15a, Alexandra Avenue, West Mersea, Colchester, CO5 8BG
About 15a
15a is a detached house in West Mersea, Colchester, Colchester (CO5 8BG). It has a recorded floor area of 198 m² (around 2130 sq ft), construction records dating it to 2003-2006 and council tax band G. The latest certificate (June 2011) shows a C (score 71). The latest certificate is from June 2011, so improvements made since then won't be reflected.
It hasn't traded since December 1996, a hold of 29 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 198 m² the property is well over the postcode median (150 m² across 20 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 70% of similar EPCs). Today's modelled estimate of £809,000 sits 390.3% above the 1996 sale of £165,000. On a £-per-square-foot basis, the last sale (£77/sq ft) was about 66.4% below the postcode norm.
Energy performance
15a'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This certificate is over 10 years old and is no longer valid.Expired 28 Jun 2021
EPC Rating
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Planning history
15a has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
15a's modelled value sits at over four times its earliest registered sale price (1996).
£809,000
Modelled from EPC, postcode comparables.
£165,000
Recorded with HM Land Registry.
Sales timeline
18 December 1996Most recent
£165,000
Median price across the last 5 sales in CO5 8BG: £670,000 (2025–2021).
Nearby sales in CO5 8BG
6a, Alexandra Avenue, West Mersea, Colchester, CO5 8BG
Sold Aug 2025
£825,00010 Alexandra Avenue, West Mersea, Colchester, CO5 8BG
Sold Jan 2025
£595,0002a, Alexandra Avenue, West Mersea, Colchester, CO5 8BG
Sold Aug 2024
£610,00011 Alexandra Avenue, West Mersea, Colchester, CO5 8BG
Sold Apr 2022
£670,0006 Alexandra Avenue, West Mersea, Colchester, CO5 8BG
Sold Apr 2021
£800,000
Versus other Alexandra Avenue homes
On habitable rooms, 15a stands well clear of the street.
Price per m²
£834
Street avg £3,120
Floor Area
198 m²
Street avg 153 m²
Habitable Rooms
10 rooms
Street avg 6 rooms
CO₂ Emissions
8.4 t/year
Street avg 6.1 t/year
Similar properties nearby
1 Broomhills Road, West Mersea
CO5 8AP
1 Brierley Avenue, West Mersea
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1 City Road, West Mersea
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1 Alexandra Avenue, West Mersea
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1 Blackwater Drive, West Mersea
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1 Bower Grove, West Mersea
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1 Buxey Close, West Mersea
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1 Beverley Avenue, West Mersea
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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
0.6 km
Barfield Rd — bus stop.
Closest school
0.6 km
Mersea Island School. 1 school 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
45.8dB

Night-time· 23:00 – 07:00
36.9dB







