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

23,394Searchable applications

313Recorded as pending

86%Approval rate · 19,098 approved or refused records

2,674Refused applications

16,424 approved · 2,674 refused · 1,206 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/1995/HOUSE
Erection of outbuilding in rear garden
19 Witchford Welwyn Garden City AL7 2PR
Received 16 Oct 2024
Decided - Granted6/2025/1463/EMT
Fell maple tree
33 Blakemere Road Welwyn Garden City AL8 7PQ
Received 8 Jul 2025
Decided - Granted6/2021/3460/TPO
T1 Ash by sub station- reduce back to previous pruning points approx 4 M (to redress lean into garden). G2 Group mixed trees (mainly Sycamore and Chestnut) to cut back to clear by 2 metres, cut back off telegraph pole 1 by 2 meters and it stands West of Driveway of Essendon Lodge. G3 Group Mixed trees (mainly Field Maple, Sycamore, Chestnut) to cut back 2 metres to clear on road frontage to clear lines from the telegraph pole opposite the junction with Glebe Cottages to the driveway to the west (i.e. behind the gas substation). (AMENDED)
Bedwell End School Lane Essendon Hatfield AL9 6HL
Received 9 Dec 2021
Decided6/2020/2491/TC
Fell 1 x Ash Fell 1 x Maple
26 Birdcroft Road Welwyn Garden City AL8 6EQ
Received 29 Sept 2020
Decided - Granted6/2018/0004/COND
Submission of details pursuant to condition 2 (materials samples) on planning permission 6/2016/1463/HOUSE
17 Coneydale Welwyn Garden City AL8 7RX
Received 2 Jan 2018
Decided - Granted6/2021/2549/FULL
Retention of a detached semi-permanent building for a temporary period of 3 years for storage purposes
Sika Limited Watchmead Welwyn Garden City AL7 1LT
Received 1 Sept 2021
Decided - Granted6/2017/2132/HOUSE
Erection of a single storey side and rear extension following demolition of existing garage
11 Brickfield Hatfield AL10 8TN
Received 21 Sept 2017
Decided - Granted6/2018/0191/EM
Installation of single panel of bifold doors following removal of french doors
43 Fordwich Road Welwyn Garden City AL8 6EY
Received 22 Jan 2018
Decided - Granted6/2023/1451/HOUSE
Erection of single storey rear extension with insertion of rooflights, first floor rear/side corner infill extension
55 Carleton Rise Welwyn AL6 9RQ
Received 12 Jul 2023
Decided - Withdrawn6/2016/2260/EM
Replacement of existing white PVC front door with a pale blue composite design
19 Russellcroft Road Welwyn Garden City AL8 6QX
Received 26 Oct 2016
Decided - Granted6/2017/0562/EM
Erection of single storey rear extension & installation of two rooflights following demolition of existing conservatory
36 Knightsfield Welwyn Garden City AL8 7HA
Received 20 Mar 2017
Decided6/2021/1422/TC
Elder (1) - fell Holly (2) - fell Elder (3) - fell Holly (4) - fell Holly (5) - 30% height reduction and pruning Holly (6) - 30% height reduction and pruning Holly (7) - 30% height reduction and pruning Hawthorne (8) - 30% height reduction and pruning
11 The Quadrangle Welwyn Garden City AL8 6SG
Received 5 May 2021
Decided - Granted6/2025/2598/HOUSE
Raising of rear single storey roof to accommodate a warm flat roof & skylight
54 Homewood Avenue Cuffley Potters Bar EN6 4QR
Received 19 Dec 2025
Decided - Granted6/2025/2015/HOUSE
Proposed erection of a single-storey rear extension, conversion of garage into a habitable room, alterations to roof of side projection to accommodate the reconfiguration of internal layouts and alterations to existing front steps and terrace
93 Pentley Park Welwyn Garden City AL8 7SL
Received 19 Sept 2025
Decided - Granted6/2026/1007/EM
Removal of severely damaged hedge and replace with 3 ft picket fence with hedgerow behind
123 Blythway Welwyn Garden City AL7 1DN
Received 8 Jun 2026
Decided - Granted6/2017/1375/HOUSE
Erection of a single storey rear extension, raised patio area and associated steps
20 Kingswell Ride Cuffley Potters Bar EN6 4LH
Received 26 Jun 2017
Decided - Granted6/2018/1207/HOUSE
Erection of a two storey side extension
312 Knightsfield Welwyn Garden City AL8 7NQ
Received 8 May 2018
Decided - Granted6/2018/0795/HOUSE
Raising of roof to include two storey rear extension, front and rear dormers and side windows plus erection of front porch and a double length tandem garage towards the rear following demolition of existing attached garage.
9 The Drive Welwyn AL6 0TW
Received 26 Mar 2018
Decided - Refused6/2021/2093/EM
Erection of a single storey side extension, alterations to fenestration/openings, erection of privacy screens to create first floor terraces, following the part demolition of existing roofed structure adjacent to No 20.
22 Parkway Welwyn Garden City AL8 6HG
Received 9 Jul 2021
Decided - Granted6/2017/2874/HOUSE
Demolition of existing outbuildings. Erection of a detached garage and erection of shed. Erection of gate and construction of hardstanding. Construction of base
8 The Drive Welwyn AL6 0TR
Received 11 Dec 2017
Decided6/2020/1802/TC
Fell x1 Willow (B) Fell x1 Leyland Cypress Hedge (A)
89 Moorlands Welwyn Garden City AL7 4QQ
Received 22 Jul 2020
Decided - Granted6/2022/1555/HOUSE
Erection of new front porch with stepped access and two storey rear extension following removal of existing conservatory. Erection of front dormer window and alterations to front and rear fenestration.
48 Robbery Bottom Lane Welwyn Hertfordshire AL6 0UN
Received 4 Jul 2022
Decided - Granted6/2025/1735/EM
Replacement 3-pane rear facing bathroom window with 2-pane window of similar appearance. The gap created by the removal of the 3rd pane will be filled with bricks consistent with the rest of the building
47 Fordwich Road Welwyn Garden City AL8 6EY
Received 14 Aug 2025
Decided - Granted6/2020/0735/COND
Submission of details pursuant to condition 1C (fencing details) on planning permission 6/2019/3114/FULL
Oak View Primary and Nursery School Woods Avenue Hatfield AL10 8NW
Received 16 Mar 2020

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