21 Chatsworth Avenue, Cambridge, CB4 3LT
About 21 Chatsworth Avenue
21 Chatsworth Avenue is a semi-detached house in Cambridge (CB4 3LT). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1967-1975 and council tax band B. The latest certificate (March 2022) shows a C (score 74). When first surveyed in May 2010 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average, hot-water efficiency went from Average to Good and lighting went from Good to Very Good.
Across 2012–2019, sale prices on this property compounded at 6.4% per year. On a £-per-square-foot basis, the last sale (£473/sq ft) was about 76.6% above the typical sold price in the postcode. Sold April 2019 for £290,000.
Energy performance
EPC Rating
Certificate validity
Valid until 25 March 2032
Property Improvements
Changes detected from historical EPC data
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Windows upgraded, improving insulation
Low energy lighting percentage decreased
Cavity wall insulation installed
More low energy lighting installed
Get a survey for this property
Level 2 HomeBuyer Report
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Planning history
21 Chatsworth Avenue has no planning applications on record.
But the area is active
9 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
21 Chatsworth Avenue valuation sits well clear of the typical sold price in this postcode.
£295,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 7 years.
£290,000
Growth on file: 6.4% per year over 7 years.
Sales timeline
4 April 2019Most recent
£290,000
+55.5%over 7 years3 February 2012
£186,500
Median price across the last 5 sales in CB4 3LT: £300,000 (2026–2024).
Nearby sales in CB4 3LT
4 Chatsworth Avenue, Cambridge, CB4 3LT
Sold Feb 2026
£300,00010 Chatsworth Avenue, Cambridge, CB4 3LT
Sold Oct 2024
£292,50013 Chatsworth Avenue, Cambridge, CB4 3LT
Sold Aug 2024
£325,00023 Chatsworth Avenue, Cambridge, CB4 3LT
Sold Feb 2024
£315,00020 Chatsworth Avenue, Cambridge, CB4 3LT
Sold Feb 2024
£295,000
Versus other Chatsworth Avenue homes
On floor area, 21 Chatsworth Avenue runs well behind the street norm.
Price per m²
£5,088
Street avg £3,576
Floor Area
57 m²
Street avg 59 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.8 t/year
Street avg 2.2 t/year
Similar properties nearby
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
411/mo
Falling year-on-year across the wider district.
Closest school
0.2 km
Mayfield Primary School. 19 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
49.7dB

Night-time· 23:00 – 07:00
40.3dB







