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

24,840Searchable applications

313Recorded as pending

86%Approval rate · 20,381 approved or refused records

2,807Refused applications

17,574 approved · 2,807 refused · 1,311 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/3079/HOUSE
Hip to gable roof conversion, with installation of two dormer windows and erection of a single storey rear infill extension.
1 The Driveway Cuffley Potters Bar EN6 4EB
Received 27 Oct 2021
Decided - Granted6/2021/0852/EMH
Single storey rear extension
42 Dawley Welwyn Garden City AL7 1DZ
Received 16 Mar 2021
Decided - Granted6/2018/2398/EM
Fell 1x Cherry Tree( T1) and Reduce 1x Norway Maple (T2) by 20%
42 Rooks Hill Welwyn Garden City AL8 6ET
Received 18 Sept 2018
Decided - Granted6/2016/0782/HOUSE
Erection of front porch
14A Woodside Road Digswell Welwyn AL6 0DR
Received 26 Apr 2016
Decided - Withdrawn6/2021/3016/EM
Erection of a part two storey, part single storey side/rear extension involving demolition of existing rear conservatory
3 Timbercroft Welwyn Garden City AL7 1NS
Received 20 Oct 2021
Decided - Granted6/2024/2313/EMT
T1 Plum Fell (dying back). T2 Robinia to cut back from phone lines by approx. 2 metres. T3 Sycamore to cut back from phone lines by approx. 1-2 metres.
21 Valley Road Welwyn Garden City AL8 7DH
Received 2 Dec 2024
Decided - Granted6/2020/2704/HOUSE
Proposed single storey rear extension
13 Hawkshead Road Little Heath Potters Bar EN6 1LZ
Received 16 Oct 2020
Decided - Granted6/2026/1310/TPO
T2 Horse Chestnut to reduce height to leave approximately 10m above ground level. This is due to a large decayed area in lower trunk. (covered by TPO 1016 (2022) W1)
West Manor Ellesfield Welwyn AL6 9HB
Received 27 Jul 2026
Decided - Granted6/2022/1235/EMT
3 x groups of small self set Ash to fell to ground level. 1 x Hornbeam to fell to ground level, the client wishes to install a patio area close to the tree and landscape the remaining section of the garden. 1 X Twin stemmed sycamore to reduce by 1.5m height & width 1 x Sycamore to reduce by 2.5m height & 1m width
9 Parkway Close Welwyn Garden City AL8 6HJ
Received 25 May 2022
Decided - Granted6/2024/2367/EM
Erection of a part single, part double storey rear extension to replace existing rear extension, single storey side extension and conversion of existing outbuilding, raising of roof to existing garage, installation of a rear dormer window to facilitate a loft conversion
38 Barleycroft Road Welwyn Garden City AL8 6JU
Received 11 Dec 2024
Decided - Granted6/2026/0416/COND
Submission of details pursuant to condition 1 (Management Plan), on planning permission 6/2025/1834/FULL
6 Bishops Close Hatfield AL10 9PW
Received 6 Mar 2026
Decided - Granted6/2017/1899/EM
Remove epicormic growth and deadwood from 2 x Oak Trees (1+2) and reduce height of 1 x Privet hedge to 5ft off the ground
18 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 24 Aug 2017
Decided - Granted6/2023/1664/FULL
Conversion of an existing un-used school gymnasium to create four new teaching class spaces and staff office/admin spaces over two floors together with a new school entrance/reception area
Chancellors School Pine Grove Brookmans Park AL9 7BN
Received 9 Aug 2023
Decided - Granted6/2016/1743/HOUSE
Erection of single storey front, side and rear extensions with loft conversion to include front and rear dormers and removal of existing chimney following demolition of existing outbuilding
11 Mannicotts, Welwyn Garden City, AL8 7BW
Received 24 Aug 2016
Decided - Refused6/2023/2548/HOUSE
Erection of two storey side extension and addition of an alleyway
8 Cole Green Lane Welwyn Garden City AL7 3PW
Received 21 Dec 2023
Decided - Granted6/2018/0619/TPO
Cypress tree (T17) Crown reduce by 1-1.5m off lateral branches to balance asymmetrical crown. Removal of 2 x sycamore (G1).Middle 2 of row containing 4. Both trees are in decline as a result of historic pollarding. Extensive deadwood present in crown of both sycamores. TPO 776 (2018)
2 Harmer Dell Welwyn AL6 0BE
Received 5 Mar 2018
Decided6/2023/1749/TC
Pine (Pinus sp) x 1 (024041) remove deadwood Yew (Taxus sp) x 1 (024046) crown lift to clear 2.5m Lime (Tilia sp) x1 (024047) Remove low growth from stem and repollard to previous pruning points Yew (Taxus sp) x 1 (024048) Trim branch rubbing against adjacent memorial to prevent damage Conifer (Cupressus sp) x 1 (024050) crown lift to clear 2.5m Ash (Fraxinus sp) x 2 (024051 & 024052) to crown reduce by 25% Yew (Taxus sp) x 1 (024055) remove low growth from stem Yew (Taxus sp) x 1 (024056) trim branches back from building to clear 1.5m Cedar (Cedrus sp) x 1 (024057) Fell, decay in the stem and tree showing signs of stress. Stump will not be ground. Lime (Tilia sp) x 1 (070360) Fell, small middle tree that is interfering with growth of adjacent trees which have better form. Stump will not be ground.
St Thomas a Becket Church Northaw Road West and Vineyards Road Northaw EN6 4NW
Received 18 Aug 2023
Decided - Granted6/2025/1008/PN8
Prior approval for the erection of a single storey rear extension measuring 4.5m in depth, 3m in height and 3m to the eaves
15 Theobalds Close Cuffley Potters Bar EN6 4HH
Received 29 May 2025
Decided6/2019/2522/TC
Crown reduction of 3x Hornbeam trees (T1, T2 and T3) by 33%
154 Parkway Welwyn Garden City AL8 6HZ
Received 9 Oct 2019
Decided - Granted6/2023/0851/EM
Erection of single storey rear side and two storey side extension, installation of solar panels to roof and reconstruction of existing driveway
16 Pitsfield Welwyn Garden City AL8 7SJ
Received 20 Apr 2023
Decided - Granted6/2020/3256/PN8
Prior approval for the erection of a single storey rear extension measuring 8m in depth, 2.5m in height and 2.5m to the eaves
22 The Avenue Welwyn AL6 0PP
Received 3 Dec 2020
Decided - Granted6/2020/2366/HOUSE
Erection of a pergola to the rear.
8 Groom Place Welwyn Garden City AL7 1GG
Received 27 Aug 2020
Decided - Granted6/2022/0812/TPO
TPO 931 (2018) 1 X Lime tree to re-pollard down to 10ft (3m) where it has been done in the past.
10 Homestead Court Welwyn Garden City Hertfordshire AL7 4LY
Received 4 Apr 2022
Decided - Granted6/2021/3519/EMT
1 x Weeping Willow to repollard back to previous pruning points, approximately 4m height & width
12 The Jinnings Welwyn Garden City AL7 4QB
Received 20 Dec 2021

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