1Leasehold: Lease documents needed
The lease term and charges affect future costs and mortgage options.
Ask the agent for the lease, remaining term, charges and planned works.
Before you offer
The lease term and charges affect future costs and mortgage options.
Ask the agent for the lease, remaining term, charges and planned works.
Higher-radon area (5–10% of homes). Radon can affect long-term health.
Ask for existing test results or use a 3-month test kit, about £50.
Poor insulation or an EPC E–G rating can mean higher heating bills.
Read the full certificate and ask about insulation and heating costs.
+ Flood risk very low · Outside coal high-risk area
Not covered here yet: conservation area, listed buildings nearby, article 4 direction, tree protection, airport noise. Your conveyancer’s local search covers the planning checks.
Prepare for a viewing ↓Saved privately on this deviceIf it moved with Rhondda Cynon Taf flat prices
| Sold | Price | Type | Tenure | Record |
|---|---|---|---|---|
| Apr 2021 | £55,000 | Flat / maisonette | Leasehold | A |
| Jan 2021 | £41,000 | Flat / maisonette | Leasehold | Category B: additional transaction |
| Address | Sold | Price | Type | Tenure |
|---|---|---|---|---|
| 21 Navigation Street, Mountain Ash, CF45 4BW | Oct 2025 | £220,000 | Semi-detached | Freehold |
| 2 Navigation Street, Mountain Ash, CF45 4BW | Oct 2024 | £125,000 | Terraced | Freehold |
| 2 Navigation Street, Mountain Ash, CF45 4BW | Apr 2024 | £76,000 | Terraced | Freehold |
| 12 Navigation Street, Mountain Ash, CF45 4BW | Aug 2023 | £155,000 | Terraced | Freehold |
| 19 Navigation Street, Mountain Ash, CF45 4BW | Aug 2023 | £99,000 | Terraced | Freehold |
| 17 Navigation Street, Mountain Ash, CF45 4BW | Sep 2022 | £85,000 | Terraced | Freehold |
| 28 Navigation Street, Mountain Ash, CF45 4BW | Oct 2021 | £73,500 | Terraced | Leasehold |
| 25 Navigation Street, Mountain Ash, CF45 4BW | Apr 2021 | £55,000 | Flat / maisonette | Leasehold |
Higher-radon area (5–10% of homes). Radon can affect long-term health.
Ask for existing test results or use a 3-month test kit, about £50.
+ Flood risk very low · Outside coal high-risk area
Not covered here yet: conservation area, listed buildings nearby, article 4 direction, tree protection. Your conveyancer’s local search covers the planning checks.
View building and land map ↑Poor insulation or an EPC E–G rating can mean higher heating bills.
Read the full certificate and ask about insulation and heating costs.
Outdoor noise can affect sleep and enjoyment of the home.
Visit at busy times and check the rooms with the windows open.
Outdoor noise can affect sleep and enjoyment of the home.
Visit at busy times and check the rooms with the windows open.
Postcode residential gigabit coverage: 100%
Full fibre in the local authority: 82.6%
Unavailable
Deprivation decile (1 is most deprived within its nation): 3 · Wales 2025
Recorded police incidents: 181
CF45 4BW →Saved privately on this device
Refresh the saved facts when you return. No email alerts are sent.
Needs document · Saved privately on this device
Ask a surveyor to confirm Level 2 or Level 3 after reviewing the age, condition and alterations.
Ask the conveyancer about local authority, drainage, environmental, flood and mining searches appropriate to this address.
Compare survey levels →Which survey level covers this home’s condition, damp, cracks and any alterations?
Which title, drainage and local searches are needed for this address?
Contains British Geological Survey materials © UKRI 2026
Radon Potential classification UK Health Security Agency © Crown copyright 2022
© Environment Agency copyright and/or database right 2026. All rights reserved.
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