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Get started17 Sir Briggs Avenue is a three-bedroom semi-detached house in Duffryn, Newport, Newport (NP10 8AU). It has a recorded floor area of 69 m² (around 743 sq ft), construction records dating it to 2012-2021 and council tax band C. The latest certificate (July 2025) shows a C (score 80), near the top of the C band. Earlier certificates rated it B (June 2015); the latest reading is one band lower. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Average. The recommended improvements would push it to B (score 84).
Sale prices here have outpaced Newport HPI: 1.1% per year against 0% for the wider region. Today's modelled estimate of £246,000 is 30.2% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£254/sq ft) was about 21.3% above the typical sold price in the postcode. At 69 m² it sits well below the postcode median (112 m² across 21 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Sold May 2021 for £189,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
17 Sir Briggs Avenue sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£246,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.1% per year over 6 years.
£189,000
Growth on file: 1.1% per year over 6 years.
On floor area, 17 Sir Briggs Avenue runs well behind the street norm.
Price per m²
£2,739
Street avg £2,334
Floor Area
69 m²
Street avg 103 m²
CO₂ Emissions
1.3 t/year
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Steeplechase Road — bus stop.
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Floor insulation added or improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
17 May 2021Most recent
£189,000
+6.5%over 5 years23 June 2015
£177,495
Median price across the last 5 sales in NP10 8AU: £300,000 (2025–2022).
Street avg 1.7 t/year
Years Held
5 years
Street avg 8 years
NP10 8ES
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