21 Great House Farm, Michaelston Road, St Fagans, Cardiff, CF5 6FL
About 21 Great House Farm
21 Great House Farm is a three-bedroom detached house in St. Fagans, Cardiff, Cardiff (CF5 6FL). It has a recorded floor area of 111 m² (around 1195 sq ft). The latest certificate (March 2020) returns an A (score 98), the top energy band on the EPC scale. Main heating runs on electricity: electricity, unspecified tariff. The property has underfloor heating on record, all of which lower running costs and tend to lift resale appeal.
2 planning records sit against the property, 1 approved, 0 refused, 1 pending. Past consents include an extension, meaningful when judging how the property has evolved. An active application for an extension is awaiting a decision. Today's modelled estimate of £525,000 is 43.8% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£305/sq ft) was about 20.7% below the postcode norm. Most recent transfer: March 2020 at £365,000.
What this property has
Inside
- Bedrooms3
- Bathrooms2
- Open-plan layoutYes
Building
- Underfloor heatingYes
- RefurbishedYes
Energy performance
EPC Rating
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Planning history
An application for a single-storey side extension is currently awaiting a decision.
2 applications on record at 21 Great House Farm, Michaelston Road, St Fagans, Cardiff, CF5 6FL
1 live now- Aug 2020ExtensionFullOutcome in report
Extension: Single storey · Rear of property
SINGLE STOREY REAR EXTENSION
- Documents
- 19 docs on file
- Reference
- 20/00972/DCH
- More recent applications — locked
- ExtensionMay 2025Decision
Unlock 21 Great House Farm, Michaelston Road, St Fagans, Cardiff, CF5 6FL'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- Every decision — granted, refused or withdrawn (1 on record)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 2 applications on this property in full, plus 1 notable nearby
- The 26 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£525,000
Modelled from EPC, postcode comparables.
£365,000
Recorded with HM Land Registry.
Sales timeline
25 March 2020Most recent
£365,000
Median price across the last 5 sales in CF5 6FL: £474,000 (2025–2022).
Nearby sales in CF5 6FL
8 Great House Farm, Michaelston Road, St Fagans, Cardiff, CF5 6FL
Sold Jun 2025
£196,0006 Great House Farm, Michaelston Road, St Fagans, Cardiff, CF5 6FL
Sold Feb 2024
£260,00014 Great House Farm, Michaelston Road, St Fagans, Cardiff, CF5 6FL
Sold Nov 2022
£474,00015 Great House Farm, Michaelston Road, St Fagans, Cardiff, CF5 6FL
Sold Oct 2022
£475,000Great House Farm, The Barn, Michaelston Road, St Fagans, Cardiff, CF5 6FL
Sold Sept 2022
£725,000
Versus other Michaelston Road homes
Price per m² for 21 Great House Farm lags the street by a wide margin.
Price per m²
£3,288
Street avg £4,040
Floor Area
111 m²
Street avg 111 m²
CO₂ Emissions
-0.1 t/year
Street avg -0.4 t/year
Years Held
6 years
Street avg 5 years
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Deepwood Close — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







