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4 Derwen Road, Ystradgynlais, Swansea, SA9 1HL

Property type
Detached
Bedrooms
3
Bathroom
1
Floor area
145 m²
1561 sq ft
Energy rating
D
Score 65
Council tax
Band E
Tenure
Owner Occupied
Overview

About 4 Derwen Road

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

4 Derwen Road is a three-bedroom detached house in Ystradgynlais, Swansea, Swansea (SA9 1HL). It has a recorded floor area of 145 m² (around 1561 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (November 2020) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 79). Period features are noted in the property record. The home occupies a cul-de-sac position.

At 145 m² it's 28.3% larger than the typical home in the postcode (113 m² median across 5 EPCs). Across 2018–2021, sale prices on this property compounded at 13.7% per year. Today's modelled estimate of £348,000 is 34.9% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£165/sq ft) was about 100.4% above the typical sold price in the postcode. Last sale on file: £258,000 in April 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Before you offer

Know exactly what you're buying at 4 Derwen Road

Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.

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Valuation

against the asking price

Risks

planning & flood

Sold prices

similar homes nearby

Trends

the local market

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

  • Bedrooms3
  • Bathrooms1
  • Dining roomYes
  • StudyYes

Outside

  • Private gardenrear
  • Parkingoff_road
  • Cul-de-sacYes

Building

  • Period featuresYes
  • RefurbishedYes
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

4 Derwen Road's carbon output runs well above what efficient homes in the postcode produce.

EPC Rating

A
B
C
D
D65
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
6.5 t/year
Occupancy
Owner Occupied
Planning

Planning history

Applications and permits filed against 4 Derwen Road, Ystradgynlais, Swansea, SA9 1HL, sourced from the PlanIt planning register.

4 Derwen Road has no planning applications on record.

Notable planning nearby

2applications of note in the surrounding area

Before you offer

We flagged 1 thing worth checking at 4 Derwen Road

Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.

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Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

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

Current estimate

£348,000

Modelled from EPC, postcode comparables and a sale-price growth of 13.7% per year over 3 years.

See how we calculated this
Last sold (2021)

£258,000

Growth on file: 13.7% per year over 3 years.

Sales timeline

  1. 6 April 2021Most recent

    £258,000

    +39.5%over 2 years
  2. 6 September 2018

    £185,000

Median price across the last 5 sales in SA9 1HL: £122,250 (2025–2003).

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Everything we know about 4 Derwen Road, in one report

What it's really worth, what could be wrong, and the planning, sales and area data in full.

What we flagged

  • Larger development activity nearby
£9.99£14.99
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Preview of the full property report
On the street

Versus other Derwen Road homes

Four headline reads against 5 similar houses on this street, drawn from the latest EPC and Land Registry data.

On floor area, 4 Derwen Road stands well clear of the street.

Price per m²

£1,779

Street avg £1,406

Above

Floor Area

145 m²

Street avg 111 m²

Strongly above

Habitable Rooms

6 rooms

Street avg 5 rooms

Strongly above

CO₂ Emissions

6.5 t/year

Street avg 4.9 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.

Crime

6/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Teddy Bear Bridge — bus stop.

Go deeper on the local area

The full report breaks down crime, transport links, schools and air quality in depth.

Map

Everything within walking distance

Schools, transport stops and scenic spots near this property — 30 points of interest in total.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 4 Derwen Road, Ystradgynlais, Swansea, SA9 1HL. Each answer is also embedded as structured data for search engines.