Flat A, 23 Clarkson Street, Ipswich, IP1 2JB
About Flat A
Flat A is a mid-terrace house in Ipswich (IP1 2JB). It has a recorded floor area of 34 m² (around 366 sq ft) and construction records dating it to 1900-1929. The latest certificate (July 2024) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 7 certificates since January 2009. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Good and lighting went from Poor to Very Good; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Poor to Very Poor. The recommended improvements would push it to C (score 78). Main heating runs on electricity.
Across 1995–2023, sale prices on this property compounded at 5.6% per year. On a £-per-square-foot basis, the last sale (£424/sq ft) was about 227.3% above the typical sold price in the postcode. At 34 m² it's 24.4% smaller than the typical home in the postcode (45 m² median across 35 EPCs). Sold April 2023 for £155,000.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Single glazing replaced with double or better glazing
Hot water system upgraded
Windows upgraded, improving insulation
Heating system changed
Heating system upgraded to a more efficient system
Heating controls changed
Hot water system changed
Window efficiency improved
External or internal wall insulation added
More low energy lighting installed
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Low energy lighting percentage decreased
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has no mains gas supply, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Flat A has no planning applications on record.
But the area is active
3 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Price for Flat A has grown more than fourfold since the 1995 starting point.
£145,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.6% per year over 28 years.
£155,000
Growth on file: 5.6% per year over 28 years.
Sales timeline
13 April 2023Most recent
£155,000
+51.2%over 15 years26 April 2007
£102,500
+128.0%over 7 years3 December 1999
£44,950
+30.3%over 4 years12 July 1995
£34,500
Median price across the last 5 sales in IP1 2JB: £81,000 (2023–2019).
Nearby sales in IP1 2JB
Versus other Clarkson Street homes
On habitable rooms, Flat A runs well behind the street norm.
Price per m²
£4,559
Street avg £3,135
Floor Area
34 m²
Street avg 45 m²
Habitable Rooms
1 rooms
Street avg 2 rooms
CO₂ Emissions
1.9 t/year
Street avg 2.8 t/year
Similar properties nearby
114c, Flat 12, Bramford Road
IP1 2GL
1a, Flat 6, Clarkson Street
IP1 2JB
114c, Flat 10, Bramford Road
IP1 2GL
1a, Flat 8, Clarkson Street
IP1 2JB
1a, Flat 9, Clarkson Street
IP1 2JB
1a, Flat 10, Clarkson Street
IP1 2JB
114c, Flat 1, Bramford Road
IP1 2GL
114c, Flat 11, Bramford Road
IP1 2GL
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
16/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Granville Street — bus stop.
Closest school
0.3 km
St Matthew's Church of England Primary School, Ipswich. 32 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
54.6dB

Night-time· 23:00 – 07:00
44.8dB







