Council hub · East of England
Welwyn Hatfield planning applications
1,033 applications. 88% approved. 58 days to decide.
As of July 2026, PlanIndex holds 1,033 planning applications from Welwyn Hatfield. 208 were decided in the trailing 12 months, with 88% of clear-cut outcomes approved.
Latest applications
Data to July 2026
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6/2026/1325/COND Awaiting decision
44 Howardsgate Welwyn Garden City AL8 6BW
Submission of details pursuant to condition number 1 (materials) on planning permission 6/2026/0317/FULL
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6/2026/1293/HOUSE Awaiting decision
33 Claves Crescent Welwyn Garden City AL7 1WN
Erection of a single storey rear conservatory
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6/2026/1285/TPO Awaiting decision
24 Hill Rise Cuffley Potters Bar EN6 4EJ
Type of Tree : Multi-Stemed Hornbeam Number on Sketch Plan - G1 Reduction of tree size by circa 20% -25% Reason for request : Maintenance Location - within boundary of 24 Hill Rise - facing HILL RISE (covered by TPO 513 (2016))
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6/2026/1280/TC Awaiting decision
110 Woodside House Bridge Road Welwyn Garden City AL8 6UL
T1- muti-stemmed Oak tree to lift by 4 metres and cut back by 2-3 metres for light and maintenance. T2-a row of 7 Beech trees to lift to 4 metres and cut back by 2-3 metres for light and maintenance as they are overgrowing the building.
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6/2026/1271/TPO Awaiting decision
33 Oaklands Rise Welwyn AL6 0RN
TPO 673 Removal of dead hornbeam tree
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6/2026/1277/TC Awaiting decision
36 Blakemere Road Welwyn Garden City AL8 7PJ
Reduce 1 x Lime Tree by removing up to 3m of regrowth
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6/2026/1265/PN8 Awaiting decision
1 Newstead Hatfield AL10 9DH
Prior approval for a single storey rear extension measuring 6.00m in depth, 2.60m to the eaves and the maximum height of 3.00m
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6/2026/1268/EM Awaiting decision
79 Attimore Road Welwyn Garden City AL8 6LG
Addition of new roof lights, roof tile and window repairs (like for like) and new Burglar and CCTV installation.
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6/2026/1273/FULL Awaiting decision
Council owned flats: 26-36 Aldykes Hatfield AL10 8EF and 44-54 Feather Del, Hatfield AL10 8DD
Replacement windows and doors to double/triple glazed units and thermal doors with the addition of balcony insulation system to balcony slab and new railings (to match existing, installation of cavity wall insulation to all external walls
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6/2026/1275/FULL Awaiting decision
Council owned flats: Feather Dell Hatfield AL10 8DD 20-42 Feather Dell Hatfield AL10 8DD
Installation of wall insulation (materials to match existing to all of the external wall), replacement windows and doors to double/triple glazed units and thermal doors, balcony insulation system to be added to balcony slab and new railings (to match existing) to be installed
Recent decisions
Data to July 2026
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6/2025/2262/HOUSE Granted
9 Hill Rise Cuffley Potters Bar EN6 4ED
Erection of a part single and part two storey rear extension, garage conversion to habitable use and alterations to fenestration
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6/2026/0652/EM Granted
88 Attimore Road Welwyn Garden City AL8 6LP
Single storey rear/side infill and rear extension, first floor side/rear extension, garage conversion including 1.5m extension and raising of roof, alteration to side elevation opening and insertion of rooflight to existing roof.
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6/2026/0686/FULL Withdrawn
11 Georges Wood Road Brookmans Park AL9 7BY
Erection of new dwelling and associated hard and soft landscaping following demolition of the existing dwelling and the detached garage
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6/2026/0904/HOUSE Granted
7 Greenfield Hatfield AL9 5HW
Erection of a single storey rear extension, conversion of double integral garage, covered porch, replacement front dormer and erection of new boundary wall following the removal of the existing hedge
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6/2026/0906/EM Granted
102 Lemsford Lane Welwyn Garden City
Proposed single-storey rear and side extension, incorporating three new rooflights
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6/2026/0930/EM Granted
36 Coltsfoot Welwyn Garden City AL7 3HZ
Erection of single storey rear extension
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6/2026/0945/COND Granted
24 Hardings Welwyn Garden City AL7 2EJ
Submission of details pursuant to Condition 1 (materials) on planning permission 6/2023/1259/FULL
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6/2026/0970/COND Granted
Huttons Marsden Road Welwyn Garden City AL8 6YG
Submission of details pursuant of condition 2 (Odour and noise) on planning permission 6/2023/2449/FULL
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6/2026/0983/EM Granted
8 Beehive Green Welwyn Garden City AL7 4BE
Installation of solar panels and changes to fenestration
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6/2026/1040/COND Granted
1 Town Centre Hatfield AL10 0JZ
Submission of details pursuant to Condition 23 (first use of the commercial element) on planning permission 6/2021/1987/VAR
The full record
Decisions between 2021 and 2026
PlanIndex holds 676 decisions from Welwyn Hatfield between 2021 and 2026, part of 1,033 applications on record. Over that period 88% of clear-cut outcomes were approvals, 563 granted against 75 refused. The busiest single year was 2026, with 493 applications recorded.
