Compare house prices

How do I compare house prices between areas?

The average house price in Onllwyn is £123,430 over the last 12 months. Over the past year prices fell 21.1%.

Cymru Wales / West Glamorgan / Neath Port Talbot

Onllwyn

£123,430

Average price, last 12 months

−21.1% in a year
OCT 2016£75kSEPT 2026£123k

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Where is this area?

Boundary outlines for this location, using the same colours as the rest of the page.

What can I buy with my budget in Onllwyn?

With £130,000 you could afford the average semi-detached house in Onllwyn.

£130,000

Onllwyn

  • Terraced

    £95,150

    In budget

  • Semi-detached

    £129,769

    In budget

  • Detached

    £222,500

    £93k short

Average sale price by type of home over the last 12 months, from HM Land Registry. These are averages, so cheaper homes of each type do sell.

How much would a mortgage cost in Onllwyn?

With a 10% deposit, a 25-year mortgage at 4.5% on the average home in Onllwyn costs £617 a month.

10%
4.5%
25 years
  • Onllwyn

    £617

    a month

    Average price
    £123,430
    Deposit
    £12,343
    Mortgage
    £111,087
    Salary needed at 4.5×
    £24,686

A repayment mortgage on each location's average sale price over the last 12 months. The rate is an example, not a quote, so check current deals. Many lenders cap borrowing at about 4.5 times income.

What does each type of home cost?

Average sale price by property type over the last 12 months.

Detached

  • £222,500

Semi-detached

  • £129,769

Terraced

  • £95,150

What kinds of homes sell in each area?

Share of last 12 months' sales by property type.

  • Detached
  • Semi-detached
  • Terraced
  • Flats

Onllwyn

Mostly semi-detached houses

21%
65%
15%

How green is Onllwyn?

Onllwyn has 0 public parks among 11 green space sites. Green space covers 0.6% of the area: about 56 m² per resident, or 7.9 football pitches for every 1,000 people. More green space per resident than 77% of areas in England and Wales, where the typical area has 31 m².

  • Onllwyn

    0.6%

    of the land is green space
    56 m² per resident, or 7.9 football pitches for every 1,000 residents
    0 public parks

Each grid is the location's land, one square per 1%. Green space from OS Open Greenspace, not counting golf courses; Contains OS data © Crown copyright and database right 2026.

How crowded is Onllwyn?

Onllwyn has about 0.8 residents for every football pitch of land, or 280 people per square mile, which counts as high density.

Onllwyn
0.8 people per football pitch of land · 280 per square mile

Census 2021 population divided by land area. A football pitch is about 7,140 m² (105 m × 68 m).

How have average house prices moved?

Rolling 12-month average for each location, last 10 years. Gaps mean no sales were recorded that month.

When have prices risen and fallen in Onllwyn?

Prices in Onllwyn were down on a year earlier in 27 months of the 108 since October 2017. They are now down 21.1% on a year earlier.

Onllwyn27 of 108 months down
FallingRising

Each stripe is one month: the rolling 12-month average against the same month a year earlier, since October 2017. Falls are hatched as well as red.

How many homes were sold?

Monthly sales volume for each location, last 10 years.

How do all the numbers compare?

Every measure side by side. The highest value in each row is highlighted.

Latest 12-month average

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    £123,430

Change over 1 year

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    −£33,070

Change over ~10 years

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    +£55,758

Homes sold (last 12 months)

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    15

Number of postcodes

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    37

Households (Census 2021)

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    512

Household density

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    122 per sq mi · High

Population (Census 2021)

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    1,170

Population density

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    280 per sq mi · High

Green space per resident

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    56 m² per resident · more than 77% of areas

Green space share of area

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    0.6%

Public parks

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    0

Crime rate (per 1,000 residents)

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    82 per 1,000 · Very High

Crime vs previous 12 months

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    +2.1%

Anti-social behaviour per 1,000 residents

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    8.5 per 1,000

Peak month

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    AUG 2025 · £310,000

Most common price band

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    £100k – £150k · 41.2%

Detached average

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    £222,500

Semi-detached average

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    £129,769

Terraced average

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    £95,150

Flats average

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    —

Detached share of sales

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    20.6%

Semi-detached share of sales

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    64.7%

Terraced share of sales

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    14.7%

Flats share of sales

  • Onllwyn

    Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

    0.0%

Sold prices from HM Land Registry. Households and population from Census 2021. Green space from OS Open Greenspace, not counting golf courses; Contains OS data © Crown copyright and database right 2026. Crime is police-recorded crime from police.uk, per 1,000 residents, over the latest 12 published months; anti-social behaviour is counted separately. Contains public sector information licensed under the Open Government Licence v3.0. Source: police.uk.

Thinking of buying a property?

There's a lot to think about. Whether it's a home to live in or a buy-to-let, our free checklist walks you through what to check before you make an offer.

What to check before you buy

Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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