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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
34,738Searchable applications
313Recorded as pending
87%Approval rate · 28,943 approved or refused records
3,852Refused applications

25,091 approved · 3,852 refused · 1,808 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 22 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2016/2534/EM

    Erection of single storey side extension, loft conversion, installation of bay window and removal of small apple tree

    1 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 28 Nov 2016
  2. Decided - Granted6/2015/1589/TPO

    Reduce Oak tree crown by 30% covered by TPO 108

    19 Mardley Wood Welwyn AL6 0UY

    Received 28 Jul 2015
  3. Decided - GrantedN6/2014/1293/DS

    Approval of conditions reserved by condition 3 (materials) of planning permission N6/2014/0665/FP

    22 Spinney Lane Welwyn AL6 9TF

    Received 6 Jun 2014
  4. Decided - Granted6/2015/1666/ADV

    Installation of 1no illuminated fascia sign to front elevation

    Flat 2 2 - Westfield Welwyn Garden City AL7 1QS

    Received 5 Aug 2015
  5. Decided - Granted6/2017/0148/LB

    Replacement of French doors with new French doors and replacement of doors with matching

    Digswell Water Mill Digswell Lane Welwyn AL6 0SW

    Received 27 Jan 2017
  6. Decided - Refused6/2015/1894/LAWP

    Conversion of garage to study room

    14 Wyton, Welwyn Garden City, AL7 2PF

    Received 9 Sept 2015
  7. Decided - Granted6/2017/0333/TPO

    Removal of Oak tree, covered by TPO 294 (2004) Dead & Dangerous

    6A Wendover Drive Welwyn AL6 9LT

    Received 20 Feb 2017
  8. Decided - GrantedW6/2014/2553/EM

    Alteration to rear elevation, replacement of existing hardstanding, side access path and formation of rear patio area

    10 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 20 Nov 2014
  9. Decided - Granted6/2021/0129/FULL

    Erection of building comprising a technology-based driving range, pro-shop and trolley storage area; and an enclosed netted structure, following removal of existing timber building (trolley store), practice nets and pro-shop

    Brookmans Park Golf Club, Golf Club Road, Brookmans Park, Hatfield, AL9 7AT

    Received 18 Jan 2021
  10. Decided - Granted6/2015/1938/HOUSE

    Erection of detached flat roofed garden building.

    51B Harmer Green Lane Digswell Welwyn AL6 0AP

    Received 17 Sept 2015
  11. Decided - Granted6/2017/1563/PN8

    Prior approval for the erection of a single storey rear extension measuring 8m in depth, 4m in height and 3.07m to the eaves.

    3 Homewood Lane Northaw Potters Bar EN6 4PP

    Received 17 Jul 2017
  12. Decided - Granted6/2022/0081/HOUSE

    Proposed outdoor swimming pool and re-grading of garden to form patio and amenity space

    23A The Ridgeway Cuffley Potters Bar EN6 4BB

    Received 13 Jan 2022
  13. Decided - Granted6/2021/0982/LAWP

    Certificate of lawfulness for the erection of a conservatory on rear elevation

    4 Junction Cottages Blakemere Road Welwyn Garden City AL8 7PH

    Received 25 Mar 2021
  14. Decided - Granted6/2025/1519/HOUSE

    Erection of garage with pitched slate roof with installation of external entrance gate

    6 Peace Grove Welwyn AL6 0RS

    Received 14 Jul 2025
  15. Decided - GrantedS6/2015/0377/LUP

    Certificate of lawfulness for the erection of a 5m rear extension

    113 Heathcote Avenue Hatfield AL10 0RL

    Received 24 Feb 2015
  16. Decided - GrantedN6/2014/0259/S73A

    Variation of condition 1 (approved plans) and 11 (car parking) of planning permission N6/2012/2190/S73A (for erection of three detached dwellings following the demolition of existing dwelling)

    18 London Road, Welwyn, AL6 9EL

    Received 30 Jan 2014
  17. Decided - Granted6/2023/1042/HOUSE

    Erection of two storey rear, part single storey and part two storey side and front extensions, incorporating new roof structure with raised ridge height and associated alterations

    21 Homewood Avenue Cuffley Potters Bar EN6 4QG

    Received 17 May 2023
  18. Decided - GrantedW6/2009/1875/EM

    REPLACEMENT WINDOWS AND DOORS IN 1960'S SINGLE STOREY REAR EXTENSION

    7 HIGH OAKS ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7BJ

    Received 1 Sept 2009
  19. Decided - Granted6/2024/1125/TPO

    2 x Oaks to reduce back to previous pruning points. Under TPO 24 A3 or TPO640 (2017) G3

    20 Mardley Hill Welwyn AL6 0TS

    Received 17 Jun 2024
  20. DecidedN6/2008/2090/TC

    REDUCE WILLOW TREE AND REDUCE BEECH TREE BY 30%, BOTH TREES IN REAR GARDEN

    7 HIGH GROVE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7DW

    Received 5 Nov 2008
  21. Decided - WithdrawnN6/2014/0404/HH

    Prior approval for the erection of single storey rear extension and dormer windows to front and rear elevations

    21 Great North Road Welwyn Garden City AL8 7TH

    Received 4 Mar 2014
  22. Decided - Granted6/2018/1271/FULL

    Erection of a single storey rear extension

    11 Firs Wood Close, Northaw, Potters Bar, EN6 4BY

    Received 14 May 2018
  23. Decided - Granted6/2024/2077/EM

    Conversion of store/former garage into habitable accommodation, with new windows replacing existing front and rear garage doors and new window on side elevation

    10 Meadow Green Welwyn Garden City AL8 6SS

    Received 28 Oct 2024
  24. Decided - Refused6/2024/1377/HOUSE

    Erection of a part single, part two storey rear extension, part demolition of existing garage, alterations to openings and extension to driveway

    29 Brockswood Lane Welwyn Garden City AL8 7BE

    Received 18 Jul 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

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How to search planning applications

Guides to planning records

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    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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