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Get started9 Alexandra Avenue is a five-bedroom detached house in West Mersea, Colchester, Colchester (CO5 8BG). It has a recorded floor area of 247 m² (around 2659 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (March 2016) shows a D (score 57), a step below the typical UK home. When first surveyed in March 2013 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Good; while lighting dropped from Good to Very Poor. The recommended improvements would push it to C (score 74). The latest certificate is from March 2016, so improvements made since then won't be reflected. Other recorded features include a conservatory and attached land beyond the plot.
At 247 m² the property is well over the postcode median (150 m² across 17 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £955,000 sits 50.4% above the 2013 sale of £635,000. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. Last sold in September 2013, so it's been off the market for around 13 years.
9 Alexandra Avenue's carbon output runs well above what efficient homes in the postcode produce.
This certificate is over 10 years old and is no longer valid.Expired 06 Mar 2026
9 Alexandra Avenue has an approved extension on the planning record.
Alteration to the frontage of the existing coach house, alterations to the frontage of the existing double garage, and the replacement of the existing flat roof over the existing double garage with a new (flat-topped) pitched roof.
9 Alexandra Avenue valuation sits well clear of the typical sold price in this postcode.
£955,000
Modelled from EPC, postcode comparables.
£635,000
Recorded with HM Land Registry.
On floor area, 9 Alexandra Avenue stands well clear of the street.
Price per m²
£2,571
Street avg £3,186
Floor Area
247 m²
Street avg 148 m²
Habitable Rooms
8 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
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
Roof insulation improved
Low energy lighting percentage decreased
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Windows upgraded, improving insulation
Are we missing something? Tell us about home improvements to help adjust your valuation.
Notification of proposed orangery measuring 6200mm long, 4000mm high and 2800mm height at the eaves
27 September 2013Most recent
£635,000
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
11.0 t/year
Street avg 5.8 t/year
CO5 8RX
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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