20 Sealock Warehouse, Burt Street, Cardiff, CF10 5GG
About 20 Sealock Warehouse
20 Sealock Warehouse is a one-bedroom mid-terrace house in Cardiff (CF10 5GG). It has a recorded floor area of 31 m² (around 337 sq ft), construction records dating it to 2003-2006 and council tax band D. At 31 m² this is the 4th smallest of 21 units on EPC record in the building, where floor areas span 30–47 m². The building's EPC ratings span E to C across 21 units on file. The latest certificate (April 2010) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 85), a 2-band jump. Main heating runs on electricity. The latest certificate is from April 2010, so improvements made since then won't be reflected.
It lags the bulk of the postcode on energy efficiency (less efficient than 70% of similar EPCs).
What this property has
Inside
- Bedrooms1
- Bathrooms1
Outside
- ParkingYes
Energy performance
20 Sealock Warehouse's carbon output is low for the local stock.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 06 Apr 2020
EPC Rating
Certificate validity
Expired on 6 April 2020
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 £820 · Includes VAT
Planning history
20 Sealock Warehouse 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
20 Sealock Warehouse has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£137,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in CF10 5GG: £99,000 (2020–2018).
Nearby sales in CF10 5GG
5 Sealock Warehouse, Burt Street, Cardiff, CF10 5GG
Sold Feb 2020
£88,0008 Sealock Warehouse, Burt Street, Cardiff, CF10 5GG
Sold Apr 2019
£99,00019 Sealock Warehouse, Burt Street, Cardiff, CF10 5GG
Sold Dec 2018
£115,0004 Sealock Warehouse, Burt Street, Cardiff, CF10 5GG
Sold Sept 2018
£97,00021 Sealock Warehouse, Burt Street, Cardiff, CF10 5GG
Sold Apr 2018
£116,500
Versus other Burt Street homes
20 Sealock Warehouse is notably below the street on floor area.
EPC Rating
68 (D)
Street avg 68 (D)
Floor Area
31 m²
Street avg 36 m²
CO₂ Emissions
1.3 t/year
Street avg 1.6 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
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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
Pomeroy Street — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







