Our Data Sources
3, Union Close, Portsmouth has 2 entries in the Land Registry, most recently in December 2018 and a single entry in the EPC database dated January 2024.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 3, Union Close, Portsmouth is in very good condition we estimate a sale value of £453,005 and a rental value of £2,240 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £401,233 and a rental value of £1,984 per month.
Plot Size
According to data from HM Land Registry, 3, Union Close, Portsmouth sits on a plot of 319 m2.
We have plot size data on 6 out of 6 other houses in the postcode and 3, Union Close, Portsmouth sits on the largest plot.
Energy Efficiency
3, Union Close, Portsmouth has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 30 Jan 2024.
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
According to HM Land Registry, 3, Union Close, Portsmouth was last sold on 7th December 2018 for £415,000 and was recorded as a freehold house.
The property has had 2 sales since 1995.
Since December 2018, the market for similar properties has dropped by 7.5%.
- Sold Dec 2018£415,000
- Sold Jun 2016£335,995
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 51 sales of properties similar to 3, Union Close, Portsmouth within a radius of 490 metres since 2014.
The most recent example is 2, Catherington Place, Portsmouth, PO3 6GN, a freehold house which sold for £382,000 on the 17th April 2026.
Read more about house prices in PO3.
- Sold Apr 2026£382,000 | 4 Bed House2, Catherington Place, Portsmouth, PO3 6GN2, Catherington Place, Portsmouth, PO3 6GN
- Sold Dec 2025£375,000 | 4 Bed House8, The Parkway, Portsmouth, PO3 6GQ8, The Parkway, Portsmouth, PO3 6GQ
- Sold Sep 2025£510,000 | 4 Bed House53, Union Road, Portsmouth, PO3 6GB53, Union Road, Portsmouth, PO3 6GB
- Sold Sep 2025£425,000 | 4 Bed House104, Union Road, Portsmouth, PO3 6GF104, Union Road, Portsmouth, PO3 6GF
- Sold Mar 2025£395,000 | 4 Bed House9, The Parkway, Portsmouth, PO3 6GQ9, The Parkway, Portsmouth, PO3 6GQ
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 £336,168, ranging from £281,381 to £447,840.
- 2 Union Close
3 Bed House | 9 m | Est. Value: £328,359
- 4 Union Close
3 Bed House | 10 m | Est. Value: £332,526
- 1 Union Close
3 Bed House | 14 m | Est. Value: £338,759
- 5 Union Close
3 Bed House | 15 m | Est. Value: £332,526
- 6 Union Close
3 Bed House | 20 m | Est. Value: £332,526
Location Comparison
Union Close, Portsmouth, PO3 has a total of 6 addresses. According to our analysis of all the public data, 3, Union Close, Portsmouth is the largest and the most expensive property on the street.
When compared to the postcode district it is £160k more expensive than the average property in PO3.
More reading links
Schools Nearby
- Langstone Primary Academy700 m away
- Penbridge Infant School & Nursery700 m away
- Fernhurst Junior School1.0 km away
- Miltoncross Academy300 m away
- The Portsmouth Academy800 m away
- Priory School1.1 km away
More reading links
Public Transport Nearby
- Fratton|800 m away
- Portsmouth & Southsea|1.9 km away
- Hilsea|3.0 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












