21 Neptune Square, Ipswich, IP4 1QH
About 21 Neptune Square
21 Neptune Square is a mid-terrace house in Ipswich (IP4 1QH). It has a recorded floor area of 78 m² (around 840 sq ft), construction records dating it to 2003-2006 and council tax band D. The latest certificate (May 2014) 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. The latest certificate is from May 2014, so improvements made since then won't be reflected. At 78 m² this is the 47th smallest of 63 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.
On energy efficiency it sits in the top 10% of properties in this postcode. Across 2000–2015, sale prices on this property compounded at 2.7% per year. On a £-per-square-foot basis, the last sale (£295/sq ft) was about 30% above the typical sold price in the postcode. On the market in February 2015 and unlisted since — roughly 11 years.
Energy performance
21 Neptune Square ranks among the most efficient homes in the postcode for energy use.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 31 May 2024
EPC Rating
Property Improvements
Changes detected from historical EPC data
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
21 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
21 Neptune Square valuation sits well clear of the typical sold price in this postcode.
£271,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.7% per year over 14 years.
£247,500
Growth on file: 2.7% per year over 14 years.
Sales timeline
20 February 2015Most recent
£247,500
+46.4%over 14 years4 December 2000
£169,000
Median price across the last 5 sales in IP4 1QH: £182,000 (2025–2024).
Nearby sales in IP4 1QH
Versus other Neptune Square homes
EPC Rating for 21 Neptune Square runs comfortably ahead of the street norm.
Price per m²
£3,173
Street avg £2,866
Floor Area
78 m²
Street avg 74 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.0 t/year
Street avg 2.8 t/year
Similar properties nearby
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
9/mo
Rising 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







