What type of property is 17 Heol Y Twyn, SA4 9EU?

17 Heol Y Twyn, SA4 9EU is a semi-detached house.

What did 17 Heol Y Twyn, SA4 9EU sell for?

17 Heol Y Twyn, SA4 9EU last sold for £159,000 in July 2022, around 4 years ago. Before that, it sold for £100,000 in January 2008, so prices have been rising over 14 years on record. Source: HM Land Registry.

What is the price history for 17 Heol Y Twyn, SA4 9EU?

Across 2 sales between January 2008 and July 2022, 17 Heol Y Twyn, SA4 9EU rose from £100,000 to £159,000, a change of £59,000. That works out to roughly +3.3% per year compounded over 14 years. Source: HM Land Registry.

How energy efficient is 17 Heol Y Twyn, SA4 9EU?

The current EPC rating for 17 Heol Y Twyn, SA4 9EU is C with a score of 70 out of 100, lodged in March 2022. The assessor estimates the property could reach a B. Source: EPC Register.

What is the floor area of 17 Heol Y Twyn, SA4 9EU?

17 Heol Y Twyn, SA4 9EU has a recorded floor area of 67 m² (721 sq ft). Source: EPC Register.

How is 17 Heol Y Twyn, SA4 9EU heated?

The latest EPC at 17 Heol Y Twyn, SA4 9EU records mains gas as the main heating fuel. Source: EPC Register.

What council tax band is 17 Heol Y Twyn, SA4 9EU?

17 Heol Y Twyn, SA4 9EU is in council tax band C.

Where is 17 Heol Y Twyn, SA4 9EU located?

17 Heol Y Twyn, SA4 9EU sits in Pontlliw, Swansea, Swansea. It falls within the SA4 postcode district.

How safe is the area around 17 Heol Y Twyn, SA4 9EU?

Police records around 17 Heol Y Twyn, SA4 9EU show an average of 160 reported crimes per month over the last 14 months. Violent crime makes up roughly 44% of reports, the most common category. The overall trend is falling (16% versus the prior period). Source: Police UK.

What is the nearest station to 17 Heol Y Twyn, SA4 9EU?

The closest bus stop to 17 Heol Y Twyn, SA4 9EU is Post Office, 95m away. In total there are 30 bus stops within the surrounding area.

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17 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU

Estimated value

£181,000

Since the 2022 sale (£159,000)+14%
Against SA4 9EU's recent median (£164,000)+10%

Newest record on this page: January 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation

Property type

Semi-detached

Habitable rooms

From EPC

Floor area

67 m²

721 sq ft

Energy rating

Score 70

Council tax

Band C

Tenure

Private Rental

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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

£181,000

Against its 2022 sale (£159,000)+14%
Against SA4 9EU's recent median (£164,000)+10%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 17 Heol Y Twyn is modelled from its 67 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in SA4 9EU. 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
67 m² from the EPC lodged in March 2022
Sales of this home
2 sales recorded, the latest in 2022
Recent sales in SA4 9EU
5 sales, median £164,000 (2026–2024)

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

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

28 July 2022Most recent
£159,000
+59.0%over 14 years
28 January 2008
£100,000

Median price across the last 5 sales in SA4 9EU: £164,000 (2026–2024).

Nearby sales in SA4 9EU

Risks

What this page doesn't show

1 potential issue has already been flagged for 17 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU. The detail, evidence and what to ask about it are in the Risks 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 17 Heol Y Twyn

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

17 Heol Y Twyn is a semi-detached house in Pontlliw, Swansea, Swansea (SA4 9EU). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (March 2022) shows a C (score 70). The recommended improvements would push it to B (score 85).

Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). Across 2008–2022, sale prices on this property compounded at 3.3% per year. Today's modelled estimate of £181,000 is 13.8% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£220/sq ft) was about 70.9% above the typical sold price in the postcode. Most recent transfer: July 2022 at £159,000. 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 17 Heol Y Twyn

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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

Mar 2022

EPC Rating

C70

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Average

CO2 Emissions

2.3 t/year

Occupancy

Rented

Certificate validity

Valid until 30 March 2032

5 years remaining

Planning

Planning history

Applications and permits filed against 17 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU, sourced from the PlanIt planning register.

17 Heol Y Twyn has no planning applications on record.

But the area is active

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

On the street

Versus other Heol Y Twyn homes

Four headline reads against 28 similar houses on this street, drawn from the latest EPC and Land Registry data.

CO₂ Emissions for 17 Heol Y Twyn runs comfortably ahead of the street norm.

Price per m²

£2,373

Street avg £1,731

Strongly above

Floor Area

67 m²

Street avg 71 m²

Strongly below

Habitable Rooms

5 rooms

Street avg 5 rooms

Above

CO₂ Emissions

2.3 t/year

Street avg 3.3 t/year

Strongly above

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

160/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Post Office — bus stop.

Nearest stops

Post OfficeBus stop95m
Y LlanerchBus stop312m
Oaklands RoadBus stop672m
Glamorgan ArmsBus stop984m

Most reported crime locally

Violence & Sexual Offences974 reports44%
Anti-social Behaviour318 reports14%
Public Order242 reports11%
Criminal Damage & Arson201 reports9%

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 C

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Comparables

Similar properties nearby

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

£174k

1 Bron Afon, Tircoed Forest Village, Penllergaer

SA4 9QY

£173k

1 Bryn Bach, Tircoed Forest Village, Penllergaer

SA4 9RX

2 bed

£193k

1 Clordir Road, Pontlliw

SA4 9EY

£168k

1 Dillwyn Road, Penllergaer

SA4 9BT

£199k

1 Clos Glanlliw, Pontlliw

SA4 9DW

£209k

1 Clos Llarwydden, Penllergaer

SA4 9ZP

3 bed

£210k

1 Dryslwyn Close, Penllergaer

SA4 9AW

£211k

1 Cherry Crescent, Penllergaer

SA4 9FF

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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 17 Heol Y Twyn is modelled from its 67 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in SA4 9EU. 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. 2 sales are recorded for 17 Heol Y Twyn. 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 17 Heol Y Twyn was lodged in March 2022 at band C and is valid until March 2032. 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 17 Heol Y Twyn. 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 14 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from SA4 9EU.
Council tax band: 17 Heol Y Twyn 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.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 17 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU. Each answer is also embedded as structured data for search engines.

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