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

Estimated value

£177,000

  • Since the 2024 sale (£165,001)+7%
  • Against SA4 9EU's recent median (£142,500)+24%

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
Bedrooms
2
Bathroom
1
Floor area
68 m²
732 sq ft
Energy rating
C
Score 72
Council tax
Band C
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

£177,000

  • Against its 2024 sale (£165,001)+7%
  • Against SA4 9EU's recent median (£142,500)+24%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 18 Heol Y Twyn is modelled from its 68 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

    68 m² from the EPC lodged in June 2024

  • Sales of this home

    2 sales recorded, the latest in 2024

  • Recent sales in SA4 9EU

    5 sales, median £142,500 (2026–2022)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: January 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

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

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

Sales timeline

  1. 6 December 2024Most recent

    £165,001

    +83.3%over 13 years

  2. 31 May 2011

    £90,000

Median price across the last 5 sales in SA4 9EU: £142,500 (2026–2022).

Risks

What this page doesn't show

1 potential issue has already been flagged for 18 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

One time fee only - money back guarantee

Overview

About 18 Heol Y Twyn

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

18 Heol Y Twyn is a two-bedroom 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 (June 2024) shows a C (score 72). The rating has held steady at C across 2 certificates since April 2011. Between certificates, window efficiency went from Average to Good; while wall efficiency dropped from Good to Average. The recommended improvements would push it to B (score 87).

Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). Across 2011–2024, sale prices on this property compounded at 4.6% per year. On a £-per-square-foot basis, the last sale (£225/sq ft) was about 74% above the typical sold price in the postcode. Last sale on file: £165,001 in December 2024.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms2
  • Bathrooms1
  • Dining roomYes

Outside

  • Private gardenFront and rear
Before you decide

Everything you need to know about 18 Heol Y Twyn

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

Larger development activity nearby

Pick your report · from £14.99

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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.
Current Certificate(1 of 2)
Jun 2024

EPC Rating

A
B
C
C72
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
2.1 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 29 June 2034

7 years remaining

Property Improvements

Changes detected from historical EPC data

Jun 2024from Apr 2011
Windows
AverageGood

Window efficiency improved

Planning

Planning history

Applications and permits filed against 18 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU, sourced from the PlanIt planning register.

18 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.

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 price per m², 18 Heol Y Twyn stands well clear of the street.

Price per m²

£2,426

Street avg £1,729

Strongly above

Floor Area

68 m²

Street avg 71 m²

Below

Habitable Rooms

4 rooms

Street avg 5 rooms

Strongly below

CO₂ Emissions

2.1 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.

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Late 20th centurySemi-Detached HouseEPC C

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

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£173k

1 Bryn Bach, Tircoed Forest Village, Penllergaer

SA4 9RX

2 bed
£209k

1 Clos Llarwydden, Penllergaer

SA4 9ZP

3 bed
£238k

1 Clos Ger Y Maes, Tircoed Forest Village, Penllergaer

SA4 9JG

3 bed1 bath
£256k

1 Druidstone Way, Penllergaer

SA4 9AJ

3 bed1 bath
£174k

1 Bron Afon, Tircoed Forest Village, Penllergaer

SA4 9QY

£305k

1 Clos Ger Y Bryn, Tircoed Forest Village, Penllergaer

SA4 9JL

4 bed1 bath
£168k

1 Dillwyn Road, Penllergaer

SA4 9BT

£193k

1 Clordir Road, Pontlliw

SA4 9EY

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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 18 Heol Y Twyn is modelled from its 68 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 18 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 18 Heol Y Twyn was lodged in June 2024 at band C and is valid until June 2034. 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 18 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
18 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 18 Heol Y Twyn, Pontlliw, Swansea, SA4 9EU. Each answer is also embedded as structured data for search engines.

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