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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
27,453Searchable applications
308Recorded as pending
86%Approval rate · 22,632 approved or refused records
3,063Refused applications

19,569 approved · 3,063 refused · 1,472 withdrawn. Received dates in our records: 5 Jan 2005 to 13 Oct 2026. Most recent record check: 16 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2016/0216/PN8

    Prior approval for single storey rear extension measuring 4.5m. deep, 3.58m. high and 2.4m. to the eaves

    9 Wolves Mere Woolmer Green Knebworth SG3 6JW

    Received 8 Feb 2016
  2. Decided - Granted6/2022/1330/VAR

    Variation of condition 1 (materials) on planning permission 6/2020/0405/HOUSE

    59 Digswell Park Road Welwyn Garden City AL8 7NW

    Received 9 Jun 2022
  3. Decided - Granted6/2021/1150/EMT

    1 x Sycamore - fell

    48 Valley Road Welwyn Garden City AL8 7DN

    Received 8 Apr 2021
  4. Decided - Granted6/2018/2406/EM

    Conversion of existing store room into a habitable room with external alterations including raising flat roof height and installation of window to front elevation

    36 Woodland Rise Welwyn Garden City AL8 7LF

    Received 19 Sept 2018
  5. Decided - Granted6/2023/2334/LAWP

    Certificate of lawfulness for the conversion of existing store, insulation and fitting of new bathroom, installation of 2 timber windows to match existing fenestration

    West Low Lodge Holwell Lane Essendon Hatfield AL9 5RF

    Received 20 Nov 2023
  6. Decided - Granted6/2025/2509/HOUSE

    Erection of a first floor side extension; replacement of existing gates and installation of new railing on the front boundary wall; front landscaping; new rear raised patio and covered bbq area; replacement of roof tiles; alterations to fenestration; chimney removal; internal alterations

    45 Pine Grove Brookmans Park AL9 7BL

    Received 3 Dec 2025
  7. Decided - Granted6/2025/1554/FULL

    Creation of outside bike storage space and bin store and associated landscaping

    Goldings House Welwyn Hatfield Foyer Goldings Crescent Hatfield AL10 8TZ

    Received 18 Jul 2025
  8. Decided - Granted6/2019/1029/HOUSE

    Erection of a single storey rear extension to replace existing conservatory

    28 Mosquito Way Hatfield AL10 9AZ

    Received 29 Apr 2019
  9. Decided - Granted6/2021/2453/HOUSE

    Erection of a single storey rear extension following the demolition of existing conservatory

    120 Thistle Grove Welwyn Garden City AL7 4AQ

    Received 23 Aug 2021
  10. Decided - Granted6/2019/1982/EM

    Erection of a two storey rear extension

    11 Russellcroft Road Welwyn Garden City AL8 6QY

    Received 9 Aug 2019
  11. Decided - Granted6/2017/1037/HOUSE

    Raise existing flat roof of garage by 375mm to increase headroom for conversion to habitable space.

    18 Uplands Welwyn Garden City AL8 7EW

    Received 15 May 2017
  12. Decided - Withdrawn6/2021/2752/VAR

    Variation of condition 18 (revised layout) on planning permission 6/2019/2782/VAR

    Plot 6000 Land adjacent to the Porsche Garage Hatfield House Hatfield Business Park Hatfield AL10 9UA

    Received 22 Sept 2021
  13. Decided - Granted6/2017/1735/EM

    Erection of pergola in rear garden

    11 Russellcroft Road Welwyn Garden City AL8 6QY

    Received 7 Aug 2017
  14. Decided - Granted6/2021/3184/EM

    Erection of a single storey rear extension involving demolition of existing rear conservatory, alterations to fenestrations and canopy area

    36 Elm Gardens Welwyn Garden City AL8 6RY

    Received 8 Nov 2021
  15. Decided - Refused6/2021/2202/HOUSE

    Remodelling of existing dwelling to include erection of a two storey front extension, garage conversion, porch, part two storey part single storey rear extension, alterations to roof including raising the ridge, insertion of two rear dormers and replacement front dormer

    19 Bradgate Cuffley Potters Bar EN6 4RW

    Received 21 Jul 2021
  16. Decided - Granted6/2018/0463/HOUSE

    Erection of a single storey rear extension

    12 Moorend Welwyn Garden City AL7 4QL

    Received 15 Feb 2018
  17. Decided - GrantedN6/2014/0135/FP

    Change of use of land to residential and erection of new boundary fence

    49 Dalewood, Welwyn Garden City, AL7 2JP

    Received 13 Jan 2014
  18. Decided - Granted6/2019/1300/COND

    Submission of details pursuant to condition 2 (sample of materials) on planning permission 6/2018/3140/FULL

    Guessens 6 Codicote Road Welwyn AL6 9NB

    Received 3 Jun 2019
  19. Decided - GrantedS6/2014/1680/FP

    Erection of single storey side and rear extensions, hip to gable extension and installation of rear dormer and front rooflights

    8 Swanland Road, North Mymms, Hatfield, AL9 7TG

    Received 25 Jul 2014
  20. Decided - Withdrawn6/2015/1975/EM

    Removal of Dead Chestnut tree

    32 Guessens Road Welwyn Garden City AL8 6RA

    Received 22 Sept 2015
  21. Decided - Granted6/2018/1455/LAWP

    Certificate of lawfulness for erection of a front porch

    84 High Dells Hatfield AL10 9HU

    Received 29 May 2018
  22. Decided - GrantedN6/2014/0717/TC

    Reduce Oak tree crown by 30%

    Land at, 4 & 6 Mandeville Rise, Welwyn Garden City, AL8 7JU

    Received 10 Mar 2014
  23. Decided - Granted6/2020/2474/EMH

    Erection of single storey rear extension and extension of existing patio area following demolition of existing rear conservatory and detached outbuilding.

    23 Dellcott Close Welwyn Garden City AL8 7BB

    Received 28 Sept 2020
  24. Decided - Granted6/2020/0059/HOUSE

    Erection of single storey, part two storey rear extension and Installation of windows to existing side and rear elevations. Raising of existing outbuilding's roof to facilitate the upgrading/conversion of outbuilding into habitable space.

    39 Fordwich Road Welwyn Garden City AL8 6EY

    Received 13 Jan 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

  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

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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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    Published Updated

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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