12, Gwernifor Street
12, Gwernifor Street
Description & Estimates







12, Gwernifor Street, Mountain Ash is recorded publicly as a period freehold house across 1,044 ft2 of internal area, sitting on a 219 m2 plot.
Locally, houses of this size normally have 3 bedrooms with a garden.
Our estimate of the sale value of 12, Gwernifor Street, Mountain Ash is £152,088 and its rental estimate is £854 per month, given the available information and assuming reasonable condition.
Gwernifor Street, Mountain Ash, CF45 falls within the CF45 postal district.
Our Data Sources
12, Gwernifor Street, Mountain Ash has a single entry in the Land Registry from August 2016 and a single entry in the EPC database dated March 2015.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high 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 12, Gwernifor Street, Mountain Ash, we estimate a market value of £159,692 and a rental value of £897 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £141,441 and £794 per month respectively.
Recent Market Change
Over the last year, 12, Gwernifor Street, Mountain Ash has seen its estimated sale value increase by £3,743 (2.5%) and its estimated rental value grow by £34 per month (3.9%). This results in an estimated gross rental yield of 6.7%.
Plot Size
HM Land Registry records the plot of land for 12, Gwernifor Street, Mountain Ash as measuring 219 m2.
That makes it the 3rd largest plot in the postcode, where 31 of the 36 other houses have recorded plot data.
Energy Efficiency
12, Gwernifor Street, Mountain Ash has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 24 Mar 2015.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 12, Gwernifor Street, Mountain Ash completed on 26th August 2016 at £105,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 78.4% over the period since August 2016.
- Sold Aug 2016£105,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 12, Gwernifor Street, Mountain Ash have sold within a radius of 660 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 3rd February 2026, was 3, Gwernifor Street, Mountain Ash, CF45 3NA, a freehold house which sold for £150,000.
Read more about house prices in CF45.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 36 addresses on Gwernifor Street, Mountain Ash, CF45, 12, Gwernifor Street, Mountain Ash comes out as the 20th largest and the 21st most expensive in our analysis of the public data.
It is also £6k less expensive than the average property across the CF45 district.
More reading links
Schools Nearby
Public Transport Nearby
From 12, Gwernifor Street, Mountain Ash, the nearest station is Mountain Ash, 600 metres away.
- 600mMountain Ash
- 1.5kmFernhill
- 1.6kmPenrhiwceiber
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.

