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Get started21 Elm Avenue is a semi-detached house in Undy, Caldicot, Caldicot (NP26 3EX). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (February 2026) returns a high B (score 85), putting the home a stone's throw from an A rating. The rating has held steady at B across 2 certificates since June 2012. Between certificates, roof efficiency went from Good to Very Good and lighting went from Good to Very Good. This certificate was lodged in the last six months, so the rating reflects current condition.
At 47 m² it sits well below the postcode median (80 m² across 18 EPCs), making it one of the more compact homes locally.
21 Elm Avenue's carbon output is low for the local stock.
21 Elm Avenue has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£189,000
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 21 Elm Avenue runs comfortably ahead of the street norm.
EPC Rating
85 (B)
Street avg 69 (C)
Floor Area
47 m²
Street avg 80 m²
CO₂ Emissions
1.2 t/year
Crime
1/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Elm Avenue — bus stop.
Changes detected from historical EPC data
Roof insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Median price across the last 5 sales in NP26 3EX: £245,000 (2022–2015).
Street avg 3.0 t/year
Habitable Rooms
2 rooms
Street avg 4 rooms