Browse 6 rental homes to rent in Old St. Mellons from local letting agents.
Mellons from local agents. One bed apartments provide a separate bedroom alongside distinct living space, bathroom, and kitchen areas. Properties in Old St. Mellons are available in various building types including mansion blocks, contemporary developments, and house conversions.
The sold-market backdrop tells you a lot about what landlords are likely to hold here. homedata.co.uk shows detached homes averaging £451,986, £488,820, and £499,705 across the local data points, while semi-detached homes sit at £302,894 and £289,580. Terraced homes are lower at £232,081 and £214,020, and flats average £159,571. That spread points to a neighbourhood where larger family houses set the tone, but smaller homes still play an important role.
Semi-detached homes are the most common type of property sold, accounting for 35.93% of sales across the past two years. About 77.06% of local transactions have fallen between £200,000 and £300,000, which suggests good demand in the mid-market bracket. Roughly 100 properties sold in the last year, up by 13.04%, so the market has stayed active rather than quiet. Postcode-level movement can differ sharply, with CF3 6WA down 7% on the year, CF3 6AF up 20% on its 2022 peak, and CF3 6YA down 22% on its 2023 peak.

Old St. Mellons feels more like a settled village suburb than a dense urban district, which is a big part of its appeal for renters. The housing mix leans toward family-sized homes, and the sales data backs that up with semi-detached properties taking the largest share of transactions. That gives the area a practical, neighbourly look, with streets that suit people who want a bit more space than central Cardiff usually offers. It also means the local rental market is likely to favour homes with gardens, parking, and sensible layouts.
Daily life here is shaped by east Cardiff convenience rather than nightlife or big-ticket city-centre living. Shops, services, and schools are close enough for routine errands, while the wider Cardiff and Newport corridor remains within reach for work and weekend plans. Because the postcode covers a wide price spread, Old St. Mellons can appeal to different budgets, from flats around the £159,571 level in the sold market to detached homes near £500,000. That mix makes the area useful for first-time renters, growing families, and anyone who wants a calmer base without leaving Cardiff behind.

The research pack for this page does not include verified school-place figures for the exact Old St. Mellons boundary, so families should treat catchment checks as part of the viewing process. Cardiff Council admissions can change street by street, especially where a village edge meets a broader Cardiff suburb. That makes it sensible to ask the agent which school catchments apply before you commit to a tenancy. If school access matters to your move, short-list homes only after checking the latest admissions map and term-time travel route.
Welsh families usually want to check both primary and secondary options, plus any Welsh-medium route that suits the household. Because this is Cardiff, sixth-form and college choices also matter for older children, so it helps to look at the full education pathway rather than just the nearest primary school. Estyn reports are the key quality check in Wales, and they are worth reading alongside any catchment information. A good rental in Old St. Mellons is one that matches your school plan as well as your budget.
Renting near the right school can make the move smoother, but the best fit depends on your child’s age, your work schedule, and how long you expect to stay. If you need a long-term base, ask about after-school transport, breakfast clubs, and whether the home sits on an easier walking route. A property that looks ideal on price can be less attractive if the school run is awkward every morning. For that reason, our advice is to compare the home, the catchment, and the route to class before you apply.
Old St. Mellons is best thought of as a road-connected Cardiff location, which suits renters who commute across east Cardiff, toward the city centre, or out toward Newport. The village position makes car travel straightforward for many households, and that matters in a place where parking can be a real advantage. Bus services connect the area with the wider city network, so you are not cut off if you do not drive every day. Rail users usually look to nearby Cardiff stations rather than expecting a station on the doorstep.
For many movers, the biggest transport question is not just travel time but daily convenience. A home with easy access to main roads, bus stops, and sensible parking can be worth more than a slightly cheaper place with awkward access. Cyclists may find local journeys manageable, especially for shorter runs into nearby parts of Cardiff. If commuting is part of your decision, check peak-hour routes before you book a second viewing and think about how the route works in winter as well as summer.

