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

18,242Searchable applications

298Recorded as pending

86%Approval rate · 14,703 approved or refused records

2,031Refused applications

12,672 approved · 2,031 refused · 925 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/1502/HOUSE
Erection of single storey rear extension with roof light following the demolition of existing conservatory
7 Linces Way Welwyn Garden City AL7 3JN
Received 11 May 2021
Decided - Granted6/2021/0760/LAWP
Certificate of lawfulness for single storey rear extension with 3x velux windows, a front porch and 3x first floor velux windows.
72 Eagle Way Hatfield AL10 8RE
Received 9 Mar 2021
Decided - Granted6/2026/1278/HOUSE
Erection of a part single, part double storey extension with replacement chimney following the demolition of existing part single, part double storey extension and conservatory
10 Dellcott Close Welwyn Garden City AL8 7BD
Received 20 Jul 2026
Decided - Granted6/2018/2453/TPO
Fell 1 x Sycamore tree covered by TPO468
37 Pine Grove Brookmans Park Hatfield AL9 7BL
Received 25 Sept 2018
Decided - Split6/2026/0523/COND
Submission of details pursuant to Condition 18 (Existing Access), Condition 20 (Parking Spaces) and Condition 23 (External Lighting) on planning permission 6/2021/3422/MAJ
Salisbury Square Hatfield AL7 5AD
Received 23 Mar 2026
Decided - Granted6/2021/1072/HOUSE
Erection of canopy and alterations to fenestration and openings
26 Marsden Green Welwyn Garden City AL8 6YA
Received 31 Mar 2021
Decided - Granted6/2019/2868/EM
Reduce 1x Cherry tree by 1.5m height & 2.5m width
76 Parkway Welwyn Garden City AL8 6HH
Received 13 Nov 2019
Decided - Granted6/2023/0761/EM
Installation of solar panels
43 Handside Lane Welwyn Garden City AL8 6SH
Received 5 Apr 2023
Decided - Refused6/2023/1222/COND
Submission of details pursuant to Condition 4- parts B to D (Site Investigation Scheme) on planning permission 6/2021/2747/MAJ
The Frythe Frythe Avenue Welwyn AL6 9GG
Received 9 Jun 2023
Decided6/2022/0514/TC
Reduce 1 x Conifer tree to midway point of first floor window. 1 on sketch plan Reduce 1 x Conifer tree to midway point of first floor window. 2 on sketch plan Reduce 1 x Holly tree to midway point of first floor window. 3 on sketch plan
73 Knightsfield Welwyn Garden City Hertfordshire AL8 7JE
Received 3 Mar 2022
Decided6/2021/2350/TC
Hornbeam - reduce by 30% Multi-stemmed Hornbeam - reduce by 30%
19 Pentley Park Welwyn Garden City AL8 7RT
Received 9 Aug 2021
Decided - Granted6/2022/2826/COND
Submission of details pursuant to conditions 1 (details of insulation and roof membrane) on planning permission 6/2022/0779/LB
55 Harmer Green Lane Digswell Welwyn AL6 0AP
Received 14 Dec 2022
Decided - Refused6/2018/3022/PN8
Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in heights, 2.600m to the eaves
53 Bishops Rise Hatfield AL10 9BU
Received 22 Nov 2018
Decided - Withdrawn6/2021/1985/HOUSE
Conversion of existing loft space including the erection of a rear dormer, a hip to gable end alteration and two roof lights on the front plane of the existing roof
12 Rollswood Road Welwyn AL6 9TX
Received 30 Jun 2021
Decided - Granted6/2021/1673/COND
Submission of details pursuant to condition 6 (Hard & Soft Landscaping) and 7 (Site Levels), on planning permission 6/2018/2863/FULL
36 The Ridgeway Cuffley Potters Bar EN6 4AX
Received 25 May 2021
Decided - Granted6/2018/3162/HOUSE
Erection of porch, part single part two storey side and rear extensions following demolition of garage
6 Lark Rise Hatfield AL10 8RA
Received 11 Dec 2018
Decided6/2024/2314/TC
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 - Granted6/2021/0452/HOUSE
Retention of raised side and front parapet walls and obscure glazed side bathroom window following grant of planning permission ref: 6/2017/01567/HOUSE.
22 Ravenfield Road Welwyn Garden City AL7 3UE
Received 12 Feb 2021
Decided - Granted6/2020/0186/EM
Installation of 10 solar panels on rear
The Old Stables Digswell Lane Welwyn AL6 0SP
Received 27 Jan 2020
Decided - Granted6/2022/0571/FULL
Erection of a dwelling following demolition of existing dwelling
The Old Cottage 10B Hawkshead Lane Hatfield AL9 7TB
Received 11 Mar 2022
Decided - Granted6/2025/0564/FULL
Erection of one two-storey dwelling following demolition of annexe, together with sub-division of garden area, parking and landscaping
2 Digswell Hill Welwyn AL6 9AL
Received 25 Mar 2025
Decided6/2021/3522/TC
1 x Holly to reduce by 1.5m height & 1m width to maintain size of the tree and create more light into the garden
20 Walden Place Welwyn Garden City AL8 7PG
Received 20 Dec 2021
Decided - Withdrawn6/2019/0560/HOUSE
Alterations to driveway and creation of a new crossover of public verge
1 Youngs Rise Welwyn Garden City AL8 6RT
Received 11 Mar 2019
Decided - Granted6/2025/2586/EMT
Prunus: Reduce in height by 3m and reducing the apex branches to a point that is in shape with the rest of the tree. Bringing total height to 4m
3 Gainswood Welwyn Garden City AL7 3XG
Received 17 Dec 2025

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