What kind of home is 17 Colchester Avenue, CF23 9BN?

17 Colchester Avenue, CF23 9BN is a 3-bedroom semi-detached house.

When did 17 Colchester Avenue, CF23 9BN last change hands?

17 Colchester Avenue, CF23 9BN last sold for £378,000 in June 2024, around 2 years ago. Before that, it sold for £165,000 in August 2002, so prices have been rising over 22 years on record. Source: HM Land Registry.

Has 17 Colchester Avenue, CF23 9BN appreciated in value?

Across 2 sales between August 2002 and June 2024, 17 Colchester Avenue, CF23 9BN rose from £165,000 to £378,000, a change of £213,000. That works out to roughly +3.9% per year compounded over 22 years. Source: HM Land Registry.

What energy rating does 17 Colchester Avenue, CF23 9BN have?

The current EPC rating for 17 Colchester Avenue, CF23 9BN is D with a score of 61 out of 100, lodged in January 2024. The assessor estimates the property could reach a B. Source: EPC Register.

How big is 17 Colchester Avenue, CF23 9BN?

17 Colchester Avenue, CF23 9BN has a recorded floor area of 130 m² (1,399 sq ft), around 43 m² per bedroom. That makes it about 30% larger than the median EPC-recorded property in CF23 9BN. Source: EPC Register.

What heating system does 17 Colchester Avenue, CF23 9BN use?

The latest EPC at 17 Colchester Avenue, CF23 9BN records mains gas as the main heating fuel. Source: EPC Register.

Has 17 Colchester Avenue, CF23 9BN had any planning applications?

17 Colchester Avenue, CF23 9BN has council approval for single-storey rear extension granted in November 2024 under ref. 24/01759/HSE. Source: PlanIt planning register.

What is the council tax band for 17 Colchester Avenue, CF23 9BN?

17 Colchester Avenue, CF23 9BN is in council tax band D.

Which area is 17 Colchester Avenue, CF23 9BN in?

17 Colchester Avenue, CF23 9BN sits in Penylan, Cardiff, Cardiff. It falls within the CF23 postcode district.

Is 17 Colchester Avenue, CF23 9BN in a safe area?

Police records around 17 Colchester Avenue, CF23 9BN show an average of 9 reported crimes per month over the last 12 months. Violent crime makes up roughly 41% of reports, the most common category. The overall trend is rising (143% versus the prior period). Source: Police UK.

How well connected is 17 Colchester Avenue, CF23 9BN?

The closest bus stop to 17 Colchester Avenue, CF23 9BN is Colchester Avenue Top, 85m away. In total there are 30 bus stops within the surrounding area.

Calculators

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17 Colchester Avenue, Penylan, Cardiff, CF23 9BN

1 planning record

Property type

Semi-detached

Bedrooms

Bathroom

Floor area

130 m²

1399 sq ft

Energy rating

Score 61

Council tax

Band D

Tenure

Owner Occupied

Overview

About 17 Colchester Avenue

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

17 Colchester Avenue is a three-bedroom semi-detached house in Penylan, Cardiff, Cardiff (CF23 9BN). It has a recorded floor area of 130 m² (around 1399 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (January 2024) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since November 2012. Between certificates, roof efficiency dropped from Very Good to Good and hot-water efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 84), a 2-band jump.

One planning record on file: an extension approved in 2024. Past consents include an extension, meaningful when judging how the property has evolved. Across 2002–2024, sale prices on this property compounded at 3.9% per year. On a £-per-square-foot basis, the last sale (£270/sq ft) was about 27.7% above the typical sold price in the postcode. Sold June 2024 for £378,000.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

Bedrooms3
Bathrooms1

Before you decide

Everything you need to know about 17 Colchester Avenue

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

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The data behind every report

Energy

Energy performance

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

17 Colchester Avenue's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate(1 of 3)

Jan 2024

EPC Rating

D61

Main Heating

Gas

Main Fuel

Gas

Hot Water

Poor

Windows

Very Poor

CO2 Emissions

6.1 t/year

Occupancy

Owner Occupied

Property Improvements

Changes detected from historical EPC data

May 2017from Nov 2012

EPC improved fromD57toC78

Heating Controls

Prog + StatProg + TRVs

Heating controls changed

Hot Water

Main (No Stat)Main System

Hot water system upgraded

Windows

SingleFull Double

Single glazing replaced with double or better glazing

Wall Insulation

UninsulatedInsulated Cavity

Cavity wall insulation installed

Floor Insulation

UninsulatedInsulated

Floor insulation added or improved

Low Energy Lighting

80%100%

More low energy lighting installed

Jan 2024from May 2017

EPC improved fromC78toD61

Heating Controls

Prog + TRVsThermostat

Heating controls changed

Hot Water

Main SystemMain (No Stat)

Hot water system changed

Low Energy Lighting

100%40%

Low energy lighting percentage decreased

Renewable Energy

NoneSolar PV

Solar PV panels (30 kWp) installed

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 17 Colchester Avenue, Penylan, Cardiff, CF23 9BN, sourced from the PlanIt planning register.

1 application on record at 17 Colchester Avenue, Penylan, Cardiff, CF23 9BN

1decisions1extensions7documents2nearby

Nov 2024
ExtensionFull
Outcome in report
Extension: Single storey · Rear of property
Part demolition of Ground Floor. Hip to gable roof extension. Conversion of the loft space to form an additional room. Construction of a single storey rear extension.
Documents
7 docs on file
Reference
24/01759/HSE
Full record in report

Unlock 17 Colchester Avenue, Penylan, Cardiff, CF23 9BN's full planning history

You're seeing the shape of it. The report has the substance.

Every decision — granted, refused or withdrawn (1 on record)
All 1 application on this property in full, plus 2 notable nearby
The 7 documents, officer reports & conditions
What the pattern means for extending or converting here

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One time fee only - money back guarantee

Price

Sales history & valuation

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

Sale price has at least doubled since 2002.

Current estimate

£407,000

Modelled from EPC, postcode comparables and a sale-price growth of 3.9% per year over 22 years.

See how we calculated this

Last sold (2024)

£378,000

Growth on file: 3.9% per year over 22 years.

Sales timeline

11 June 2024Most recent
£378,000
+129.1%over 21 years
29 August 2002
£165,000

Median price across the last 5 sales in CF23 9BN: £430,000 (2025–2015).

Nearby sales in CF23 9BN

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 years held, 17 Colchester Avenue runs well behind the street norm.

Price per m²

£2,908

Street avg £2,809

Above

Floor Area

130 m²

Street avg 149 m²

Below

Habitable Rooms

5 rooms

Street avg 6 rooms

Strongly below

CO₂ Emissions

6.1 t/year

Street avg 6.8 t/year

Above

Before you decide

Everything you need to know about 17 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

The data behind every report

Comparables

Similar properties nearby

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

£399k

1 Hugon Close

CF23 9BY

3 bed1 bath

£350k

1 Firstbrook Close

CF23 9ER

3 bed2 bath

£328k

1 Kingwood Close, Penylan

CF23 9HE

3 bed1 bath

£188k

1 Bryn Y Nant, Llanedeyrn

CF23 9NZ

3 bed

£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

£360k

1 Baber Close

CF23 9BX

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 17 Colchester Avenue, Penylan, Cardiff, CF23 9BN. Each answer is also embedded as structured data for search engines.