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Get started11 Neptune Square is a one-bedroom end-of-terrace house in Ipswich (IP4 1QH). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1996-2002 and council tax band B. The latest certificate (June 2022) shows a C (score 69), just inside the C band. When first surveyed in January 2009 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Average. Main heating runs on electricity. At 41 m² this is the 4th 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 across 66 units on file.
Sale prices here have outpaced Ipswich HPI: 2% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£313/sq ft) was about 38.1% above the typical sold price in the postcode. At 41 m² it sits well below the postcode median (75 m² across 62 EPCs), making it one of the more compact homes locally. Last sale on file: £138,000 in October 2022. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£147,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.0% per year over 22 years.
£138,000
Growth on file: 2.0% per year over 22 years.
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On habitable rooms, 11 Neptune Square runs well behind the street norm.
Price per m²
£3,366
Street avg £2,863
Floor Area
41 m²
Street avg 75 m²
Habitable Rooms
2 rooms
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.

Daytime· 07:00 – 23:00
55.0dB

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Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
21 October 2022Most recent
£138,000
+11.3%over 11 years28 April 2011
£124,000
-2.4%over 6 years4 June 2004
£127,000
+44.3%over 3 years28 June 2000
£88,000
Median price across the last 5 sales in IP4 1QH: £182,000 (2025–2024).
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Energy costs, comparable sales, crime, schools and transport

Street avg 3 rooms
CO₂ Emissions
2.2 t/year
Street avg 2.8 t/year
IP4 1NF
Closest school
0.3 km
Suffolk New College. 31 schools nearby.
Flood risk
Low
From the Environment Agency.
Night-time· 23:00 – 07:00
45.5dB