What kind of home is 20 Clos Ty Mawr, SA4 9DA?

20 Clos Ty Mawr, SA4 9DA is a detached house.

What did 20 Clos Ty Mawr, SA4 9DA sell for?

20 Clos Ty Mawr, SA4 9DA last sold for £380,000 in April 2026. Source: HM Land Registry.

What is the EPC rating for 20 Clos Ty Mawr, SA4 9DA?

The current EPC rating for 20 Clos Ty Mawr, SA4 9DA is E with a score of 54 out of 100, lodged in September 2025. The assessor estimates the property could reach a C. Source: EPC Register.

How big is 20 Clos Ty Mawr, SA4 9DA?

20 Clos Ty Mawr, SA4 9DA has a recorded floor area of 114 m² (1,227 sq ft). That makes it about 33% smaller than the median EPC-recorded property in SA4 9DA. Source: EPC Register.

What heating system does 20 Clos Ty Mawr, SA4 9DA use?

The latest EPC at 20 Clos Ty Mawr, SA4 9DA records mains gas as the main heating fuel. Source: EPC Register.

What is the council tax band for 20 Clos Ty Mawr, SA4 9DA?

20 Clos Ty Mawr, SA4 9DA is in council tax band F. That sits towards the upper end of the band ladder, typically reflecting larger or higher-value homes.

Which area is 20 Clos Ty Mawr, SA4 9DA in?

20 Clos Ty Mawr, SA4 9DA sits in Penllergaer, Swansea, Swansea. It falls within the SA4 postcode district.

What is crime like near 20 Clos Ty Mawr, SA4 9DA?

Police records around 20 Clos Ty Mawr, SA4 9DA 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 20 Clos Ty Mawr, SA4 9DA?

The closest bus stop to 20 Clos Ty Mawr, SA4 9DA is Parc Penllergaer, 68m away. In total there are 30 bus stops within the surrounding area.

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20 Clos Ty Mawr, Penllergaer, Swansea, SA4 9DA

Estimated value

£387,000

Since the 2026 sale (£380,000)+2%
Against SA4 9DA's recent median (£350,000)+11%

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

Learn about this valuation

Property type

Detached

Habitable rooms

From EPC

Floor area

114 m²

1227 sq ft

Energy rating

Score 54

Council tax

Band F

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

£387,000

Against its 2026 sale (£380,000)+2%
Against SA4 9DA's recent median (£350,000)+11%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 20 Clos Ty Mawr is modelled from its 114 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SA4 9DA. 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
114 m² from the EPC lodged in September 2025
Sales of this home
1 sale recorded, the latest in 2026
Recent sales in SA4 9DA
5 sales, median £350,000 (2023–2014)

This page or the full report?

Data	This page	Full report
Sales	Latest sale shown: April 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.

20 Clos Ty Mawr valuation sits well clear of the typical sold price in this postcode.

Sales timeline

21 April 2026Most recent
£380,000

Median price across the last 5 sales in SA4 9DA: £350,000 (2023–2014).

Nearby sales in SA4 9DA

Risks

What this page doesn't show

1 potential issue has already been flagged for 20 Clos Ty Mawr, Penllergaer, Swansea, SA4 9DA. 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 20 Clos Ty Mawr

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

20 Clos Ty Mawr is a detached house in Penllergaer, Swansea, Swansea (SA4 9DA). It has a recorded floor area of 114 m² (around 1227 sq ft), construction records dating it to 1983-1990 and council tax band F. The latest certificate (September 2025) shows an E (score 54), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 71), a 2-band jump.

A recent sale: £380,000 in April 2026. At 114 m² it's 23% smaller than the typical home in the postcode (148 m² median across 8 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). On a £-per-square-foot basis, the last sale (£310/sq ft) was about 86% above the typical sold price in the postcode.

Before you decide

Everything you need to know about 20 Clos Ty Mawr

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

Larger 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.

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

Current Certificate

Sept 2025

EPC Rating

E54

Main Heating

Gas

Main Fuel

Gas

Hot Water

Average

Windows

Average

CO2 Emissions

5.3 t/year

Occupancy

Owner Occupied

Certificate validity

Valid until 7 September 2035

8 years remaining

Planning

Planning history

Applications and permits filed against 20 Clos Ty Mawr, Penllergaer, Swansea, SA4 9DA, sourced from the PlanIt planning register.

20 Clos Ty Mawr 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 Clos Ty Mawr homes

Four headline reads against 8 similar houses on this street, drawn from the latest EPC and Land Registry data.

20 Clos Ty Mawr outperforms the street on price per m² by a wide margin.

Price per m²

£3,333

Street avg £1,893

Strongly above

Floor Area

114 m²

Street avg 156 m²

Strongly below

Habitable Rooms

7 rooms

Street avg 7 rooms

On par

CO₂ Emissions

5.3 t/year

Street avg 5.7 t/year

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

Parc Penllergaer — bus stop.

Nearest stops

Parc PenllergaerBus stop68m
Keepers CloseBus stop203m
Clos CilfwnwrBus stop452m
St David's ChurchBus stop497m

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.

Get a survey for this property

Level 3 Building Survey

Late 20th centuryDetached HouseEPC EExtended multiple times (2+ extensions)

Because the property has been extended more than once, we believe a Level 3 building survey should be considered.

From £955 · 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.

£384k

1 Clos Cerdinen, Tircoed Forest Village, Penllergaer

SA4 9QL

4 bed3 bath

£392k

1 Clos Penbwl, Penllergaer

SA4 9HP

4 bed3 bath

£394k

1 Bryn Road, Pontlliw

SA4 9ED

4 bed

£375k

1 Clos Penderri, Penllergaer

SA4 9BZ

5 bed2 bath

£360k

1 Clos Bryn Dafydd, Penllergaer

SA4 9BX

£484k

1 Cwrt Ithol, Penllergaer

SA4 9FN

£305k

1 Clos Ger Y Bryn, Tircoed Forest Village, Penllergaer

SA4 9JL

4 bed1 bath

£300k

1 Clos Cilfwnwr, Penllergaer

SA4 9BU

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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 20 Clos Ty Mawr is modelled from its 114 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SA4 9DA. 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 20 Clos Ty Mawr. 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 20 Clos Ty Mawr was lodged in September 2025 at band E and is valid until September 2035. 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 20 Clos Ty Mawr. 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 9DA.
Council tax band: 20 Clos Ty Mawr is in council tax band F. 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 20 Clos Ty Mawr, Penllergaer, Swansea, SA4 9DA. Each answer is also embedded as structured data for search engines.

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