9 Castle Street, Newport, NP20 2DF
About 9 Castle Street
9 Castle Street is a mid-terrace house in Newport (NP20 2DF). It has a recorded floor area of 102 m² (around 1098 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (April 2025) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since October 2013. Between certificates, roof efficiency went from Average to Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 80).
It hasn't traded since February 1998, a hold of 28 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £158,000 sits 229.2% above the 1998 sale of £48,000. On a £-per-square-foot basis, the last sale (£44/sq ft) was about 54.5% below the postcode norm.
Everything you need to know about 9 Castle Street
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
Roof insulation improved
More low energy lighting installed
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Planning history
9 Castle Street has no planning applications on record.
But the area is active
7 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
9 Castle Street's estimated value is more than triple its earliest registered sale price (1998).
£158,000
Modelled from EPC, postcode comparables.
£48,000
Recorded with HM Land Registry.
Sales timeline
6 February 1998Most recent
£48,000
Median price across the last 5 sales in NP20 2DF: £135,000 (2025–2019).
Nearby sales in NP20 2DF
Versus other Castle Street homes
On habitable rooms, 9 Castle Street runs well behind the street norm.
Price per m²
£471
Street avg £932
Floor Area
102 m²
Street avg 102 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
4.1 t/year
Street avg 5.0 t/year
Everything you need to know about 9 Castle Street
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
Similar properties nearby
The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Library — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.