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12 Clos Glanlliw, Pontlliw, Swansea, SA4 9EH

Property type
Semi-detached
Habitable rooms
6
From EPC
Floor area
165 m²
1776 sq ft
Energy rating
C
Score 71
Council tax
Band C
Tenure
Owner Occupied
Overview

About 12 Clos Glanlliw

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

12 Clos Glanlliw is a semi-detached house in Pontlliw, Swansea, Swansea (SA4 9EH). It has a recorded floor area of 165 m² (around 1776 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (July 2025) shows a C (score 71). When first surveyed in July 2013 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Average and hot-water efficiency went from Average to Good; while window efficiency dropped from Average to Poor and lighting dropped from Poor to Very Poor. The recommended improvements would push it to B (score 82).

At 165 m² the property is well over the postcode median (118 m² across 15 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £333,000 sits 76.2% above the 2019 sale of £189,000. On a £-per-square-foot basis, the last sale (£106/sq ft) was about 17.1% below the postcode norm. Most recent transfer: May 2019 at £189,000.

Before you decide

Everything you need to know about 12 Clos Glanlliw

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

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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)
Jul 2025

EPC Rating

A
B
C
C71
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
4.2 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Jul 2025from Jul 2013
EPC improved fromE42toC71
Hot Water
Main (No Stat)Main System

Hot water system upgraded

Roof Insulation
PartialInsulated

Roof insulation improved

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Late 20th centurySemi-Detached HouseEPC CExtended 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 12 Clos Glanlliw, Pontlliw, Swansea, SA4 9EH, sourced from the PlanIt planning register.

12 Clos Glanlliw 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.

12 Clos Glanlliw valuation sits well clear of the typical sold price in this postcode.

Current estimate

£333,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2019)

£189,000

Recorded with HM Land Registry.

Sales timeline

  1. 9 May 2019Most recent

    £189,000

Median price across the last 5 sales in SA4 9EH: £230,000 (2023–2021).

On the street

Versus other Clos Glanlliw homes

Four headline reads against 15 similar houses on this street, drawn from the latest EPC and Land Registry data.

Floor Area for 12 Clos Glanlliw runs comfortably ahead of the street norm.

Price per m²

£1,145

Street avg £1,755

Strongly below

Floor Area

165 m²

Street avg 120 m²

Strongly above

Habitable Rooms

6 rooms

Street avg 5 rooms

Above

CO₂ Emissions

4.2 t/year

Street avg 4.3 t/year

On par
Before you decide

Everything you need to know about 12 Clos Glanlliw

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.
£365k

1 Clos Bryn Dafydd, Penllergaer

SA4 9BX

£302k

1 Clos Ger Y Bryn, Tircoed Forest Village, Penllergaer

SA4 9JL

4 bed1 bath
£368k

1 Clos Penderri, Penllergaer

SA4 9BZ

5 bed2 bath
£300k

1 Clos Cilfwnwr, Penllergaer

SA4 9BU

£379k

1 Clos Cerdinen, Tircoed Forest Village, Penllergaer

SA4 9QL

4 bed3 bath
£383k

1 Clos Penbwl, Penllergaer

SA4 9HP

4 bed3 bath
£289k

1 Cilgant Meredith, Penllergaer

SA4 9HS

£403k

1 Bryn Road, Pontlliw

SA4 9ED

4 bed
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

0.2 km

Oaklands Road — 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 12 Clos Glanlliw, Pontlliw, Swansea, SA4 9EH. Each answer is also embedded as structured data for search engines.