21, John Street
21, John Street
Description & Estimates
Public records show 21, John Street, Porth to be a period freehold house with 828 ft2 of internal area, sitting on a 111 m2 plot.
In this area, houses of this size normally have 3 bedrooms with a garden.
21, John Street, Porth has an estimated sale value of £110,267 and an estimated rental value of £723 per month, assuming reasonable condition and based on the information available.
John Street, Ynyshir, Porth, CF39 lies within the CF39 postal district.
Our Data Sources
21, John Street, Porth has 2 entries in the Land Registry , most recently in December 2025 and a single entry in the EPC database dated December 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
In very good condition, we estimate 21, John Street, Porth would be worth £115,781, with a potential rental value of £760 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £102,548, with a rental value of £673 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Recent Market Change
The estimated sale value of 21, John Street, Porth has increased by £2,276 (2.1%) over the last year. During the same period, its estimated monthly rental value has grown by £28 (3.9%). The property's estimated gross yield is currently 7.9%.
Plot Size
21, John Street, Porth occupies a 111 m2 plot as recorded by HM Land Registry.
Of the 25 other houses in this postcode, 22 have recorded plot sizes, and this one ranks as the 11th largest.
Energy Efficiency
21, John Street, Porth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 14 Dec 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
21, John Street, Porth last changed hands on 17th December 2025, selling for £100,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 0.4% since December 2025.
- Sold Dec 2025£100,000
- Sold Dec 2015£65,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 650 metres of 21, John Street, Porth across the last 2 years.
Most recently, 20, John Street, Porth, CF39 9SD, a freehold house, sold at £82,500 on the 28th August 2024.
Read more about house prices in CF39.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Our analysis of the public data ranks 21, John Street, Porth as the 29th largest and the 21st most expensive of the 35 addresses on John Street, Ynyshir, Porth, CF39.
Against the CF39 postcode district average, it is £35k less expensive than the typical property.
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Schools Nearby
Public Transport Nearby
Porth station is the nearest stop to 21, John Street, Porth at 100 metres away.
- 100mPorth
- 1.9kmTrehafod
- 2.1kmDinas (Rhondda)
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.
