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

Property type
Detached
Habitable rooms
7
From EPC
Floor area
114 m²
1227 sq ft
Energy rating
E
Score 54
Council tax
Band F
Tenure
Owner Occupied
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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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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.

Current Certificate
Sept 2025

EPC Rating

A
B
C
D
E
E54
F
G
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
SDL Surveying

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

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.

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.

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

Current estimate

£387,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2026)

£380,000

Recorded with HM Land Registry.

Sales timeline

  1. 21 April 2026Most recent

    £380,000

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

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
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

Pick your report · from £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.
£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

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.

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 20 Clos Ty Mawr, Penllergaer, Swansea, SA4 9DA. Each answer is also embedded as structured data for search engines.