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21 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU

1 planning record

Estimated value

£338,000

  • Since the 2022 sale (£315,000)+7%
  • Against SA4 9BU's recent median (£325,000)+4%

Newest record on this page: November 2025. 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
5
From EPC
Floor area
81 m²
872 sq ft
Energy rating
D
Score 66
Council tax
Band E
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

£338,000

  • Against its 2022 sale (£315,000)+7%
  • Against SA4 9BU's recent median (£325,000)+4%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Clos Cilfwnwr is modelled from its 81 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in SA4 9BU. 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

    81 m² from the EPC lodged in July 2018

  • Sales of this home

    2 sales recorded, the latest in 2022

  • Recent sales in SA4 9BU

    5 sales, median £325,000 (2025–2022)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: November 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
Planning1 applicationFull 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.

The latest sale landed in the post-pandemic price surge — useful context when reading the figure.

Sales timeline

  1. 21 July 2022Most recent

    £315,000

    +57.5%over 3 years

  2. 9 October 2018

    £200,000

Median price across the last 5 sales in SA4 9BU: £325,000 (2025–2022).

Risks

What this page doesn't show

1 potential issue has already been flagged for 21 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU. 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 21 Clos Cilfwnwr

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

21 Clos Cilfwnwr is a detached house in Penllergaer, Swansea, Swansea (SA4 9BU). It has a recorded floor area of 81 m² (around 872 sq ft), construction records dating it to 1976-1982 and council tax band E. The latest certificate (July 2018) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 84), a 2-band jump.

Across 2018–2022, sale prices on this property compounded at 12.8% per year. On a £-per-square-foot basis, the last sale (£361/sq ft) was about 71.2% above the typical sold price in the postcode. Sold July 2022 for £315,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. One historical planning record sits against the property in 2022.

Before you decide

Everything you need to know about 21 Clos Cilfwnwr

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
Jul 2018

EPC Rating

A
B
C
D
D66
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
3.2 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 24 July 2028

1 year remaining
Planning

Planning history

Applications and permits filed against 21 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU, sourced from the PlanIt planning register.

1 application on record at 21 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU

1decisions1extensions9documents1nearby
  1. Aug 2022
    ExtensionOutline
    Outcome in report

    Extension: Single storey · Rear of property

    Single storey rear extension (application for a Certificate of Proposed Lawful Development)

    Documents
    9 docs on file
    Reference
    2022/1904/PLD
    Full record in report

Unlock 21 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU's full planning history

You're seeing the shape of it. The report has the substance.

  • Every decision — granted, refused or withdrawn (1 on record)
  • All 1 application on this property in full, plus 1 notable nearby
  • The 9 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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On the street

Versus other Clos Cilfwnwr homes

Four headline reads against 10 similar houses on this street, drawn from the latest EPC and Land Registry data.

21 Clos Cilfwnwr outperforms the street on price per m² by a wide margin.

Price per m²

£3,889

Street avg £2,841

Strongly above

Floor Area

81 m²

Street avg 97 m²

Strongly below

Habitable Rooms

5 rooms

Street avg 5 rooms

On par

CO₂ Emissions

3.2 t/year

Street avg 4.2 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

Clos Cilfwnwr — bus stop.

Nearest stops

  • Clos CilfwnwrBus stop79m
  • Penllergaer Primary SchoolBus stop199m
  • Penllergaer RoundaboutBus stop269m
  • Penllergaer Council OfficesBus stop285m

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 centuryDetached BungalowEPC D

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 £595 · 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.
£360k

1 Clos Bryn Dafydd, Penllergaer

SA4 9BX

£305k

1 Clos Ger Y Bryn, Tircoed Forest Village, Penllergaer

SA4 9JL

4 bed1 bath
£375k

1 Clos Penderri, Penllergaer

SA4 9BZ

5 bed2 bath
£300k

1 Clos Cilfwnwr, Penllergaer

SA4 9BU

£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 21 Clos Cilfwnwr is modelled from its 81 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in SA4 9BU. 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 21 Clos Cilfwnwr. 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 21 Clos Cilfwnwr was lodged in July 2018 at band D and is valid until July 2028. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. 1 application is matched to 21 Clos Cilfwnwr. 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 9BU.
Council tax band
21 Clos Cilfwnwr is in council tax band E. 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 21 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU. Each answer is also embedded as structured data for search engines.

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