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

40,146Searchable applications

300Recorded as pending

86%Approval rate · 33,676 approved or refused records

4,802Refused applications

28,874 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 2 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/2020/HOUSE
Proposed garage conversion with alterations to the fenestration and insertion of rooflights to the side elevation roof slopes
60 The Meadway Cuffley Potters Bar EN6 4ES
Received 21 Oct 2024
Decided - Refused6/2018/1729/HOUSE
Erection of part single, part two storey side extension and external alterations
151 Harwood Hill Welwyn Garden City AL8 7AF
Received 29 Jun 2018
Decided - Granted6/2025/0080/TPO
Cedar height 15m spread 9m, 0.5m reduction and a 20% thinning throughout Tree has a Westerly lean towards the house TPO189 T13
6 Tolmers Mews Newgate Street Hertford SG13 8RG
Received 20 Jan 2025
Decided - Granted6/2020/0251/COND
Submission of details pursuant to condition 1 (Construction Method Statement) on planning permission 6/2019/1382/FULL
Entech House London Road Woolmer Green SG3 6JR
Received 29 Jan 2020
Decided - Refused6/2016/2118/LAWP
Certificate of lawfulness for a proposed change of use to a paint application shop (B2) as well as the installation of a flue
Unit 1 6 Southfield Welwyn Garden City AL7 4ST
Received 11 Oct 2016
Decided - Granted6/2024/2449/COND
Submission of details pursuant to condition number 1 (Drawings of windows) on planning permission 6/2024/0318/LB
69 The Ryde Hatfield AL9 5DN
Received 31 Dec 2024
Decided - RefusedN6/2006/0517/FP
ERECTION OF FIRST FLOOR SIDE EXTENSION
14 Lumbards Welwyn Garden City AL7 1PQ
Received 24 Apr 2006
Decided - Refused6/2018/1479/FULL
Erection of two storey side extensions, two storey and one and a half storey rear extensions, following demolition of existing rear extensions; installation of 4No rear dormers and replacement of 3No front porches.
1-3 Lower Woodside Cottages, Woodside Lane, Hatfield, AL9 6DQ
Received 4 Jun 2018
Decided - Granted6/2020/1365/FULL
Erection of a 5-bedroom detached dwelling including formation of new vehicular crossover
34 Vineyards Road Northaw Potters Bar EN6 4PA
Received 15 Jun 2020
Decided - Granted6/2023/1594/HOUSE
Erection of part single and part two storey rear extension, single storey front extension, including porch canopy to side, following removal of existing canopy and alterations to window openings to side and front elevations
19 Birchall Wood Welwyn Garden City AL7 2HL
Received 1 Aug 2023
Decided - Granted6/2018/1159/EM
Erection of single storey party wall
1 Rayfield Welwyn Garden City AL8 7HR
Received 1 May 2018
Decided - GrantedS6/2014/2383/FP
Erection of single storey rear extension
11 Heathcote Avenue Hatfield AL10 0RQ
Received 28 Oct 2014
Decided - Granted6/2025/2213/PN8
Prior approval for the erection of single storey rear extensions measuring 8.00m in depth and single storey side extension
23 The Ridgeway Cuffley Potters Bar EN6 4BB
Received 20 Oct 2025
Decided - Granted6/2015/2306/EM
Reduce Cherry tree by up to 30%.
106 Oakdale, Welwyn Garden City, AL8 7QX
Received 13 Nov 2015
Decided - Granted6/2016/0205/VAR
Variation of condition 1 (drawings) on planning permission N6/2015/1145/FP and condition 5 (drawings) on Estate Management consent W6/2015/1420/EM
351 Knightsfield, Welwyn Garden City, AL8 7NB
Received 8 Feb 2016
Decided - RefusedS6/2015/0123/LUP
Certificate of lawfulness for proposed erection of a single storey rear extension
23 Manor Road, Hatfield, AL10 9LJ
Received 21 Jan 2015
Decided - Granted6/2026/0340/LAWE
Certificate of Lawfulness for the existing single-storey rear extension
Sky Tylers Causeway Newgate Street Hertford SG13 8QN
Received 24 Feb 2026
Decided - Granted6/2018/0243/TPO
Reduce and shape 1 x Oak tree (T1) by 20 % or back to old pruning points, 1 x Oak tree (T2) by 30 % or back to old pruning points and 1 x Hornbeam tree (T3) by 1/3 or 35 % covered by TPO 55
10 Bracken Lane Welwyn AL6 0RB
Received 18 Jan 2018
Decided6/2023/1876/EIA
Request for a screening opinion to determine whether an Environmental Statement is required
Land East of A6129 Stanborough Hatfield AL8 7TB
Received 29 Aug 2023
Decided - Granted6/2022/2924/ADV
Installation of internally illuminated folded aluminium panels fascia and projecting non-illuminated folded aluminium sign
86 Town Centre Hatfield Hertfordshire AL10 0JP
Received 30 Dec 2022
Decided - Granted6/2020/0274/FULL
Erection of 1x dwelling following demolition of existing storage building (Class B8)
Cuffley Hills Barn, The Ridgeway, Cuffley, EN6 4AY
Received 30 Jan 2020
Decided - GrantedN6/2013/1555/TP
Reduce hornbeam T1 & T2 to previous pruning points, equating to approximately 1.5-2m in height and reduce cherry by 30% which equates to 2.5-3m in height, leaving all lateral growth within lower crown, covered by TPO 60
10 Bluebells Welwyn AL6 0XD
Received 19 Jul 2013
Decided - Granted6/2017/1442/HOUSE
Erection of two storey and single storey rear extensions
9 Corn Mead Welwyn Garden City AL8 7QR
Received 3 Jul 2017
Decided - Granted6/2016/1387/HOUSE
Front extension to garage
90 Brookmans Avenue, Brookmans Park, Hatfield, AL9 7QQ
Received 8 Jul 2016

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