017
  2. Decided - RefusedN6/2014/0475/LUP

    Certificate of lawfulness for a proposed erection of two storey front and rear extensions, erection of two single storey side extensions and alterations to roof slope to create a front dormer

    Oak Cottage, Ayot St Peter Road, Ayot St Peter, Welwyn, AL6 9BG

    Received 5 Mar 2014
  3. Decided - Split6/2020/1851/COND

    Submission of details pursuant to condition 3 (sample of materials) 5 (parking scheme) and 6 (glazing scheme and ventilation system) on planning permission 6/2017/1902/FULL (APP/C1950/W/18/3203353)

    36 Salisbury Square Hatfield AL9 5AF

    Received 28 Jul 2020
  4. Decided - Granted6/2022/0551/LAWP

    Certificate of lawfulness for the erection of detached outbuilding

    62 New Park Road Newgate Street Hertford SG13 8RF

    Received 9 Mar 2022
  5. Appeal Decided - Dismissed6/2021/0163/FULL

    Erection of 7 dwellinghouses

    Unit 1-3 51 Welham Manor Welham Green Hatfield AL9 7EL

    Received 20 Jan 2021
  6. Decided - Granted6/2019/3109/EM

    Formation of hardstanding

    26 Little Ganett Welwyn Garden City AL7 3DG

    Received 9 Dec 2019
  7. Decided - Granted6/2025/1508/PN14

    Prior approval for demolition of a building

    Hut Q University of Hertfordshire College Lane Hatfield AL10 9AB

    Received 11 Jul 2025
  8. Appeal Decided - Dismissed6/2019/1617/PN8

    Prior approval for the erection of single storey rear extension measuring 4M deep, 2.9M height and 2.9M to the eaves

    61 Wellfield Road Hatfield AL10 0BY

    Received 2 Jul 2019
  9. Decided - GrantedN6/2008/0739/FP

    ALTERATION OF FRONT ELEVATION (GARAGE) TO FORM A HABITABLE ROOM

    9 Cob Lane Close Digswell Welwyn AL6 0DD

    Received 28 Apr 2008
  10. Decided - GrantedN6/2007/0882/FP

    CHANGE OF USE FROM AGRICULTURAL LAND TO FORM EXTENSION TO EXISTING MANEGE.

    Hill Farm Cottage Hill Farm Lane Welwyn AL6 9BN

    Received 4 Jun 2007
  11. Decided - Granted6/2022/2394/COND

    Submission of details pursuant to condition 4 (submission of a detailed method statement with regards the dismantling, repair and rebuild of the cowshed) on planning permission 6/2020/0081/HOUSE

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

    Received 14 Oct 2022
  12. Decided - GrantedW6/2013/0823/TE

    Section dismantle to ground level, two Prunus Cerasifera trees and two cypress hedges and fell Hawthorne tree to ground level

    3 Hitherway, WELWYN GARDEN CITY, AL8 7RG

    Received 10 Apr 2013
  13. Decided - GrantedN6/2009/0979/TE

    LOWER THE CROWN AND THIN THE CROWN OF BOTH SYCAMORE TREES IN THE REAR GARDEN BY 20%

    11 THE VALLEY GREEN, WELWYN GARDEN CITY, HERTS, AL8 7DQ

    Received 20 May 2009
  14. DecidedN6/2014/1794/TC

    Removal of Conifer tree

    14 Moorside, Welwyn Garden City, AL7 4QH

    Received 7 Aug 2014
  15. Decided - GrantedS6/2007/0144/FP

    PROPOSED LOFT CONVERSION COMPRISING RAISING OF ROOF AND DORMER WINDOW TO REAR ELEVATION

    2 Leefe Way Cuffley Potters Bar EN6 4DF

    Received 29 Jan 2007
  16. Decided - Granted6/2023/0486/LAWE

    Certificate of lawfulness for the existing use of HMO

    24 High Dells Hatfield Hertfordshire AL10 9HU

    Received 3 Mar 2023
  17. Decided6/2020/2489/TC

    Prune (T1) Silver Birch reduction by up to 1.5 metres back to suitable growrth points and reduce Lime (T5) lateral branches overhanging growth back to suitable growth points to alleviate the overhang.

    6 Handside Green Welwyn Garden City AL8 6SQ

    Received 29 Sept 2020
  18. Decided - Refused6/2022/0069/HOUSE

    Erection of front porch and a single storey rear extension

    40 Hunters Way Welwyn Garden City AL7 4NP

    Received 11 Jan 2022
  19. Decided - GrantedS6/2014/0806/FP

    Erection of single storey rear extension

    Kentish Grange, 39 Kentish Lane, Brookmans Park, Hatfield, AL9 6NG

    Received 11 Apr 2014
  20. Decided - GrantedS6/2007/0968/FP

    ERECTION OF A GARDEN SHED, FOLLOWING REMOVAL OF EXISTING

    62 Moffats Lane Brookmans Park Hatfield AL9 7RU

    Received 28 Jun 2007
  21. Decided - GrantedN6/2013/0878/FP

    Erection of single storey rear, first floor side extensions and erection of garden room

    36 Longcroft Lane, Welwyn Garden City, AL8 6EF

    Received 23 Apr 2013
  22. Decided - GrantedS6/2008/0170/AD

    INSTALLATION OF TWO INTERNALLY ILLIMINATED FASCIA SIGNS & WINDOW LETTERING

    UNIT 9 PARKHOUSE COURT, HATFIELD, HERTFORDSHIRE, AL10 9RQ

    Received 11 Jan 2008
  23. Decided - Granted6/2017/0783/COND

    Submission of details pursuant to condition 3 (Boundary fence details) on planning permission 6/2016/1955/HOUSE

    8 Layton Street Welwyn Garden City AL7 4FF

    Received 12 Apr 2017
  24. Decided - GrantedS6/2014/0924/FP

    Erection of rear orangery and raised patio

    34 The Grove, Brookmans Park, Hatfield, AL9 7RN

    Received 28 Apr 2014

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

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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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