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21 Colchester Avenue, Penylan, Cardiff, CF23 9BN

Property type
Semi-detached
Habitable rooms
6
From EPC
Floor area
150 m²
1615 sq ft
Energy rating
D
Score 65
Council tax
Band G
Tenure
Private Rental
Overview

About 21 Colchester Avenue

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

21 Colchester Avenue is a semi-detached house in Penylan, Cardiff, Cardiff (CF23 9BN). It has a recorded floor area of 150 m² (around 1615 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (June 2019) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 79).

At 150 m² it's 16.3% larger than the typical home in the postcode (129 m² median across 12 EPCs). Across 2006–2020, sale prices on this property compounded at 1.9% per year. Today's modelled estimate of £488,000 is 13.5% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£266/sq ft) was about 25.9% above the typical sold price in the postcode. Last sale on file: £430,000 in October 2020.

Before you decide

Everything you need to know about 21 Colchester Avenue

The true value, the hidden risks and the full sale history, in one report.

Pick your report · every report is £14.99

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Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

EPC Rating

A
B
C
D
D65
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
5.7 t/year
Occupancy
Rented
SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraSemi-Detached HouseEPC DPre-1919 build

Because the property was built before 1919, we believe a Level 3 building survey should be considered.

From £1,020 · Includes VAT

Planning

Planning history

Applications and permits filed against 21 Colchester Avenue, Penylan, Cardiff, CF23 9BN, sourced from the PlanIt planning register.

21 Colchester Avenue has no planning applications on record.

2

But the area is active

2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

The latest sale landed in the post-pandemic price surge — useful context when reading the figure.

Current estimate

£488,000

Modelled from EPC, postcode comparables and a sale-price growth of 1.9% per year over 14 years.

See how we calculated this
Last sold (2020)

£430,000

Growth on file: 1.9% per year over 14 years.

Sales timeline

  1. 30 October 2020Most recent

    £430,000

    +30.3%over 14 years

  2. 30 August 2006

    £330,000

Median price across the last 5 sales in CF23 9BN: £405,000 (2025–2015).

On the street

Versus other Colchester Avenue homes

Four headline reads against 9 similar houses on this street, drawn from the latest EPC and Land Registry data.

On epc rating, 21 Colchester Avenue stands well clear of the street.

Price per m²

£2,867

Street avg £2,814

On par

Floor Area

150 m²

Street avg 146 m²

On par

Habitable Rooms

6 rooms

Street avg 6 rooms

On par

CO₂ Emissions

5.7 t/year

Street avg 6.8 t/year

Above
Before you decide

Everything you need to know about 21 Colchester Avenue

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

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£502k

1 Earl S Court Road, Penylan

CF23 9DD

4 bed
£450k

1 Barons Court Road, Penylan

CF23 9DF

£450k

1 Colchester Avenue, Penylan

CF23 9BN

£534k

1 Clos Gwrgi, Penylan

CF23 9FQ

£399k

1 Hugon Close

CF23 9BY

3 bed1 bath
£360k

1 Baber Close

CF23 9BX

£350k

1 Firstbrook Close

CF23 9ER

3 bed2 bath
£344k

1 Doe Close, Penylan

CF23 9HJ

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Cardiff district page.
Full Cardiff report

Reported crime in the wider district is trending notably upward year-on-year.

Crime

9/mo

Rising year-on-year across the wider district.

Nearest stop

0.1 km

Colchester Avenue Top — bus stop.

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 Colchester Avenue, Penylan, Cardiff, CF23 9BN. Each answer is also embedded as structured data for search engines.