15a, Flat 3, High Street, Colchester, CO1 1DA
About 15a
15a is a mid-terrace house in Colchester (CO1 1DA). It has a recorded floor area of 88 m² (around 947 sq ft) and construction records dating it to 2007 onwards. At 88 m² this is the 3rd smallest of 4 units on EPC record in 15a, where floor areas span 60–100 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (February 2025) shows an E (score 49), well below the UK norm with real room to improve. Earlier certificates rated it C (September 2013); the latest reading is 2 bands lower. Between certificates, window efficiency went from Very Poor to Good; while wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Good to Very Poor. The recommended improvements would push it to D (score 58). Main heating runs on electricity.
At 88 m² the property is well over the postcode median (67 m² across 3 EPCs), placing it in the larger end of the local stock.
Everything you need to know about 15a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Changed to a more efficient fuel source
Hot water efficiency decreased
Single glazing replaced with double or better glazing
Wall insulation improved
Hot water efficiency decreased
Get a survey for this property
Level 3 Building Survey
Because the property 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
15a has no planning applications on record.
But the area is active
25 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
15a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£149,000
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 CO1 1DA: £340,000 (2024–2018).
Versus other High Street homes
EPC Rating
49 (E)
Street avg 53 (E)
Floor Area
88 m²
Street avg 76 m²
CO₂ Emissions
4.3 t/year
Street avg 4.0 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
Everything you need to know about 15a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £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
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
High Street — bus stop.
Closest school
0.2 km
The Sixth Form College Colchester. 37 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
53.3dB
Night-time· 23:00 – 07:00
43.4dB