The trailing-year figures above track current activity. This record reaches back further, so a decision here may predate the online portal; each application still has its own page with the source link.
From the archive
Earliest records shown in full
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6/2021/0636/COND Granted
56 Bridge Road East Welwyn Garden City AL7 1JU
Submission of details pursuant to condition 1 on planning permission 6/2018/2871/PN11 for the change of use from offices (B1a) to residential (C3)
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6/2021/0560/COND Granted
8 Longcroft Lane Welwyn Garden City AL8 6EA
Submission of details pursuant to condition 1 and 2 on planning permission 6/2020/1383/HOUSE
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6/2021/1238/COND Granted
63-65 New Road Digswell Welwyn AL6 0AL
Submission of details pursuant to condition number 1 (Construction Management Plan) and 2 (Site Levels), on planning permission 6/2019/1569/FULL
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6/2021/1989/VAR Withdrawn
Link Drive Car Park Link Drive Hatfield AL10 8TY
Variation of condition 30 (energy and ventilation strategy), on planning permission 6/2021/2431/MAJ
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6/2021/1743/TC Granted
3 Ashley Close Welwyn Garden City AL8 7LH
Fell 1 x Norway Maple tree, remove low limb from 1 x Oak tree covered by conservation area
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6/2021/1580/TPO Granted
15 Reeves Court Welwyn AL6 9FU
Lift canopy of 1 x Oak tree to 4m above ground level
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6/2021/1570/EMH Granted
46 Blakemere Road Welwyn Garden City AL8 7PJ
Erection of first floor side extension, ground floor side extension, first floor rear extension to facilitate loft conversion, fenestration alterations and replacement of chimney
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6/2021/1568/EMH Granted
47 Howicks Green Welwyn Garden City AL7 4RJ
Erection of a single storey front extension to replace porch canopy & external cupboard
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6/2021/1569/EMH Granted
46 Blakemere Road Welwyn Garden City AL8 7PJ
Erection of first floor side extension, ground floor side extension, first floor rear extension to facilitate loft conversion, fenestration alterations and replacement of chimney
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6/2021/1565/EMH Granted
46 Blakemere Road Welwyn Garden City AL8 7PJ
Erection of first floor side extension, ground floor side extension, first floor rear extension to facilitate loft conversion, fenestration alterations and replacement of chimney
Decision speed
12 months to July 2026, where both dates are published
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Within 8 weeks the statutory target for most applications 94 45%
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8 to 13 weeks the target band for major development 72 35%
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Over 13 weeks often extended by agreement 42 20%
Common questions
How many planning applications does Welwyn Hatfield decide?
In the 12 months to July 2026, Welwyn Hatfield decided 208 planning applications. 88% of clear-cut outcomes were approvals.
How long does a planning decision take in Welwyn Hatfield?
The median time from a planning application being received to a decision was 58 days over the 12 months to July 2026. Individual cases vary with complexity and consultation responses.
How many Welwyn Hatfield decisions arrive within the eight week target?
Of the 208 decisions in the 12 months to July 2026 where both dates are published, 45% came within eight weeks of the application being received, and 80% within thirteen weeks.
How many planning applications has Welwyn Hatfield decided in total?
PlanIndex holds 676 decisions from Welwyn Hatfield between 2021 and 2026, out of 1,033 applications on record. Across that whole period 88% of clear-cut outcomes were approvals.
When is planning activity busiest in Welwyn Hatfield?
June 2026 was the busiest month across the 12 months to July 2026, with 162 applications recorded. The monthly pattern is listed on this page.
How do I find a planning application by its reference number?
Every application indexed here has its own page at a stable address. Look the reference up in a search engine together with the council name, or browse the latest applications below. Each page shows the description, address, dates and decision as the council published them.
Cite these figures
Welwyn Hatfield: 1,033 planning applications on record as of July 2026. Trailing 12 months: 208 decided, 88% approved, median 58 days to a decision. 526 new applications received in the same period. Decisions on record run between 2021 and 2026: 676 in total, 88% approved. Source: PlanIndex, planindex.co.uk.