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Get started15 Castle Street is a mid-terrace house in Newport (NP20 2DF). It has a recorded floor area of 128 m² (around 1378 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (March 2016) shows an E (score 40), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since December 2013. Between certificates, roof efficiency dropped from Average to Poor and lighting dropped from Very Good to Very Poor. The recommended improvements would lift it to B (score 85), a 3-band jump. The latest certificate is from March 2016, so improvements made since then won't be reflected.
At 128 m² it's 25.5% larger than the typical home in the postcode (102 m² median across 19 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 79% of similar EPCs).
15 Castle Street's carbon output runs well above what efficient homes in the postcode produce.
This certificate is over 10 years old and is no longer valid.Expired 07 Mar 2026
15 Castle Street has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£139,000
Modelled from EPC, postcode comparables.
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.
EPC Rating for 15 Castle Street lags the street by a wide margin.
EPC Rating
40 (E)
Street avg 61 (D)
Floor Area
128 m²
Street avg 100 m²
CO₂ Emissions
9.1 t/year
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Library — bus stop.
Median price across the last 5 sales in NP20 2DF: £135,000 (2025–2019).
Street avg 4.7 t/year
Habitable Rooms
6 rooms
Street avg 5 rooms
NP20 2QR