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Get started21 Allt Yr Yn Close is a three-bedroom semi-detached house in Newport (NP20 5ED). It has a recorded floor area of 114 m² (around 1227 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (May 2016) shows an E (score 51), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since May 2009. Between certificates, roof efficiency went from Very Poor to Average and lighting went from Poor to Average. The recommended improvements would lift it to C (score 75), a 2-band jump. The latest certificate is from May 2016, so improvements made since then won't be reflected. Other recorded features include a loft. Period features are noted in the property record. Records show the property has been extended at some point in its history.
Sale prices here have outpaced Newport HPI: 2.8% per year against 0% for the wider region. Today's modelled estimate of £360,000 sits 61.8% above the 2016 sale of £222,500. At 114 m² it's 20% larger than the typical home in the postcode (95 m² median across 25 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). On the market in August 2016 and unlisted since — roughly 10 years.
21 Allt Yr Yn Close'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This certificate is over 10 years old and is no longer valid.Expired 12 May 2026
21 Allt Yr Yn Close valuation sits well clear of the typical sold price in this postcode.
£360,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.8% per year over 13 years.
£222,500
Growth on file: 2.8% per year over 13 years.
CO₂ Emissions for 21 Allt Yr Yn Close lags the street by a wide margin.
Price per m²
£1,952
Street avg £2,422
Floor Area
114 m²
Street avg 95 m²
Habitable Rooms
6 rooms
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Allt-yr-yn Tennis Club — bus stop.
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Roof insulation improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
31 August 2016Most recent
£222,500
+43.5%over 13 years29 August 2003
£155,000
Median price across the last 5 sales in NP20 5ED: £332,000 (2025–2021).
Street avg 6 rooms
CO₂ Emissions
6.6 t/year
Street avg 4.2 t/year
NP20 5QH
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