Our Data Sources
31, St. Mary Street, Caerphilly has no records in the Land Registry and a single entry in the EPC database dated June 2026.
We combine this information with public data 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 31, St. Mary Street, Caerphilly, we estimate a market value of £216,870 and a rental value of £1,382 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £192,085 and £1,224 per month respectively.
Plot Size
HM Land Registry records the plot of land for 31, St. Mary Street, Caerphilly as measuring 142 m2.
That makes it the 8th largest plot in the postcode, where 11 of the 31 other houses have recorded plot data.
Energy Efficiency
31, St. Mary Street, Caerphilly has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 11 Jun 2026.
The property is connected to mains gas and has high performance glazing. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Since 2007 131 properties similar to 31, St. Mary Street, Caerphilly have sold within a radius of 780 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 8th April 2026, was 8, Church Street, Caerphilly, CF83 8EB, a freehold house which sold for £250,000.
Read more about house prices in CF83.
- Sold Apr 2026£250,000 | 3 Bed House8, Church Street, Caerphilly, CF83 8EB8, Church Street, Caerphilly, CF83 8EB
- Sold Jul 2025£185,000 | 3 Bed House31, Bryntirion, Caerphilly, CF83 8AW31, Bryntirion, Caerphilly, CF83 8AW
- Sold May 2025£187,000 | 3 Bed House30, Glebe Street, Caerphilly, CF83 8AD30, Glebe Street, Caerphilly, CF83 8AD
- Sold Feb 2025£230,000 | 3 Bed House29, Pandy Road, Caerphilly, CF83 8EH29, Pandy Road, Caerphilly, CF83 8EH
- Sold Dec 2024£177,000 | 3 Bed House8, Bryngwyn Street, Caerphilly, CF83 8BA8, Bryngwyn Street, Caerphilly, CF83 8BA
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £197,883, ranging from £193,809 to £203,339.
- 33 St. Mary Street
3 Bed House | 4 m | Est. Value: £199,860
- 23 St. Mary Street
3 Bed House | 7 m | Est. Value: £203,339
- 2A St. Mary Street
3 Bed House | 7 m | Est. Value: £194,524
- 41 St. Mary Street
3 Bed House | 7 m | Est. Value: £193,809
Location Comparison
Of the 31 addresses on St. Mary Street, Bedwas, Caerphilly, CF83, 31, St. Mary Street, Caerphilly comes out as the 14th largest and the 16th most expensive in our analysis of the public data.
It is also £26k less expensive than the average property across the CF83 district.
More reading links
Schools Nearby
Public Transport Nearby
- Energlyn & Churchill Park|2.3 km away
- Llanbradach|2.5 km away
- Caerphilly|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 available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












