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18 Heol Gwern Edyddan, St Fagans, Cardiff, CF5 6FR

EPC B

Estimated value

£315,000

  • Since the 2026 sale (£320,000)-2%
  • Against CF5 6FR's recent median (£309,995)+2%

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 area
77 m²
829 sq ft
Energy rating
B
Score 84
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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

£315,000

  • Against its 2026 sale (£320,000)-2%
  • Against CF5 6FR's recent median (£309,995)+2%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 18 Heol Gwern Edyddan is modelled from its 77 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF5 6FR. 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

    77 m² from the EPC lodged in September 2021

  • Sales of this home

    2 sales recorded, the latest in 2026

  • Recent sales in CF5 6FR

    5 sales, median £309,995 (2025–2021)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: March 2026Latest 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.

Sales timeline

  1. 27 March 2026Most recent

    £320,000

    +13.3%over 4 years

  2. 23 September 2021

    £282,500

Median price across the last 5 sales in CF5 6FR: £309,995 (2025–2021).

Risks

What this page doesn't show

1 potential issue has already been flagged for 18 Heol Gwern Edyddan, St Fagans, Cardiff, CF5 6FR. 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

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Overview

About 18 Heol Gwern Edyddan

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

18 Heol Gwern Edyddan is a semi-detached house in St. Fagans, Cardiff, Cardiff (CF5 6FR). It has a recorded floor area of 77 m² (around 829 sq ft) and construction records dating it to 2021. The latest certificate (September 2021) returns a B (score 84), comfortably above the UK average. The recommended improvements would push it to A (score 96).

Most recent transfer was March 2026 at £320,000 — fresh data. Across 2021–2026, sale prices on this property compounded at 2.8% per year.

Before you decide

Everything you need to know about 18 Heol Gwern Edyddan

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.

18 Heol Gwern Edyddan's carbon output is low for the local stock.

Current Certificate
Sept 2021

EPC Rating

A
B
B84
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Good
CO2 Emissions
1.1 t/year
Occupancy
—

Certificate validity

Valid until 1 September 2031

4 years remaining
Planning

Planning history

Applications and permits filed against 18 Heol Gwern Edyddan, St Fagans, Cardiff, CF5 6FR, sourced from the PlanIt planning register.

18 Heol Gwern Edyddan 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 Gwern Edyddan homes

Four headline reads against 28 similar houses on this street, drawn from the latest EPC and Land Registry data.

Years Held for 18 Heol Gwern Edyddan lags the street by a wide margin.

Price per m²

£4,156

Street avg £3,733

Strongly above

Floor Area

77 m²

Street avg 88 m²

Strongly below

CO₂ Emissions

1.1 t/year

Street avg 1.2 t/year

Above

Years Held

0 years

Street avg 4 years

Strongly below
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

Crime

426/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

Goitre Fach Farm — bus stop.

Nearest stops

  • Goitre Fach FarmBus stop179m
  • Ty GwynBus stop557m
  • Maes y LlechBus stop826m
  • RhydlafarBus stop887m

Most reported crime locally

  • Violence & Sexual Offences2,365 reports35%
  • Anti-social Behaviour878 reports13%
  • Public Order758 reports11%
  • Shoplifting679 reports10%

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

21st centurySemi-Detached HouseEPC B

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 £595 · 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.
£316k

1 Castle Green, St George S Super Ely

CF5 6EX

£292k

1 Clive Cottages, St Fagans

CF5 6EE

£288k

1 Cottage Row, Twyn Yr Odyn

CF5 6BN

2 bed2 bath
£351k

1 Cardiff Road, St Fagans

CF5 6EB

2 bed
£280k

1 Coedlan Y Trenshys, St Fagans

CF5 6FS

£385k

1 Church Row, St Nicholas

CF5 6SP

3 bed
£423k

1 Burdons Close, Wenvoe

CF5 6FE

£425k

1 Clos Yr Onnen, Capel Llanilltern

CF5 6GP

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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 18 Heol Gwern Edyddan is modelled from its 77 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF5 6FR. 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 18 Heol Gwern Edyddan. 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 18 Heol Gwern Edyddan was lodged in September 2021 at band B and is valid until September 2031. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 18 Heol Gwern Edyddan. 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 16 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF5 6FR.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 18 Heol Gwern Edyddan, St Fagans, Cardiff, CF5 6FR. Each answer is also embedded as structured data for search engines.

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