Get a rental budget agreement in principle before you start viewing, then compare that figure with the kind of homes Old St. Mellons actually offers.
Look at the streets around the property, the parking situation, school routes, and how quickly you can reach the roads you use every week.
Focus on homes that fit your household size and commute, then ask about the age of the property, heating, and any ongoing maintenance.
Have references, ID, income evidence, and right-to-rent documents ready so you can apply without delay if the right place appears.
Check the deposit terms, fixed term length, break clauses, and any rules on pets, redecorating, or parking before you sign.
Review the inventory, photograph the condition of the home, and confirm meter readings so you are protected on day one.
Because we do not have verified flood, geology, or building-material data for this exact boundary, a property-specific check matters more than assumptions. Ask the agent whether the home has had any water ingress, damp repairs, or recurring maintenance issues, especially if it is older or sits lower than neighbouring streets. If you are renting a flat, find out who manages the building and whether any communal costs are already factored into the rent. Service-charge pressure on the landlord can still shape the asking price and the standard of upkeep.
Planning rules also deserve attention, particularly if the home sits in a newer estate, a converted building, or a street with strong local character. Conservation controls and listed-building restrictions are not verified in the research pack, so you should confirm them with the agent if you plan to hang signs, add satellite equipment, or make changes during the tenancy. Energy efficiency is another practical point, because heating costs can matter as much as the rent itself in a family-size house. A good Old St. Mellons rental should feel easy to manage, with enough storage, sensible parking, and a layout that fits daily life.
The research pack for this page does not give a verified average rent, so the safest guide is the sold-price backdrop. homedata.co.uk shows an average house price of about £332,358 in Old St. Mellons, with the wider CF3 postcode averaging £334,736. That usually points to stronger demand for well-kept family homes rather than very low-cost rentals. Check live asking rents on home.co.uk for the current market before you book a viewing.
Council tax is set through Cardiff Council, and the band depends on the property’s value and type rather than the village name alone. Flats and terraces are usually in lower bands than detached houses, but there is no single band that covers Old St. Mellons. The cleanest way to check is to ask the landlord or agent for the exact band before you apply. That avoids surprises once you move in and start budgeting monthly costs.
The research pack does not include verified school rankings for this exact boundary, so it is better to judge schools by catchment and current inspection reports. In Wales, Estyn is the key quality source, and Cardiff Council admissions will show which streets feed which schools. Families renting in Old St. Mellons should check primary, secondary, and Welsh-medium options before they commit to a tenancy. A home that fits the school plan can be worth more than a slightly cheaper one with a difficult route to class.
Old St. Mellons is reasonably well placed for everyday Cardiff commuting, especially if you also use main roads. Bus links connect the area with the wider city network, while rail users usually rely on nearby Cardiff stations rather than a local stop in the village itself. The location also works well for travel toward Newport and the east Cardiff corridor. For many renters, that makes it a practical choice if they balance car use with bus travel.
Yes, especially if you want a village-style setting with straightforward access to Cardiff. The local market is active, with about 100 properties sold in the past year and prices reported 9% above the previous year, which suggests steady demand. Semi-detached homes are the most common type sold, so the area tends to suit renters who want family space rather than a dense apartment block feel. If that sounds right for your household, Old St. Mellons is a strong place to shortlist.
For a rental, expect a deposit and your first month’s rent upfront, then any permitted holding or referencing costs that the landlord or agent spells out in the paperwork. Ask for a full breakdown before you pay anything so you know exactly what is due and when. If you later decide to buy in the area, the 2024-25 stamp duty thresholds are 0% up to £250,000, 5% from £250,000 to £925,000, 10% to £1.5 million, and 12% above that. First-time buyer relief is 0% up to £425,000 and 5% from £425,000 to £625,000.
Yes, and the sales data gives a good clue to the stock you are likely to see. Semi-detached homes account for the largest share of transactions, while detached homes sit at the higher end of the local market and flats offer a lower entry point. homedata.co.uk shows flats averaging £159,571 in the sold market, compared with detached values near £451,986 to £499,705. That variety usually translates into rental choice across different budgets and household sizes.
Start with location, parking, and how the property fits your commute or school run, then compare the condition of the house against the rent asked. A slightly higher rent can be fair if the home is better maintained, warmer, or easier to park at. You should also check whether the rent includes any maintenance or communal costs, especially in flats or newer estates. Our advice is to view at least two or three homes before deciding, so the local value becomes easier to judge.
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Most renters in Old St. Mellons will spend their money on upfront tenancy costs rather than on buying taxes. That usually means a security deposit, the first month’s rent, and any permitted holding or referencing charges set out by the agent. If the property is a flat, ask whether communal upkeep or parking arrangements affect the landlord’s costs, because that can feed into the rent you are offered. A clear cost breakdown before you commit will make the move far easier to plan.
If you are comparing renting with a possible future purchase, the 2024-25 stamp duty thresholds are useful context, even though they do not apply to tenants. The current rates are 0% up to £250,000, 5% from £250,000 to £925,000, 10% from £925,000 to £1.5 million, and 12% above £1.5 million. First-time buyer relief is 0% up to £425,000 and 5% from £425,000 to £625,000. Those figures matter because Old St. Mellons sits in a market where many homes fall into the £200,000-£300,000 band, so some renters may later decide to buy in the same area.
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This is an estimate only. Your actual budget may vary depending on interest rates, credit history, and personal circumstances. For an accurate affordability assessment, speak to one of our free mortgage advisors.
This calculator provides estimates for illustrative purposes only and does not constitute financial advice. Your home may be repossessed if you do not keep up repayments on your mortgage. Estimates based on 4.5% interest rate, repayment mortgage. Actual rates depend on your circumstances.
Homemove is a trading name of HM Haus Group Ltd (Company No. 13873779, registered in England & Wales). Homemove Mortgages Ltd (Company No. 15947693) is an Appointed Representative of TMG Direct Limited, trading as TMG Mortgage Network, which is authorised and regulated by the Financial Conduct Authority (FRN 786245). Homemove Mortgages Ltd is entered on the FCA Register as an Appointed Representative (FRN 1022429). You can check registrations at NewRegister or by calling 0800 111 6768.