Cardiff’s rental market has moved decisively in 2026. With city-wide rental growth of 7.3% recorded across 2025 and average rents now sitting between £1,250 and £1,320 per calendar month, landlords across the Welsh capital are operating in one of the most active letting markets in the UK. Whether you own a single investment flat in Cardiff Bay or a portfolio of houses across the northern suburbs, understanding exactly where rents stand — and why — is essential to making informed decisions this year.
At Martin & Co Cardiff, we work with landlords at every level of the market every day. Here is our up-to-date snapshot of what contract holders are paying across Cardiff’s key postcodes in 2026.
Why Cardiff’s rental market is outperforming expectations
Demand for rental property in Cardiff has been driven by a combination of factors that show no sign of easing. The city’s growing student and graduate population, sustained by Cardiff University and Cardiff Metropolitan University, continues to underpin strong demand in inner-city postcodes.
Beyond students, Cardiff’s expanding professional workforce — particularly in the financial services, life sciences, and public sectors — is driving demand for quality, well-managed rental homes across a broader range of neighbourhoods. With house prices remaining elevated and mortgage affordability stretched, more households are choosing to rent for longer, further tightening supply.
The result is a market where well-presented, compliantly managed properties are letting quickly and achieving strong rents.
Average rents by neighbourhood in 2026
CF10 — city centre and Cardiff Bay
CF10 remains Cardiff’s most sought-after postcode for contract holders seeking city-centre convenience. Average rents for a two-bedroom apartment in Cardiff Bay are now reaching £1,400 to £1,550 per calendar month in 2026, reflecting sustained demand from professionals working in the Bay’s financial and media sectors.
The continued regeneration of Cardiff Bay — including developments around Roald Dahl Plass and the ongoing Bute Street corridor improvements — continues to attract contract holders who want modern, well-connected homes. Void periods in this postcode remain among the lowest across the city, typically under two weeks for well-priced properties.
CF11 — canton and Pontcanna
CF11 is arguably Cardiff’s most consistently popular postcode for longer-term contract holders. Canton and Pontcanna attract a mix of young professionals, families, and creatives drawn to the area’s independent café culture, proximity to Pontcanna Fields, and excellent transport links into the city centre.
Average rents for a two-bedroom property in CF11 currently sit at around £1,250 to £1,350 per calendar month. Demand consistently outstrips supply here, and properties managed by experienced agents like Martin & Co Cardiff tend to attract multiple enquiries within days of listing.
CF24 — cathays and Roath
CF24 is the heartbeat of Cardiff’s student and young professional rental market. Cathays, in particular, remains one of the most densely rented postcodes in Wales, with contract holders drawn by proximity to Cardiff University and the lively Roath café and arts scene.
Average rents in CF24 for a three-bedroom house range from £1,100 to £1,250 per calendar month in 2026, with smaller one and two-bedroom flats in Roath achieving between £850 and £1,050. Landlords with HMO-registered properties in Cathays are seeing particularly strong yields, given the consistent demand from student contract holders.
CF14 — whitchurch and Rhiwbina
CF14 offers a different profile — one that appeals to family contract holders and those seeking the quieter, leafy suburbs of north Cardiff. Whitchurch and Rhiwbina are popular with professionals relocating to Cardiff who want good schools, green space, and easy access to the A470.
Average rents for a three-bedroom semi-detached house in CF14 are now typically between £1,300 and £1,450 per calendar month. Demand in this postcode has grown steadily as more families opt to rent rather than buy, and void periods remain low for well-presented family homes.
The compliance landscape Cardiff landlords must navigate in 2026
Operating as a landlord in Wales carries specific legal obligations that go beyond those in England. The Renting Homes (Wales) Act 2016 fundamentally changed how residential tenancies work in Wales, replacing assured shorthold tenancies with occupation contracts and establishing clear rights and responsibilities for both landlords and contract holders.
All landlords in Wales are also required to be registered and licensed through Rent Smart Wales. Failure to comply can result in significant penalties and restrictions on your ability to let property. If you instruct an agent to manage your property, that agent must also hold a valid Rent Smart Wales licence — something Martin & Co Cardiff maintains as standard.
Making Tax Digital is now in force
From 2026, landlords with qualifying income are required to comply with Making Tax Digital (MTD) for income tax, keeping digital records and submitting quarterly updates to HMRC using compatible software.
If you are affected by the new rules and have not yet reviewed your record-keeping processes, it is important to ensure you are using MTD-compatible software and meeting your reporting obligations. For landlords managing multiple properties or growing portfolios, staying compliant can help reduce the risk of errors and penalties.
If you’re unsure how Making Tax Digital applies to your circumstances, consider seeking advice from a qualified accountant or tax adviser to ensure your rental income reporting meets HMRC’s current requirements.
What this means for Cardiff landlords in 2026
The data is clear: Cardiff’s rental market is performing strongly, rents are rising, and demand across all key postcodes remains robust. For landlords, this presents a genuine opportunity — but only if properties are priced accurately, managed compliantly, and presented well to attract quality contract holders.
Overpricing in a competitive market can lead to extended void periods that quickly erode yield gains. Underpricing leaves money on the table. Getting the balance right requires current, localised market intelligence — exactly the kind of insight that Martin & Co Cardiff provides as standard.
Over 30 years of lettings expertise, a network that lets 370 new properties every week, and a dedicated local team who understand Cardiff’s neighbourhoods inside out, we help landlords make confident, informed decisions at every stage of their property journey.
Our lettings services for Cardiff landlords
We offer a range of flexible lettings services to suit landlords of all sizes — from single-property owners to multi-site portfolio investors. Whether you need a full premium managed service with rent and legal protection; a managed service with 24/7 maintenance and compliance oversight; rent collection; or a straightforward tenant find, we tailor our approach to your goals.
All our services include state-of-the-art contract holder background checks, government-approved tenancy deposit protection, client money protection insurance, and transparent fees with no hidden costs. We also provide guaranteed rental income options and 24/7 repair support, so you are never left managing an emergency alone.
Find out what your Cardiff property could achieve in 2026
If you are a landlord in Cardiff — whether you own one property or a substantial portfolio — understanding your current rental position is the essential first step. Rents have moved significantly over the past 12 months, and a professional market appraisal will give you an accurate, up-to-date picture of what your property could achieve right now.
Book a free, no-obligation rental valuation with Martin & Co., Cardiff, today. Our local team will assess your property against current market conditions across CF10, CF11, CF24, CF14 and beyond, giving you the clarity you need to make the right decision — without any fuss.
To book your free valuation, visit our website or contact the Martin & Co Cardiff branch directly. We are here to help you get the most from your Cardiff rental property in 2026.
