The Serviced Accommodation Yield Trap: When Rental Forecasts Conceal an Overpriced, Underperforming Property
Unrealistic, inflated Airbnb and booking-platform forecasts can make an overvalued, poor performing property appear financially sound. Jonathan Stephens examines the assumptions behind serviced-accommodation projections, the costs investors can overlook and why conventional rental income should support the purchase before any short-stay premium is applied.
By Jonathan Stephens, Managing Director, SmartLandlord
Published 30 September 2026
SmartLandlord is seeing a growing concern in the market. Developers, property distributors and agents selling underperforming, overpriced investor-led new-build stock are increasingly turning to inflated serviced-accommodation forecasts to make the numbers appear to work.
A property that does not produce an acceptable return under a conventional tenancy can be presented as financially attractive once the sales appraisal switches to nightly bookings, higher rates and sustained occupancy. The purchase price remains unchanged, even where it is already unsupported by local rental evidence and comparable sales. Only the income assumptions have changed.
These projections can be misleading when they are not supported by actual local performance, realistic operating costs and the volume of competing short-stay accommodation. The risk is greatest where numerous investors are sold similar apartments within the same development under the same management strategy.
This article examines how occupancy, nightly rates, operating costs and competing supply affect the income an investor retains. It also considers the uncertainty of a new listing, the evidence required to support a forecast and the consequences if the management arrangement does not perform as expected.
Serviced accommodation can generate attractive returns where the location, purchase price and operating performance support the model. It becomes a concern when projected short-stay income is the only reason an otherwise unviable acquisition appears profitable.
SmartLandlord strongly advises that an investment should generate acceptable positive cash flow under both a conventional residential tenancy and a serviced-accommodation model. We do not advise buying a property where the investment depends entirely on serviced accommodation performing as forecast.
Confirming that the conventional rental value also meets the investor’s minimum yield requirement provides an alternative income strategy if the short-stay model underperforms, costs increase or the management arrangement ends. It substantially reduces the risk of relying on a single, unproven operating model.
Higher purchase prices can leave conventional yields compressed
SmartLandlord has seen this practice most often in investor-led apartment markets in Manchester, Birmingham, Liverpool and Leeds. Each city contains viable investments, but years of development, investor demand and rising apartment values have left some new-build stock priced at a level conventional rental income cannot support.
Rental demand alone does not resolve that calculation. A property can let readily yet still produce inadequate income after financing and ownership costs at the price being charged.
For illustration, a £300,000 apartment renting for £1,250 a month produces annual rent of £15,000, equivalent to a 5% gross yield. Before mortgage interest, service charges, management, maintenance, insurance, and void periods are deducted, the retained income may be modest.
The same apartment can be marketed using an unsupported or unrealistic serviced-accommodation forecast of £30,000 in annual booking revenue and described as offering a 10% return. That is misleading. £30,000 is gross revenue, not the investor’s net yield.
Cleaning, utilities, broadband, platform fees, management, linen, guest support, replacement furnishings, insurance, service charges, finance and tax must all be deducted. A fall in the projected nightly rate or occupancy can further reduce income substantially.
The purchase price has not changed, and neither has the underlying conventional rental value. The property only appears more attractive because the sales appraisal relies on a higher-risk short-stay forecast.
Our analysis of new-build apartment investment risks examines acquisition prices, rental performance and subsequent resale evidence.
SmartLandlord View
“We are seeing unrealistic serviced-accommodation forecasts used to justify purchase prices that conventional rents do not support. A headline revenue figure can make an overpriced apartment appear viable, but it does not establish the income an investor will retain after the full cost of operating it. The property should produce acceptable positive cash flow under both a conventional tenancy and a serviced-accommodation model based on accurate nightly rates and occupancy assumptions. If both models stack up, the investor has substantially reduced their risk should the short-stay strategy fail. If the purchase depends entirely on ambitious nightly rates, occupancy and a management company’s performance, SmartLandlord would advise against proceeding.”
Jonathan Stephens, Managing Director, SmartLandlord
Small changes in bookings can substantially reduce revenue
A serviced-accommodation forecast depends on the nightly rate achieved, the number of nights available and the proportion of those nights booked.
The assumptions are interdependent. Raising the nightly rate may reduce bookings. Achieving strong occupancy through discounting may reduce average revenue. A forecast built on both a premium rate and high occupancy needs particularly strong evidence.
The illustration below shows how quickly annual booking revenue can change.
| Operating assumption | Sales projection | Lower-performance scenario |
| Average nightly accommodation rate | £120 | £100 |
| Available nights | 365 | 365 |
| Occupancy | 80% | 60% |
| Annual accommodation revenue | £35,040 | £21,900 |
Illustration only. These are not reported market averages. Figures exclude cleaning income, operating costs, finance and tax.
The lower-performance scenario produces £13,140 less in annual revenue, a 37.5% reduction. Some variable costs may fall, but mortgage payments, service charges and many other ownership costs remain unchanged.
A proper appraisal should show the monthly income retained at lower nightly rates and occupancy levels. A single annual booking-revenue figure does not establish whether the investor can absorb a weaker season or prolonged reduction in demand.
Independent data still needs careful interpretation
Serviced-accommodation data is only useful when the investor understands what it measures and whether the properties being compared are genuinely similar.
AirDNA calculates occupancy as the proportion of booked nights to nights recorded as available. It does not necessarily measure bookings across every night of the year. A property reporting 80% occupancy over 250 available nights has secured 200 bookings, not 292.
Its average daily rate calculation includes cleaning fees. An appraisal that then adds separate cleaning income risks double-counting the same revenue.
Comparable properties should match the proposed apartment’s location, size, specification, guest capacity and amenities. Parking, review history, minimum-stay rules and the operator’s existing booking profile can all influence performance.
