Model valuation£417,0008 Busby Close
Local market context
20 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
3 sales on record1 planning record
Estimated value
£1,343,000
- Since the 2016 sale (£765,000)+76%
- Against CF3 6AA's recent median (£590,000)+128%
Newest record on this page: November 2024. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.
Property type
Detached
Habitable rooms
10
From EPC
Floor area
343 m²
3692 sq ft
Energy rating
C
Score 70
Tenure
Owner Occupied
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
£1,343,000
- Against its 2016 sale (£765,000)+76%
- Against CF3 6AA's recent median (£590,000)+128%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 20 Cefn Mably Park is modelled from its 343 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in CF3 6AA. 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
343 m² from the EPC lodged in November 2015
Sales of this home
3 sales recorded, the latest in 2016
Recent sales in CF3 6AA
5 sales, median £590,000 (2024–2021)
This page or the full report?
| Data | This page | Full report |
|---|---|---|
| Sales | Latest sale shown: November 2024 | Latest available records, read when you order |
| Valuation | Estimate from the last refresh | Analysed against comparable sales |
| Planning | 1 application | Full history, plus nearby schemes |
| Flood risk | Not shown | Included |
Sales history & valuation
Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.
20 Cefn Mably Park's sale-price growth has lagged the wider UK trajectory across its history on file.
Sales timeline
28 March 2016Most recent
£765,000
-22.3%over 9 years16 October 2006
£985,000
+57.6%over 6 years23 April 2000
£625,000
Median price across the last 5 sales in CF3 6AA: £590,000 (2024–2021).
Nearby sales in CF3 6AA
4 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
Sold Nov 2024
£450,00012 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
Sold Jul 2024
£610,00016 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
Sold Oct 2023
£1,250,0009 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
Sold Jun 2023
£590,00043 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
Sold Nov 2021
£360,000
What this page doesn't show
1 potential issue has already been flagged for 20 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA. 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
About 20 Cefn Mably Park
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
20 Cefn Mably Park is a detached house in Michaelston-Y-Fedw, Cardiff, Cardiff (CF3 6AA). It has a recorded floor area of 343 m² (around 3692 sq ft) and construction records dating it to 2003-2006. The latest certificate (November 2015) shows a C (score 70). The rating has held steady at C across 2 certificates since September 2014. Between certificates, window efficiency dropped from Good to Average and hot-water efficiency dropped from Good to Average. The latest certificate is from November 2015, so improvements made since then won't be reflected.
At 343 m² the property is well over the postcode median (199 m² across 35 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). Across 2000–2016, sale prices on this property compounded at 1.3% per year. Today's modelled estimate of £1,343,000 sits 75.6% above the 2016 sale of £765,000. One planning record on file: an extension approved in 2017. Past consents include an extension, meaningful when judging how the property has evolved. 10 years since the last transfer (March 2016).
Before you decide
Everything you need to know about 20 Cefn Mably Park
The true value, the hidden risks and the full sale history, in one report.
Larger development activity nearby
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The data behind every report
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
20 Cefn Mably Park's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 12 Nov 2025
Current Certificate(1 of 2)
Nov 2015
EPC Rating
A
B
C
C70
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Average
CO2 Emissions
8.7 t/year
Occupancy
Owner Occupied
Certificate validity
Expired on 12 November 2025
Property Improvements
Changes detected from historical EPC data
Nov 2015from Sept 2014
Heating Controls
FullProg + TRVs
Heating controls changed
Hot Water
GoodAverage
Hot water efficiency decreased
Roof Insulation
InsulatedWell Insulated
Loft insulation upgraded to recommended levels
Low Energy Lighting
38%0%
Low energy lighting percentage decreased
Planning history
Applications and permits filed against 20 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA, sourced from the PlanIt planning register.
20 Cefn Mably Park has an approved single-storey rear extension on the planning record.
1 application on record at 20 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA
1decisions1extensions8documents1nearby
Flagged:Retrospective
- Nov 2017ExtensionOutcome in report
Extension: Single storey · Rear of property
Retain single storey rear extension
Retrospective- Documents
- 8 docs on file
- Reference
- 17/0833/RET
Unlock 20 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 1 notable nearby
- The 8 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Versus other Cefn Mably Park homes
Four headline reads against 26 similar houses on this street, drawn from the latest EPC and Land Registry data.
On floor area, 20 Cefn Mably Park stands well clear of the street.
Price per m²
£2,230
Street avg £2,764
Floor Area
343 m²
Street avg 265 m²
Habitable Rooms
10 rooms
Street avg 8 rooms
CO₂ Emissions
8.7 t/year
Street avg 8.6 t/year
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
242/mo
Falling year-on-year across the wider district.
Nearest stop
1.3 km
Cardiff Gate — bus stop.
Nearest stops
- Cardiff GateBus stop1.3km
- Mortimer AvenueBus stop1.4km
- Rogers AvenueBus stop1.5km
- Heol Booths 3Bus stop1.5km
Most reported crime locally
- Violence & Sexual Offences1,550 reports36%
- Anti-social Behaviour627 reports14%
- Public Order468 reports11%
- Criminal Damage & Arson424 reports10%
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Get a survey for this property
Level 3 Building Survey
21st centuryDetached HouseEPC CDetached over 300m²
Because the property is a large detached home over 300m², we believe a Level 3 building survey should be considered.
From £1,645 · Includes VAT
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£1.3m
1 High Trees Court, Druidstone Road, Old St Mellons
CF3 6AZ
£715k
1 Minorca Cottages, Michaelston Y Fedw
CF3 6XX
5 bed
£681k
1 New Park Cottages, Castleton
CF3 6US
£630k
1 Tai Derwen, Cefn Mably
CF3 6XR
4 bed2 bath
£623k
1 Heol Bennett, Old St Mellons
CF3 6AF
£551k
1 Ruperra Close, Old St Mellons
CF3 6HX
4 bed2 bath
£548k
1 Rhodfa Lewis, Old St Mellons
CF3 6YP
£459k
1 George Crescent, Old St Mellons
CF3 6AH
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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 20 Cefn Mably Park is modelled from its 343 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in CF3 6AA. 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. 3 sales are recorded for 20 Cefn Mably Park. 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 20 Cefn Mably Park was lodged in November 2015 at band C and expired in November 2025, 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. 1 application is matched to 20 Cefn Mably Park. 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 CF3 6AA.
Common questions
The questions buyers, sellers and homeowners most often ask about 20 Cefn Mably Park, Michaelston Y Fedw, Cardiff, CF3 6AA. Each answer is also embedded as structured data for search engines.
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- Every home in CF3 6AASold prices, values and energy ratings for the postcode
- CF 3 property marketPrices, postcodes, schools and transport across the district
- 20 Cefn Mably Park, Michaelston Y Fedw, Cardiff valuationHow the estimate is built and what moves it
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