1 Blenheim House, Admiralty Road, Portsmouth, PO1 3GR
About 1 Blenheim House
1 Blenheim House is an end-of-terrace house in Portsmouth (PO1 3GR). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 2003-2006 and council tax band A. At 37 m² this is the 2nd smallest of 3 units on EPC record in the building, where floor areas span 34–63 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (59 versus a best of 76). The latest certificate (October 2020) shows a D (score 59), a step below the typical UK home. Earlier certificates rated it C (January 2009); the latest reading is one band lower. Between certificates, lighting went from Poor to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 78). Main heating runs on electricity.
Untraded for 17 years, with the last transfer in April 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £116,000 is 45% above the 2009 sale price. On a £-per-square-foot basis, the last sale (£201/sq ft) was about 19.9% below the postcode norm.
Everything you need to know about 1 Blenheim House
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Floor insulation added or improved
More low energy lighting installed
Hot water efficiency decreased
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
1 Blenheim House has no planning applications on record.
But the area is active
3 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£116,000
Modelled from EPC, postcode comparables.
£80,000
Recorded with HM Land Registry.
Sales timeline
22 April 2009Most recent
£80,000
Median price across the last 4 sales in PO1 3GR: £150,000 (2019–2009).
Versus other Admiralty Road homes
1 Blenheim House is notably below the street on epc rating.
Years Held
17 years
Street avg 14 years
EPC Rating
59 (D)
Street avg 73 (C)
Floor Area
37 m²
Street avg 32 m²
CO₂ Emissions
3.6 t/year
Street avg 2.1 t/year
Everything you need to know about 1 Blenheim House
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Historic Dockyard — bus stop.
Closest school
0.2 km
St George's Beneficial Church of England (Voluntary Controlled) Primary School. 33 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
45.7dB
Night-time· 23:00 – 07:00
38.5dB