11a, Flat 1, Mersea Road, Colchester, CO2 7EX
About 11a
11a is an end-of-terrace house in Colchester (CO2 7EX). It has a recorded floor area of 26 m² (around 280 sq ft), construction records dating it to before 1900 and council tax band A. At 26 m² this is the 2nd smallest of 5 units on EPC record in 11a, where floor areas span 25–42 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (39 versus a best of 80). The latest certificate (June 2021) shows an E (score 39), well below the UK norm with real room to improve. Earlier certificates rated it C (July 2009); the latest reading is 2 bands lower. Between certificates, lighting went from Good to Very Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would lift it to C (score 76), a 2-band jump. Main heating runs on electricity.
At 26 m² it sits well below the postcode median (42 m² across 15 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs).
Everything you need to know about 11a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 10 June 2031
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system changed
Heating controls changed
Single glazing replaced with double or better glazing
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
More low energy lighting installed
Heating system changed
Heating controls upgraded for better temperature management
Hot water system changed
Low energy lighting percentage decreased
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has no mains gas supply, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
11a has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
11a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£113,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in CO2 7EX: £175,000 (2026–2006).
Nearby sales in CO2 7EX
Versus other Mersea Road homes
On epc rating, 11a runs well behind the street norm.
EPC Rating
39 (E)
Street avg 64 (D)
Floor Area
26 m²
Street avg 36 m²
CO₂ Emissions
2.8 t/year
Street avg 2.4 t/year
Habitable Rooms
1 rooms
Street avg 2 rooms
Everything you need to know about 11a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee
The data behind every report
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
311/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Town Railway Station — bus stop.
Closest school
0.4 km
St John's Green Primary School. 35 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
52.1dB
Night-time· 23:00 – 07:00
41.4dB