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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
40,285Searchable applications
321Recorded as pending
86%Approval rate · 33,777 approved or refused records
4,815Refused applications

28,962 approved · 4,815 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2007/1355/FP

    PROPOSED REAR CONSERVATORY

    12 Mimram Place Welwyn AL6 9HQ

    Received 12 Sept 2007
  2. Decided - Refused6/2020/1200/TPO

    Reduce 1 x Oak Tree [T1] by 20% Fell 1 x Oak Tree [T2]

    7 The Drive Welwyn Al6 0TW

    Received 29 May 2020
  3. Decided - Granted6/2019/2756/FULL

    Replacement of existing roof covering, windows and doors and installation of floor standing heat pump and louvres on the rear elevation

    45 Town Centre Hatfield AL10 0JJ

    Received 1 Nov 2019
  4. Decided - Granted6/2020/0642/HOUSE

    Installation of loft conversion with rear dormer and front roof lights

    22 Peregrine Way Hatfield AL10 9UP

    Received 6 Mar 2020
  5. Decided - Granted6/2019/2892/HOUSE

    Erection of single storey rear extension with alterations to openings

    37 Peplins Way Brookmans Park Hatfield AL9 7UR

    Received 18 Nov 2019
  6. Decided - Granted6/2016/1407/TPO

    Removal of Scots Pine tree covered by TPO 141 (1989)

    86 Bell Lane, Brookmans Park, Hatfield, AL9 7AY

    Received 8 Jul 2016
  7. Decided6/2018/2113/TPO

    Reduce Crown 1 x Bay Laurel (T1) and 1 x Sycamore (T2 - twin stemmed) by up to 30% to maintain size and shape - Conservation area

    57 Attimore Road Welwyn Garden City AL8 6LG

    Received 10 Aug 2018
  8. Decided6/2021/1108/TC

    Reduce 1 x Hornbeam tree by 30% covered by conservation area

    16 Pentley Park Welwyn Garden City AL8 7RU

    Received 6 Apr 2021
  9. Decided - Granted6/2023/2428/EMT

    T4110 - Cherry - Located in grounds on boundary - Would like to remove hazardous Deadwood T3 - Cockspur Thorn - Located in grounds on boundary - Low over garden - Would like to remove moderate deadwood and Crown lift to 2.5m secondary growth points T6 - Beech - Located in grounds on boundary - Encroaching onto property - Would like to reduce lateral branches to provide 1-1.5m clearance to property. T7 - Pear - Located in grounds on boundary - Would like to crown reduce to previous pruning points removing up to 2m T9 - Apple - Located in grounds on boundary - Cavity at 1m height, historic pruning wounds - Would like to crown reduce removing up to 2m T10 - Ash - Located in grounds on boundary - Encroaching onto property - Would like to reduce lateral branches by up to 2m to provide clearance to property. T11 - Ash - Located within group on boundary - Asymmetric crown suppressed by Oak - Would like to reduce lateral branches and upper crown to reduce leverage and clear highway as required removing up to 2m. T13 - Hawthorn - Located in grounds on boundary - Would like to reduce to previous pruning points removing up to 2m to clear phone wires T14 - Sycamore - Located in grounds on boundary - Would like to crown reduce removing up to 2m to clear phone lines. T15 - Ash - Located in grounds on boundary - Would like to remove small internal branches to provide clearance for phone wires. T4119 - Pear - Located in Grounds on boundary - Would like to remove moderate deadwood G4118 - Mixed Species Group x 11 - Located in grounds on boundary - Would like to hedge trim/reduce back to boundary roadside Reason - Works are all for general maintenance purposes

    19 Meadow Green Welwyn Garden City AL8 6SS

    Received 4 Dec 2023
  10. Decided - Granted6/2025/0592/EM

    Extension of existing single storey extension to the side and widening of existing hard standing

    13 Dellcott Close Welwyn Garden City AL8 7BB

    Received 27 Mar 2025
  11. Decided6/2017/2906/TPO

    Remove Larch tree (H1) and Spruce Fir tree (H2) reduce beech tree (H3) by 50% plus remove dead Cherry tree (H4) - Conservation area

    11 The Green Welwyn AL6 9EA

    Received 15 Dec 2017
  12. Decided - RefusedN6/2014/1792/LUP

    Certificate of lawfulness for erection of two storey rear extension

    Green Brow, Waterend Lane, Ayot St Peter, Welwyn, AL6 9BB

    Received 8 Aug 2014
  13. Decided - GrantedN6/2014/1727/HH

    Prior approval for a single storey rear extension

    149 Blythway, Welwyn Garden City, AL7 1DS

    Received 1 Aug 2014
  14. Decided - Granted6/2016/0786/EM

    Formation of hardstanding

    21 Ingles, Welwyn Garden City, AL8 7HE

    Received 20 Apr 2016
  15. Decided - Granted6/2017/2505/PN8

    Prior approval for the erection of a single storey rear extension measuring 4.5m in depth, 2.85m in height and 2.775m to the eaves

    248 Daniells Welwyn Garden City AL7 1QE

    Received 24 Oct 2017
  16. Decided - GrantedW6/2007/0371/EM

    ERECTION OF TWO STOREY REAR EXTENSION

    25 Mandeville Rise, Welwyn Garden City, AL8 7JT

    Received 6 Mar 2007
  17. Decided6/2024/1584/TC

    1 x Silver birch to reduce by 2m in height and 1m in width. To maintain size and height of tree as growing too big for area near to house

    5 The Valley Green Welwyn Garden City AL8 7DQ

    Received 21 Aug 2024
  18. Decided - Granted6/2026/0979/COND

    Submission of details pursuant to condition 1 (construction methodology) on planning permission 6/2025/0434/FULL

    Marlborough Court Green Close Brookmans Park AL9 7ST

    Received 3 Jun 2026
  19. Decided - Withdrawn6/2018/1605/EM

    Replacement of all existing windows

    145 Parkway Welwyn Garden City AL8 6JB

    Received 18 Jun 2018
  20. Decided - RefusedN6/2008/1152/FP

    ERECTION OF TWO STOREY SIDE EXTENSION AND SINGLE STOREY REAR EXTENSION

    1 REDDINGS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LA

    Received 5 Jul 2008
  21. Decided - Granted6/2022/0988/EMT

    T1 - Cherry - To remove the dead top approx. 2 metres and reduce rest by approx. 1 metre all round.

    17 Dellcott Close Welwyn Garden City AL8 7BB

    Received 26 Apr 2022
  22. Decided - GrantedS6/2004/1027/FP

    ERECTION OF REAR CONSERVATORY

    168 Dragon Road Hatfield AL10 9NZ

    Received 6 Jul 2004
  23. Decided - RefusedS6/2010/0184/FP

    DEMOLITION OF EXISTING SCREEN WALL, ERECTION OF SINGLE STOREY SIDE EXTENSION, PART SINGLE PART TWO STOREY FRONT EXTENSION TO INCLUDE INTEGRAL DOUBLE GARAGE, ROOF TERRACE AND ACCOMMODATION WITHIN ROOF SPACE. ALTERATIONS TO LAYOUT OF EXISTING DRIVEWAY.

    NORTHACRE, WELL ROAD, NORTHAW, POTTERS BAR, HERTFORDSHIRE, EN6 4BP

    Received 2 Feb 2010
  24. Decided - Refused6/2021/2934/HOUSE

    Erection of a part two storey front and part side extension

    21E Canonsfield Welwyn AL6 0QB

    Received 12 Oct 2021

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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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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