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20 Gelliderw, Pontardawe, Swansea, SA8 4NB

Extendable5 sales on record
Property type
Semi-detached
Bedrooms
3
Bathroom
1
Floor area
87 m²
933 sq ft
Energy rating
D
Score 62
Council tax
Band B
Tenure
Owner Occupied
Overview

About 20 Gelliderw

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

20 Gelliderw is a three-bedroom semi-detached house in Pontardawe, Swansea, Swansea (SA8 4NB). It has a recorded floor area of 87 m² (around 933 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (February 2012) shows a D (score 62), on the cusp of jumping into the C band. When first surveyed in December 2010 the rating was F, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Average, window efficiency went from Average to Good and hot-water efficiency went from Poor to Good. The recommended improvements would push it to C (score 71). The latest certificate is from February 2012, so improvements made since then won't be reflected. Other recorded features include outbuildings. Our model identifies extension potential, subject to local planning policy.

At 87 m² the property is well over the postcode median (62 m² across 39 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 77% of similar EPCs). Most recent transfer: January 2021 at £120,000. Across the public record there are 5 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 2007–2021, sale prices on this property compounded at 3.6% per year. Today's modelled estimate of £173,000 is 44.2% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£129/sq ft) was about 50.8% 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

  • Bedrooms3
  • Bathrooms1
  • Dining roomYes

Outside

  • Private gardenYes
  • DrivewayYes
  • OutbuildingsYes

Building

  • RefurbishedYes
  • Extension potentialPossible
Before you decide

Everything you need to know about 20 Gelliderw

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

Larger development activity nearby

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
Energy

Energy performance

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

20 Gelliderw's EPC is over a decade old — improvements since won't be reflected.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 20 Feb 2022

Current Certificate(1 of 2)
Feb 2012

EPC Rating

A
B
C
D
D62
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
4.1 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Feb 2012from Dec 2010
EPC improved fromF38toD62
Heating Controls
Prog + StatProg + TRVs

Heating controls changed

Hot Water
Main (No Stat)Main System

Hot water system upgraded

Windows
AverageGood

Window efficiency improved

Roof Insulation
UninsulatedInsulated

Roof insulation improved

Low Energy Lighting
25%50%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Mid 20th centurySemi-Detached HouseEPC DPermanent outbuildings

Because the property has permanent outbuildings, we believe a Level 3 building survey should be considered.

From £820 · Includes VAT

Planning

Planning history

Applications and permits filed against 20 Gelliderw, Pontardawe, Swansea, SA8 4NB, sourced from the PlanIt planning register.

20 Gelliderw has no planning applications on record.

2

But the area is active

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

Price

Sales history & valuation

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

20 Gelliderw has changed hands more often than typical for the area.

Current estimate

£173,000

Modelled from EPC, postcode comparables and a sale-price growth of 3.6% per year over 14 years.

See how we calculated this
Last sold (2021)

£120,000

Growth on file: 3.6% per year over 14 years.

Sales timeline

  1. 15 January 2021Most recent

    £120,000

    +16.5%over 2 years
  2. 13 September 2018

    £103,000

    +28.7%over 6 years
  3. 25 April 2012

    £80,000

    -15.8%over 4 years
  4. 11 March 2008

    £95,000

    +28.4%over 12 months
  5. 12 March 2007

    £74,000

Median price across the last 5 sales in SA8 4NB: £145,000 (2025–2023).

On the street

Versus other Gelliderw homes

Four headline reads against 19 similar houses on this street, drawn from the latest EPC and Land Registry data.

20 Gelliderw outperforms the street on years held by a wide margin.

Price per m²

£1,384

Street avg £1,326

On par

Floor Area

87 m²

Street avg 81 m²

On par

Habitable Rooms

5 rooms

Street avg 4 rooms

Above

CO₂ Emissions

4.1 t/year

Street avg 3.4 t/year

Below
Before you decide

Everything you need to know about 20 Gelliderw

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

Larger development activity nearby

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
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

2/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Cefn Llan Stores — 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 20 Gelliderw, Pontardawe, Swansea, SA8 4NB. Each answer is also embedded as structured data for search engines.