21 Blenheim Close, Danbury, Chelmsford, CM3 4NE
About 21 Blenheim Close
21 Blenheim Close is a four-bedroom detached house in Danbury, Chelmsford, Chelmsford (CM3 4NE). It has a recorded floor area of 137 m² (around 1475 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (November 2018) shows an E (score 54), well below the UK norm with real room to improve. Earlier certificates rated it D (October 2008); the latest reading is one band lower. Between certificates, roof efficiency went from Very Poor to Average; while wall efficiency dropped from Good to Average and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 78), a 2-band jump. Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £624,000 is 23.6% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£342/sq ft) was about 48.3% above the typical sold price in the postcode. Sold November 2019 for £505,000.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Dining roomYes
- Utility roomYes
- EnsuiteYes
Outside
- Private gardenRear
- GarageYes
- Cul-de-sacYes
Building
- Previously extendedYes
Energy performance
21 Blenheim Close sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Roof insulation improved
Low energy lighting percentage decreased
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Planning history
21 Blenheim 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
21 Blenheim Close valuation sits well clear of the typical sold price in this postcode.
£624,000
Modelled from EPC, postcode comparables.
£505,000
Recorded with HM Land Registry.
Sales timeline
12 November 2019Most recent
£505,000
Median price across the last 5 sales in CM3 4NE: £367,500 (2020–2006).
Nearby sales in CM3 4NE
6 Blenheim Close, Danbury, Chelmsford, CM3 4NE
Sold Nov 2020
£499,00015 Blenheim Close, Danbury, Chelmsford, CM3 4NE
Sold Sept 2018
£635,00019 Blenheim Close, Danbury, Chelmsford, CM3 4NE
Sold Mar 2011
£367,50012 Blenheim Close, Danbury, Chelmsford, CM3 4NE
Sold Feb 2003
£329,9508 Blenheim Close, Danbury, Chelmsford, CM3 4NE
Sold Sept 2002
£235,000
Versus other Blenheim Close homes
21 Blenheim Close is notably below the street on epc rating.
Price per m²
£3,686
Street avg £3,554
Floor Area
137 m²
Street avg 133 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
6.9 t/year
Street avg 4.2 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
0.2 km
The White Swan — bus stop.
Closest school
0.3 km
Priory Primary School, Bicknacre. 4 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
44.3dB

Night-time· 23:00 – 07:00
37.4dB







