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

40,297Searchable applications

283Recorded as pending

86%Approval rate · 33,821 approved or refused records

4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 9 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 Counts reflect the last collected status; some records may be out of date.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 building Local plan Our Local Plan Pre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation Area Article 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

Decided - Granted6/2025/0756/HOUSE
Two storey front extension and alterations to front elevation
63 Warren Way Digswell Welwyn AL6 0DL
Received 22 Apr 2025
Decided - Granted6/2024/0875/FULL
Installation of Extraction/Ventilation System
9 Harpsfield Broadway Hatfield AL10 9TF
Received 9 May 2024
Decided - Granted6/2019/3248/COND
Submission of details pursuant to condition 2 (archaeological written scheme of investigation) on planning permission 6/2019/1988/HOUSE
1 Rollswood Road Welwyn AL6 9TX
Received 24 Dec 2019
Decided - Granted6/2025/0299/EMT
1 x Western red cedar reduce 4m in height and 1m in width.
118 Ingles Welwyn Garden City AL8 7HG
Received 18 Feb 2025
Decided - Refused6/2018/0257/HOUSE
Demolition of the existing chimney. Conversion of garage into habitable accommodation. Relocation of front door. Alterations to existing windows and doors. Replacement of windows. Erection of a single storey rear extension. Reconstruction, enlargement and conversion of loft accommodation to habitable accommodation. Construction of two front dormer windows and front gable wing. Construction of two rear dormer windows with Juliette balconies. Installation of rooflight. Construction of open basement (lower ground floor). Construction of patio area with steps and glazed balustrade around patio. Construction of parking area to front garden.
24 Heathbrow Road Welwyn 6AL 0QG
Received 25 Jan 2018
Decided - Granted6/2017/2303/LAWP
Certificate of Lawfulness for the erection of single storey rear extension
4 Peartree Court Welwyn Garden City AL7 3XN
Received 9 Oct 2017
Decided - Granted6/2022/2731/FULL
Excavation of existing embankment and construction of a retaining wall, removal of a multi stemmed Ash Tree and trimming of a multi stemmed dogwood tree
15 Church Street Hatfield AL9 5AR
Received 1 Dec 2022
Decided - GrantedS6/2007/0277/FP
ERECTION OF SINGLE STOREY SIDE EXTENSION AND TWO STOREY REAR EXTENSION
Roe Green Cottage Ellenbrook Lane Hatfield Hatfield AL10 9NS
Received 20 Feb 2007
Decided - Granted6/2025/1215/EM
Conversion of a house into a children's home. Garage conversion into a habitable room with window and reduction in width of 1x ground floor rear window
80 Digswell Park Road Welwyn Garden City AL8 7NS
Received 17 Jun 2025
Decided - Granted6/2019/2500/EM
Installation of a side gate
145 Parkway Welwyn Garden City AL8 6JB
Received 6 Oct 2019
Decided - Granted6/2023/1629/EM
Erection of a first floor rear extension
64 Brockswood Lane, Welwyn Garden City, AL8 7BQ
Received 7 Aug 2023
Appeal Decided - DismissedS6/2008/0223/FP
LOFT CONVERSION INCORPORATING SIDE AND REAR DORMER WINDOWS
Brandram Great North Road Hatfield AL9 6DA
Received 6 Feb 2008
Decided - Refused6/2018/2412/LAWP
Certificate of lawfulness for the 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
Decided - Granted6/2021/2120/HOUSE
Demolition of conservatory and erection of single storey rear extension with internal alterations
15 Mount Pleasant Close Hatfield AL9 5BZ
Received 14 Jul 2021
Decided - Granted6/2016/2266/TPO
Reduce Willow tree by 1.5m, lift lower limbs from 3 Conifer trees by 3ft and trim by 6inches, reduce Holly and Yew trees by 6inches and further Holly tree by 1m plus removal of limb from Ash tree - Conservation Area
45 Digswell Rise Welwyn Garden City AL8 7PP
Received 17 Oct 2016
Decided - GrantedS6/2014/1832/FP
Erection of ground floor rear extension and change of materials for entire property from render to red brick.
Oak House, 5A Oak Lane, Cuffley, Potters Bar, EN6 4JZ
Received 14 Aug 2014
Decided - Granted6/2022/0866/FULL
Change of use from public house (A4) to three residential dwellings (C3) and erection of six dwellings
The Hope And Anchor 2 Station Road Welham Green Hatfield AL9 7PJ
Received 11 Apr 2022
Decided - GrantedS6/2007/1589/FP
CONVERSION OF GARAGE TO FORM HABITABLE ACCOMMODATION.
19 Great Braitch Lane Hatfield AL10 9FD
Received 24 Oct 2007
Decided - Granted6/2021/3367/MAJ
Erection of 1 x 3 storey building comprising of 14 x dwellings with associated ancillary spaces, landscaping work, car and cycle parking, and alterations to existing access, involving demolition of existing 8 unit flat building
Ludwick Green, Ludwick Way, Welwyn Garden City AL7 3QN
Received 29 Nov 2021
Decided - Split6/2016/0678/COND
Approval of details reserved by condition 4 (doors, fire screen, ramp, partitions, ducts bin screen wall and vents) on listed building consent 6/2015/2310/LB
29 High Street, Welwyn, AL6 9EE
Received 8 Apr 2016
Decided - GrantedN6/2007/0939/FP
ERECTION OF A SINGLE STOREY SIDE & FRONT EXTENSION
18 Station Road Digswell Welwyn AL6 0DG
Received 20 Jun 2007
Decided - Granted6/2018/1623/HOUSE
Erection of a porch to the front of the property -Retrospective
99 Haymeads Welwyn Garden City AL8 7AD
Received 19 Jun 2018
Decided - Granted6/2020/0747/HOUSE
Erection of a two storey side extension
1 Hanyards End Cuffley EN6 4EN
Received 19 Mar 2020
Decided - Refused6/2023/2375/LAWP
Certificate of lawfulness to change porch flat roof to pitched roof with gable end
27 High Dells Hatfield AL10 9JD
Received 27 Nov 2023

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

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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Published 16 Jul 2026Updated 13 Sept 2026
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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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Published 6 Aug 2026Updated 13 Sept 2026
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 13 Aug 2026Updated 13 Sept 2026

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.

Check collection coverage