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

21,673Searchable applications

297Recorded as pending

86%Approval rate · 17,555 approved or refused records

2,493Refused applications

15,062 approved · 2,493 refused · 1,109 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/2539/EM
Installation of garden room (3m x 4.5m) at rear of garden for office working. Will be installed 50cm in from the boundary. Dying hedge to be removed and replaced with new evergreen hedge.
53 Handside Lane Welwyn Garden City AL8 6SH
Received 31 Aug 2021
Decided - Granted6/2025/0700/EM
Erection of potting shed on back left hand corner of the plot. Dimensions 243cm long x 182cm wide x 180cm high, wooden with a green stain finish. It can't be seen from the road, and will be positioned a metre from the side boundary and a metre from the back boundary.
29 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 14 Apr 2025
Decided - Granted6/2023/1761/EMT
T1 - Poplar - Located in rear garden - Re-pollard to previous or suitable points removing up to 3m T2 - Poplar - Located in rear garden - Re-pollard to previous or suitable points removing up to 3m T3 - Poplar - Located in rear garden - Re-pollard to previous or suitable points removing up to 3m T4-T5 - Poplar - Located in rear garden - Re-pollard to previous or suitable points removing up to 3m T6 - Poplar - Located in rear garden - Re-pollard to previous or suitable points removing up to 3m Reason - For general maintenance purposes
36-50 Cypress Avenue AL7 1HN
Received 21 Aug 2023
Decided - Granted6/2019/1768/HOUSE
Erection of part single, part two storey rear extension
186 Thistle Grove Welwyn Garden City AL7 4AJ
Received 8 Jul 2019
Decided - Granted6/2019/0049/EM
Erection of a single storey rear extension with alterations to openings. Installation of a sky dish, increase in the height of part of the garage roof, installation of an air conditioning unit, insertion of rooflights into the existing rear extension and garage, installation of bi-fold doors, and part conversion of the existing garage into habitable accommodation.
7 Pitsfield Welwyn Garden City AL8 7SJ
Received 10 Jan 2019
Decided - Granted6/2017/2643/EM
Erection of timber shed in rear garden.
13 Marley Road Welwyn Garden City AL7 4BT
Received 13 Nov 2017
Decided - Granted6/2021/1445/EMT
Fell 5 x Conifers (T1-5), reduce 1 x Willow tree (T6) by a third
45 Digswell Rise Welwyn Garden City AL8 7PP
Received 7 May 2021
Decided6/2020/1150/TC
Fell and Remove stump of 1 x Ash Tree
120 Handside Lane Welwyn Garden City AL8 6SZ
Received 18 May 2020
Decided - Granted6/2017/0753/COND
Submission of details pursuant to condition 3 (materials) 4 (landscaping) and 8 (remediation) on planning permission 6/2015/1774/MAJ dated 29/09/2016
71 Great North Road Hatfield AL9 5EN
Received 10 Apr 2017
Decided - Granted6/2020/1417/FULL
Alterations to side and rear (front) elevations to change existing access of the takeaway.
Rear of 36 Town Centre Hatfield AL10 0LD
Received 18 Jun 2020
Decided - Granted6/2021/1020/FULL
Construction and operation of an energy storage facility and with associated equipment
Dellsome Power Hatfield Grid Station Dellsome Lane St. Albans Colney Heath AL4 0QT
Received 29 Mar 2021
Decided - Granted6/2022/2239/HOUSE
Erection of a two storey side extension and part two storey, part single storey rear extension, new front entrance porch, raising ridge line of main roof to form a crown roof, installation of rear dormer and two rooflights on front and side roof slopes.
115 Tolmers Road Cuffley Potters Bar EN6 4JL
Received 28 Sept 2022
Decided6/2022/2388/TC
Birch Tree - trim crown of dead and or weak branches and reduce crown by approximately 2m.
34 Brockswood Lane Welwyn Garden City AL8 7BG
Received 14 Oct 2022
Appeal Decided - Allowed6/2020/1545/HOUSE
Erection of two-storey side and front extension; single-storey rear extension; rear dormer to facilitate a loft conversion and laying of hard-standing to frontage
48 Bramble Road, Hatfield, AL10 9SA
Received 29 Jun 2020
Decided - Granted6/2021/3433/HOUSE
Erection of a part single part two storey side extension and fenestration alterations.
95 High Dells Hatfield AL10 9HT
Received 8 Dec 2021
Decided - Granted6/2016/2343/HOUSE
Erection of single storey rear & side extension with new garage and loft conversion plus two side dormers and roof lights
69 King James Avenue Cuffley Potters Bar EN6 4LN
Received 7 Nov 2016
Decided - Granted6/2019/2549/COND
Submission of details pursuant to condition 1(Material Samples) on planning permission 6/2019/1989/HOUSE
23 Pentley Park Welwyn Garden City AL8 7RT
Received 10 Oct 2019
Decided - Granted6/2022/2049/TPO
Crown reduce 1 x Oak tree by approx 1-2m and crown clean The crown will be cleared/reduced by a maximum of 20-25% in order to improve airflow through the tree and reduce the effect of storm winds on it. Just clearing deadwood. Covered by TPO 812 (2018) T2
24 Carleton Rise Welwyn Hertfordshire AL6 9RF
Received 5 Sept 2022
Decided - Granted6/2022/2752/HOUSE
Erection of a single storey rear extension with internal amendments
9 Orchard Way Little Heath Potters Bar EN6 1NT
Received 5 Dec 2022
Decided - Refused6/2018/1322/FULL
Subdivision of existing residential unit into 2 x flats with shared access from existing ground floor entrance
55-56 Bradmore Green Brookmans Park Hatfield AL9 7QS
Received 18 May 2018
Decided - Granted6/2023/1428/EMT
Removal of 2 x conifers either side of the path including the removal of both tree stumps
27 Russellcroft Road Welwyn Garden City AL8 6QX
Received 10 Jul 2023
Decided - Granted6/2025/0156/FULL
Change of use at Units 3, 4 and 5, A1(M) Business Centre to secure a flexible range of uses within Classes E(g)(iii), B2 and / or B8
Units 3, 4 and 5, A1(M) Business Centre Dixons Hill Road Welham Green Hertfordshire AL9 7JE
Received 29 Jan 2025
Decided6/2019/1362/TC
Reduce 1 x Oak tree by 2.5m height & 2m width
1 Scotts View Welwyn Garden City AL8 6HF
Received 6 Jun 2019
Decided6/2025/2343/TC
Fell ash tree (due to ash dieback).
Garden House rear of 16 Fore Street Hatfield AL9 5AH
Received 5 Nov 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