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Alltwen Isaf Farm, Derwen Road, Alltwen, Pontardawe, Swansea, SA8 3AU

Property type
Detached
Habitable rooms
5
From EPC
Floor area
110 m²
1184 sq ft
Energy rating
E
Score 40
Council tax
Band E
Tenure
Owner Occupied
Overview

About Alltwen Isaf Farm

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

Alltwen Isaf Farm is a detached house in Pontardawe, Swansea, Swansea (SA8 3AU). It has a recorded floor area of 110 m² (around 1184 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (March 2021) shows an E (score 40), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 78), a 2-band jump. Main heating runs on oil.

Today's modelled estimate of £305,000 is 32.2% below the 2022 sale of £450,000, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£380/sq ft) was about 207.5% above the typical sold price in the postcode. Last sale on file: £450,000 in November 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Before you decide

Everything you need to know about Alltwen Isaf Farm

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.

Alltwen Isaf Farm's carbon output runs well above what efficient homes in the postcode produce.

EPC Rating

A
B
C
D
E
E40
F
G
Main Heating
Gas
Main Fuel
Oil
Hot Water
Average
Windows
Good
CO2 Emissions
8.3 t/year
Occupancy
Owner Occupied
SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraDetached HouseEPC EPre-1919 buildExtended multiple times (2+ extensions)No mains gas

Because the property was built before 1919, has been extended more than once, and has no mains gas supply, we believe a Level 3 building survey should be considered.

From £955 · Includes VAT

Planning

Planning history

Applications and permits filed against Alltwen Isaf Farm, Derwen Road, Alltwen, Pontardawe, Swansea, SA8 3AU, sourced from the PlanIt planning register.

Alltwen Isaf Farm has no planning applications on record.

A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.

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

£305,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2022)

£450,000

Recorded with HM Land Registry.

Sales timeline

  1. 28 November 2022Most recent

    £450,000

Median price across the last 5 sales in SA8 3AU: £335,000 (2025–2022).

On the street

Versus other Derwen Road homes

Four headline reads against 33 similar houses on this street, drawn from the latest EPC and Land Registry data.

On price per m², Alltwen Isaf Farm stands well clear of the street.

Price per m²

£4,091

Street avg £1,526

Strongly above

Floor Area

110 m²

Street avg 122 m²

On par

Habitable Rooms

5 rooms

Street avg 6 rooms

Below

CO₂ Emissions

8.3 t/year

Street avg 6.0 t/year

Strongly below
Before you decide

Everything you need to know about Alltwen Isaf Farm

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

Pick your report · every report is £14.99

One time fee only - money back guarantee

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
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£303k

1 Heol Y Nant, Rhos, Pontardawe

SA8 3EQ

3 bed1 bath
£311k

1 Clos Gelli Wen, Alltwen, Pontardawe

SA8 3DF

£295k

1 Graig Gellinudd, Pontardawe

SA8 3HP

£320k

1 Heol Cynfeli, Rhos, Pontardawe

SA8 3FD

£280k

1 Bryn Golau, Alltwen, Pontardawe

SA8 3AF

4 bed1 bath
£277k

1 Heol Alfred Wallace, Rhos, Pontardawe

SA8 3FA

£269k

1 Clos Gwenallt, Pontardawe

SA8 3BD

£260k

1 Derwen Road, Alltwen, Pontardawe

SA8 3AU

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

2/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Heol Phillip — bus stop.

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about Alltwen Isaf Farm, Derwen Road, Alltwen, Pontardawe, Swansea, SA8 3AU. Each answer is also embedded as structured data for search engines.