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21 Alltywerin, Pontardawe, Swansea, SA8 4NQ

3 sales on record

Estimated value

£182,000

  • Since the 2022 sale (£170,500)+7%
  • Against SA8 4NQ's recent median (£130,000)+40%

Newest record on this page: November 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
115 m²
1238 sq ft
Energy rating
D
Score 64
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

£182,000

  • Against its 2022 sale (£170,500)+7%
  • Against SA8 4NQ's recent median (£130,000)+40%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Alltywerin is modelled from its 115 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in SA8 4NQ. 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

    115 m² from the EPC lodged in April 2022

  • Sales of this home

    3 sales recorded, the latest in 2022

  • Recent sales in SA8 4NQ

    5 sales, median £130,000 (2025–2019)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: November 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.

Sale price has at least doubled since 2013.

Sales timeline

  1. 13 April 2022Most recent

    £170,500

    +199.1%over 8 years

  2. 31 January 2014

    £57,000

    -12.3%over 11 months

  3. 8 March 2013

    £65,000

Median price across the last 5 sales in SA8 4NQ: £130,000 (2025–2019).

Risks

What this page doesn't show

1 potential issue has already been flagged for 21 Alltywerin, Pontardawe, Swansea, SA8 4NQ. 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 21 Alltywerin

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

21 Alltywerin is a three-bedroom semi-detached house in Pontardawe, Swansea, Swansea (SA8 4NQ). It has a recorded floor area of 115 m² (around 1238 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (April 2022) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in March 2012 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Good to Very Good, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would lift it to B (score 82), a 2-band jump. Other recorded features include a conservatory.

At 115 m² the property is well over the postcode median (85 m² across 31 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs). Across 2013–2022, sale prices on this property compounded at 11.2% per year. On a £-per-square-foot basis, the last sale (£138/sq ft) was about 39.6% above the typical sold price in the postcode. Sold April 2022 for £170,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

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
  • CloakroomYes
  • ConservatoryYes

Outside

  • Private gardenYes
  • ParkingOff road
Before you decide

Everything you need to know about 21 Alltywerin

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

Larger development activity nearby

Pick your report · from £14.99

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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.

Recommended upgrades on file would lift this property by multiple EPC bands.

Current Certificate(1 of 2)
Apr 2022

EPC Rating

A
B
C
D
D64
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
4.3 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 11 April 2032

5 years remaining

Property Improvements

Changes detected from historical EPC data

Apr 2022from Mar 2012
EPC improved fromE50toD64
Heating Controls
Prog + TRVsFull

Heating controls upgraded for better temperature management

Hot Water
AverageGood

Hot water efficiency improved

Roof
GoodVery Good

Roof insulation improved

Low Energy Lighting
6%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 21 Alltywerin, Pontardawe, Swansea, SA8 4NQ, sourced from the PlanIt planning register.

21 Alltywerin 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 Alltywerin homes

Four headline reads against 31 similar houses on this street, drawn from the latest EPC and Land Registry data.

Floor Area for 21 Alltywerin runs comfortably ahead of the street norm.

Price per m²

£1,483

Street avg £1,301

Above

Floor Area

115 m²

Street avg 88 m²

Strongly above

Habitable Rooms

5 rooms

Street avg 5 rooms

On par

CO₂ Emissions

4.3 t/year

Street avg 3.2 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.
Full Swansea report

Crime

66/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Alltywerin — bus stop.

Nearest stops

  • AlltywerinBus stop88m
  • East CrosswaysBus stop141m
  • East CrosswaysBus stop141m
  • Compass RowBus stop283m

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

Early 20th centurySemi-Detached HouseEPC DExtended multiple times (2+ extensions)

Because the property has been extended more than once, 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
£172k

1 Cwrt Y Waun, Rhydyfro, Pontardawe

SA8 4NW

£209k

1 3, Orchard Street, Pontardawe

SA8 4ER

£156k

1 Bronywawr, Pontardawe

SA8 4JY

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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 21 Alltywerin is modelled from its 115 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in SA8 4NQ. 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. 3 sales are recorded for 21 Alltywerin. 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 21 Alltywerin was lodged in April 2022 at band D and is valid until April 2032. 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 21 Alltywerin. 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 4NQ.
Council tax band
21 Alltywerin 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 21 Alltywerin, Pontardawe, Swansea, SA8 4NQ. Each answer is also embedded as structured data for search engines.

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