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15 Maes Y Ffynnon, Bonvilston, Cardiff, CF5 6TT

5 sales on record

Estimated value

£223,000

  • Since the 2022 sale (£190,000)+17%
  • Against CF5 6TT's recent median (£335,000)-33%

Newest record on this page: July 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
Floor Ground
Bedrooms
2
Bathroom
1
Floor area
60 m²
646 sq ft
Energy rating
D
Score 57
Council tax
Band C
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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

£223,000

  • Against its 2022 sale (£190,000)+17%
  • Against CF5 6TT's recent median (£335,000)-33%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 15 Maes Y Ffynnon is modelled from its 60 m² EPC floor area, its 5 recorded sales and recent sales of comparable homes in CF5 6TT. 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

    60 m² from the EPC lodged in August 2014

  • Sales of this home

    5 sales recorded, the latest in 2022

  • Recent sales in CF5 6TT

    5 sales, median £335,000 (2025–2023)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: July 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.

15 Maes Y Ffynnon has changed hands more often than typical for the area.

Sales timeline

  1. 13 June 2022Most recent

    £190,000

    +40.7%over 5 years

  2. 22 December 2016

    £135,000

    +3.8%over 9 months

  3. 23 March 2016

    £130,000

    -13.3%over 8 years

  4. 4 March 2008

    £150,000

    +22.0%over 2 years

  5. 11 January 2006

    £123,000

Median price across the last 5 sales in CF5 6TT: £335,000 (2025–2023).

Risks

What this page doesn't show

1 potential issue has already been flagged for 15 Maes Y Ffynnon, Bonvilston, Cardiff, CF5 6TT. 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 15 Maes Y Ffynnon

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

15 Maes Y Ffynnon is a two-bedroom semi-detached house in Bonvilston, Cardiff, Cardiff (CF5 6TT). It has a recorded floor area of 60 m² (around 646 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (August 2014) shows a D (score 57), a step below the typical UK home. When first surveyed in October 2009 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good, window efficiency went from Poor to Average and hot-water efficiency went from Very Poor to Poor. The recommended improvements would push it to C (score 74). The latest certificate is from August 2014, so improvements made since then won't be reflected. At 60 m² this is the 4th smallest of 18 units on EPC record in the building, where floor areas span 59–143 m². The building's EPC ratings span E to C across 18 units on file. Other recorded features include a self-contained annexe.

At 60 m² it sits well below the postcode median (92 m² across 17 EPCs), making it one of the more compact homes locally. Most recent transfer: June 2022 at £190,000. Across the public record there are 5 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 2006–2022, sale prices on this property compounded at 2.7% per year. Today's modelled estimate of £223,000 is 17.4% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£294/sq ft) was about 56.5% 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
  • Dining roomYes
  • StudyYes

Outside

  • Private gardenRear

Building

  • RefurbishedYes
Before you decide

Everything you need to know about 15 Maes Y Ffynnon

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.

15 Maes Y Ffynnon'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 28 Aug 2024

Current Certificate(1 of 2)
Aug 2014

EPC Rating

A
B
C
D
D57
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Poor
Windows
Average
CO2 Emissions
3.5 t/year
Occupancy
—

Certificate validity

Expired on 28 August 2024

New assessment needed to sell or let

Property Improvements

Changes detected from historical EPC data

Aug 2014from Oct 2009
EPC improved fromE48toD57
Hot Water
ImmersionMain System

Hot water system upgraded

Windows
Partial DoubleFull Double

Windows upgraded, improving insulation

Wall Insulation
UninsulatedInsulated Cavity

Cavity wall insulation installed

Low Energy Lighting
0%90%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 15 Maes Y Ffynnon, Bonvilston, Cardiff, CF5 6TT, sourced from the PlanIt planning register.

15 Maes Y Ffynnon 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 Maes Y Ffynnon homes

Four headline reads against 3 similar flats on this street, drawn from the latest EPC and Land Registry data.

15 Maes Y Ffynnon is notably below the street on epc rating.

EPC Rating

57 (D)

Street avg 78 (C)

Strongly below

Floor Area

60 m²

Street avg 59 m²

Strongly above

CO₂ Emissions

3.5 t/year

Street avg 1.4 t/year

Strongly below

Habitable Rooms

3 rooms

Street avg 3 rooms

On par
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

0.1 km

Maes-y-Ffynon — bus stop.

Nearest stops

  • Maes-y-FfynonBus stop124m
  • The Old ForgeBus stop189m
  • BonvilstonBus stop295m
  • Sycamore CrossBus stop541m

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 3 Building Survey

Victorian-eraGround Floor FlatEPC DPre-1919 build

Because the property was built before 1919, we believe a Level 3 building survey should be considered.

From £885 · 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.
£230k

1 Chestnut Cottages, Croft Y Genau Road, St Fagans

CF5 6EG

2 bed1 bath
£288k

1 Cottage Row, Twyn Yr Odyn

CF5 6BN

2 bed2 bath
£351k

1 Cardiff Road, St Fagans

CF5 6EB

2 bed
£385k

1 Church Row, St Nicholas

CF5 6SP

3 bed
£220k

1 Castle Hill, St Fagans

CF5 6EJ

£219k

1 Cilffordd Y Coed, Capel Llanilltern

CF5 6GN

£493k

1 Caer Ceffyl, St Fagans

CF5 6HT

4 bed3 bath

1 Ael Y Bryn, Peterston Super Ely

CF5 6LL

3 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 15 Maes Y Ffynnon is modelled from its 60 m² EPC floor area, its 5 recorded sales and recent sales of comparable homes in CF5 6TT. 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. 5 sales are recorded for 15 Maes Y Ffynnon. 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 15 Maes Y Ffynnon was lodged in August 2014 at band D and expired in August 2024, 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 15 Maes Y Ffynnon. 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 6TT.
Council tax band
15 Maes Y Ffynnon is in council tax band C. 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 15 Maes Y Ffynnon, Bonvilston, Cardiff, CF5 6TT. Each answer is also embedded as structured data for search engines.

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