Griffin House, Flat 11, Griffin Street, Newport, NP20 1GL
About Griffin House
Griffin House is a detached house in Newport (NP20 1GL). It has a recorded floor area of 53 m² (around 570 sq ft), construction records dating it to 2021 and council tax band A. The latest certificate (November 2021) shows a D (score 56), a step below the typical UK home. The rating has held steady at D across 2 certificates since September 2009. Between certificates, wall efficiency went from Very Poor to Very Good, window efficiency went from Good to Very Good and lighting went from Poor to Very Good; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Average to Very Poor. Main heating runs on electricity: electricity, unspecified tariff. At 53 m² this is the 16th smallest of 17 units on EPC record in Griffin House, where floor areas span 19–87 m². The building's EPC ratings span E to C across 17 units on file.
At 53 m² the property is well over the postcode median (34 m² across 44 EPCs), placing it in the larger end of the local stock.
Everything you need to know about Griffin House
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Hot water system changed
High performance glazing installed
Cavity wall insulation installed
More low energy lighting installed
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Planning history
Griffin House has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Griffin House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£129,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 4 sales in NP20 1GL: £138,500 (2019–2004).
Versus other Griffin Street homes
On epc rating, Griffin House runs well behind the street norm.
EPC Rating
56 (D)
Street avg 68 (D)
Floor Area
53 m²
Street avg 40 m²
CO₂ Emissions
2.5 t/year
Street avg 1.7 t/year
Everything you need to know about Griffin 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
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Market Square 16 — bus station.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.