12c, Garden Close, Althorne, Chelmsford, CM3 6BP
About 12c
12c is a detached house in Althorne, Chelmsford, Chelmsford (CM3 6BP). It has a recorded floor area of 113 m² (around 1216 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (March 2024) shows a C (score 70). The rating has held steady at C across 6 certificates since August 2009. Between certificates, lighting went from Average to Good; while roof efficiency dropped from Very Good to Average. The recommended improvements would push it to B (score 85).
Held since September 2004 — that's 22 years off the open market, well above the local norm. At 113 m² the property is well over the postcode median (86 m² across 20 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £405,000 sits 68.8% above the 2004 sale of £240,000.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Floor insulation added or improved
More low energy lighting installed
Mechanical ventilation installed
Fuel source changed
Heating controls changed
Hot water system changed
Low energy lighting percentage decreased
Ventilation system changed
Switched from oil to mains gas, reducing emissions and costs
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Wall insulation upgraded
Roof insulation improved
More low energy lighting installed
Heating controls upgraded for better temperature management
Floor insulation added or improved
Heating controls changed
Window efficiency improved
Low energy lighting percentage decreased
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Planning history
12c 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
12c valuation sits well clear of the typical sold price in this postcode.
£405,000
Modelled from EPC, postcode comparables.
£240,000
Recorded with HM Land Registry.
Sales timeline
9 September 2004Most recent
£240,000
Median price across the last 5 sales in CM3 6BP: £350,000 (2025–2024).
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
£350,00021 Garden Close, Althorne, Chelmsford, CM3 6BP
Sold Apr 2024
£350,000
Versus other Garden Close homes
On years held, 12c stands well clear of the street.
Price per m²
£2,124
Street avg £3,221
Floor Area
113 m²
Street avg 91 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.8 t/year
Street avg 3.7 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







