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Get started12 Alexandra Avenue is a three-bedroom detached house in West Mersea, Colchester, Colchester (CO5 8BG). It has a recorded floor area of 171 m² (around 1841 sq ft), construction records dating it to 1930-1949 and council tax band F. There is a swimming pool on the plot, uncommon for the area. Other recorded features include a conservatory. The latest certificate (December 2015) returns a B (score 81), comfortably above the UK average. When first surveyed in July 2014 the rating was G, the property has climbed 5 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Very Poor to Very Good and window efficiency went from Average to Good; while hot-water efficiency dropped from Good to Average. Main heating runs on oil. The latest certificate is from December 2015, so improvements made since then won't be reflected.
Sale prices here have outpaced Colchester HPI: 5% per year against 0% for the wider region. Today's modelled estimate of £728,000 sits 82% above the 2014 sale of £400,000. On energy efficiency it sits in the top 10% of properties in this postcode. Last sold in December 2014, so it's been off the market for around 11 years.
12 Alexandra Avenue ranks among the most efficient homes in the postcode for energy use.
This certificate is over 10 years old and is no longer valid.Expired 14 Dec 2025
12 Alexandra Avenue has more than doubled in price since the earliest registered sale in 1995.
£728,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.0% per year over 19 years.
£400,000
Growth on file: 5.0% per year over 19 years.
12 Alexandra Avenue outperforms the street on epc rating by a wide margin.
Price per m²
£2,339
Street avg £3,200
Floor Area
171 m²
Street avg 153 m²
Habitable Rooms
7 rooms
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

Daytime· 07:00 – 23:00
45.8dB

Changes detected from historical EPC data
Hot water system changed
Window efficiency improved
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
Floor insulation added or improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
19 December 2014Most recent
£400,000
+153.2%over 19 years14 November 1995
£158,000
Median price across the last 5 sales in CO5 8BG: £670,000 (2025–2021).
6a Alexandra Avenue West Mersea Colchester
Sold Aug 2025
10 Alexandra Avenue West Mersea Colchester
Sold Jan 2025
2a Alexandra Avenue West Mersea Colchester
Sold Aug 2024
11 Alexandra Avenue West Mersea Colchester
Sold Apr 2022
6 Alexandra Avenue West Mersea Colchester
Sold Apr 2021
Street avg 6 rooms
CO₂ Emissions
3.4 t/year
Street avg 6.2 t/year
CO5 8RY
Barfield Rd — bus stop.
Closest school
0.6 km
Mersea Island School. 1 school nearby.
Night-time· 23:00 – 07:00
36.9dB
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