Our Data Sources
4, Union Close, Portsmouth has a single entry in the Land Registry from August 2014 and a single entry in the EPC database dated August 2013.
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
In very good condition, we estimate 4, Union Close, Portsmouth would be worth £349,152, with a potential rental value of £1,825 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £309,249, with a rental value of £1,616 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
4, Union Close, Portsmouth occupies a 170 m2 plot as recorded by HM Land Registry.
All 6 other houses in this postcode have recorded plot sizes, and this one ranks as the 5th largest.
Energy Efficiency
4, Union Close, Portsmouth has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 13 Aug 2013.
The property is not connected to mains gas and has high performance glazing. It is heated using a boiler and radiators (mains gas).
Sold Prices
4, Union Close, Portsmouth last changed hands on 4th August 2014, selling for £226,995. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 21.5% since August 2014.
- Sold Aug 2014£226,995
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 154 sales of comparable properties within 490 metres of 4, Union Close, Portsmouth since 2018.
Most recently, 27, Guardians Way, Portsmouth, PO3 6GJ, a freehold house, sold at £350,000 on the 1st May 2026.
Read more about house prices in PO3.
- Sold May 2026£350,000 | 3 Bed House27, Guardians Way, Portsmouth, PO3 6GJ27, Guardians Way, Portsmouth, PO3 6GJ
- Sold Apr 2026£360,000 | 3 Bed House3, Guardians Way, Portsmouth, PO3 6GJ3, Guardians Way, Portsmouth, PO3 6GJ
- Sold Apr 2026£370,000 | 3 Bed House14, Union Road, Portsmouth, PO3 6GF14, Union Road, Portsmouth, PO3 6GF
- Sold Jan 2026£150,000 | 3 Bed House4, Guardians Way, Portsmouth, PO3 6GJ4, Guardians Way, Portsmouth, PO3 6GJ
- Sold Sep 2025£370,000 | 3 Bed House80, Union Road, Portsmouth, PO3 6GF80, Union Road, Portsmouth, PO3 6GF
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 £335,763, ranging from £281,381 to £447,840.
- 5 Union Close
3 Bed House | 5 m | Est. Value: £332,526
- 3 Union Close
4 Bed House | 10 m | Est. Value: £431,434
- 6 Union Close
3 Bed House | 10 m | Est. Value: £332,526
- 2 Union Close
3 Bed House | 19 m | Est. Value: £328,359
- 1 Union Close
3 Bed House | 24 m | Est. Value: £338,759
Location Comparison
Our analysis of the public data ranks 4, Union Close, Portsmouth as the 4th largest and the 5th most expensive of the 6 addresses on Union Close, Portsmouth, PO3.
Against the PO3 postcode district average, it is £61k more expensive than the typical property.
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
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