Airbnb and Booking.com listings can identify competing accommodation and advertised nightly rates. They do not prove the income achieved over a year. An unavailable date may be an owner-blocked night rather than a paid booking, and a premium rate during an event weekend says little about ordinary midweek demand.
Gross booking revenue is not the investor’s return
A serviced-accommodation sales forecast often leads with booking revenue. The investor’s return is the income remaining after all operating costs have been paid.
Utilities, broadband, cleaning, linen, consumables, guest support and replacement furnishings are all part of the model. So are management, insurance, maintenance, service charges and the applicable council tax or business rates.
Booking-platform charges must reflect the actual arrangement. Airbnb’s published fee guidance describes different fee structures and a transition towards a single host fee. Using an outdated platform-fee assumption can overstate the income retained by the owner.
Management fees must be calculated on the correct revenue basis, including VAT where payable and any separate service charges. Cleaning income collected from guests should be reconciled directly with the cost of cleaning each stay.
Tax assumptions also require specialist review. HMRC confirms that holiday accommodation remains standard-rated for VAT, subject to the relevant registration and accounting rules. The abolition of the furnished holiday lettings tax regime did not remove that distinction.
The comparison with conventional letting should show net operating income, financing costs and the cash retained. It must also include the cost of furnishing, launching and maintaining the short-stay operation.
A new listing needs its own first-year forecast
A newly furnished apartment does not begin with the reviews, booking history or repeat guests of an established listing. It must build visibility and guest confidence from the outset.
Initial performance depends on photography, pricing, guest communication and the manager’s ability to secure bookings. Discounts may be needed to generate the first reviews. Furnishing delays, late launch dates or missing a key seasonal period can materially affect first-year income.
SmartLandlord applies a conservative adjustment to first-year projections rather than assuming that a new listing will immediately achieve the performance of an established comparable property.
The appraisal should separate launch costs, expected first-year revenue and the income anticipated once the operation is established. It should also identify the cash reserve required if bookings build more slowly than forecast.
An experienced manager can reduce execution risk, but its projections should still be supported by evidence from genuinely comparable properties it has operated.
Investors within the same development can become direct competitors
A development promoted around serviced accommodation can create the very supply pressure that undermines its forecasts.
If 50 or 100 near-identical apartments launch on Airbnb and Booking.com at roughly the same time, they compete for the same guests. Similar layouts, furnishings and locations leave price, discounts and availability as the principal points of difference.
A forecast may have been prepared before this additional stock entered the market. Existing visitor demand does not prove that every apartment can achieve the projected nightly rate and occupancy once the development is fully operational.
Investors should establish how many apartments within the scheme are expected to operate as short-stay accommodation, when they will launch and whether the manager acts for multiple owners in the development. They should also ask how bookings are allocated across that portfolio.
Conventional letting should support the acquisition
SmartLandlord’s starting requirement is that an investment should generate acceptable positive cash flow under a conventional residential tenancy, based on independently evidenced rent, suitable finance and the full cost of ownership.
The conventional model should meet the investor’s minimum return requirement. The property should not merely avoid a monthly loss.
Serviced accommodation can then be assessed as an additional strategy using realistic nightly rates, occupancy and operating costs. If both models work, the investor has an alternative income stream if the short-stay strategy underperforms in its first year, demand weakens or the management arrangement ends.
Switching to conventional letting may involve a void, additional costs, and changes to furnishing or financing. These must be included in the appraisal from the outset.
Both uses must be permitted. Conventional letting and short-stay accommodation should be checked against the lease, mortgage terms, insurance and applicable planning requirements. The Government’s guidance on self-catering accommodation in England provides a starting point. Requirements differ across the UK.
Where conventional rent falls materially short of the investor’s minimum requirements, the purchase depends entirely on the successful operation of short stays. SmartLandlord would advise against proceeding on that basis.
Additional operating risk requires an additional net return
Serviced accommodation involves more work, more variable costs and greater reliance on the manager than conventional letting. The additional risk should be reflected in the income retained by the investor.
SmartLandlord generally seeks serviced accommodation to generate approximately 5–10% more annual net income than conventional letting, after operating and financing costs but before personal or company tax.
This is SmartLandlord’s internal assessment threshold. It is not an industry standard and does not mean an additional 5-10 percentage points of rental yield.
If conventional letting yields £10,000 per year on this basis, the serviced-accommodation model should yield approximately £10,500-£11,000 after accounting for its additional costs. Furnishing and launch expenditures must also be assessed against the committed capital.
The projected increase must be supported by achievable nightly rates, realistic occupancy and a complete allowance for operating costs. The appraisal should show how much of the additional income remains if bookings fall or expenditure rises.
The management agreement should set out its fee basis, VAT, additional charges, minimum term and termination rights. Investors also need clear arrangements for transferring future bookings and operational information if they replace an underperforming manager.
The SmartLandlord position
Investors should require independent evidence of the purchase price, conventional rent, and serviced-accommodation forecasts before committing capital.
The property should meet the investor’s required return under both management strategies. Where the advertised outcome depends on unsupported rates, ambitious occupancy or assumptions the seller or manager cannot substantiate, SmartLandlord would advise against proceeding.
SmartLandlord
SmartLandlord helps investors assess purchase prices, conventional and short-stay rental performance, finance and management requirements throughout ownership.
Contact SmartLandlord to discuss a proposed investment or independently review the assumptions supporting its projected return.
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Disclaimer: This content is provided for general information and market commentary only and does not constitute financial, investment or tax advice. Property investment carries risk, and property values and rental income can go down as well as up. Past performance is not a reliable indicator of future results, and any forecasts or projected returns are illustrative only. Investors should conduct their own due diligence and seek independent professional advice before making investment decisions.
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