23 Clarkson Street, Ipswich, IP1 2JB
About 23 Clarkson Street
23 Clarkson Street is a mid-terrace house in Ipswich (IP1 2JB). It has a recorded floor area of 34 m² (around 366 sq ft), construction records dating it to 1900-1929 and council tax band A. 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 6 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. At 34 m² this is the 3rd smallest of 36 units on EPC record in the building, where floor areas span 21–186 m². The building's EPC ratings span E to B across 36 units on file.
Across 1999–2026, sale prices on this property compounded at 5.1% per year. Today's modelled estimate of £111,000 sits 58.6% above the 2026 sale of £70,000. On a £-per-square-foot basis, the last sale (£191/sq ft) was about 50% above the typical sold price in the postcode. It changed hands recently, sold February 2026 for £70,000. At 34 m² it's 24.4% smaller than the typical home in the postcode (45 m² median across 35 EPCs). One historical planning record sits against the property in 2009.
Energy performance
EPC Rating
Certificate validity
Valid until 29 July 2034
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
Upgraded to gas central heating
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Wall insulation improved
More low energy lighting installed
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
1 application on record at 23 Clarkson Street, Ipswich, IP1 2JB
- Jul 2009RenovationFullOutcome in report
Installation of replacement UPVC windows and doors on front and rear elevation.
New Windows- Documents
- 5 docs on file
- Reference
- 09/00343/FUL
Unlock 23 Clarkson Street, Ipswich, IP1 2JB's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn
- All 1 application on this property in full, plus 3 notable nearby
- The 5 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Sale price has grown by over 3x since 1999.
£111,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.1% per year over 26 years.
£70,000
Growth on file: 5.1% per year over 26 years.
Sales timeline
11 February 2026Most recent
£70,000
+7.7%over 2 years14 February 2023
£65,000
+3.2%over 6 years4 October 2016
£63,000
+0.8%over 10 years18 November 2005
£62,500
+31.6%30 May 2005
£47,500
+148.4%over 5 years23 December 1999
£19,125
Median price across the last 5 sales in IP1 2JB: £98,500 (2023–2019).
Nearby sales in IP1 2JB
15 Clarkson Street, Ipswich, IP1 2JB
Sold Oct 2023
£264,000Flat A, 23 Clarkson Street, Ipswich, IP1 2JB
Sold Apr 2023
£155,0001 Clarkson Street, Ipswich, IP1 2JB
Sold Feb 2023
£98,500Flat D, 23 Clarkson Street, Ipswich, IP1 2JB
Sold May 2022
£81,000Flat 1, 1 Clarkson Street, Ipswich, IP1 2JB
Sold May 2019
£74,000
Versus other Clarkson Street homes
On years held, 23 Clarkson Street runs well behind the street norm.
Price per m²
£2,059
Street avg £4,132
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
The neighbourhood at a glance
Crime
332/mo
Steady 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







