21a, Blackheath, Colchester, CO2 0AE
About 21a
21a is a three-bedroom detached house in Colchester (CO2 0AE). It has a recorded floor area of 127 m² (around 1367 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (October 2012) shows a D (score 57), a step below the typical UK home. The recommended improvements would push it to C (score 77). The latest certificate is from October 2012, so improvements made since then won't be reflected.
Held since September 2003 — that's 23 years off the open market, well above the local norm. Today's modelled estimate of £441,000 sits 132.1% above the 2003 sale of £190,000. On a £-per-square-foot basis, the last sale (£139/sq ft) was about 31.5% below the postcode norm. 2 planning records sit against the property, 1 approved, 1 refused.
What this property has
Inside
- Bedrooms3
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Energy performance
21a's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 10 Oct 2022
EPC Rating
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Planning history
2 applications on record at 21a, Blackheath, Colchester, CO2 0AE
- Sept 2014AmendmentOutcome in report
The proposal is to construct a high quality boarding cattery consisting of 12 individual pens and 1 isolation pen, with a maximum occupancy of 15 cats at any one given time; the proposals also includefor a small shed type office structure for meeting and greeting clients.’
- Documents
- 11 docs on file
- Reference
- 145646
- More recent applications — locked
- AmendmentMar 2015Decision
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- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 1 notable nearby
- The 36 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
21a valuation sits well clear of the typical sold price in this postcode.
£441,000
Modelled from EPC, postcode comparables.
£190,000
Recorded with HM Land Registry.
Sales timeline
14 September 2003Most recent
£190,000
Median price across the last 5 sales in CO2 0AE: £295,000 (2025–2019).
Versus other Blackheath homes
On price per m², 21a runs well behind the street norm.
Price per m²
£1,496
Street avg £2,629
Floor Area
127 m²
Street avg 119 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
6.0 t/year
Street avg 3.3 t/year
Everything you need to know about 21a
The true value, the hidden risks and the full sale history, in one report.
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
5/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Baptist Church — bus stop.
Closest school
0.4 km
Cherry Tree Academy. 14 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
47.9dB
Night-time· 23:00 – 07:00
39.1dB