What kind of home is 20 Clos Helyg, SA4 3GH?

20 Clos Helyg, SA4 3GH is a 2-bedroom semi-detached house.

What did 20 Clos Helyg, SA4 3GH sell for?

20 Clos Helyg, SA4 3GH last sold for £140,000 in January 2018, around 9 years ago. Land Registry has 4 sales on record going back to £54,950 in May 2000. Source: HM Land Registry.

How has the value of 20 Clos Helyg, SA4 3GH changed over time?

Across 4 sales between May 2000 and January 2018, 20 Clos Helyg, SA4 3GH rose from £54,950 to £140,000, a change of £85,050. That works out to roughly +5.4% per year compounded over 18 years. Source: HM Land Registry.

How energy efficient is 20 Clos Helyg, SA4 3GH?

The current EPC rating for 20 Clos Helyg, SA4 3GH is C with a score of 73 out of 100, lodged in November 2023. It has improved from a D recorded in October 2013. The assessor estimates the property could reach a B. Source: EPC Register.

How big is 20 Clos Helyg, SA4 3GH?

20 Clos Helyg, SA4 3GH has a recorded floor area of 56 m² (603 sq ft), around 28 m² per bedroom. Source: EPC Register.

What heating system does 20 Clos Helyg, SA4 3GH use?

The latest EPC at 20 Clos Helyg, SA4 3GH records mains gas as the main heating fuel. Source: EPC Register.

What is the council tax band for 20 Clos Helyg, SA4 3GH?

20 Clos Helyg, SA4 3GH is in council tax band C.

Which area is 20 Clos Helyg, SA4 3GH in?

20 Clos Helyg, SA4 3GH sits in Gowerton, Swansea, Swansea. It falls within the SA4 postcode district.

Is 20 Clos Helyg, SA4 3GH in a safe area?

Police records around 20 Clos Helyg, SA4 3GH show an average of 160 reported crimes per month over the last 14 months. Violent crime makes up roughly 44% of reports, the most common category. The overall trend is falling (16% versus the prior period). Source: Police UK.

What is the nearest station to 20 Clos Helyg, SA4 3GH?

The closest bus stop to 20 Clos Helyg, SA4 3GH is Gurnos Road, 139m away. The nearest rail option is Gowerton Rail Station, 524m away.

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20 Clos Helyg, Gowerton, Swansea, SA4 3GH

4 sales on record

Estimated value

£193,000

Since the 2018 sale (£140,000)+38%
Against SA4 3GH's recent median (£225,000)-14%

Newest record on this page: April 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

Bedrooms

Floor area

56 m²

603 sq ft

Energy rating

Score 73

Council tax

Band C

Tenure

Private Rental

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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

£193,000

Against its 2018 sale (£140,000)+38%
Against SA4 3GH's recent median (£225,000)-14%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 20 Clos Helyg is modelled from its 56 m² EPC floor area, its 4 recorded sales and recent sales of comparable homes in SA4 3GH. 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
56 m² from the EPC lodged in November 2023
Sales of this home
4 sales recorded, the latest in 2018
Recent sales in SA4 3GH
5 sales, median £225,000 (2026–2019)

This page or the full report?

Data	This page	Full report
Sales	Latest sale shown: April 2026	Latest available records, read when you order
Valuation	Estimate from the last refresh	Analysed against comparable sales
Planning	None on this home	Full history, plus nearby schemes
Flood risk	Not shown	Included

Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

Sale price has at least doubled since 2000.

Sales timeline

29 January 2018Most recent
£140,000
+12.0%over 1 year
5 May 2016
£125,000
-3.5%over 8 years
9 August 2007
£129,500
+135.7%over 7 years
11 May 2000
£54,950

Median price across the last 5 sales in SA4 3GH: £225,000 (2026–2019).

