Our Data Sources
31, Collwyn Street, Porth has 51 entries in the Land Registry, most recently in January 2025 and a single entry in the EPC database dated May 2016.
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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
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 31, Collwyn Street, Porth, we estimate a market value of £149,526 and a rental value of £921 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £132,437 and £816 per month respectively.
Plot Size
HM Land Registry records the plot of land for 31, Collwyn Street, Porth as measuring 136 m2.
That makes it the 7th largest plot in the postcode, where 14 of the 22 other houses have recorded plot data.
Energy Efficiency
31, Collwyn Street, Porth has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 24 May 2016.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 31, Collwyn Street, Porth completed on 31st January 2025 at £149,950 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 5 times.
Values of comparable properties have dropped by 20.4% over the period since January 2025.
- Sold Jan 2025£149,950
- Sold Aug 2016£97,950
- Sold Jun 2006£83,000
Similar Properties Sold Nearby
Since 2007 52 properties similar to 31, Collwyn Street, Porth have sold within a radius of 2.4 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 10th February 2026, was 7, Garth Street, Porth, CF39 8BG, a leasehold house which sold for £147,000.
Read more about house prices in CF39.
- Sold Feb 2026£147,000 | 3 Bed House7, Garth Street, Porth, CF39 8BG7, Garth Street, Porth, CF39 8BG
- Sold Jan 2026£148,000 | 3 Bed House5, Collwyn Street, Porth, CF39 8BH5, Collwyn Street, Porth, CF39 8BH
- Sold Oct 2025£160,000 | 3 Bed House35, Collwyn Street, Porth, CF39 8BH35, Collwyn Street, Porth, CF39 8BH
- Sold Apr 2025£155,000 | 3 Bed House5, Tylcha Fach Terrace, Porth, CF39 8BB5, Tylcha Fach Terrace, Porth, CF39 8BB
- Sold Dec 2022£135,000 | 3 Bed House6, Elwyn Street, Porth, CF39 8BL6, Elwyn Street, Porth, CF39 8BL
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £151,300, ranging from £136,246 to £178,128.
- 29 Collwyn Street
3 Bed House | 4 m | Est. Value: £153,337
- 33 Collwyn Street
3 Bed House | 7 m | Est. Value: £148,885
- 35 Collwyn Street
3 Bed House | 11 m | Est. Value: £144,288
- 39 Collwyn Street
3 Bed House | 24 m | Est. Value: £155,081
- 41 Collwyn Street
3 Bed House | 27 m | Est. Value: £161,863
Location Comparison
Of the 22 addresses on Collwyn Street, Tonyrefail, Porth, CF39, 31, Collwyn Street, Porth comes out as the 22nd largest and the 22nd most expensive in our analysis of the public data.
It is also £6k less expensive than the average property across the CF39 district.
More reading links
Schools Nearby
Public Transport Nearby
- Llanharan|3.2 km away
- Pontyclun|4.6 km away
- Porth|5.6 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












