Basement Flat, 12 Port Lane, Colchester, CO1 2JF
About Basement Flat
Basement Flat is an end-of-terrace house in Colchester (CO1 2JF). It has a recorded floor area of 34 m² (around 366 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (March 2022) shows an E (score 45), well below the UK norm with real room to improve. When first surveyed in July 2016 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor. The recommended improvements would lift it to C (score 75), a 2-band jump. Main heating runs on electricity.
At 34 m² it sits well below the postcode median (58 m² across 28 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). Across 2001–2016, sale prices on this property compounded at 7.6% per year. Today's modelled estimate of £109,000 is 26.7% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£235/sq ft) was about 27% above the typical sold price in the postcode. Last sold in August 2016, so it's been off the market for around 10 years.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Wall insulation improved
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
Basement Flat has no planning applications on record.
But the area is active
10 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Basement Flat has more than tripled in price since its earliest registered sale in 2001.
£109,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.6% per year over 15 years.
£86,000
Growth on file: 7.6% per year over 15 years.
Sales timeline
30 August 2016Most recent
£86,000
+7.5%over 11 years24 January 2005
£80,000
+180.7%over 3 years8 August 2001
£28,500
Median price across the last 5 sales in CO1 2JF: £215,000 (2025–2023).
Versus other Port Lane homes
Basement Flat is notably below the street on epc rating.
Price per m²
£2,529
Street avg £4,264
Floor Area
34 m²
Street avg 36 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
2.8 t/year
Street avg 2.3 t/year
Similar properties nearby
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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
Port Lane — bus stop.
Closest school
0.7 km
Kendall Church of England Primary School. 27 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
49.4dB

Night-time· 23:00 – 07:00
39.2dB







