Rental yield is the rent a property earns in a year as a percentage of what it cost. On the latest official averages, a Cambridge home earns a gross yield of about 4.6%, rising to about 5.8% for flats. The landlords who do better than that rarely do it by charging more than the market will pay. They do it by buying at the right price, setting the right rent from day one, keeping empty periods short, controlling costs, staying compliant and getting the tax right.
This guide works through each of those levers in turn, with the rules that apply to private landlords in England since the Renters' Rights Act changes of 1 May 2026.
Gross yield is the annual rent divided by the price of the property, multiplied by 100. A flat bought for £300,000 and let at £1,450 a month (£17,400 a year) has a gross yield of 5.8%.
Net yield takes off the costs of owning and letting the property before you divide. It is the figure that tells you what the property actually returns, and it is the one to use when comparing properties or deciding whether an improvement is worth making.
Here is the same flat worked through. The costs below are assumptions for illustration only, not typical Cambridge figures, so use real quotes for your own property:
The gap between 5.8% and 3.4% is where most of the opportunity to improve a return lies.
Two official sources give a rough picture. HM Land Registry's UK House Price Index for July 2026 (published 16 September 2026) puts the average price in the Cambridge City Council area at £475,151, unchanged on a year earlier, and £439,573 in South Cambridgeshire (up 2.2%). The England average is £293,479. The ONS Price Index of Private Rents for August 2026 (released 16 September 2026) puts the average Cambridge rent at £1,805 a month, up 1.8% on a year earlier, and South Cambridgeshire at £1,408. The rent index covers both new and existing tenancies, so it is not a measure of asking rents on new lets.
Dividing a year's average rent by the average price gives these approximate gross yields for the Cambridge City Council area:
The same sum for South Cambridgeshire as a whole gives about 3.8%. Treat all of these as a guide only: the price averages are for homes sold and the rent averages are for homes let, which are not the same properties. They do show the pattern clearly, though. In these figures rents do not rise in step with prices, so the smaller, cheaper property types produce the higher yields. By bedroom count, the ONS puts average Cambridge rents at £1,256 for one bedroom, £1,613 for two, £1,907 for three and £2,656 for four or more.
Yield is only half of the return. Over the year to July 2026, the average Cambridge flat price fell 2.3% while terraced, semi-detached and detached prices rose by between 0.8% and 1.3%. A higher yield can come with weaker price growth, so weigh both. Our guide to spotting a property with investment potential covers how to appraise a purchase in more detail.
The price you pay fixes the bottom half of the yield sum for as long as you own the property, so this is the most powerful lever you have.
If you will own more than one home after the purchase, you will usually pay Stamp Duty Land Tax at 5% above the standard rates. On a £300,000 purchase that means £20,000 instead of £5,000 at the standard rates. Include it, along with legal and survey fees, in the cost you measure your yield against.
Flats give the highest gross yields in Cambridge. If a flat is leasehold, check the service charge, ground rent and any planned major works before you buy, because they come straight off your net yield. Houses yield less on paper but, on the year to July 2026 figures, held their value better.
A run-down property can look like a bargain, but HMRC says that if you buy a property that is not fit to let, or pay a substantially reduced price because of its state, work to put it into a fit state for letting is unlikely to count as a repair. It is capital spending, which you cannot deduct from rental income, although you should keep the records because capital costs may be set against Capital Gains Tax when you sell.
Letting by the room can raise the total rent, but it brings more management and extra rules. In the Cambridge City Council area, a mandatory HMO licence is needed where five or more people forming two or more households share a property, or occupy a flat in a purpose-built block of up to two flats. For applications due between 1 April 2026 and 31 March 2027 the licence fee is £1,133 (£1,000 if you renew at least eight weeks before your licence expires), and an HMO with seven or more tenants needs planning and building control permission.
If you plan to let a home you already own and it has a mortgage, you must get your lender's permission first.
The Renters' Rights Act has made the starting rent more important than it used to be. Since 1 May 2026 in England:
In practice that means researching the rent carefully before you advertise. Compare similar properties that are currently advertised and recently let nearby, adjusting for size, condition, outside space, parking and energy rating, and ask a local letting agent who sees what tenants are actually paying. Pitch too high and you lose weeks to an empty property; pitch too low and you are locked in for at least a year. Once a tenancy is running, review the rent each year against the market rather than letting it drift a long way behind and then asking for a large jump that a tenant may challenge.
Every month a property stands empty costs one twelfth of the year's rent, about 8.3% of the gross income, and you still have to cover the mortgage and bills. You will usually have to pay council tax on an empty home too. Since 1 May 2026 a tenant can end their tenancy by giving 2 months' notice, so keeping good tenants matters more than ever.
Every pound saved on costs goes straight to net yield. The main areas to review are:
A single fine or a failed possession claim can cost more than a year's profit. The core duties for private landlords in England include:
Under the Renters' Rights Act, councils also have new investigation powers, and the maximum rent repayment order a tribunal can make has risen from 1 to 2 years' rent. Our letting and management service for Cambridge landlords takes care of these checks if you would rather not manage them yourself.
Tax can take a large share of a landlord's return, and the rules for individual landlords are changing.
Furnishing a property does not automatically raise the yield. The ONS rent index does not split furnished and unfurnished homes, so there is no official figure for a furnished premium in Cambridge. Furniture is an up-front cost that you cannot deduct from rental income when you first buy it, although replacement of domestic items relief can cover like-for-like replacements later. Upholstered furniture you provide must also meet the furniture fire safety regulations. Our guide to renting out a Cambridge property furnished or unfurnished covers the trade-offs in detail.
Managing a let yourself saves fees, which can be one of the larger running costs. In return you take on pricing, marketing, referencing, deposit protection, safety checks, repairs, rent reviews and keeping up with changing law. A good agent earns its fee by setting the rent accurately, cutting void periods and avoiding compliance mistakes, and letting and management fees are an allowable expense for tax. If you are weighing up a purchase or want a second opinion on the return from a property you already own, our lettings team offers property investment advice in Cambridge.
This article is general information, not tax or legal advice. Speak to a tax adviser or solicitor about your own circumstances.
On official averages, the gross yield is about 4.6% across all Cambridge homes and about 5.8% for flats, falling to about 2.9% for detached houses. A good yield is one that leaves a reasonable net return after your own costs, finance and tax, so compare net figures and consider likely price growth too.
For gross yield, multiply the monthly rent by 12, divide by the price and multiply by 100. For net yield, take your annual running costs, including an allowance for empty periods, off the rent before dividing, and use the full purchase cost including Stamp Duty Land Tax.
On average gross yield, yes: about 5.8% for flats against 2.9% to 4.5% for houses. But flats usually carry service charges and ground rent that reduce the net yield, and the average Cambridge flat price fell 2.3% in the year to July 2026 while house prices rose slightly.
In England, once a year and not in the first 12 months of a new tenancy. You must use Form 4A and give at least 2 months' notice, and the tenant can challenge an increase above the open market rent.
Individual landlords get a tax reduction worth 20% of their mortgage interest, subject to limits, rather than deducting it from rent. From 6 April 2027 the reduction will be given at 22%, the new property basic rate. Companies are not affected by the restriction.
Review the rent against the market each year, keep good tenants so voids are rare, plan maintenance and energy upgrades between tenancies, check your mortgage well before any fixed rate ends, and make sure you claim every allowable expense.
