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

Property type
Semi-detached
Habitable rooms
5
From EPC
Floor area
68 m²
732 sq ft
Energy rating
E
Score 51
Council tax
Band C
Tenure
Private Rental
Overview

About 21 Heol Y Twyn

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

21 Heol Y Twyn is a semi-detached house in Pontlliw, Swansea, Swansea (SA4 9EU). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (October 2021) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 87), a 3-band jump.

A recent sale: £128,000 in April 2025. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). Today's modelled estimate of £180,000 is 40.6% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£175/sq ft) was about 35.6% above the typical sold price in the postcode.

Before you decide

Everything you need to know about 21 Heol Y Twyn

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

Larger development activity nearby

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Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

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

Recommended upgrades on file would lift this property by multiple EPC bands.

EPC Rating

A
B
C
D
E
E51
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Very Poor
Windows
Average
CO2 Emissions
4.6 t/year
Occupancy
Rented
SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Late 20th centurySemi-Detached HouseEPC E

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

From £495 · Includes VAT

Planning

Planning history

Applications and permits filed against 21 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU, sourced from the PlanIt planning register.

21 Heol Y Twyn has no planning applications on record.

1

But the area is active

1 notable application 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.

21 Heol Y Twyn valuation sits well clear of the typical sold price in this postcode.

Current estimate

£180,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2025)

£128,000

Recorded with HM Land Registry.

Sales timeline

  1. 7 April 2025Most recent

    £128,000

Median price across the last 5 sales in SA4 9EU: £145,000 (2024–2022).

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.

On years held, 21 Heol Y Twyn runs well behind the street norm.

Price per m²

£1,882

Street avg £1,723

Above

Floor Area

68 m²

Street avg 71 m²

Below

Habitable Rooms

5 rooms

Street avg 5 rooms

Above

CO₂ Emissions

4.6 t/year

Street avg 3.2 t/year

Strongly below
Before you decide

Everything you need to know about 21 Heol Y Twyn

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

Larger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
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 Dillwyn Road, Penllergaer

SA4 9BT

£173k

1 Bron Afon, Tircoed Forest Village, Penllergaer

SA4 9QY

£173k

1 Bryn Bach, Tircoed Forest Village, Penllergaer

SA4 9RX

2 bed
£197k

1 Clos Glanlliw, Pontlliw

SA4 9DW

£198k

1 Clordir Road, Pontlliw

SA4 9EY

£205k

1 Cherry Crescent, Penllergaer

SA4 9FF

£207k

1 Clos Llarwydden, Penllergaer

SA4 9ZP

3 bed
£215k

1 Dryslwyn Close, Penllergaer

SA4 9AW

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

2/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Post Office — 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 21 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU. Each answer is also embedded as structured data for search engines.