6 Yeomans Drive Aston Hertfordshire SG2 7EJ Data via plota.co.uk

3/26/0672/CLPO - CL Proposed Operations Approved

Proposal

Certificate of Lawfulness to extend patio to rear of swimming pool as a base for a proposed outside sauna Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
12 May 2026
✓
Validated
27 May 2026
✓
Approved
20 Jul 2026

Approved on 20 Jul 2026 · Delegated Decision · Last checked 21 Jul 2026

Site constraints 6

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 ↗
Aston 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.
Council document ↗
3 listed buildings within 150 m
Nearest: The Coach House, Grade II, 15 m away · 1 Grade II*, 2 Grade II
The site itself is not listed. 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 all 3 with distances
Historic England ↗
Also on the record
Radon affected area, class 2; Inside the Aston (East Hertfordshire) built-up area; 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.

Sales history 5

Last sold for £1,599,550 in December 2024. Detached house, freehold.

6 December 2024£1,599,550
16 January 2017£1,200,000
1 November 2013£950,000
2 May 2008£838,000
19 June 1995£194,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area400 m² (4,306 sq ft)
Energy ratingD (64 out of 100), could reach C
PropertyDetached house, 10 habitable rooms
Built1967 to 1975
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in October 2024, the latest held for this property. The building may have changed since. View the certificate

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Important details

Application type
CL Proposed Operations
Postcode
SG2 7EJ
Received
12 May 2026
Validated
27 May 2026
Ward
Aston, Datchworth & Walkern
Parish
Aston Parish Council
Case officer
Show
Target decision
22 Jul 2026
Decision
CL Proposed Grant
Decision date
20 Jul 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Jonathan Metcalfe Architect

How this decision compares

Decided in 54 days from validation, about the council's usual 56 days. Approved, as 85% of extensions here are.

70%decided within 8 weeks
85%approved
651decided in the last year

Plota live figures for extensions decided by East Hertfordshire in the last twelve months, from validation. East Hertfordshire decision record →

Consultation & key dates

Alt. reference
PP-14928240
Planning Portal ref
PP-14928240
Statutory expiry
22 Jul 2026
Env. assessment
No
East Hertfordshire
Planning Authority Score
4.9/10
Below average
#152 of 296 councils
Relevant to this application:
Householder decisions

East Hertfordshire is faster than most councils at deciding householder applications, ranking #93 out of 296. East Hertfordshire is also one of the strictest councils - it refuses more householder applications than almost any other, with only 84% approved vs 90% nationally.

One of the strictest councils
only 84% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
East Hertfordshire decision statistics
Based on MHCLG data, the year to March 2026
81%
Overall approval rate
Below avg (87%) #256 of 296
84%
Householder approved
Below avg (90%) #256 of 296
73%
Decided in 8 weeks
Above avg (63%) #93 of 296
36%
Extended time limit
Below avg (41%) #109 of 296
53%
Minor dwellings approved
128 decided (1-9 homes)
82%
Major dwellings approved
11 decided (10+ homes)
94%
Change of use approved
36 decided
1,184
Total decisions
223 refused in the year to March 2026

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.