Our Data Sources
Treffynnon, Monmouth has no records in the the Land Registry and a single entry in the EPC database dated March 2020.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate Treffynnon, Monmouth would be worth £397,073, with a potential rental value of £1,204 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £351,693, with a rental value of £1,066 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
Treffynnon, Monmouth occupies a 946 m2 plot as recorded by HM Land Registry.
Of the 14 other houses in this postcode, 13 have recorded plot sizes, and this one ranks as the 8th largest.
Energy Efficiency
Treffynnon, Monmouth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 25 Mar 2020.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 103 sales of comparable properties within 1.4 kilometres of Treffynnon, Monmouth across the last 2 years.
Most recently, 39, Duchess Road, Monmouth, NP25 3HT, a freehold house, sold at £366,000 on the 8th January 2025.
Read more about house prices in NP25.
- Sold Jan 2025£366,000 | 3 Bed House39, Duchess Road, Monmouth, NP25 3HT39, Duchess Road, Monmouth, NP25 3HT
- Sold Jan 2022£375,000 | 3 Bed House21, Auden Close, Monmouth, NP25 3NW21, Auden Close, Monmouth, NP25 3NW
- Sold Dec 2021£365,000 | 3 Bed House20, Duchess Road, Monmouth, NP25 3HT20, Duchess Road, Monmouth, NP25 3HT
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks Treffynnon, Monmouth as the 11th largest and the 11th most expensive of the 14 addresses on Lower Prospect Road, Osbaston, Monmouth, NP25.
Against the NP25 postcode district average, it is £42k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Lydney|17.7 km away
- Abergavenny|20.0 km away
- Chepstow|20.6 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












