HM Land Registry records the plot of land for 1, Glancynon Street, Mountain Ash as measuring 136 m².

That makes it the 16th largest plot in the postcode, where 20 of the 25 other houses have recorded plot data.

1, Glancynon Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 14 Apr 2016.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

The most recent sale of 1, Glancynon Street, Mountain Ash completed on 25th November 2010 at £55,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 116.4% over the period since November 2010.

• Sold Nov 2010£55,000

Since 2019 109 properties similar to 1, Glancynon Street, Mountain Ash have sold within a radius of 610 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 14th November 2025, was 111, Woodfield Terrace, Mountain Ash, CF45 3UT, a freehold house which sold for £108,000.

Read more about house prices in CF45.

• Sold Nov 2025£108,000 | 3 Bed House111, Woodfield Terrace, Mountain Ash, CF45 3UT111, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Nov 2025£120,000 | 3 Bed House100, Woodfield Terrace, Mountain Ash, CF45 3UT100, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Nov 2025£65,000 | 3 Bed House110, Woodfield Terrace, Mountain Ash, CF45 3UT110, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Sep 2025£130,000 | 3 Bed House14, Oakland Street, Mountain Ash, CF45 3AL14, Oakland Street, Mountain Ash, CF45 3AL
• Sold Jun 2025£135,000 | 3 Bed House3, Glancynon Street, Mountain Ash, CF45 3YU3, Glancynon Street, Mountain Ash, CF45 3YU
• Sold Jun 2025£98,000 | 3 Bed House96, Clarence Street, Mountain Ash, CF45 3BD96, Clarence Street, Mountain Ash, CF45 3BD
• Sold Jun 2025£127,500 | 3 Bed House27, Edward Street, Mountain Ash, CF45 3AJ27, Edward Street, Mountain Ash, CF45 3AJ
• Sold Nov 2024£140,000 | 4 Bed House20, Harcourt Terrace, Mountain Ash, CF45 3SD20, Harcourt Terrace, Mountain Ash, CF45 3SD
• Sold Jun 2024£47,000 | 3 Bed House40, Thomas Street, Mountain Ash, CF45 3BU40, Thomas Street, Mountain Ash, CF45 3BU
• Sold Apr 2024£117,000 | 3 Bed HouseGlanffrwd Villa, Woodfield Terrace, Mountain Ash, CF45 3UTGlanffrwd Villa, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Dec 2023£18,000 | 4 Bed House1A, Thomas Street, Mountain Ash, CF45 3BU1A, Thomas Street, Mountain Ash, CF45 3BU
• Sold Nov 2023£148,000 | 3 Bed House22, Edward Street, Mountain Ash, CF45 3AJ22, Edward Street, Mountain Ash, CF45 3AJ
• Sold Jun 2023£147,500 | 3 Bed HouseBryncerdyn Villa, Woodfield Terrace, Mountain Ash, CF45 3UTBryncerdyn Villa, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold May 2023£115,000 | 3 Bed House40, Oakland Street, Mountain Ash, CF45 3AL40, Oakland Street, Mountain Ash, CF45 3AL
• Sold Sep 2022£136,500 | 3 Bed HouseGlyntaf Villa, Woodfield Terrace, Mountain Ash, CF45 3UTGlyntaf Villa, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Jun 2022£92,000 | 3 Bed House23, Arthur Street, Mountain Ash, CF45 3BL23, Arthur Street, Mountain Ash, CF45 3BL
• Sold Sep 2021£99,000 | 3 Bed House5, Harcourt Terrace, Mountain Ash, CF45 3SD5, Harcourt Terrace, Mountain Ash, CF45 3SD
• Sold Sep 2021£125,000 | 3 Bed HouseGlenhill Villa, Woodfield Terrace, Mountain Ash, CF45 3UTGlenhill Villa, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Feb 2021£57,500 | 3 Bed House14, Thomas Street, Mountain Ash, CF45 3BU14, Thomas Street, Mountain Ash, CF45 3BU
• Sold Jun 2019£750 | 3 Bed House18, Thomas Street, Mountain Ash, CF45 3BU18, Thomas Street, Mountain Ash, CF45 3BU

Of the 28 addresses on Glancynon Street, Mountain Ash, CF45, 1, Glancynon Street, Mountain Ash comes out as the 4th largest and the 4th most expensive in our analysis of the public data.

It is also £20k less expensive than the average property across the CF45 district.

• Mountain Ash

  |

  900 m away
• Penrhiwceiber

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  900 m away
• Fernhill

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  2.2 km away

The flood risk here is rated Very Low, based on Environment Agency data.