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17 Grafton Close, Penylan, Cardiff, CF23 9JA

Estimated value

£268,000

  • Since the 2017 sale (£130,000)+106%
  • Against CF23 9JA's recent median (£270,000)-1%

Newest record on this page: August 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Semi-detached
Habitable rooms
4
From EPC
Floor area
90 m²
969 sq ft
Energy rating
C
Score 69
Council tax
Band F
Tenure
Owner Occupied
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£268,000

  • Against its 2017 sale (£130,000)+106%
  • Against CF23 9JA's recent median (£270,000)-1%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 17 Grafton Close is modelled from its 90 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF23 9JA. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    90 m² from the EPC lodged in November 2013

  • Sales of this home

    2 sales recorded, the latest in 2017

  • Recent sales in CF23 9JA

    5 sales, median £270,000 (2025–2021)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: August 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

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

Risks

What this page doesn't show

Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks Report.
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

One time fee only - money back guarantee

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 £268,000 sits 106.2% 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).

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.

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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.

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

A
B
C
C69
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
3.0 t/year
Occupancy
Owner Occupied

Certificate validity

Expired on 26 November 2023

New assessment needed to sell or let

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

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.

2

But the area is active

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

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
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.

Crime

169/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Grafton Close — bus stop.

Nearest stops

  • Grafton CloseBus stop73m
  • Lothian CresBus stop182m
  • Lonsdale RoadBus stop220m
  • Ysgol Bro EdernBus stop239m

Most reported crime locally

  • Violence & Sexual Offences995 reports33%
  • Anti-social Behaviour345 reports11%
  • Public Order344 reports11%
  • Shoplifting340 reports11%

Go deeper on the local area

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

SDL Surveying

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

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
How the estimate is made
The estimate for 17 Grafton Close is modelled from its 90 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF23 9JA. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 2 sales are recorded for 17 Grafton Close. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 17 Grafton Close was lodged in November 2013 at band C and expired in November 2023, so a new one is needed to sell or let. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 17 Grafton Close. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 18 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF23 9JA.
Council tax band
17 Grafton Close is in council tax band F. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
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.

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