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Get started104 Catharine Street is a three-bedroom mid-terrace house in Cambridge (CB1 3AR). It has a recorded floor area of 77 m² (around 829 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (November 2018) shows a D (score 62), on the cusp of jumping into the C band. When first surveyed in September 2009 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Average and lighting went from Average to Very Good; while roof efficiency dropped from Average to Very Poor. The recommended improvements would lift it to B (score 82), a 2-band jump. It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.
Sale prices here have outpaced Cambridge HPI: 12% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£664/sq ft) was about 112.7% above the typical sold price in the postcode. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. Last sale on file: £550,000 in August 2023.
Recommended upgrades on file would lift this property by multiple EPC bands.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
Extension: Single storey · Rear of property
Single storey rear extension and loft conversion
104 Catharine Street has more than quadrupled in price since its earliest registered sale in 1996.
£556,000
Modelled from EPC, postcode comparables and a sale-price growth of 12.0% per year over 27 years.
£550,000
Growth on file: 12.0% per year over 27 years.
104 Catharine Street outperforms the street on price per m² by a wide margin.
Price per m²
£7,143
Street avg £4,830
Floor Area
77 m²
Street avg 83 m²
Habitable Rooms
5 rooms
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Rising year-on-year across the wider district.
Nearest stop
0.9 km
Cambridge Rail Station — railway station.

Daytime· 07:00 – 23:00
48.2dB

Changes detected from historical EPC data
Single glazing replaced with double or better glazing
Roof insulation improved
Floor insulation added or improved
More low energy lighting installed
Heating controls upgraded for better temperature management
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Two storey · Rear of property
Erection of 2 storey rear extension (replaces existing 2 storey structure at rear of dwelling).
25 August 2023Most recent
£550,000
+38.4%over 8 years6 July 2015
£397,500
+59.0%over 4 years17 December 2010
£249,950
+40.4%over 7 years19 December 2002
£178,000
+149.0%over 6 years5 December 1996
£71,500
+186.0%over 7 months20 May 1996
£25,000
Median price across the last 5 sales in CB1 3AR: £500,000 (2025–2024).
Street avg 5 rooms
CO₂ Emissions
3.3 t/year
Street avg 3.7 t/year
CB1 3AE
Closest school
0.5 km
Cambridge Maths School. 29 schools nearby.
Night-time· 23:00 – 07:00
37.3dB
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