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17 Heol Isaf, Radyr, Cardiff, CF15 8AG

3 sales on record
Property type
Detached
Habitable rooms
11
From EPC
Floor area
251 m²
2702 sq ft
Energy rating
E
Score 49
Council tax
Band H
Tenure
Owner Occupied
Overview

About 17 Heol Isaf

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

17 Heol Isaf is a detached house in Radyr, Cardiff, Cardiff (CF15 8AG). It has a recorded floor area of 251 m² (around 2702 sq ft), construction records dating it to 1900-1929 and council tax band H. The latest certificate (June 2022) shows an E (score 49), well below the UK norm with real room to improve. When first surveyed in August 2012 the rating was F, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Poor. The recommended improvements would lift it to C (score 76), a 2-band jump.

At 251 m² the property is well over the postcode median (159 m² across 4 EPCs), placing it in the larger end of the local stock. Across 1996–2023, sale prices on this property compounded at 5.6% per year. On a £-per-square-foot basis, the last sale (£416/sq ft) was about 213.7% above the typical sold price in the postcode. Sold January 2023 for £1,125,000.

Before you decide

Everything you need to know about 17 Heol Isaf

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

Larger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

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 Heol Isaf's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate(1 of 2)
Jun 2022

EPC Rating

A
B
C
D
E
E49
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
12.0 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Jun 2022from Aug 2012
EPC improved fromF31toE49
Windows
Mostly DoubleFull Double

Windows upgraded, improving insulation

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraDetached HouseEPC EPre-1919 buildExtended multiple times (2+ extensions)Solid (non-cavity) walls

Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £1,645 · Includes VAT

Planning

Planning history

Applications and permits filed against 17 Heol Isaf, Radyr, Cardiff, CF15 8AG, sourced from the PlanIt planning register.

17 Heol Isaf has no planning applications on record.

3

But the area is active

3 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.

Latest sale on 17 Heol Isaf was the highest on Land Registry record across the postcode.

Current estimate

£1,236,000

Modelled from EPC, postcode comparables and a sale-price growth of 5.6% per year over 26 years.

See how we calculated this
Last sold (2023)

£1,125,000

Growth on file: 5.6% per year over 26 years.

Sales timeline

  1. 13 January 2023Most recent

    £1,125,000

    +382.8%over 23 years

  2. 24 May 1999

    £233,000

    -11.7%over 2 years

  3. 26 August 1996

    £264,000

Median price across the last 5 sales in CF15 8AG: £249,950 (2023–2002).

Before you decide

Everything you need to know about 17 Heol Isaf

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

Larger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

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
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£697k

1 Caer Idwen, Morganstown

CF15 8FZ

4 bed3 bath
£667k

1 Clos Harry Corner, Radyr

CF15 8GR

£584k

1 Clos Tylaway, Radyr

CF15 8DU

4 bed3 bath
£579k

1 Bates Court, Radyr

CF15 8EJ

5 bed3 bath
£555k

1 Cilfedw, Radyr

CF15 8AR

£555k

1 Clos Y Mynydd, Morganstown

CF15 8FH

4 bed2 bath
£520k

1 Bryn Calch, Morganstown

CF15 8FD

5 bed2 bath
£518k

1 Bryncoed, Radyr

CF15 8RH

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

2/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Danybryn — 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 Heol Isaf, Radyr, Cardiff, CF15 8AG. Each answer is also embedded as structured data for search engines.