What kind of home is 17 Grafton Close, CF23 9JA?

17 Grafton Close, CF23 9JA is a semi-detached house.

What did 17 Grafton Close, CF23 9JA sell for?

17 Grafton Close, CF23 9JA last sold for £130,000 in October 2017, around 9 years ago. Before that, it sold for £174,950 in December 2009, so prices have been falling over 8 years on record. Source: HM Land Registry.

How has the value of 17 Grafton Close, CF23 9JA changed over time?

Across 2 sales between December 2009 and October 2017, 17 Grafton Close, CF23 9JA fell from £174,950 to £130,000, a change of £44,950. That works out to roughly -3.7% per year compounded over 8 years. Source: HM Land Registry.

What energy rating does 17 Grafton Close, CF23 9JA have?

The current EPC rating for 17 Grafton Close, CF23 9JA is C with a score of 69 out of 100, lodged in November 2013. It has improved from a E recorded in October 2009 (2 bands). The assessor estimates the property could reach a B. Source: EPC Register.

How big is 17 Grafton Close, CF23 9JA?

17 Grafton Close, CF23 9JA has a recorded floor area of 90 m² (969 sq ft). Source: EPC Register.

What heating system does 17 Grafton Close, CF23 9JA use?

The latest EPC at 17 Grafton Close, CF23 9JA records mains gas as the main heating fuel. Source: EPC Register.

What is the council tax band for 17 Grafton Close, CF23 9JA?

17 Grafton Close, CF23 9JA is in council tax band F. That sits towards the upper end of the band ladder, typically reflecting larger or higher-value homes.

Which area is 17 Grafton Close, CF23 9JA in?

17 Grafton Close, CF23 9JA sits in Penylan, Cardiff, Cardiff. It falls within the CF23 postcode district.

Is 17 Grafton Close, CF23 9JA in a safe area?

Police records around 17 Grafton Close, CF23 9JA 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 Grafton Close, CF23 9JA?

The closest bus stop to 17 Grafton Close, CF23 9JA is Grafton Close, 73m away. In total there are 30 bus stops within the surrounding area.

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17 Grafton Close, Penylan, Cardiff, CF23 9JA

Property type

Semi-detached

Habitable rooms

From EPC

Floor area

90 m²

969 sq ft

Energy rating

Score 69

Council tax

Band F

Tenure

Owner Occupied

Overview

About 17 Grafton Close

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

17 Grafton Close is a semi-detached house in Penylan, Cardiff, Cardiff (CF23 9JA). It has a recorded floor area of 90 m² (around 969 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (November 2013) shows a C (score 69), just inside the C band. When first surveyed in October 2009 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Good, hot-water efficiency went from Poor to Good and lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 85). The latest certificate is from November 2013, so improvements made since then won't be reflected.

Across 2009–2017, sale prices on this property compounded at -3.7% per year. Today's modelled estimate of £275,000 sits 111.5% above the 2017 sale of £130,000. On a £-per-square-foot basis, the last sale (£134/sq ft) was about 33.4% below the postcode norm. 9 years since the last transfer (October 2017).

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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 Grafton Close's EPC is over a decade old — improvements since won't be reflected.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 26 Nov 2023

Current Certificate(1 of 2)

Nov 2013

EPC Rating

C69

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Average

CO2 Emissions

3.0 t/year

Occupancy

Owner Occupied

Property Improvements

Changes detected from historical EPC data

Nov 2013from Oct 2009

EPC improved fromE43toC69

Heating Controls

Prog + TRVsFull

Heating controls upgraded for better temperature management

Hot Water

Main (No Stat)Main System

Hot water system upgraded

Windows

Partial DoubleFull Double

Windows upgraded, improving insulation

Roof Insulation

UninsulatedWell Insulated

Loft insulation installed or upgraded to 250mm+

Low Energy Lighting

0%91%

More low energy lighting installed

Get a survey for this property

Level 3 Building Survey

Late 20th centurySemi-Detached BungalowEPC CExtended multiple times (2+ extensions)

Because the property has been extended more than once, we believe a Level 3 building survey should be considered.

From £885 · Includes VAT

Planning

Planning history

Applications and permits filed against 17 Grafton Close, Penylan, Cardiff, CF23 9JA, sourced from the PlanIt planning register.

17 Grafton Close has no planning applications on record.

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.

17 Grafton Close valuation sits well clear of the typical sold price in this postcode.

Current estimate

£275,000

Modelled from EPC, postcode comparables and a sale-price growth of -3.7% per year over 8 years.

See how we calculated this

Last sold (2017)

£130,000

Growth on file: -3.7% per year over 8 years.

Sales timeline

26 October 2017Most recent
£130,000
-25.7%over 7 years
22 December 2009
£174,950

Median price across the last 5 sales in CF23 9JA: £270,000 (2025–2021).

Nearby sales in CF23 9JA

On the street

Versus other Grafton Close homes

Four headline reads against 10 similar houses on this street, drawn from the latest EPC and Land Registry data.

Price per m² for 17 Grafton Close lags the street by a wide margin.

Price per m²

£1,444

Street avg £3,174

Strongly below

Floor Area

90 m²

Street avg 90 m²

On par

Habitable Rooms

4 rooms

Street avg 5 rooms

Strongly below

CO₂ Emissions

3.0 t/year

Street avg 3.8 t/year

Strongly above

Before you decide

Everything you need to know about 17 Grafton Close

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.

£274k

1 Howardian Close, Penylan

CF23 9AG

£280k

1 Grafton Close, Penylan

CF23 9JA

£294k

1 Ffordd Nowell, Penylan

CF23 9FA

£253k

1 Eastside Quarter, Maelfa, Llanedeyrn

CF23 9PN

£237k

1 Ferny Court, Waterloo Road, Penylan

CF23 9BU

£328k

1 Kingwood Close, Penylan

CF23 9HE

3 bed1 bath

£344k

1 Doe Close, Penylan

CF23 9HJ

£350k

1 Firstbrook Close

CF23 9ER

3 bed2 bath

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

Grafton Close — 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 Grafton Close, Penylan, Cardiff, CF23 9JA. Each answer is also embedded as structured data for search engines.