Model valuation£417,0008 Busby Close
Local market context
21 Caernarvon Way, Rumney, Cardiff, CF3 1RW
Estimated value
£198,000
- Since the 1996 sale (£43,000)+360%
- Against CF3 1RW's recent median (£177,000)+12%
Newest record on this page: January 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.
Property type
Semi-detached
Habitable rooms
5
From EPC
Floor area
88 m²
947 sq ft
Energy rating
E
Score 42
Council tax
Band C
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
£198,000
- Against its 1996 sale (£43,000)+360%
- Against CF3 1RW's recent median (£177,000)+12%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 21 Caernarvon Way is modelled from its 88 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF3 1RW. 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
88 m² from the EPC lodged in April 2015
Sales of this home
1 sale recorded, the latest in 1996
Recent sales in CF3 1RW
5 sales, median £177,000 (2026–2022)
This page or the full report?
| Data | This page | Full report |
|---|---|---|
| Sales | Latest sale shown: January 2026 | Latest available records, read when you order |
| Valuation | Estimate from the last refresh | Analysed against comparable sales |
| Planning | None on this home | 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.
21 Caernarvon Way's modelled value sits at over four times its earliest registered sale price (1996).
Sales timeline
15 March 1996Most recent
£43,000
Median price across the last 5 sales in CF3 1RW: £177,000 (2026–2022).
Nearby sales in CF3 1RW
23 Caernarvon Way, Rumney, Cardiff, CF3 1RW
Sold Jan 2026
£247,50085 Caernarvon Way, Rumney, Cardiff, CF3 1RW
Sold Apr 2025
£115,00089 Caernarvon Way, Rumney, Cardiff, CF3 1RW
Sold Jun 2023
£177,00039 Caernarvon Way, Rumney, Cardiff, CF3 1RW
Sold Oct 2022
£93,00069 Caernarvon Way, Rumney, Cardiff, CF3 1RW
Sold Jul 2020
£181,500
What this page doesn't show
Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks 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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About 21 Caernarvon Way
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
21 Caernarvon Way is a semi-detached house in Rumney, Cardiff, Cardiff (CF3 1RW). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (April 2015) shows an E (score 42), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 74), a 2-band jump. The latest certificate is from April 2015, so improvements made since then won't be reflected.
Untraded for 30 years, with the last transfer in March 1996. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £198,000 sits 360.5% above the 1996 sale of £43,000. On a £-per-square-foot basis, the last sale (£45/sq ft) was about 56% below the postcode norm.
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Everything you need to know about 21 Caernarvon Way
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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.
21 Caernarvon Way sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 07 Apr 2025
Current Certificate
Apr 2015EPC Rating
A
B
C
D
E
E42
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Poor
Windows
Average
CO2 Emissions
6.6 t/year
Occupancy
Owner Occupied
Certificate validity
Expired on 7 April 2025
Planning history
Applications and permits filed against 21 Caernarvon Way, Rumney, Cardiff, CF3 1RW, sourced from the PlanIt planning register.
21 Caernarvon Way has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Versus other Caernarvon Way homes
Four headline reads against 25 similar houses on this street, drawn from the latest EPC and Land Registry data.
On years held, 21 Caernarvon Way stands well clear of the street.
Price per m²
£489
Street avg £1,231
Floor Area
88 m²
Street avg 95 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
6.6 t/year
Street avg 3.6 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
0.1 km
Trowbridge Road — bus stop.
Nearest stops
- Trowbridge RoadBus stop82m
- Mullins AvenueBus stop132m
- Trowbridge RoadBus stop136m
- Brynbala WayBus stop159m
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.
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Late 20th centurySemi-Detached HouseEPC E
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Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
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Start your researchHow to read this page
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 21 Caernarvon Way is modelled from its 88 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF3 1RW. 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. 1 sale is recorded for 21 Caernarvon Way. 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 21 Caernarvon Way was lodged in April 2015 at band E and expired in April 2025, so a new one is needed to sell or let. 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 21 Caernarvon Way. 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 1RW.
- Council tax band
- 21 Caernarvon Way 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.
Common questions
The questions buyers, sellers and homeowners most often ask about 21 Caernarvon Way, Rumney, Cardiff, CF3 1RW. Each answer is also embedded as structured data for search engines.
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- Every home in CF3 1RWSold prices, values and energy ratings for the postcode
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