21 Ocean Buildings, Bute Crescent, Cardiff, CF10 5AY
About 21 Ocean Buildings
21 Ocean Buildings is a two-bedroom mid-terrace house in Cardiff (CF10 5AY). It has a recorded floor area of 103 m² (around 1109 sq ft), construction records dating it to 1996-2002 and council tax band F. The latest certificate (August 2020) shows a C (score 73). When first surveyed in July 2010 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good and lighting went from Average to Very Good; while window efficiency dropped from Good to Average. Main heating runs on electricity. Other recorded features include notable views. Period features are noted in the property record.
At 103 m² the property is well over the postcode median (78 m² across 27 EPCs), placing it in the larger end of the local stock. Across 2017–2020, sale prices on this property compounded at -0.5% per year. Today's modelled estimate of £230,000 is 10.3% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£188/sq ft) was about 20.4% below the postcode norm. Most recent transfer: December 2020 at £208,500.
What this property has
Inside
- Bedrooms2
- Bathrooms2
- Open-plan layoutYes
- EnsuiteYes
Outside
- ParkingYes
- Notable viewsYes
Building
- Central heatingYes
- Period featuresYes
Energy performance
EPC Rating
Certificate validity
Valid until 25 August 2030
Property Improvements
Changes detected from historical EPC data
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
21 Ocean Buildings has no planning applications on record.
But the area is active
5 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£230,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.5% per year over 3 years.
£208,500
Growth on file: -0.5% per year over 3 years.
Sales timeline
18 December 2020Most recent
£208,500
-1.7%over 3 years24 August 2017
£212,000
Median price across the last 5 sales in CF10 5AY: £195,000 (2026–2023).
Nearby sales in CF10 5AY
29 Ocean Buildings, Bute Crescent, Cardiff, CF10 5AY
Sold May 2026
£193,00017 Ocean Buildings, Bute Crescent, Cardiff, CF10 5AY
Sold May 2026
£195,0008 Ocean Buildings, Bute Crescent, Cardiff, CF10 5AY
Sold Jul 2023
£210,00014 Ocean Buildings, Bute Crescent, Cardiff, CF10 5AY
Sold May 2023
£218,00013 Ocean Buildings, Bute Crescent, Cardiff, CF10 5AY
Sold Apr 2023
£133,600
Versus other Bute Crescent homes
Floor Area for 21 Ocean Buildings runs comfortably ahead of the street norm.
Price per m²
£2,024
Street avg £2,403
Floor Area
103 m²
Street avg 76 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
4.4 t/year
Street avg 2.4 t/year
Similar properties nearby
1 Ezel Court, Heol Glan Rheidol
CF10 5NS
1 Empire House, Mount Stuart Square
CF10 5LR
1 Carlotta Way
CF10 5FY
1 Bute Esplanade
CF10 5BD
1 Judkin Court, Heol Tredwen
CF10 5AU
1 Adelaide Street
CF10 5BS
1 Clarence Court, Pomeroy Street
CF10 5GT
1 Clarence Mews, Clarence Embankment
CF10 5GF
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
485/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Mermaid Quay — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







