23 Neptune Square, Ipswich, IP4 1QH
About 23 Neptune Square
23 Neptune Square is a two-bedroom end-of-terrace house in Ipswich (IP4 1QH). It has a recorded floor area of 79 m² (around 850 sq ft), construction records dating it to 2003-2006 and council tax band D. The latest certificate (February 2021) returns a B (score 82), comfortably above the UK average. When first surveyed in January 2009 the rating was D, the property has climbed 2 bands since. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Good. Main heating runs on electricity. At 79 m² this is the 51st smallest of 64 units on EPC record in the building, where floor areas span 38–181 m². The building's EPC ratings span E to B, with this unit at the top. Other recorded features include a balcony.
On energy efficiency it sits in the top 10% of properties in this postcode. Across 2001–2022, sale prices on this property compounded at 2.4% per year. On a £-per-square-foot basis, the last sale (£341/sq ft) was about 50.6% above the typical sold price in the postcode. Most recent transfer: January 2022 at £290,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms2
- Bathrooms2
- Dining roomYes
Outside
- ParkingOff road
- BalconyYes
Energy performance
23 Neptune Square ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Certificate validity
Valid until 6 February 2031
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
23 Neptune Square has no planning applications on record.
But the area is active
6 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£284,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.4% per year over 21 years.
£290,000
Growth on file: 2.4% per year over 21 years.
Sales timeline
14 January 2022Most recent
£290,000
+65.7%over 20 years5 February 2001
£175,000
Median price across the last 5 sales in IP4 1QH: £204,000 (2026–2025).
Nearby sales in IP4 1QH
Versus other Neptune Square homes
23 Neptune Square outperforms the street on epc rating by a wide margin.
Price per m²
£3,671
Street avg £3,004
Floor Area
79 m²
Street avg 75 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.9 t/year
Street avg 2.8 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
185/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Fore Street — bus stop.
Closest school
0.3 km
Suffolk New College. 31 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
55.0dB

Night-time· 23:00 – 07:00
45.5dB







