Arley House, Tatchbury Lane, Winsor, Southampton, SO40 2GZ
About Arley House
Arley House is a detached house in Winsor, Southampton, Southampton (SO40 2GZ). It has a recorded floor area of 338 m² (around 3638 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (August 2021) shows an E (score 52), well below the UK norm with real room to improve. Earlier certificates rated it D (July 2013); the latest reading is one band lower. Between certificates, roof efficiency went from Average to Good and lighting went from Average to Very Good; while wall efficiency dropped from Good to Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 76), a 2-band jump. Main heating runs on oil.
At 338 m² the property is well over the postcode median (188 m² across 5 EPCs), placing it in the larger end of the local stock. 3 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, a porch and a conservatory, meaningful when judging how the property has evolved. Across 2014–2021, sale prices on this property compounded at 1.9% per year. Today's modelled estimate of £1,355,000 is 17.8% above the 2021 sale price. Sold September 2021 for £1,150,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Energy performance
Arley House's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 8 August 2031
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Loft insulation upgraded to recommended levels
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property is a large detached home over 300m², has been extended more than once, and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £1,645 · Includes VAT
Planning history
Multiple extension applications run across more than a decade of planning history at Arley House.
3 applications on record at Arley House, Tatchbury Lane, Winsor, Southampton, SO40 2GZ
- Jul 2004ConservatoryFullOutcome in report
Front conservatory
Extension- Documents
- 4 docs on file
- Reference
- 04/81567
- More recent applications — locked
- PorchJun 2015Decision
- ExtensionJun 2015Decision
Unlock Arley House, Tatchbury Lane, Winsor, Southampton, SO40 2GZ's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (3 on record)
- All 3 applications on this property in full, plus 2 notable nearby
- The 22 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
Latest sale on Arley House was the highest on Land Registry record across the postcode.
£1,355,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.9% per year over 7 years.
£1,150,000
Growth on file: 1.9% per year over 7 years.
Sales timeline
29 September 2021Most recent
£1,150,000
+15.0%over 7 years25 May 2014
£1,000,000
Median price across the last 5 sales in SO40 2GZ: £536,500 (2025–2017).
Versus other Tatchbury Lane homes
Arley House is notably below the street on price per m².
Price per m²
£3,402
Street avg £4,733
Floor Area
338 m²
Street avg 194 m²
Habitable Rooms
7 rooms
Street avg 7 rooms
CO₂ Emissions
15.0 t/year
Street avg 8.1 t/year
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
229/mo
Falling year-on-year across the wider district.
Nearest stop
0.6 km
The White Horse — bus stop.
Closest school
0.6 km
Netley Marsh Church of England Infant School. 11 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
49.3dB

Night-time· 23:00 – 07:00
41.3dB







