What kind of home is 12 Sebastopol Street, SA1 8BN?

12 Sebastopol Street, SA1 8BN is a mid-terrace house.

What was the last sold price for 12 Sebastopol Street, SA1 8BN?

12 Sebastopol Street, SA1 8BN last sold for £130,000 in September 2022, around 4 years ago. Source: HM Land Registry.

What energy rating does 12 Sebastopol Street, SA1 8BN have?

The current EPC rating for 12 Sebastopol Street, SA1 8BN is F with a score of 33 out of 100, lodged in January 2016. It has dropped from a D recorded in July 2014 (2 bands). The assessor estimates the property could reach a D. Source: EPC Register.

How big is 12 Sebastopol Street, SA1 8BN?

12 Sebastopol Street, SA1 8BN has a recorded floor area of 130 m² (1,399 sq ft). That makes it about 65% larger than the median EPC-recorded property in SA1 8BN. Source: EPC Register.

What heating system does 12 Sebastopol Street, SA1 8BN use?

The latest EPC at 12 Sebastopol Street, SA1 8BN records mains gas as the main heating fuel. Source: EPC Register.

What is the council tax band for 12 Sebastopol Street, SA1 8BN?

12 Sebastopol Street, SA1 8BN is in council tax band B. That sits at the lower end of the A-H ladder, typically reflecting smaller floor areas or lower 1991 valuations.

Which area is 12 Sebastopol Street, SA1 8BN in?

12 Sebastopol Street, SA1 8BN sits in St. Thomas, Swansea, Swansea. It falls within the SA1 postcode district.

How safe is the area around 12 Sebastopol Street, SA1 8BN?

Police records around 12 Sebastopol Street, SA1 8BN show an average of 580 reported crimes per month over the last 16 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 12 Sebastopol Street, SA1 8BN?

The closest bus stop to 12 Sebastopol Street, SA1 8BN is St Thomas Church, 80m away. In total there are 30 bus stops within the surrounding area.

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12 Sebastopol Street, St Thomas, Swansea, SA1 8BN

Estimated value

£155,000

Since the 2022 sale (£130,000)+19%
Against SA1 8BN's recent median (£125,000)+24%

Newest record on this page: September 2022. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation

Property type

Mid terrace

Habitable rooms

From EPC

Floor area

130 m²

1399 sq ft

Energy rating

Score 33

Council tax

Band B

Tenure

Owner Occupied

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Valuation

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

£155,000

Against its 2022 sale (£130,000)+19%
Against SA1 8BN's recent median (£125,000)+24%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 12 Sebastopol Street is modelled from its 130 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SA1 8BN. 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
130 m² from the EPC lodged in January 2016
Sales of this home
1 sale recorded, the latest in 2022
Recent sales in SA1 8BN
5 sales, median £125,000 (2022–2018)

This page or the full report?

Data	This page	Full report
Sales	Latest sale shown: September 2022	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

Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

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

Sales timeline

7 September 2022Most recent
£130,000

Median price across the last 5 sales in SA1 8BN: £125,000 (2022–2018).

Nearby sales in SA1 8BN

Risks

What this page doesn't show

2 potential issues have already been flagged for 12 Sebastopol Street, St Thomas, Swansea, SA1 8BN. The detail, evidence and what to ask about it are in the Risks Report.

Signs of HMO activity in the areaIn report
Larger development activity nearbyIn 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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Overview

About 12 Sebastopol Street

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

12 Sebastopol Street is a mid-terrace house in St. Thomas, Swansea, Swansea (SA1 8BN). It has a recorded floor area of 130 m² (around 1399 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (January 2016) shows an F (score 33), near the bottom of the EPC scale. Earlier certificates rated it D (July 2014); the latest reading is 2 bands lower. Between certificates, window efficiency dropped from Good to Average. The recommended improvements would lift it to D (score 55), a 2-band jump. The latest certificate is from January 2016, so improvements made since then won't be reflected.

At 130 m² the property is well over the postcode median (79 m² across 23 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £155,000 is 19.2% above the 2022 sale price. Most recent transfer: September 2022 at £130,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

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Everything you need to know about 12 Sebastopol Street

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Signs of HMO activity in the areaLarger development activity nearby

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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.

12 Sebastopol Street 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 11 Jan 2026

Current Certificate(1 of 2)

Jan 2016

EPC Rating

F33

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Average

CO2 Emissions

10.0 t/year

Occupancy

Owner Occupied

Certificate validity

Expired on 11 January 2026

New assessment needed to sell or let

Planning

Planning history

Applications and permits filed against 12 Sebastopol Street, St Thomas, Swansea, SA1 8BN, sourced from the PlanIt planning register.

12 Sebastopol Street has no planning applications on record.

But the area is active

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

On the street

Versus other Sebastopol Street homes

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

12 Sebastopol Street is notably below the street on years held.

Price per m²

£1,000

Street avg £1,149

Below

Floor Area

130 m²

Street avg 86 m²

Strongly above

Habitable Rooms

9 rooms

Street avg 5 rooms

Strongly above

CO₂ Emissions

10.0 t/year

Street avg 4.1 t/year

Strongly below

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Swansea district page.

Full Swansea report

Crime

580/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

St Thomas Church — bus stop.

Nearest stops

St Thomas ChurchBus stop80m
St Thomas' ChurchBus stop92m
Cape HornerBus stop176m
St Thomas Community CentreBus stop205m

Most reported crime locally

Violence & Sexual Offences3,276 reports35%
Anti-social Behaviour1,210 reports13%
Shoplifting1,135 reports12%
Public Order981 reports11%

Go deeper on the local area

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

Get a survey for this property

Level 3 Building Survey

Victorian-eraMid-Terrace HouseEPC FPre-1919 buildExtended multiple times (2+ extensions)Solid (non-cavity) walls

Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £820 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.

£153k

1 Llys Hafan, Lamberts Road

SA1 8QH

£152k

1 Bay View, St Thomas

SA1 8BB

£152k

1 Beaumont Crescent, St Thomas

SA1 8DW

£159k

1 Elba Crescent, Crymlyn Burrows

SA1 8QQ

£147k

1 Balaclava Street, St Thomas

SA1 8BS

4 bed1 bath

£173k

1 Glenroy Avenue, St Thomas

SA1 8DU

£174k

1 Danygraig Road, Port Tennant

SA1 8LY

1 bed

£174k

1 Kilvey Terrace, St Thomas

SA1 8BA

2 bed

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.

Valuation method in detail

How the estimate is made: The estimate for 12 Sebastopol Street is modelled from its 130 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SA1 8BN. 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 12 Sebastopol Street. 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 12 Sebastopol Street was lodged in January 2016 at band F and expired in January 2026, so a new one is needed to sell or let. 2 certificates are on record, which shows how the home has changed.
Planning records: Planning applications are collected from local authority registers through PlanIt. None is matched to 12 Sebastopol Street. 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 16 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from SA1 8BN.
Council tax band: 12 Sebastopol Street is in council tax band B. 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.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 12 Sebastopol Street, St Thomas, Swansea, SA1 8BN. Each answer is also embedded as structured data for search engines.

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