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21 Cefn Helyg, Sketty, Swansea, SA2 9GY

1 planning record

Estimated value

£413,000

  • Since the 2003 sale (£204,995)+101%
  • Against SA2 9GY's recent median (£310,000)+33%

Newest record on this page: April 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
9
From EPC
Floor area
141 m²
1518 sq ft
Energy rating
E
Score 51
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

£413,000

  • Against its 2003 sale (£204,995)+101%
  • Against SA2 9GY's recent median (£310,000)+33%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Cefn Helyg is modelled from its 141 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in SA2 9GY. 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

    141 m² from the EPC lodged in April 2022

  • Sales of this home

    2 sales recorded, the latest in 2003

  • Recent sales in SA2 9GY

    5 sales, median £310,000 (2025–2018)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: April 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.

21 Cefn Helyg's estimated value is more than triple its earliest registered sale price (1996).

Sales timeline

  1. 30 July 2003Most recent

    £204,995

    +70.8%over 7 years

  2. 2 February 1996

    £120,000

Median price across the last 5 sales in SA2 9GY: £310,000 (2025–2018).

Risks

What this page doesn't show

Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks 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 Cefn Helyg

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

21 Cefn Helyg is a detached house in Sketty, Swansea, Swansea (SA2 9GY). It has a recorded floor area of 141 m² (around 1518 sq ft), construction records dating it to 1991-1995 and council tax band F. The latest certificate (April 2022) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 74), a 2-band jump.

Untraded for 23 years, with the last transfer in July 2003. At 141 m² the property is well over the postcode median (107 m² across 10 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1996–2003, sale prices on this property compounded at 7.4% per year. Today's modelled estimate of £413,000 sits 101.5% above the 2003 sale of £204,995. On a £-per-square-foot basis, the last sale (£135/sq ft) was about 27.7% below the postcode norm. One planning record on file: an extension approved in 2012. Past consents include an extension and a porch, meaningful when judging how the property has evolved.

Before you decide

Everything you need to know about 21 Cefn Helyg

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

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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.

21 Cefn Helyg sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.

Current Certificate
Apr 2022

EPC Rating

A
B
C
D
E
E51
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Average
CO2 Emissions
7.7 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 4 April 2032

5 years remaining
Planning

Planning history

Applications and permits filed against 21 Cefn Helyg, Sketty, Swansea, SA2 9GY, sourced from the PlanIt planning register.

21 Cefn Helyg has an approved extension on the planning record.

1 application on record at 21 Cefn Helyg, Sketty, Swansea, SA2 9GY

1decisions1extensions6documents2nearby
  1. Jan 2012
    PorchFull
    Outcome in report

    Front porch

    Extension
    Documents
    6 docs on file
    Reference
    2011/1604
    Full record in report

Unlock 21 Cefn Helyg, Sketty, Swansea, SA2 9GY'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 2 notable nearby
  • The 6 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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On the street

Versus other Cefn Helyg homes

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

On price per m², 21 Cefn Helyg runs well behind the street norm.

Price per m²

£1,454

Street avg £2,637

Strongly below

Floor Area

141 m²

Street avg 99 m²

Strongly above

Habitable Rooms

9 rooms

Street avg 6 rooms

Strongly above

CO₂ Emissions

7.7 t/year

Street avg 3.9 t/year

Strongly below
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

120/mo

Steady year-on-year across the wider district.

Nearest stop

0.2 km

Llwyn Mawr Road — bus stop.

Nearest stops

  • Llwyn Mawr RoadBus stop174m
  • Llwyn Mawr RoadBus stop179m
  • Llwyn MawrBus stop196m
  • Rowan AvenueBus stop204m

Most reported crime locally

  • Violence & Sexual Offences819 reports40%
  • Public Order212 reports10%
  • Criminal Damage & Arson191 reports9%
  • Shoplifting183 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 HouseEPC E

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.

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Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£392k

1 Brynmead Close, Sketty

SA2 9EY

4 bed2 bath
£385k

1 Bayswater Road, Sketty

SA2 9HA

£374k

1 Bryn Derwen, Sketty

SA2 9GX

3 bed1 bath
£369k

1 Ffordd Aneurin Bevan, Sketty

SA2 9GZ

£361k

1 Caebryn Avenue, Sketty

SA2 9AT

£358k

1 Eversley Road, Sketty

SA2 9DB

6 bed2 bath
£478k

1 Cefn Glas, Sketty

SA2 9GW

5 bed3 bath
£498k

1 Awel Y Mor, Sketty

SA2 9FL

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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 Cefn Helyg is modelled from its 141 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in SA2 9GY. 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 Cefn Helyg. 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 Cefn Helyg was lodged in April 2022 at band E and is valid until April 2032. 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 Cefn Helyg. 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 17 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from SA2 9GY.
Council tax band
21 Cefn Helyg 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 21 Cefn Helyg, Sketty, Swansea, SA2 9GY. Each answer is also embedded as structured data for search engines.

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