Cavendish House 30 High Street Markyate St Albans Hertfordshire AL3 8PB Data via plota.co.uk

26/01857/TCA - Works to Tree(s) in Conservation Area Approved

Proposal

Works to trees Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
26 Aug 2026
✓
Approved
2 Sept 2026

Approved on 2 Sept 2026 · Last checked 30 Sept 2026

Site constraints 9

Grade II listed: Cavendish House
List entry 1295946 · 11 m away · 12 more listed buildings within 150 m (12 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 12 with distances
Historic England ↗
Markyate conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
National landscape 194 m away: Chilterns; Radon affected area, class 2; Registered park or garden 200 m away: Markyatecell Park; Inside the Markyate built-up area; Green belt 75 m away: London; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 3, but it predates the buildings here and the current map does not class it as farmland.
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
Dacorum
Application type
Works to Tree(s) in Conservation Area
Postcode
AL3 8PB
Received
26 Aug 2026
Validated
26 Aug 2026
Ward
Watling
Parish
Markyate Parish Council
Case officer
Show
Decision
Raise No Objection
Decision date
2 Sept 2026
Applicant
Show

How this decision compares

Decided in 7 days from validation, 5 days faster than Dacorum's median of 12 for tree and landscaping works. Approved, as 98% of tree and landscaping works here are.

97%decided within 8 weeks
98%approved
243decided in the last year

Plota live figures for tree and landscaping works decided by Dacorum in the last twelve months, from validation. Dacorum decision record →

Public comments

No public comments yet.

Last counted 30 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Env. assessment
No
Dacorum
Planning Authority Score
7.3/10
Good
#51 of 296 councils
Relevant to this application:
Other decisions

Dacorum is faster than most councils at deciding householder applications, ranking #50 out of 296. Only 22% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly more likely to be approved here (91%) than the national average (90%).

Faster than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Dacorum decision statistics
Based on MHCLG data, the year to March 2026
88%
Overall approval rate
Above avg (87%) #150 of 296
91%
Householder approved
Above avg (90%) #171 of 296
78%
Decided in 8 weeks
Above avg (63%) #50 of 296
22%
Extended time limit
Below avg (41%) #22 of 296
76%
Minor dwellings approved
127 decided (1-9 homes)
79%
Major dwellings approved
14 decided (10+ homes)
71%
Change of use approved
21 decided
1,130
Total decisions
132 refused in the year to March 2026

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use