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

40,146Searchable applications

300Recorded as pending

86%Approval rate · 33,676 approved or refused records

4,802Refused applications

28,874 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 2 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2015/0038/NM
Non material amendment following approval of planning permission N6/2012/1638/FP –External alterations to the ramp and fencing and alterations to the fenestration and roof pitch of the building
Stanborough Park, Stanborough Road, Welwyn Garden City, AL8 6DR
Received 12 Jan 2015
Decided - Granted6/2019/0057/LAWP
Certificate of lawfulness for left hand side single storey extension with flat roof
74 Brocket Road Welwyn Garden City AL8 7TU
Received 11 Jan 2019
Decided - GrantedN6/2015/0072/LUP
Erection of rear extension to create orangery and the removal of chimney stack
48 Reynards Road Welwyn AL6 9TP
Received 16 Jan 2015
Decided - Granted6/2020/1059/EMT
Reduce 1 x Box Elder tree by 1.5m Reduce long pollard regrowth 1 x Lime tree
5 Meadow Green Welwyn Garden City AL8 6SS
Received 12 May 2020
Decided - Granted6/2022/0506/PN8
Prior approval for erection of single storey rear extension 4.30m in depth and 4.0m in height
128 Holwell Road Welwyn Garden City Hertfordshire AL7 3RW
Received 3 Mar 2022
Decided - Granted6/2017/1923/ADV
Installation of 1 x non-illuminated sign post, 2 x non-illuminated cut lettering on north and south elevation and 5 x non-illuminated car parking signs
Anson Court Shackleton Way Welwyn Garden City AL7 2FF
Received 28 Aug 2017
Decided - Refused6/2021/0794/HOUSE
Erection of a part two storey, part single storey rear extension and first floor front and side windows
213 Knella Road Welwyn Garden City AL7 3NT
Received 11 Mar 2021
Decided - Granted6/2024/1813/EM
Installation of EV Charger
65 Handside Lane Welwyn Garden City AL8 6SH
Received 19 Sept 2024
Decided - WithdrawnS6/2013/1794/NM
Non material amendment following approval of planning permission S6/2012/1261/FP - Reshaped roof on rear and side single storey section
49 The Meadway, Cuffley, Potters Bar, EN6 4ET
Received 19 Aug 2013
DecidedN6/2008/2128/TC
WORKS TO TWO TREES TO THIN CROWNS BY 25%
LAND ADJACENT TO, 27 BIRDCROFT ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6EH
Received 12 Nov 2008
Decided - GrantedW6/2009/2442/EM
INSTALLATION OF SATELLITE DISH
20 TEMPLEWOOD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7HX
Received 4 Nov 2009
Decided - Refused6/2023/0415/HOUSE
Erection of single storey, part two storey rear extension
48 Woods Avenue Hatfield AL10 8NA
Received 22 Feb 2023
Decided - Granted6/2015/2111/VAR
Variation of condition 2 (plans) on planning application N6/2012/1126/FP (Allowed appeal decision APP/C1950/A/12/2181582)
24 Prospect Place Welwyn AL6 9EN
Received 12 Oct 2015
Decided - Granted6/2020/3053/FULL
Erection of a two storey side extension, front porch extension, part single and part two storey rear extension with rooflights, proposed window openings and alterations to existing window openings (Amendment to application approved under decision reference 6/2018/1591/HOUSE).
397 St Albans Road West Hatfield AL10 9RU
Received 18 Nov 2020
Decided - GrantedN6/2004/1004/FP
INSTALLATION OF AIR CONDITIONING UNIT.
39 Brownfields Welwyn Garden City AL7 1AN
Received 2 Jul 2004
Decided - Granted6/2020/0247/EM
Erection of 1x dwelling and garage following demolition of existing dwelling and garage
105 Attimore Road Welwyn Garden City AL8 6LG
Received 29 Jan 2020
Appeal Decided - DismissedS6/2008/2328/FP
LOFT CONVERSION AND ALTERATIONS TO ROOF INCORPORATING: FRONT AND REAR DORMERS AND INCREASE OF RIDGE HEIGHT TO CREATE FIRST FLOOR ACCOMMODATION
THE BUNGALOW, TOLMERS CAMP SITE, TOLMERS ROAD, CUFFLEY, HERTFORDSHIRE, EN6 4JS
Received 2 Dec 2008
Decided - Granted6/2021/2008/HOUSE
900 mm extension to existing rear balcony with steel supports
29 Northaw Road East Cuffley Potters Bar EN6 4LU
Received 1 Jul 2021
Decided - Granted6/2018/0762/HOUSE
Erection of two storey side extension, following demolition of existing detached garage and widening of front hardstanding.
2 Aldock Welwyn Garden City AL7 4QF
Received 21 Mar 2018
Decided - Granted6/2017/0484/EM
Erection of rear conservatory
29 Mandeville Rise Welwyn Garden City AL8 7JT
Received 13 Mar 2017
Decided - GrantedS6/2013/0271/DS
Discharge of condition 3 (materials) of planning permission S6/2012/1591/FP
Northaw C of E Primary School, Vineyards Road, Northaw, POTTERS BAR, EN6 4PB
Received 8 Feb 2013
Decided - Granted6/2023/2346/LB
Restore balconies, canopies and planters to original colour
82-124 and 83-125 Knightsfield Welwyn Garden City AL8 7HB
Received 21 Nov 2023
Decided - GrantedW6/2014/1320/TE
Removal of Sycamore tree
17 Sandpit Road, Welwyn Garden City, AL7 3TW
Received 16 Jun 2014
Decided - Granted6/2020/2086/LAWE
Lawful development certificate requested for the alterations made to the pitched garage roof and formation of a single storey front extension to form a recycling store.
7 Mannicotts Welwyn Garden City AL8 7BW
Received 19 Aug 2020

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