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15 Grafton Close, Penylan, Cardiff, CF23 9JA

How much is 15 Grafton Close, Penylan, Cardiff, CF23 9JA worth?

Estimated value — October 2026

£353,000

Likely range £351,000 – £355,000

Latest recorded sale May 1999

0%

confidence

Low

Property details

Semi-detached house

Grafton Close · Cardiff · CF23 9JA

100 m²1,076 sq ftFloor area
1967-1975Built
Mains gas boilerHeating

Energy performance

Current ratingD65
PotentialC80

Mains Gas (Not Community) · EPC 0627-2850-7662-9474-9261 · inspected June 2014 · lodged July 2014

Address

District
Cardiff
County
Cardiff
See house prices in CF23 →

Value over time

  • Modelled value
  • Today's estimate
£0£100k£200k£300k£400k20002002200420062008201020122014201620182020202220242026£353,000

Modelled by indexing this property's most recent recorded sale, month by month, against the UK House Price Index for its area and property type. Earlier sales are shown as recorded. Today's estimate also blends in the other valuation methods, so it can sit a little off the line.

View as a table
Modelled value at the end of each year, with any recorded sales
YearModelled value
2000£87,252
2001£100,403
2002£124,487
2003£147,610
2004£180,394
2005£183,952
2006£194,009
2007£198,347
2008£177,511
2009£182,556
2010£186,683
2011£192,126
2012£192,624
2013£199,027
2014£218,459
2015£227,801
2016£235,703
2017£249,018
2018£260,731
2019£270,767
2020£279,162
2021£306,478
2022£342,508
2023£336,696
2024£340,725
2025£348,052
2026£355,384

Sale history

1995Sold
£57,000
1999Sold
+28%£72,950
2026Today — estimated
+384%£353,000

Mortgage calculator

£1,676

Estimated monthly repayment

£317,700

Loan amount

£285,832

Total interest

£603,532

Total repayable

A guide only, based on a capital repayment mortgage held at a constant interest rate for the full term. Not a mortgage offer or financial advice.

Related properties

About this property

15 Grafton Close, Penylan, Cardiff, CF23 9JA is a semi-detached house on Grafton Close in Cardiff. Stede's estimated value for October 2026 is £353,000. The likely range is £351,000 to £355,000. It is the average of 2 independent methods that re-index recorded sale prices to today. The confidence score is 0 out of 100 (low), based on how recent the most recent recorded sale is.

It last sold in May 1999 for £72,950. It has 2 sales on record, the earliest in 1995. The current estimate is 384% higher than that price. The current owner has held it for about 27 years.

Its EPC energy-efficiency rating is band D (65 out of 100), with a potential of band C (80) after the recommended improvements. The certificate records a total floor area of 100 m² (1,076 sq ft). It was lodged in July 2014.

The modelled value is up 4% over the past year and up 20% over the past five years.

Among 10 nearby properties Stede tracks in the CF23 area, estimated values run from £186,000 to £439,000. This semi-detached house's £353,000 sits toward the upper end of that range.

Common questions

How much is 15 Grafton Close, Penylan, Cardiff, CF23 9JA worth?

Stede estimates 15 Grafton Close, Penylan, Cardiff, CF23 9JA is worth £353,000 as of October 2026, within a likely range of £351,000 to £355,000. The estimate is generated automatically from recorded sale prices and the UK House Price Index, and is not a formal valuation.

When did 15 Grafton Close, Penylan, Cardiff, CF23 9JA last sell?

It last sold in May 1999 for £72,950. There are 2 sales on record, the earliest in 1995.

What type of property is 15 Grafton Close, Penylan, Cardiff, CF23 9JA?

It is recorded as a Semi-detached house on Grafton Close in the CF23 postcode area.

What is the EPC rating of 15 Grafton Close, Penylan, Cardiff, CF23 9JA?

15 Grafton Close, Penylan, Cardiff, CF23 9JA has an EPC energy-efficiency rating of band D (65 out of 100). Its potential rating after the recommended improvements is band C (80). The certificate records a floor area of 100 m² (1,076 sq ft). EPC data is published by the Ministry of Housing, Communities & Local Government and reflects the most recent certificate on record.

How reliable is this estimate?

The confidence score is 0 out of 100 (low), which reflects how recent the most recent recorded sale is rather than local market volatility. The figure is a data model, not a RICS valuation or Home Report, and should not be used for mortgage or legal decisions.

How does Stede calculate this estimate?

Stede runs 2 independent methods that re-index this property's recorded sale prices to today using the House Price Index for its type and region, then takes the average. Full detail is on the methodology page.

How we calculated this

This estimate averages 2 valuation methods, each re-indexing recorded sale prices to today. The confidence score reflects how recent the most recent recorded sale is.

2

Valuation methods used

2

Recorded sales on file

1999

Most recent recorded sale

Read the full methodology and data sources →