Our Data Sources
21, Hillside Avenue, Blackwood has no records in the the Land Registry and a single entry in the EPC database dated November 2022.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 21, Hillside Avenue, Blackwood, we estimate a market value of £112,080 and a rental value of £783 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £99,271 and £694 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Hillside Avenue, Blackwood as measuring 119 m2.
That makes it the 12th largest plot in the postcode, where 18 of the 26 other houses have recorded plot data.
Energy Efficiency
21, Hillside Avenue, Blackwood has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 18 Nov 2022.
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
Over the past 2 years 48 properties similar to 21, Hillside Avenue, Blackwood have sold within a radius of 1.7 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 20th April 2026, was 18 The Villas, Blackwood, NP12 0PU, a freehold house which sold for £108,000.
Read more about house prices in NP12.
- Sold Apr 2026£108,000 | 3 Bed House18 The Villas, Blackwood, NP12 0PU18 The Villas, Blackwood, NP12 0PU
- Sold Nov 2023£102,000 | 3 Bed House8 The Villas, Blackwood, NP12 0PU8 The Villas, Blackwood, NP12 0PU
- Sold Apr 2019£50,000 | 3 Bed House9, Hillside Avenue, Blackwood, NP12 0PT9, Hillside Avenue, Blackwood, NP12 0PT
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 26 addresses on Hillside Avenue, Markham, Blackwood, NP12, 21, Hillside Avenue, Blackwood comes out as the 12th largest and the 12th most expensive in our analysis of the public data.
It is also £83k less expensive than the average property across the NP12 district.
More reading links
Schools Nearby
Public Transport Nearby
- Brithdir|1.5 km away
- Bargoed|2.2 km away
- Gilfach Fargoed|2.8 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












