Hatfield House Hatfield Park Great North Road Hatfield AL9 5NF Data via plota.co.uk

6/2026/1646/LB - LISTED BUILDING Under Consultation

Proposal

Roof repairs and ancillary works associated with the Grade I Listed Hatfield House Data via plota.co.uk

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View original council record ↗Last checked 27 Oct 2026, 11:13

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Application progress

✓

Received

21 Sept 2026

Decision

Expected by 16 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 16 Nov 2026, from Welwyn Hatfield's recent commercial premises.

Comments are open until 29 Oct 2026

Comment on this application ↗

Documents 43

Statements & assessments 3

PDF Re_ 6_2026_1646_LB Herts Ecology comments_Redacted.pdf (106 kb) Document · 23 Oct 2026 View ↗ PDF Design and Access Statement 260916.pdf (14377 kb) Document · 21 Sept 2026 View ↗ PDF Hatfield House Heritage Impact Assessment HHHC.06 001.pdf (8169 kb) Document · 21 Sept 2026 View ↗

Plans & drawings 21

Site constraints 6

Grade I listed: Hatfield House

List entry 1173363 · 26 m away · 5 more listed buildings within 150 m (1 Grade I, 4 Grade II)

Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.

Show the other 5 with distances

52 mWalls and Gates on the North and West Sides of Hatfield HouseGrade II
90 mGates, Walls and Pavilions on the South Side of Hatfield HouseGrade II
94 mGarden Walls on East Side of Hatfield HouseGrade II
124 mGarden Walls and Gates on the West Side of Hatfield House,joining the PalaceGrade II
132 mThe PalaceGrade I

Historic England ↗

Green belt: London

Inappropriate development needs very special circumstances.

Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm. Some green belt land can count as grey belt, where it does not strongly serve the green belt's purposes. The council decides this in its green belt assessment or on each application, so we do not mark it here.

Read the government guidance ↗

Registered park or garden: Hatfield House

Nationally designated heritage. Its significance and setting carry great weight.

Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.

Historic England ↗

Agricultural land, grade 3b

Not best and most versatile land (grades 1, 2 and 3a). Source: the Predictive Agricultural Land Classification Map (Defra and Natural England, 2025; the Welsh Government's Predictive ALC Map 2 in Wales), a model rather than a site survey. Natural England's Provisional ALC map (1:250,000, 1970s) agrees.

Where development of farmland is needed, policy prefers poorer land over the best and most versatile (grades 1, 2 and 3a). Three sources: Natural England's post-1988 field surveys, which are definitive where they exist; the Defra predictive map for England (2025) and the Welsh Government predictive map, modelled from the soil map with 3a and 3b split; and the 1970s provisional map, which planners and other services still show, coarser and with grade 3 undivided. Where the provisional and predicted grades disagree, treat the predicted grade as the current estimate and expect an application to carry its own survey.

Also on the record

Radon affected area, class 2; Conservation area 47 m away: Old Hatfield.

Not affected

Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Important details

Council: Welwyn Hatfield
Application type: LISTED BUILDING
Postcode: AL9 5NF
Received: 21 Sept 2026
Validated: 21 Sept 2026
Parish: Hatfield
Case officer: Show
Decision level: Delegated
Applicant: Show
Agent: Show
Freehold owner: Show

Decision outlook

Day 37 of the 56-day target. Welwyn Hatfield usually decides commercial premises by day 56.

prediction

Day 3719 days to the 56-day target

61%decided within 8 weeks

82%approved

45decided in the last year

Plota live figures for commercial premises decided by Welwyn Hatfield in the last twelve months, from validation. Welwyn Hatfield decision record →

Consultation & key dates

Comments by: 29 Oct 2026

Welwyn Hatfield

Planning Authority Score

2.1/10

Poor

#272 of 296 councils

Relevant to this application:

Other decisions

Welwyn Hatfield is slower than most councils at deciding householder applications, ranking #224 out of 296. 50% of applications have the time limit extended, above the 41% national average. Householder applications are slightly less likely to be approved here (86%) than the national average (90%).

Slower than most councils

for householder decisions

These figures are council-wide context, not a prediction for this application. View full council performance

Welwyn Hatfield decision statistics

Based on MHCLG data, the year to March 2026

86%

Overall approval rate

Below avg (87%) #200 of 296

86%

Householder approved

Below avg (90%) #246 of 296

53%

Decided in 8 weeks

Below avg (63%) #224 of 296

50%

Extended time limit

Above avg (41%) #229 of 296

84%

Minor dwellings approved

63 decided (1-9 homes)

83%

Major dwellings approved

12 decided (10+ homes)

73%

Change of use approved

22 decided

633

Total decisions

87 refused in the year to March 2026