Our Data Sources
33, Heol Trelyn, Blackwood has no records in the the Land Registry and a single entry in the EPC database dated February 2020.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 33, Heol Trelyn, Blackwood is in very good condition we estimate a sale value of £119,017 and a rental value of £761 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £105,415 and a rental value of £674 per month.
Plot Size
According to data from HM Land Registry, 33, Heol Trelyn, Blackwood sits on a plot of 166 m2.
We have plot size data on 16 out of 24 other houses in the postcode and 33, Heol Trelyn, Blackwood sits on the 5th largest plot.
Energy Efficiency
33, Heol Trelyn, Blackwood has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 03 Feb 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
According to the Land Registry and our network of Estate Agents, there have been 3 sales of properties similar to 33, Heol Trelyn, Blackwood within a radius of 760 metres over the last 2 years.
The most recent example is 9, St. Sannan Road, Blackwood, NP12 2QJ, a freehold house which sold for £108,000 on the 17th December 2025.
Read more about house prices in NP12.
- Sold Dec 2025£108,000 | 3 Bed House9, St. Sannan Road, Blackwood, NP12 2QJ9, St. Sannan Road, Blackwood, NP12 2QJ
- Sold Oct 2025£100,000 | 3 Bed House21, St. Sannan Road, Blackwood, NP12 2QJ21, St. Sannan Road, Blackwood, NP12 2QJ
- Sold Mar 2022£125,000 | 3 Bed House37, St. Sannan Road, Blackwood, NP12 2QJ37, St. Sannan Road, Blackwood, NP12 2QJ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Heol Trelyn, Pontllanfraith, Blackwood, NP12 has a total of 24 addresses. According to our analysis of all the public data, 33, Heol Trelyn, Blackwood is the 5th largest and the 5th most expensive property on the street.
When compared to the postcode district it is £76k less expensive than the average property in NP12.
More reading links
Schools Nearby
Public Transport Nearby
- 1.5kmHengoed
- 2.4kmPengam
- 2.9kmYstrad Mynach
Available Internet Speeds
According to recent data from Ofcom, superfast broadband is available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be very low.












