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Harlech House, Flat 9, Heol Isaf, Radyr, Cardiff, CF15 8AP

4 sales on record

Estimated value

£181,000

  • Since the 2022 sale (£162,000)+12%
  • Against CF15 8AP's recent median (£142,000)+27%

Newest record on this page: March 2026. 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
Floor 02
Bedrooms
2
Bathroom
1
Floor area
73 m²
786 sq ft
Energy rating
C
Score 77
Council tax
Band D
Tenure
Social Rental
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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

£181,000

  • Against its 2022 sale (£162,000)+12%
  • Against CF15 8AP's recent median (£142,000)+27%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for Harlech House is modelled from its 73 m² EPC floor area, its 4 recorded sales and recent sales of comparable homes in CF15 8AP. 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

    73 m² from the EPC lodged in March 2026

  • Sales of this home

    4 sales recorded, the latest in 2022

  • Recent sales in CF15 8AP

    5 sales, median £142,000 (2024–2016)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: March 2024Latest 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.

Harlech House has more than doubled in price since the earliest registered sale in 1999.

Sales timeline

  1. 11 November 2022Most recent

    £162,000

    +17.4%over 4 years

  2. 29 October 2018

    £138,000

    +6.6%over 3 years

  3. 16 July 2015

    £129,500

    +135.5%over 16 years

  4. 9 February 1999

    £55,000

Median price across the last 5 sales in CF15 8AP: £142,000 (2024–2016).

Risks

What this page doesn't show

1 potential issue has already been flagged for Harlech House, Flat 9, Heol Isaf, Radyr, Cardiff, CF15 8AP. The detail, evidence and what to ask about it are in the Risks Report.
  • Larger development activity nearbyIn 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 Harlech House

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

Harlech House is a two-bedroom semi-detached house in Radyr, Cardiff, Cardiff (CF15 8AP). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (March 2026) shows a C (score 77), near the top of the C band. When first surveyed in November 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Average to Good, roof efficiency went from Poor to Average and hot-water efficiency went from Average to Good; while window efficiency dropped from Average to Poor. This certificate was lodged in the last six months, so the rating reflects current condition. At 73 m² this is the 4th smallest of 12 units on EPC record in Harlech House, where floor areas span 70–73 m². The building's EPC ratings span D to B across 12 units on file. Other recorded features include a loft.

Sold November 2022 for £162,000. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 1999–2022, sale prices on this property compounded at 4.7% per year. Today's modelled estimate of £181,000 is 11.7% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£206/sq ft) was about 25.2% above the typical sold price in the postcode.

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

  • Bedrooms2
  • Bathrooms1
  • LoftYes

Outside

  • ParkingAllocated

Building

  • RefurbishedYes
Before you decide

Everything you need to know about Harlech House

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

Larger development activity nearby

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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.

The EPC has just been inspected, so the rating reflects current condition.

Current Certificate(1 of 2)
Mar 2026

EPC Rating

A
B
C
C77
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
1.8 t/year
Occupancy
Rented

Certificate validity

Valid until 12 March 2036

9 years remaining

Property Improvements

Changes detected from historical EPC data

Mar 2026from Nov 2013
EPC improved fromD62toC77
Heating Controls
Prog + StatFull

Heating controls upgraded for better temperature management

Hot Water
AverageGood

Hot water efficiency improved

Wall Insulation
Partial InsulationInsulated Cavity

Wall insulation upgraded

Roof Insulation
PartialWell Insulated

Loft insulation upgraded to recommended levels

Low Energy Lighting
14%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against Harlech House, Flat 9, Heol Isaf, Radyr, Cardiff, CF15 8AP, sourced from the PlanIt planning register.

Harlech House has no planning applications on record.

1

But the area is active

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

On the street

Versus other Heol Isaf homes

Four headline reads against 11 similar flats on this street, drawn from the latest EPC and Land Registry data.

Habitable Rooms for Harlech House lags the street by a wide margin.

Price per m²

£2,219

Street avg £1,827

Strongly above

Floor Area

73 m²

Street avg 72 m²

On par

Habitable Rooms

2 rooms

Street avg 4 rooms

Strongly below

CO₂ Emissions

1.8 t/year

Street avg 2.1 t/year

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.
Full Cardiff report

Rail-style transport is unusually close for this postcode.

Crime

85/mo

Steady year-on-year across the wider district.

Nearest stop

0.0 km

Danybryn — bus stop.

Nearest stops

  • DanybrynBus stop33m
  • DanybrynBus stop68m
  • Radyr Police StationBus stop185m
  • Radyr LibraryBus stop214m

Most reported crime locally

  • Violence & Sexual Offences366 reports33%
  • Anti-social Behaviour150 reports14%
  • Public Order141 reports13%
  • Shoplifting104 reports9%

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 2 HomeBuyer Report

Late 20th century2nd Floor FlatEPC C

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

From £495 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£181k

Harlech House, Flat 1, Heol Isaf, Radyr

CF15 8AP

Flat2 bed
£175k

Harlech House, Flat 6, Heol Isaf, Radyr

CF15 8AP

Flat2 bed1 bath
£189k

Argyll Court, Flat 3, Maes Yr Awel, Radyr

CF15 8AW

Flat2 bed
£200k

Argyll Court, Flat 1, Maes Yr Awel, Radyr

CF15 8AW

Flat2 bed
£204k

Castle Court, Flat 2, Caer Graig, Radyr

CF15 8RD

Flat2 bed
£207k

Harlech House, Flat 3, Heol Isaf, Radyr

CF15 8AP

Flat2 bed1 bath
£148k

Castle Court, Flat 1, Caer Graig, Radyr

CF15 8RD

Flat2 bed
£232k

Argyll Court, Flat 6, Maes Yr Awel, Radyr

CF15 8AW

Flat2 bed1 bath

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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.
Valuation method in detail
How the estimate is made
The estimate for Harlech House is modelled from its 73 m² EPC floor area, its 4 recorded sales and recent sales of comparable homes in CF15 8AP. 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. 4 sales are recorded for Harlech House. 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 Harlech House was lodged in March 2026 at band C and is valid until March 2036. 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 Harlech House. 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 13 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF15 8AP.
Council tax band
Harlech House is in council tax band D. 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 Harlech House, Flat 9, Heol Isaf, Radyr, Cardiff, CF15 8AP. Each answer is also embedded as structured data for search engines.

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