12 Sir Briggs Avenue, Duffryn, Newport, NP10 8AU
About 12 Sir Briggs Avenue
12 Sir Briggs Avenue is a four-bedroom detached house in Duffryn, Newport, Newport (NP10 8AU). It has a recorded floor area of 113 m² (around 1216 sq ft), construction records dating it to 2012-2021 and council tax band E. The latest certificate (November 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).
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. On the market in June 2015 and unlisted since — roughly 11 years. Today's modelled estimate of £359,000 is 49.6% above the 2015 sale price.
What this property has
Inside
- Bedrooms4
- Bathrooms2
Energy performance
12 Sir Briggs Avenue sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Floor insulation added or improved
Planning history
12 Sir Briggs Avenue has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
12 Sir Briggs Avenue valuation sits well clear of the typical sold price in this postcode.
£359,000
Modelled from EPC, postcode comparables.
£239,995
Recorded with HM Land Registry.
Sales timeline
28 June 2015Most recent
£239,995
Median price across the last 5 sales in NP10 8AU: £300,000 (2025–2022).
Nearby sales in NP10 8AU
1 Sir Briggs Avenue, Duffryn, Newport, NP10 8AU
Sold Jul 2025
£305,0006 Sir Briggs Avenue, Duffryn, Newport, NP10 8AU
Sold May 2025
£230,0003 Sir Briggs Avenue, Duffryn, Newport, NP10 8AU
Sold Apr 2023
£375,0008 Sir Briggs Avenue, Duffryn, Newport, NP10 8AU
Sold Sept 2022
£300,00018 Sir Briggs Avenue, Duffryn, Newport, NP10 8AU
Sold Jan 2022
£268,000
Versus other Sir Briggs Avenue homes
12 Sir Briggs Avenue is notably below the street on co₂ emissions.
Price per m²
£2,124
Street avg £2,363
Floor Area
113 m²
Street avg 101 m²
CO₂ Emissions
2.0 t/year
Street avg 1.6 t/year
Years Held
11 years
Street avg 8 years
Similar properties nearby
1 Caernarvon Drive, Rhiwderin
NP10 8QT
1 Blanche Close
NP10 8QF
1 Cedar Gardens, Duffryn
NP10 8AW
1 Buccaneer Way
NP10 8ER
1 Brigantine Grove
NP10 8ET
1 Builth Close
NP10 8HU
1 Buccaneer Grove
NP10 8EQ
1 Beaumaris Close, Rhiwderin
NP10 8QW
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Steeplechase Road — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.







