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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 8 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/0790/HOUSE
Erection of acoustic barrier
7B Hall Grove Welwyn Garden City AL7 4PJ
Received 2 Apr 2019
Decided - Granted6/2015/2407/HOUSE
Erection of single storey front garage extension, garage conversion, single storey and two storey rear extension
2 Lytton Gardens, Welwyn Garden City, AL8 6EG
Received 2 Dec 2015
Decided - Granted6/2017/1514/LAWP
Certificate of lawfulness for erection of front porch, installation of windows to side elevations and conversion of garage to habitable space
48 Woods Avenue Hatfield AL10 8NA
Received 12 Jul 2017
Decided - Granted6/2018/2072/FULL
Alterations to two vehicular accesses to site, new footpath path and car park resurfacing
Welwyn Evangelical Church Fulling Mill Lane Welwyn AL6 9NH
Received 9 Aug 2018
Decided - Granted6/2021/2902/EM
Demolition of outbuilding to facilitate the erection of a single storey rear extension
51 Crossway Welwyn Garden City AL8 7ED
Received 8 Oct 2021
Decided - Refused6/2019/2984/PN8
Prior approval for the erection of single storey rear extension measuring at 6m in depth, 3.5m in height and 3.5m to the eaves
167 Knella Road Welwyn Garden City AL7 3NT
Received 27 Nov 2019
Decided - Granted6/2020/0162/HOUSE
Erection of two storey side extension and alterations to openings
11 Harwood Hill Welwyn Garden City AL8 7AA
Received 23 Jan 2020
Decided - RefusedW6/2014/1496/EM
Erection of single storey and two storey side extension
10 High Grove, Welwyn Garden City, AL8 7DW
Received 4 Jul 2014
Decided6/2023/1392/TC
4 x limes to re pollard back to previous pruning points. (2nd from left to reduce past pruning point by further 1m) 2 x Cherry Plum to reduce back to previous pruning points 1 x Oak to reduce by around 1.2m height & 1m width
12 Guessens Road Welwyn Garden City AL8 6QR
Received 4 Jul 2023
Decided - Refused6/2020/1989/PN8
Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.10m in height and 3m to the eaves.
89 Lemsford Road Hatfield AL10 0DZ
Received 28 Jul 2020
Decided - GrantedW6/2013/2067/EM
Formation of hardstanding and associated landscaping to front garden
5 Valley Road, Welwyn Garden City, AL8 7DG
Received 23 Sept 2013
Decided - GrantedW6/2009/1636/EM
ERECTION OF SINGLE STOREY REAR EXTENSION
11 UPPER SHOT, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1RP
Received 30 Jul 2009
Decided - Granted6/2026/1466/HOUSE
Erection of two storey side extension, part single/two storey rear extension, insertion of two front dormer windows and front porch following the demolition of existing single storey rear extension and detached garage
36 Warren Way Digswell Welwyn AL6 0DN
Received 19 Aug 2026
Decided - GrantedS6/2014/1039/LUP
Certificate of lawfulness for alterations to existing building to include demolition of existing entrance structure and replacement with new glazed structure, enlargement, removal, formation of new window and door openings and renewal of all windows. Subsequent remedial re-plastering of some external walls plus internal alterations
Lakewood House, Woodhill, Kentish Lane, Brookmans Park, Hatfield, AL9 6EE
Received 12 May 2014
Decided - Granted6/2018/0343/COND
Submission of details pursuant to condition 1 (materials samples) on planning permission 6/2017/0400/FULL, dated 13/11/2017
1-7 Howardsgate Welwyn Garden City AL8 8AL
Received 2 Feb 2018
Decided - Granted6/2020/1625/HOUSE
Installation of window to facilitate conversion of garage, replacement of utility door with window, demolition of interior bathroom walls to create open plan room, removal of suspended ceiling, and installation of roof lights
33 School Lane Welwyn AL6 9PQ
Received 7 Jul 2020
Decided - Granted6/2026/1300/EMT
G1 - 2 x Beech and 3 x Hornbeams all hanging low over the footpath and road. Crown lift to 4m. T2 - Hornbeam growing very close to the building and low over the drive. To reduce back on building side by 1.5m and crown lift over the road to 4m.
1 Perrywood Walden Road Welwyn Garden City AL8 7PZ
Received 23 Jul 2026
Appeal Decided - DismissedN6/2015/1253/FP
Erection of one 3 bedroom dwelling with amenity and parking and external alterations to No19
19 Mimram Road Welwyn AL6 9HA
Received 16 Jun 2015
Decided - GrantedS6/2013/1039/NM
Non material amendment following approval of planning permission S6/2006/0888/FP - Remove covered balcony element of the original plans and include juliet balconyto rear with full lenght window to side
117 Newgate Street Village, HERTFORD, SG13 8QR
Received 20 May 2013
Decided - Granted6/2019/1170/COND
Submission of details pursuant to condition 7(Construction Environmental Management Plan (Biodiversity), Traffic management plan, Build Route Plan )on planning permission 6/2017/0848/MAJ
Entech House London Road Woolmer Green SG3 6JE
Received 15 May 2019
Decided - GrantedS6/2004/0113/FP
ERECTION OF REPLACEMENT DWELLING
WEST LODGE, COOPERS LANE, POTTERS BAR, HERTFORDSHIRE, EN6 4NQ
Received 23 Jan 2004
Decided - Refused6/2020/2546/EMH
Erection of first floor side and front extensions, insertion of roof lights and front porch
6 Robin Mead Welwyn Garden City AL7 1PP
Received 1 Oct 2020
Decided - GrantedW6/2013/1957/TE
Reduce Oak tree by 25%
12 Sherrardspark Road, Welwyn Garden City, AL8 7JP
Received 9 Sept 2013
Decided - Refused6/2015/2479/EM
Removal of Scotts Pine tree.
Located on Boundary of 6 Sherrardspark Road & 5 Pentley Park, Welwyn Garden City, AL8 7JP
Received 7 Dec 2015

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