What kind of home is 15 20, Apartment 20, Castle Street, SA1 1JF?

15 20, Apartment 20, Castle Street, SA1 1JF is a detached house.

What was the last sold price for 15 20, Apartment 20, Castle Street, SA1 1JF?

15 20, Apartment 20, Castle Street, SA1 1JF last sold for £295,000 in February 2020, around 6 years ago. Source: HM Land Registry.

What energy rating does 15 20, Apartment 20, Castle Street, SA1 1JF have?

The current EPC rating for 15 20, Apartment 20, Castle Street, SA1 1JF is D with a score of 61 out of 100, lodged in June 2021. It has dropped from a C recorded in June 2021. Source: EPC Register.

How big is 15 20, Apartment 20, Castle Street, SA1 1JF?

15 20, Apartment 20, Castle Street, SA1 1JF has a recorded floor area of 62 m² (667 sq ft). Source: EPC Register.

What heating system does 15 20, Apartment 20, Castle Street, SA1 1JF use?

The latest EPC at 15 20, Apartment 20, Castle Street, SA1 1JF records electricity: electricity, unspecified tariff as the main heating fuel. Source: EPC Register.

Which area is 15 20, Apartment 20, Castle Street, SA1 1JF in?

15 20, Apartment 20, Castle Street, SA1 1JF sits in Swansea. It falls within the SA1 postcode district.

Is 15 20, Apartment 20, Castle Street, SA1 1JF in a safe area?

Police records around 15 20, Apartment 20, Castle Street, SA1 1JF show an average of 3 reported crimes per month over the last 11 months. Violent crime makes up roughly 35% of reports, the most common category. The overall trend is broadly stable. Source: Police UK.

What transport links are near 15 20, Apartment 20, Castle Street, SA1 1JF?

The closest bus stop to 15 20, Apartment 20, Castle Street, SA1 1JF is High Street 1, 94m away. The nearest rail option is Swansea Rail Station, 449m away.

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15 20, Apartment 20, Castle Street, Swansea, SA1 1JF

Property type

Detached

Floor 3

Floor area

62 m²

667 sq ft

Energy rating

Score 61

Overview

About 15 20

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

15 20 is a detached house in Swansea (SA1 1JF). It has a recorded floor area of 62 m² (around 667 sq ft) and construction records dating it to 2021. At 62 m² this is the 10th smallest of 22 units on EPC record in 15 20, where floor areas span 42–86 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (61 versus a best of 72). The latest certificate (June 2021) shows a D (score 61), on the cusp of jumping into the C band. Earlier certificates rated it C (June 2021); the latest reading is one band lower. Main heating runs on electricity: electricity, unspecified tariff.

Today's modelled estimate of £174,000 is 41% below the 2020 sale of £295,000, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. Most recent transfer: February 2020 at £295,000.

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Everything you need to know about 15 20

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Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

Current Certificate(1 of 2)

Jun 2021

EPC Rating

D61

Main Heating

Electric

Main Fuel

Electric

Hot Water

Very Poor

Windows

Very Good

CO2 Emissions

2.5 t/year

Occupancy

—

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21st century3rd Floor FlatEPC D

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Planning

Planning history

Applications and permits filed against 15 20, Apartment 20, Castle Street, Swansea, SA1 1JF, sourced from the PlanIt planning register.

15 20 has no planning applications on record.

But the area is active

7 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

The latest sale landed in the post-pandemic price surge — useful context when reading the figure.

Current estimate

£174,000

Modelled from EPC, postcode comparables.

See how we calculated this

Last sold (2020)

£295,000

Recorded with HM Land Registry.

Sales timeline

25 February 2020Most recent
£295,000

On the street

Versus other Castle Street homes

Three headline reads against 21 similar flats on this street, drawn from the latest EPC and Land Registry data.

15 20 is notably below the street on epc rating.

EPC Rating

61 (D)

Street avg 66 (D)

Strongly below

Floor Area

62 m²

Street avg 59 m²

On par

CO₂ Emissions

2.5 t/year

Street avg 2.2 t/year

Below

Before you decide

Everything you need to know about 15 20

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

The data behind every report

Comparables

Steady year-on-year across the wider district.

Nearest stop

0.1 km

High Street 1 — bus stop.

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 15 20, Apartment 20, Castle Street, Swansea, SA1 1JF. Each answer is also embedded as structured data for search engines.