11a, Flat 3, Griffin Street, Newport, NP20 1GN
About 11a
11a is a property in Newport (NP20 1GN). It has a recorded floor area of 92 m² (around 990 sq ft) and construction records dating it to before 1900. At 92 m² this is the largest unit on EPC record across 11a (51–92 m²). The building's EPC ratings span F to E, with this unit at the top. On EPC score it ranks first in the building (48 versus a worst of 33). The latest certificate (June 2026) shows an E (score 48), well below the UK norm with real room to improve. When first surveyed in July 2016 the rating was F, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Very Poor to Average and main heating went from Very Poor to Poor; while wall efficiency dropped from Good to Poor and roof efficiency dropped from Very Good to Good. The recommended improvements would lift it to C (score 73), a 2-band jump. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition.
At 92 m² the property is well over the postcode median (67 m² across 4 EPCs), placing it in the larger end of the local stock.
Everything you need to know about 11a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
11a's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 8 June 2036
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water system upgraded
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
11a 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
11a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£140,000
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.
Versus other Griffin Street homes
EPC Rating for 11a runs comfortably ahead of the street norm.
EPC Rating
48 (E)
Street avg 37 (F)
Floor Area
92 m²
Street avg 68 m²
CO₂ Emissions
1.5 t/year
Street avg 3.8 t/year
Everything you need to know about 11a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee
The data behind every report
Similar properties nearby
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
321/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 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.