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

32,337Searchable applications

303Recorded as pending

87%Approval rate · 27,046 approved or refused records

3,541Refused applications

23,505 approved · 3,541 refused · 1,699 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 20 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2024/2397/TPO
Lime Tree (T1) - repollard, removing 4m of growth back to previous pollard points. to reduce weight on side closest to the house, create more space between the tree next door and allow more light into the garden (TPO 1051 (2023) G3)
6 Welwyn Hall Gardens Welwyn AL6 9LF
Received 18 Dec 2024
Decided - Granted6/2016/0681/EM
Removal of Ash tree
11 Farm Close, Welwyn Garden City, AL8 6RP
Received 30 Mar 2016
Decided - GrantedW6/2014/2278/EM
Retention of Summerhouse
48 Attimore Road, Welwyn Garden City, AL8 6LP
Received 16 Oct 2014
Decided - Granted6/2020/1197/EMT
1 x Lime Tree to crown clean and remove deadwood, reduce lower limbs
76 Parkway Welwyn Garden City AL8 6HH
Received 28 May 2020
Decided - Granted6/2021/3024/EMT
Front group of Hornbeam and Cotoneaster by front door to reduce by approximately 1.5m height & width.
76 Sweet Briar, Welwyn Garden City, AL7 3EA
Received 21 Oct 2021
Decided - RefusedN6/2014/2238/NM
Non material amendment following approval of planning permission N6/2013/2123/FP - Additional window to two storey extension plus amendment to roof windows
1 Reddings Welwyn Garden City AL8 7LA
Received 10 Oct 2014
Decided - GrantedS6/2013/2533/NM
Non material amendment following approval of planning permission S6/2013/0687/FP - Relocation of downstairs cloakroom, window and door types changed and minor adjustments to bathroom layouts and kitchen in relation to design development
Langate, Tylers Causeway, Newgate Street, HERTFORD, SG13 8QN
Received 28 Nov 2013
Decided - GrantedN6/2013/1701/TC
Reduce Oak tree back to 25%, reduce by upto 5 metres and remove damaged branches from Oak, prune Beech, Cherry and Hazel tree by upto 20%
2 Roundwood Drive, Welwyn Garden City, AL8 7JZ
Received 2 Aug 2013
Decided - Refused6/2023/1671/FULL
Erection of 3 apartments following demolition of the existing detached dwelling
26 Tolmers Gardens Cuffley Potters Bar EN6 4JE
Received 10 Aug 2023
Decided - Granted6/2023/0800/FULL
Construction of a new dwelling with associated landscaping and access.
106 Harmer Green Lane Digswell Welwyn AL6 0ET
Received 13 Apr 2023
Decided - Granted6/2026/1088/LB
Erection of a single storey rear extension, single storey side extension and internal alterations following the demolition of an existing detached shed and an attached W.C.
47 Dixons Hill Close Welham Green Hatfield AL9 7EF
Received 23 Jun 2026
Appeal Decided - Dismissed6/2020/1919/FULL
Erection of new dwelling to include replacement garage for donor property.
3 Hangmans Lane Welwyn AL6 0TJ
Received 4 Aug 2020
Decided - Refused6/2023/2524/PIP
Residential development for up to 4 residential units
Lodge Farm Harmer Green Lane Burnham Green AL6 0ET
Received 19 Dec 2023
Decided - Granted6/2021/0059/HOUSE
Erection of a one and a half storey lean-to-rear extension following the removal of the existing single storey conservatory, alterations to the 19th century lean-to extension including re-rendering in lime/repairs, insulation to walls and removing slates, repairs where needed, insulation, replacement of slate finish, raising the height to add over rafter insulation and extending the C19 chimney stack, relocation of the C19 window to the ground floor lobby and store, insertion of posts and foundation pad in the C19 store and an underpinning plinth if required.
58 Hertford Road Digswell Welwyn AL6 0BX
Received 11 Jan 2021
Decided - Granted6/2016/1103/FULL
Erection of 1no four bedroom dwellinghouse following demolition of existing dwellinghouse
11 Sunnyfield, Hatfield, AL9 5DX
Received 3 Jun 2016
Decided - Granted6/2020/1159/COND
Submission of details pursuant to condition 9 (provision of appropriate footway) on planning permission 6/2019/0857/MAJ
Stanborough Park North Stanborough Road Welwyn Garden City AL8 6DF
Received 21 May 2020
Decided - GrantedN6/2014/1913/FP
Erection of single storey rear extension
150 Longcroft Lane, Welwyn Garden City, AL8 6EN
Received 28 Aug 2014
Decided - Refused6/2025/1525/HOUSE
Erection of two storey side and rear extension, and rear garden shed and the formation of a vehicular access to the highway
10 Lancaster Way Welwyn AL6 9LD
Received 16 Jul 2025
Decided6/2025/1718/TC
Fell 1 x apple tree
105 Handside Lane Welwyn Garden City AL8 6SP
Received 12 Aug 2025
Decided - Granted6/2023/0627/VAR
Variation of condition 12 (drawing numbers) on planning approval 6/2020/3226/PN32
Sylvia Adams House 24 The Common Hatfield AL10 0NB
Received 21 Mar 2023
Decided - Granted6/2020/0468/HOUSE
Erection of two bay car port
Hatfield Lodge, Newgate Street, Hertford, SG13 8NH
Received 18 Feb 2020
Decided - GrantedN6/2013/1759/AD
Installation of two illuminated letter signs, one illuminated projecting sign, two internally illuminated board signs, one non-illuminated board sign and one lantern with curved bracket
The Two Willows, Howardsgate, Welwyn Garden City, AL8 6AW
Received 15 Aug 2013
Decided - GrantedN6/2015/1318/HH
Prior approval for a single storey rear extension
14 Brocket Road Welwyn Garden City AL8 7TY
Received 22 Jun 2015
Decided - Split6/2023/1354/COND
Submission of details pursuant to conditions 1 (Contamination), 2 (Footway crossovers and dropped kerbs), 3 (Construction Management Plan), 4 (Drainage), 5 (Materials), 6 (Fence height), 7 (Noise Impact), 8a (Accessible and adaptable housing), 9 (Biodiversity), 10 (Energy and sustainability), 11 (Cycle provision, refuse and recycling), 16 (External lighting), 17 (Bollards for car parking) and 20 (Parking allocation) on planning permission 6/2021/0456/MAJ
71 Station Road Cuffley EN6 4HG
Received 29 Jun 2023

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.
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