The House CheckCheck before you offer

25 Navigation Street, Mountain Ash, CF45 4BW

Flat / maisonetteLeasehold33 m² · EPC
Last sale£55,000Apr 2021 · HM Land Registry
If it moved with Rhondda Cynon Taf flat prices£64,000Aug 2026 · UK HPI
RadonTesting advised
EnergyEPC EFeb 2014
123MapN ↑118 m ↔
Contains OS data © Crown copyright and database right 2026 · Contains HM Land Registry data © Crown copyright and database right 2026

Before you offer

3 things to check

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.

HM Land Registry · Apr 2021

2Radon: Testing advised

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.

BGS / UKHSA · Dec 2022

3EPC E

Poor insulation or an EPC E–G rating can mean higher heating bills.

Read the full certificate and ask about insulation and heating costs.

EPC · Feb 2014

+ 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.

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Price

If it moved with Rhondda Cynon Taf flat prices

£64,000

How does the asking price compare?

Enter a figure, or “offers over £500k”. Saved privately on this device

This home’s sale history

Jan 2021 £41,000Apr 2021 £55,000Jan 2021Apr 2021£55,000
SoldPriceTypeTenureRecord
Apr 2021£55,000Flat / maisonetteLeaseholdA
Jan 2021£41,000Flat / maisonetteLeaseholdCategory B: additional transaction

Street sales

AddressSoldPriceTypeTenure
21 Navigation Street, Mountain Ash, CF45 4BWOct 2025£220,000Semi-detachedFreehold
2 Navigation Street, Mountain Ash, CF45 4BWOct 2024£125,000TerracedFreehold
2 Navigation Street, Mountain Ash, CF45 4BWApr 2024£76,000TerracedFreehold
12 Navigation Street, Mountain Ash, CF45 4BWAug 2023£155,000TerracedFreehold
19 Navigation Street, Mountain Ash, CF45 4BWAug 2023£99,000TerracedFreehold
17 Navigation Street, Mountain Ash, CF45 4BWSep 2022£85,000TerracedFreehold
28 Navigation Street, Mountain Ash, CF45 4BWOct 2021£73,500TerracedLeasehold
25 Navigation Street, Mountain Ash, CF45 4BWApr 2021£55,000Flat / maisonetteLeasehold
Show all 21
AddressSoldPriceTypeTenure
12 Navigation Street, Mountain Ash, CF45 4BWMar 2021£87,000TerracedFreehold
25 Navigation Street, Mountain Ash, CF45 4BWJan 2021£41,000Flat / maisonetteLeasehold
12 Navigation Street, Mountain Ash, CF45 4BWApr 2020£93,000TerracedFreehold
24 Navigation Street, Mountain Ash, CF45 4BWFeb 2020£158,000Semi-detachedFreehold
28 Navigation Street, Mountain Ash, CF45 4BWDec 2018£59,950TerracedLeasehold
28 Navigation Street, Mountain Ash, CF45 4BWDec 2016£43,000TerracedLeasehold
15 Navigation Street, Mountain Ash, CF45 4BWAug 2012£49,000TerracedFreehold
3 Navigation Street, Mountain Ash, CF45 4BWMay 2012£87,000TerracedFreehold
13 Navigation Street, Mountain Ash, CF45 4BWJun 2011£76,895TerracedFreehold
19 Navigation Street, Mountain Ash, CF45 4BWJul 2007£71,000TerracedFreehold
28 Navigation Street, Mountain Ash, CF45 4BWAug 2002£24,000TerracedLeasehold
28 Navigation Street, Mountain Ash, CF45 4BWMay 1998£19,500TerracedLeasehold
13 Navigation Street, Mountain Ash, CF45 4BWJan 1996£17,000TerracedFreehold
All street records →

The land

Radon: Testing advised

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.

BGS / UKHSA · Dec 2022

+ 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 ↑

The building

EPC E

Poor insulation or an EPC E–G rating can mean higher heating bills.

Read the full certificate and ask about insulation and heating costs.

EPC · Feb 2014

Floor area
33 m²
Potential EPC band
C
Age band
England and Wales: 1976-1982
Walls (certificate wording)
Cavity wall, as built, partial insulation (assumed)
Roof (certificate wording)
(another dwelling above)
Windows (certificate wording)
Fully double glazed
Heating (certificate wording)
Boiler and radiators, mains gas
Building height
Unavailable

EPC · Feb 2014

Living

Road noise: About 53 dB

Outdoor noise can affect sleep and enjoyment of the home.

Visit at busy times and check the rooms with the windows open.

Welsh Government · 2021

Rail noise: No published level here

Outdoor noise can affect sleep and enjoyment of the home.

Visit at busy times and check the rooms with the windows open.

Welsh Government · 2021

Broadband in the area

Postcode residential gigabit coverage: 100%

Full fibre in the local authority: 82.6%

Ofcom · Jan 2026

Schools nearby

Unavailable

DfE GIAS · Nov 2026 · Ofsted · Sep 2026

Area context

Deprivation decile (1 is most deprived within its nation): 3 · Wales 2025

Recorded police incidents: 181

CF45 4BW →

Before you offer

Viewing checklist

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Lease documents

Needs document · Saved privately on this device

Next steps

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 →

Questions for the agent

Questions for your surveyor and conveyancer

Ask the surveyor

Which survey level covers this home’s condition, damp, cracks and any alterations?

  • Radon: Ask for existing test results or use a 3-month test kit, about £50.
  • Energy certificate: Read the full certificate and ask about insulation and heating costs.

Ask the conveyancer

Which title, drainage and local searches are needed for this address?

  • Leasehold: Ask the agent for the lease, remaining term, charges and planned works.
Sources and licences

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.

INSPIRE conditions · Sources and licences

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