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20 Gelliderw, Pontardawe, Swansea, SA8 4NB

Extendable5 sales on record

Estimated value

£162,000

  • Since the 2021 sale (£120,000)+35%
  • Against SA8 4NB's recent median (£145,000)+12%

Newest record on this page: July 2025. 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
3
Bathroom
1
Floor area
87 m²
933 sq ft
Energy rating
D
Score 62
Council tax
Band B
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

£162,000

  • Against its 2021 sale (£120,000)+35%
  • Against SA8 4NB's recent median (£145,000)+12%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 20 Gelliderw is modelled from its 87 m² EPC floor area, its 5 recorded sales and recent sales of comparable homes in SA8 4NB. 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

    87 m² from the EPC lodged in February 2012

  • Sales of this home

    5 sales recorded, the latest in 2021

  • Recent sales in SA8 4NB

    5 sales, median £145,000 (2025–2024)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: July 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull 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.

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

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 (2025–2024).

Risks

What this page doesn't show

1 potential issue has already been flagged for 20 Gelliderw, Pontardawe, Swansea, SA8 4NB. The detail, evidence and what to ask about it are in the Risks Report.
  • Larger development activity nearbyIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

One time fee only - money back guarantee

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 72% 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 £162,000 is 35% 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

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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.

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

Certificate validity

Expired on 20 February 2022

New assessment needed to sell or let

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

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.

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 82 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
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

66/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Cefn Llan Stores — bus stop.

Nearest stops

  • Cefn Llan StoresBus stop87m
  • GelliderwBus stop121m
  • Fairway DriveBus stop142m
  • Rhyd-y-FroBus stop176m

Most reported crime locally

  • Violence & Sexual Offences384 reports48%
  • Anti-social Behaviour92 reports12%
  • Public Order87 reports11%
  • Criminal Damage & Arson63 reports8%

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 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

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£178k

1 Allt Y Cham Drive, Pontardawe

SA8 4JR

3 bed1 bath
£193k

1 Derw Road, Pontardawe

SA8 4AN

3 bed1 bath
£232k

1 Davies Road, Pontardawe

SA8 4PH

3 bed1 bath
£214k

1 Clos Y Cwm, Pontardawe

SA8 4JZ

2 bed1 bath
£275k

1 Bryn Onnen, Pontardawe

SA8 4LH

4 bed
£156k

1 Bronywawr, Pontardawe

SA8 4JY

£154k

1 Cefn Llan Road, Pontardawe

SA8 4NA

£153k

1 Clos Nant Ddu, Ynysmeudwy, Pontardawe

SA8 4BW

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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 Gelliderw is modelled from its 87 m² EPC floor area, its 5 recorded sales and recent sales of comparable homes in SA8 4NB. 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. 5 sales are recorded for 20 Gelliderw. 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 Gelliderw was lodged in February 2012 at band D and expired in February 2022, so a new one is needed to sell or let. 2 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 Gelliderw. 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 12 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from SA8 4NB.
Council tax band
20 Gelliderw is in council tax band B. 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 Gelliderw, Pontardawe, Swansea, SA8 4NB. Each answer is also embedded as structured data for search engines.

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