Griffin House, Flat 5, Griffin Street, Newport, NP20 1GL
About Griffin House
Griffin House is an end-of-terrace house in Newport (NP20 1GL). It has a recorded floor area of 31 m² (around 334 sq ft), construction records dating it to 1900-1929 and council tax band A. At 31 m² this is the 3rd 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, with this unit at the bottom. On EPC score it ranks last in the building (43 versus a best of 79). The latest certificate (March 2022) shows an E (score 43), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2009); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Good and lighting went from Average to Very Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would lift it to B (score 82), a 3-band jump. Main heating runs on electricity.
At 31 m² it's 15.1% smaller than the typical home in the postcode (37 m² median across 44 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
Everything you need to know about Griffin House
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Griffin House sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Hot water system changed
Single glazing replaced with double or better glazing
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has no mains gas supply, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
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.
£116,000
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
Griffin House is notably below the street on epc rating.
EPC Rating
43 (E)
Street avg 68 (D)
Floor Area
31 m²
Street avg 40 m²
CO₂ Emissions
2.7 t/year
Street avg 1.7 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
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.