21 Castle Street
NP15 1BU, Monmouthshire. A freehold terraced house.
sold 26 September 2025
The only sale of this house recorded since January 2023.
3rd of 6terraced house sales on the street, by price
+11%above the typical NP15 terraced house
80%of NP15 terraced houses sold for less
Against NP15
+£39,000
Above the typical NP15 terraced house, £341,000, Sep 2025 to Aug 2026.
NP15 typical
£341,000 This house
£380,000
£341,000 This house
£380,000
£200k£450k
On Castle Street
3rd of 6
Terraced house sales since 2023, by price. The street's typical is £360,000.
This house
£380,000
Street typical
£360,000
Highest sale
£730,000
NP15 by year
£338,000
Typical NP15 terraced house in 2026 so far, up 12.5% since 2023.
£300k2023
£249k2024
£325k2025
£338k2026
The house
From its energy certificate, Mar 2024.
Energy ratingB → A
HeatingGas boiler
WindowsDouble glazed
Built2024
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