21 Garden Close, Althorne, Chelmsford, CM3 6BP
About 21 Garden Close
21 Garden Close is a three-bedroom semi-detached house in Althorne, Chelmsford, Chelmsford (CM3 6BP). It has a recorded floor area of 71 m² (around 764 sq ft), construction records dating it to 1976-1982 and council tax band C. The latest certificate (December 2022) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since February 2019. Between certificates, wall efficiency went from Average to Good, roof efficiency went from Average to Good and lighting went from Average to Very Good. The recommended improvements would lift it to B (score 88), a 2-band jump.
Across 1997–2024, sale prices on this property compounded at 6.4% per year. On a £-per-square-foot basis, the last sale (£458/sq ft) was about 139.8% above the typical sold price in the postcode. At 71 m² it's 20.3% smaller than the typical home in the postcode (89 m² median across 20 EPCs). Last sale on file: £350,000 in April 2024.
What this property has
Inside
- Bedrooms3
- Open-plan layoutYes
- Dining roomYes
- Utility roomYes
- CloakroomYes
Outside
- GarageYes
Building
- Central heatingYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
Roof insulation improved
More low energy lighting installed
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Planning history
21 Garden Close has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
Price for 21 Garden Close has grown more than fourfold since the 1997 starting point.
£379,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 27 years.
£350,000
Growth on file: 6.4% per year over 27 years.
Sales timeline
8 April 2024Most recent
£350,000
+25.0%over 4 years21 July 2019
£280,000
+314.8%over 21 years25 September 1997
£67,500
Median price across the last 5 sales in CM3 6BP: £350,000 (2025–2023).
Nearby sales in CM3 6BP
9 Garden Close, Althorne, Chelmsford, CM3 6BP
Sold Sept 2025
£300,00011 Garden Close, Althorne, Chelmsford, CM3 6BP
Sold Apr 2025
£309,00012d, Garden Close, Althorne, Chelmsford, CM3 6BP
Sold Sept 2024
£362,00017 Garden Close, Althorne, Chelmsford, CM3 6BP
Sold Jun 2024
£350,00012f, Garden Close, Althorne, Chelmsford, CM3 6BP
Sold Feb 2023
£467,555
Versus other Garden Close homes
On price per m², 21 Garden Close stands well clear of the street.
Price per m²
£4,930
Street avg £3,056
Floor Area
71 m²
Street avg 93 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
2.9 t/year
Street avg 3.8 t/year
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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
1/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Post Office — bus stop.
Closest school
2.1 km
Maylandsea Primary School. 2 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
48.0dB

Night-time· 23:00 – 07:00
41.8dB







