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

40,288Searchable applications

321Recorded as pending

86%Approval rate · 33,780 approved or refused records

4,816Refused applications

28,964 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedW6/2008/0759/EM
ERECTION OF REAR CONSERVATORY
16 CLOVERFIELD, WELWYN GARDEN CITY, HERTS, AL7 1EG
Received 6 May 2008
DecidedN6/2014/2010/TC
Fell White Beam to ground level and replace with a tree of the same species
9 Elmwood, Welwyn Garden City, AL8 6LD
Received 9 Sept 2014
Decided - Granted6/2015/1642/HOUSE
Erection of two storey side extension with integral garage and single storey rear extension
49 Great Ley Welwyn Garden City AL7 4TJ
Received 4 Aug 2015
Decided - GrantedS6/2013/2265/FP
Part two storey and part single storey side extension to incorporate new integral garage and extension to first floor bedrooms, single storey rear ‘open garden room’, first floor side and front extension, single storey infill extension to front with addition of pitched roof above. Creation of new vehicular access and driveway
35 Upland Drive, Brookmans Park, Hatfield, AL9 6PT
Received 22 Oct 2013
Decided - GrantedW6/2013/0313/EM
Erection of detached garage
54 Thistle Grove, WELWYN GARDEN CITY, AL7 4AN
Received 7 Feb 2013
Decided - Refused6/2024/0911/HOUSE
Erection of a single storey side extension, front porch extension, two storey side and rear extension, formation of crown roof with side and rear dormers and alterations to the fenestration
3 Tolmers Gardens Cuffley Potters Bar EN6 4JE
Received 16 May 2024
Decided - Granted6/2025/0404/EM
Removal of existing dead and dying privet hedge and replacement with new yew hedge between front garden boundary of numbers 16 and 18
16 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 3 Mar 2025
Decided - Refused6/2022/1949/TPO
T1 - Oak tree - TPO 695 (2017) All epicormic growth is to be removed from truck up to crown break Approx crown lift to 6m. full crown reduction approx 2m of new growth to be cut back to previous pruned points. Insurance has stated they want the tree maintained due to large subsidence cracks in the house, they have stated that they woudl like the tree pruned roughly every 2 years this will help with the subsidence. I believe it has been around 4 years since the tree has been previously pruned so is over due, this was due to covid so is in need of reducing again.
40 Tolmers Road Cuffley Potters Bar Hertfordshire EN6 4JF
Received 22 Aug 2022
Decided - Granted6/2023/1538/PN27
Prior approval for the construction of an additional storey to facilitate the enlargement of the dwellinghouse to a maximum of approximately 7.7m in height
The Bungalow Great North Road Hatfield AL9 6DB
Received 24 Jul 2023
Decided - Granted6/2021/0344/VAR
Variation of condition 9 on planning permission (6/2019/1382/FULL)
Kellard House (formally Entech House) Woolmer Green SG3 6JE
Received 4 Feb 2021
Decided - RefusedN6/2013/1784/FP
Coversion of garage to independent residential unit
2 Salisbury Road, Welwyn Garden City, AL7 3SD
Received 17 Aug 2013
Decided - Granted6/2021/2168/EM
Replacement and enlargement of existing conservatory to rear of property
100 Ridgeway Welwyn Garden City AL7 2DA
Received 16 Jul 2021
Decided - GrantedN6/2013/2123/FP
Erection of part two storey and part single storey rear extension with three rooflights, two dormers and three porthole windows
1 Reddings, Welwyn Garden City, AL8 7LA
Received 8 Oct 2013
Decided - Granted6/2024/0200/EMT
1 x Beech to reduce by approximately 3.5m in height and 1.5m in width creating a more compact canopy.
3 Nursery Gardens Welwyn Garden City AL7 1SF
Received 31 Jan 2024
Decided - Granted6/2018/1218/HOUSE
Erection of a first floor side and single storey rear extension
31 Selwyn Crescent Hatfield AL10 9NL
Received 9 May 2018
Decided - Granted6/2018/2456/HOUSE
Erection of first floor front extension with open ground floor/canopy including alterations to rear openings
38 Bramble Road Hatfield AL10 9SA
Received 25 Sept 2018
Decided - Granted6/2026/0071/EMT
Crown reduce 2 x cherry trees by approx 2m Crown reduce 1 x sycamore tree by approx 2m Reduce 2 x conifers by approx 2-3m Crown reduce 2 x Hawthorn by 2-3m Crown reduce 2 x damson trees by 2m Re pollard apple tree back to previous growth points
150 Heronswood Road Welwyn Garden City AL7 3EU
Received 15 Jan 2026
Decided - GrantedS6/2013/1685/NM
Non material amendment following the approval of planning permission S6/2013/0974/FP - Change development description to: Flexible planning permission for use as B1 (Offices) or Sui Generis (Mix use office and training facility with works to include alterations to car park) for a period of 10 years
The Colonnades Beaconsfield Close Hatfield AL10 8YE
Received 7 Aug 2013
Decided6/2021/3019/TC
T1 - Beech - Crown reduce by 20% (or no more than 2.5m) - Dead wood removal - Remove short stem growing from base of tree but seperate from main trunk
5 Mannicotts Welwyn Garden City AL8 7BW
Received 21 Oct 2021
Decided - Granted6/2023/0650/EM
Like-for-like replacement of an existing garden shed, now suffering from rot
65 Parkway Welwyn Garden City AL8 6JF
Received 22 Mar 2023
Decided - Granted6/2017/1566/EM
Installation of block paved driveway
10 Handside Green Welwyn Garden City AL8 6SQ
Received 17 Jul 2017
Decided - Granted6/2021/1587/EMT
1 x Eucalyptus to reduce by 3m height & 2.5m width.
45 Mill Green Road Welwyn Garden City AL7 3UX
Received 18 May 2021
Decided - Granted6/2016/1752/HOUSE
Erection of two storey side/front extension, alterations to the roof and pitch roof to the existing front dormer, and rear roof light
20 Warwick Avenue, Cuffley, Potters Bar, EN6 4RS
Received 25 Aug 2016
Appeal Decided - Allowed6/2019/3245/LB
Installation of 2x Illuminated signage (2 no. locations)
Comet Hotel St Albans Road West Hatfield AL10 9RH
Received 24 Dec 2019

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

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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