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

40,000Searchable applications

298Recorded as pending

86%Approval rate · 33,543 approved or refused records

4,791Refused applications

28,752 approved · 4,791 refused · 2,198 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 29 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 Counts reflect the last collected status; some records may be out of date.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 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 - RefusedN6/2014/0775/FP
Erection of front wall and gates following removal of existing fence
54 New Road Digswell Welwyn AL6 0AH
Received 11 Apr 2014
Decided - Granted6/2018/0611/HOUSE
Erection of a single storey rear extension and replacement of garage door with a front window to facilitate conversion of garage into habitable room
62 Herns Lane Welwyn Garden City AL7 2AH
Received 5 Mar 2018
Decided - Refused6/2021/0915/LAWP
Certificate of lawfulness for the erection of a loft conversion consisting of a rear dormer and front velux windows
25 Daisy Drive Hatfield AL10 9FR
Received 22 Mar 2021
Decided - Granted6/2023/1303/EM
Erection of a two story side extension and single storey rear extension
18 Camfield Welwyn Garden City AL7 4ED
Received 21 Jun 2023
Decided - Granted6/2024/1920/HOUSE
Erection of a single storey rear and side extension, alterations to openings
78 Bishops Rise Hatfield A10 9HH
Received 8 Oct 2024
Decided - Granted6/2024/0312/HOUSE
Erection of a single storey rear extension
45 Mount Pleasant Lane Hatfield AL9 5BX
Received 16 Feb 2024
Decided - Refused6/2016/2305/HOUSE
Erection of a single storey front extension, single storey rear extension, first floor front extension, part single storey side roof enlargement/part first floor front and side extension and alteration to roof
10 Thrush Lane Cuffley Potters Bar EN6 4JU
Received 3 Nov 2016
Decided - Granted6/2022/0414/COND
Submission of details pursuant to condition 3 (samples of materials) on planning permission 6/2021/1612/VAR
The District Cemetery South Way Hatfield AL10 8HS
Received 22 Feb 2022
Decided - GrantedN6/2009/2151/TE
REMOVAL OF FALSE ACACIA TREE LOCATED IN FRONT GARDEN
290 KNIGHTSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7NQ
Received 1 Oct 2009
Decided - GrantedN6/2007/0929/FP
ERECTION OF REAR CONSERVATORY
10 Robin Mead Welwyn Garden City AL7 1PP
Received 22 Jun 2007
Decided - Granted6/2020/2873/EMT
Reduction of two oak trees Width from 14.2m to 12m, height from 12.4m to 11m.
81 Woodhall Lane Welwyn Garden City AL7 3TH
Received 3 Nov 2020
Decided - Refused6/2024/1150/HOUSE
Conversion of existing barn to form an annexe to the main dwelling
Upper Cromer Hyde Farm Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE
Received 20 Jun 2024
Decided - Granted6/2021/2770/HOUSE
Erection of a single storey rear extension
21 Heronfield Little Heath Potters Bar EN6 1JA
Received 27 Sept 2021
Decided - GrantedS6/2004/1596/FP
ERECTION OF SIDE, FRONT, REAR EXTENSIONS AND DETACHED GARAGE
1 Church Close Cuffley Potters Bar EN6 4LS
Received 27 Oct 2004
Decided - Granted6/2018/0043/FULL
Conversion of existing garage to an independent residential dwelling unit including the insertion of 3 x rear dormer windows, new windows and doors and alterations and erection of single attached garage.
Maran House 56 Hertford Road Digswell Welwyn AL6 0BX
Received 5 Jan 2018
Decided - RefusedS6/2009/2554/LB
REMOVAL OF INTERNAL WALLS
FORMER GATEHOUSE, COMET WAY, HATFIELD, HERTFORDSHIRE, AL10 9TL
Received 20 Nov 2009
Decided - Withdrawn6/2020/0974/PN8
Prior approval for the erection of a single storey rear extension measuring 6 metres in depth, 3 metres in height and 3 metres to the eaves
76 College Lane Hatfield AL10 9PQ
Received 29 Apr 2020
Decided - Granted6/2021/2021/HOUSE
Erection of a front porch infill extension and installation of front window to facilitate garage conversion.
11 Gresley Close Welwyn Garden City AL8 7QA
Received 2 Jul 2021
Decided - GrantedW6/2009/1756/EM
ERECTION OF SINGLE STOREY REAR EXTENSION
122 HALDENS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1DG
Received 12 Aug 2009
Decided - GrantedS6/2008/0022/FP
ERECTION OF TWO STOREY AND SINGLE STOREY FRONT AND REAR EXTENSIONS, SINGLE STOREY SIDE EXTENSIONS AND ROOF ALTERATIONS
170 TOLMERS ROAD, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4JP
Received 7 Jan 2008
Decided - RefusedN6/2005/1281/TP
WORK TO TREE T2 (OAK) COVERED BY TPO 302.
22 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 10 Oct 2005
Decided - GrantedS6/2013/1545/DS
Discharge of conditions 3 (hard and soft landscaping), 4 (materials) 5 (external lighting) of planning permission S6/2013/0477/FP
Cucumber Hall Barns, Cucumber Lane, Essendon, Hatfield, AL9 6JB
Received 9 Jul 2013
Decided - GrantedW6/2013/0820/EM
Demolition of rear conservatory and erection of single storey rear extension
6 Applecroft Road, WELWYN GARDEN CITY, AL8 6LA
Received 15 Apr 2013
DecidedN6/2008/2008/TE
REDUCE PRUNUS TREE IN REAR GARDEN BY 33%, REDUCE SYCAMORE TREE IN FRONT GARDEN BY 33%.
19 ELMWOOD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6LD
Received 22 Oct 2008

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.
UK research
Published 16 Jul 2026Updated 13 Sept 2026
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.
UK research
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.
UK research
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