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England and Wales / Cymru Wales / West Glamorgan / Neath Port Talbot / Onllwyn

What is the average house price in Onllwyn?
£147,965

Average price per property type

Detached house illustration

Detached

£251,666

Semi-detached house illustration

Semi-Detached

£132,700

Terraced house illustration

Terraced

£88,112

Are prices going up or down?

Short term 📈

Prices increased by £13,733 (10.23%) over the past year

AUG 2025JUL 2026

Long term 📈

Prices increased by £87,010 (142.74%) over the past 10 years

JUL 2016JUL 2026

Quick answers for Onllwyn

5 key facts at a glance.

Most expensive houses in Onllwyn

The five highest recorded property sales in Onllwyn.

View all expensive houses

How do house prices in Onllwyn compare with nearby areas?

Onllwyn compared with the 6 nearest other areas in Neath Port Talbot.

Onllwyn vs Glynneath

Onllwyn
£147,965
Glynneath
£181,132+£33,167

Open comparison

Onllwyn vs Seven Sisters

Onllwyn
£147,965
Seven Sisters
£130,946−£17,019

Open comparison

Onllwyn vs Blaengwrach

Onllwyn
£147,965
Blaengwrach
£166,847+£18,882

Open comparison

Onllwyn vs Resolven

Onllwyn
£147,965
Resolven
£152,235+£4,270

Open comparison

Onllwyn vs Crynant

Onllwyn
£147,965
Crynant
£226,560+£78,595

Open comparison

Onllwyn vs Clyne and Melincourt

Onllwyn
£147,965
Clyne and Melincourt
£175,813+£27,848

Open comparison

Compare Onllwyn with a different area

Data sources

Location boundary data sourced from OpenStreetMap and price information is from HM Land Registry

Last updated at 15 September 2026 at 10:08 with the latest Land Registry data (July 2026). The Onllwyn dataset covers 37 postcodes.

Read our full data methodology

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

About·Data methodology