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12 Clos Glanlliw, Pontlliw, Swansea, SA4 9EH

Estimated value

£328,000

  • Since the 2025 sale (£300,000)+9%
  • Against SA4 9EH's recent median (£230,000)+43%

Newest record on this page: May 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
Habitable rooms
6
From EPC
Floor area
165 m²
1776 sq ft
Energy rating
C
Score 71
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

£328,000

  • Against its 2025 sale (£300,000)+9%
  • Against SA4 9EH's recent median (£230,000)+43%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 12 Clos Glanlliw is modelled from its 165 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in SA4 9EH. 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

    165 m² from the EPC lodged in July 2025

  • Sales of this home

    2 sales recorded, the latest in 2025

  • Recent sales in SA4 9EH

    5 sales, median £230,000 (2026–2021)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: May 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.

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

Sales timeline

  1. 2 October 2025Most recent

    £300,000

    +58.7%over 6 years

  2. 9 May 2019

    £189,000

Median price across the last 5 sales in SA4 9EH: £230,000 (2026–2021).

Risks

What this page doesn't show

1 potential issue has already been flagged for 12 Clos Glanlliw, Pontlliw, Swansea, SA4 9EH. 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 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 (119 m² across 16 EPCs), placing it in the larger end of the local stock. It changed hands recently, sold October 2025 for £300,000. Across 2019–2025, sale prices on this property compounded at 7.5% per year. On a £-per-square-foot basis, the last sale (£169/sq ft) was about 30.9% above the typical sold price in the postcode.

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

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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

Certificate validity

Valid until 14 July 2035

8 years remaining

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

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.

On the street

Versus other Clos Glanlliw homes

Four headline reads against 16 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

£1,818

Street avg £1,799

On par

Floor Area

165 m²

Street avg 121 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
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

0.2 km

Oaklands Road — bus stop.

Nearest stops

  • Oaklands RoadBus stop209m
  • Post OfficeBus stop598m
  • TircoedBus stop835m
  • Tircoed VillageBus stop870m

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 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

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£305k

1 Clos Ger Y Bryn, Tircoed Forest Village, Penllergaer

SA4 9JL

4 bed1 bath
£300k

1 Clos Cilfwnwr, Penllergaer

SA4 9BU

£360k

1 Clos Bryn Dafydd, Penllergaer

SA4 9BX

£375k

1 Clos Penderri, Penllergaer

SA4 9BZ

5 bed2 bath
£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
£265k

1 Derwlas, Tircoed Forest Village, Penllergaer

SA4 9SF

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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 12 Clos Glanlliw is modelled from its 165 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in SA4 9EH. 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 12 Clos Glanlliw. 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 12 Clos Glanlliw was lodged in July 2025 at band C and is valid until July 2035. 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 12 Clos Glanlliw. 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 9EH.
Council tax band
12 Clos Glanlliw 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 12 Clos Glanlliw, Pontlliw, Swansea, SA4 9EH. Each answer is also embedded as structured data for search engines.

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