Nearby sales in SA4 3GH

Risks

What this page doesn't show

1 potential issue has already been flagged for 20 Clos Helyg, Gowerton, Swansea, SA4 3GH. The detail, evidence and what to ask about it are in the Risks Report.

Signs of HMO activity in the areaIn 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 20 Clos Helyg

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

20 Clos Helyg is a two-bedroom semi-detached house in Gowerton, Swansea, Swansea (SA4 3GH). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1996-2002 and council tax band C. The latest certificate (November 2023) shows a C (score 73). When first surveyed in October 2013 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Average to Good and lighting went from Average to Very Good. The recommended improvements would push it to B (score 88).

9 years since the last transfer (January 2018). Across the public record there are 4 sales, relatively high churn for a single property. Across 2000–2018, sale prices on this property compounded at 5.4% per year. Today's modelled estimate of £193,000 is 37.9% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£232/sq ft) was about 129.2% above the typical sold price in the postcode.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

Bedrooms2
Dining roomYes

Outside

Private gardenRear
ParkingOff road

Building

Heating systemGas

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Everything you need to know about 20 Clos Helyg

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

Signs of HMO activity in the area

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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 3)

Nov 2023

EPC Rating

C73

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Good

CO2 Emissions

1.8 t/year

Occupancy

Rented

Certificate validity

Valid until 1 November 2033

6 years remaining

Property Improvements

Changes detected from historical EPC data

Nov 2013from Oct 2013

Windows

AverageGood

Window efficiency improved

Roof Insulation

InsulatedWell Insulated

Loft insulation upgraded to recommended levels

Floor Insulation

UninsulatedPartial

Floor insulation added or improved

Nov 2023from Nov 2013

EPC improved fromD68toC73

Low Energy Lighting

56%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 20 Clos Helyg, Gowerton, Swansea, SA4 3GH, sourced from the PlanIt planning register.

20 Clos Helyg has no planning applications on record.

But the area is active

4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

On the street

Versus other Clos Helyg homes

Four headline reads against 17 similar houses on this street, drawn from the latest EPC and Land Registry data.

EPC Rating for 20 Clos Helyg runs comfortably ahead of the street norm.

Price per m²

£2,500

Street avg £2,052

Above

Floor Area

56 m²

Street avg 83 m²

Below

Habitable Rooms

3 rooms

Street avg 5 rooms

Strongly below

CO₂ Emissions

1.8 t/year

Street avg 2.9 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

Rail-style transport is unusually close for this postcode.

Crime

160/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Gurnos Road — bus stop.

Nearest stops

Gurnos RoadBus stop139m
Mount StreetBus stop206m
Gowerton SurgeryBus stop215m
Hill StreetBus stop243m

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.

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Late 20th centurySemi-Detached HouseEPC C

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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.

£215k

1 Benson Terrace, Penclawdd

SA4 3GA

2 bed

£248k

1 Bridge House, Banc Bach, Penclawdd

SA4 3FL

3 bed2 bath

£265k

1 Banc Bach, Penclawdd

SA4 3FJ

3 bed

£97k

1 Cae Grawn, Gowerton

SA4 3BY

1 bed1 bath

£193k

1 Beach House, Beach Road, Penclawdd

SA4 3YN

£193k

1 Brynfa Terrace, Penclawdd

SA4 3FZ

£197k

1 Beach Row, Penclawdd

SA4 3YR

£203k

1 Blodwen Terrace, Penclawdd

SA4 3XU

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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 20 Clos Helyg is modelled from its 56 m² EPC floor area, its 4 recorded sales and recent sales of comparable homes in SA4 3GH. 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. 4 sales are recorded for 20 Clos 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 20 Clos Helyg was lodged in November 2023 at band C and is valid until November 2033. 3 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 20 Clos 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 14 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from SA4 3GH.
Council tax band: 20 Clos Helyg 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 20 Clos Helyg, Gowerton, Swansea, SA4 3GH. Each answer is also embedded as structured data for search engines.

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