Our Data Sources
12, Castle Street, Southampton has no records in the the Land Registry and a single entry in the EPC database dated September 2024.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low 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, Castle Street, Southampton, we estimate a market value of £265,766 and a rental value of £1,570 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £235,393 and £1,391 per month respectively.
Plot Size
HM Land Registry records the plot of land for 12, Castle Street, Southampton as measuring 92 m2.
That makes it the 6th largest plot in the postcode, where all 10 other houses have recorded plot data.
Energy Efficiency
12, Castle Street, Southampton has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 05 Sep 2024.
The property is connected to mains gas and has mostly double glazing. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Over the past 2 years 221 properties similar to 12, Castle Street, Southampton have sold within a radius of 340 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 22nd January 2026, was 59, Middle Street, Southampton, SO14 6HU, a freehold house which sold for £250,000.
Read more about house prices in SO14.
- Sold Jan 2026£250,000 | 3 Bed House59, Middle Street, Southampton, SO14 6HU59, Middle Street, Southampton, SO14 6HU
- Sold Nov 2025£290,000 | 3 Bed House43, Middle Street, Southampton, SO14 6HB43, Middle Street, Southampton, SO14 6HB
- Sold May 2025£273,000 | 3 Bed House17, Castle Street, Southampton, SO14 6GZ17, Castle Street, Southampton, SO14 6GZ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 43 addresses on Castle Street, Southampton, SO14, 12, Castle Street, Southampton comes out as the 16th largest and the 25th most expensive in our analysis of the public data.
It is also £54k more expensive than the average property across the SO14 district.
More reading links
Schools Nearby
- Bevois Town Primary School300 m away
- Mount Pleasant Juniors300 m away
- Mount Pleasant Infants500 m away
- St Anne's Catholic School500 m away
- Upper Shirley High School2.3 km away
- Bitterne Park School2.5 km away
More reading links
Public Transport Nearby
- St Denys|1.0 km away
- Southampton Central|1.4 km away
- Bitterne|1.5 km away
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.












