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16 St. James Mansions, Cardiff is recorded publicly as a modern leasehold apartment across 635 ft2 of internal area.
Locally, apartments of this size normally have 2 bedrooms with a balcony.
Our estimate of the sale value of 16 St. James Mansions, Cardiff is £135,992 and its rental estimate is £989 per month, given the available information and assuming reasonable condition.
St. James Mansions, Mount Stuart Square is a residential building on Mount Stuart Square, Cardiff, CF10 and falls within the CF10 postal district.
16 St. James Mansions, Cardiff has 21 entries in the Land Registry , most recently in July 2015 and a single entry in the EPC database dated April 2025.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
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 16 St. James Mansions, Cardiff, we estimate a market value of £142,792 and a rental value of £1,038 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £126,472 and £920 per month respectively.
Over the last year, 16 St. James Mansions, Cardiff has seen its estimated sale value decrease by £785 (0.6%) and its estimated rental value grow by £32 per month (3.2%). This results in an estimated gross rental yield of 8.7%.
16 St. James Mansions, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 28 Apr 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Room heaters, electric.
The most recent sale of 16 St. James Mansions, Cardiff completed on 31st July 2015 at £139,000 and was recorded by HM Land Registry as a leasehold flat.
Since 1995 the property has sold twice.
Values of comparable properties have risen by 10.0% over the period since July 2015.
Over the past 2 years 3 properties similar to 16 St. James Mansions, Cardiff have sold within a radius of 340 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 30th September 2024, was Flat 4, Marine House, Mount Stuart Square, Cardiff, CF10 5DP, a leasehold flat which sold for £172,500.
Read more about house prices in CF10.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
Of the 221 addresses on Mount Stuart Square, Cardiff, CF10, 16 St. James Mansions, Cardiff comes out as the 146th largest and the 183rd most expensive in our analysis of the public data.
It is also £53k less expensive than the average property across the CF10 district.
From 16 St. James Mansions, Cardiff, the nearest station is Cardiff Bay, 200 metres away.
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast broadband is available in the area.
The flood risk here is rated very low, based on Environment Agency data.
The recent census recorded whether a resident owned or rented their home.
In the area around 16 St. James Mansions, Cardiff, 51.2% of property is privately rented and 23.3% is privately owned with a mortgage.
The graph below shows how this compares to Wales and the rest of England & Wales.
The recent census recorded the highest level of education achieved by residents in the local area.
In the area around 16 St. James Mansions, Cardiff, 15.2% of residents are recorded as possessing school level qualifications and 52.9% as possessing degree level qualifications.
The graph below shows how this compares to Wales and the rest of England & Wales.
The most recent census in 2021 recorded the age of all UK residents.
In the area around 16 St. James Mansions, Cardiff, the average age was 33.7 and the most common age was 27.
The graph below shows how this compares to Wales and the rest of England & Wales
The recent census recorded whether a property was a primary or secondary home for the resident.
In the area around 16 St. James Mansions, Cardiff, 0.0% of property was a second home.
Comparison figures for Wales and the rest of England & Wales are listed below.
The recent census recorded the number of cars registered in each household.
In the area around 16 St. James Mansions, Cardiff, there are an average of 0.7 cars per household.
See below for how this compares to Wales and the rest of England & Wales.