18, Dilwyn Street
18, Dilwyn Street
Description & Estimates







18, Dilwyn Street, Mountain Ash is recorded publicly as a period freehold house across 871 ft2 of internal area, sitting on a 72.6 m2 plot.
Locally, houses of this size normally have 3 bedrooms with a garden.
Our estimate of the sale value of 18, Dilwyn Street, Mountain Ash is £91,952 and its rental estimate is £634 per month, given the available information and assuming reasonable condition.
Dilwyn Street, Mountain Ash, CF45 falls within the CF45 postal district.
Our Data Sources
18, Dilwyn Street, Mountain Ash has 2 entries in the Land Registry , most recently in June 2016 and a single entry in the EPC database dated November 2015.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 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 18, Dilwyn Street, Mountain Ash, we estimate a market value of £96,549 and a rental value of £665 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £85,515 and £589 per month respectively.
Recent Market Change
Over the last year, 18, Dilwyn Street, Mountain Ash has seen its estimated sale value rise by £2,263 (2.5%) and its estimated rental value move up by £25 per month (3.9%). This results in an estimated gross rental yield of 8.3%.
Plot Size
HM Land Registry records the plot of land for 18, Dilwyn Street, Mountain Ash as measuring 73 m2.
That makes it the 42nd largest plot in the postcode, where 46 of the 47 other houses have recorded plot data.
Energy Efficiency
18, Dilwyn Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 11 Nov 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 18, Dilwyn Street, Mountain Ash completed on 15th June 2016 at £25,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
Values of comparable properties have risen by 118.1% over the period since June 2016.
- Sold Jun 2016£25,000
- Sold Nov 2014£16,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 18, Dilwyn Street, Mountain Ash have sold within a radius of 800 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 30th January 2026, was 30, Penybryn Terrace, Mountain Ash, CF45 3TJ, a freehold house which sold for £100,000.
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 47 addresses on Dilwyn Street, Mountain Ash, CF45, 18, Dilwyn Street, Mountain Ash comes out as the 5th largest and the 5th most expensive in our analysis of the public data.
It is also £66k less expensive than the average property across the CF45 district.
More reading links
Schools Nearby
Public Transport Nearby
From 18, Dilwyn Street, Mountain Ash, the nearest station is Penrhiwceiber, 300 metres away.
- 300mPenrhiwceiber
- 1.5kmMountain Ash
- 2.7kmMerthyr Vale
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.

