The upgrades that most reliably increase rent are kitchens, bathrooms, heating and energy efficiency, in that order. Cosmetic work rarely moves the asking figure on its own. It shortens voids, which is a different benefit and often a larger one.

That distinction matters more than most refurbishment advice admits. A landlord asking “what will let me charge more” and a landlord asking “what will let faster” are asking two different questions, and the answers only partly overlap.

Which improvements add the most rent?

Kitchens and bathrooms carry the most weight in a tenant’s decision, followed by heating and insulation, then storage and layout. Decoration, flooring and garden tidying rarely raise the asking rent, but they materially affect how quickly a property lets and how many viewings convert.

The reason is straightforward. Tenants viewing three similar flats at similar rents will choose on the kitchen and the bathroom, because those are the rooms they cannot change and will use every day.

A useful hierarchy for planning a rental refurbishment:

The outlier is adding a room. Moving a property from two bedrooms to three, or creating a genuine second reception, changes the search bracket it appears in. Tenants filter by bedroom count before anything else, so an extra room does not just raise the rent, it changes the pool of people who ever see the listing.

How much does a rental refurbishment cost in 2026?

A rental kitchen refit typically costs £6,000 to £14,000 including fitting. A bathroom refit commonly runs £4,000 to £9,000. Full redecoration with new flooring throughout a two-bedroom property usually costs £3,000 to £6,000. A loft conversion adding a bedroom typically costs £50,000 to £95,000.

For context on the wider market, Checkatrade puts the UK average total cost of a new kitchen at around £10,550, with installation alone averaging roughly £3,500 [1].

Rental specifications usually sit below owner-occupier specifications on finish, and above them on durability. That is not cost cutting. It is a different brief.

How do you calculate the return on a rental refurbishment?

Divide the annual rent increase by the total refurbishment cost to get a simple payback percentage, then add the value of any void reduction. A £9,000 kitchen that supports an extra £75 a month returns £900 a year, giving a ten-year payback before void savings are counted.

Ten years sounds slow until you factor in the second and third effects. The refurbished property lets faster, attracts a longer-staying tenant, and generates fewer maintenance callouts across the same period.

According to ONS data published in July 2026, average UK private rent stood at £1,388 in June 2026, up 3.3% over twelve months. In England the average was £1,446, and in London £2,302 [2].

Against a London average of £2,302 a month, a 4% rent uplift is £92 a month, or £1,104 a year. Against the North East average of £781, the same percentage is £31 a month [2]. The identical kitchen has a very different payback depending on the postcode it sits in, which is why national refurbishment advice so often misleads.

Does reducing void periods justify the spend on its own?

Often, yes. Void periods are the most underrated line in a landlord’s numbers because the loss is invisible on a spreadsheet that only tracks rent received.

Research published by Simply Business in June 2026 put the average void period across England at 24 days, with landlords losing around £1,135 each time a property sits empty [3].

The Goodlord Rental Index for January 2026, published in February 2026, recorded English voids rising from 23 days to 26 days month on month, with the East of England moving from 21 to 32 days [4].

Cut a 26-day void to 12 days twice over a five-year hold and you have recovered a meaningful share of a bathroom refit without touching the rent at all. Decoration and flooring, which do little for the asking figure, do a great deal here.

Should you refurbish between tenancies or during a tenancy?

Refurbish between tenancies wherever the work affects a kitchen, bathroom or heating system. Work during a tenancy should be limited to jobs that do not remove essential facilities, and tenants must be given proper notice and, where disruption is significant, a rent adjustment.

The temptation is to squeeze works into an occupied property to avoid a void. It usually costs more than it saves. Trades work slower around occupants and belongings, jobs get split across multiple visits, and the finish is rarely as clean.

A better approach is to plan the works before serving or accepting notice, so contractors are booked for the week the property empties rather than the month after.

Where do landlords most often overspend?

Four patterns come up repeatedly.

Specifying to owner-occupier taste. Stone worktops, feature lighting and designer taps do not raise rent in most of the market. Durable laminate, good ironmongery and sensible storage do more for less.

Refurbishing past the street ceiling. Every road and property type has a rent above which tenants will simply choose elsewhere. Check what comparable properties are actually achieving, not what they are advertised at.

Replacing rather than repairing. A sound kitchen carcass with tired doors is a respray and new handles, not a rip-out. That is frequently a £1,200 job standing in for an £9,000 one.

Ignoring the sequencing. Decorating before rewiring, or fitting flooring before a boiler swap, means paying for the same work twice.

How does the 2030 EPC deadline change refurbishment planning?

With minimum energy efficiency standards for the private rented sector moving towards EPC C by 2030, any refurbishment planned in the meantime should carry the fabric and heating work with it rather than deferring it to a separate programme later.

The logic is purely economic. Insulation, glazing and heating upgrades are cheapest when floors are already up, walls are already open and scaffolding is already standing. Doing them as a standalone project in 2029 means paying twice for access.

Landlords planning a kitchen or bathroom refit in the next two years should be asking their contractor what energy efficiency work can reasonably be folded into the same visit.

What does the trade see landlords getting wrong?

The gap between owner-occupier and landlord refurbishment is one that contractors notice quickly.

“The brief from a landlord is genuinely different, and the good ones know it,” says Sam Heague, Head of Brand at Beams, a London design-and-build firm. “An owner-occupier is buying something they’ll live with. A landlord is buying something that has to survive ten years of turnover and still show well on a Tuesday evening viewing.”

“We only work in London, so I can’t speak for every regional market. But the mistake we see most often is spending the budget on the things a viewer notices in the first minute and skimping on the things that fail in year three. Get the boiler, the extraction and the ironmongery right and the decoration will look after itself.”

What should a landlord ask for in a refurbishment quote?

Ask for three written quotes priced against the same written specification, a stage-by-stage breakdown rather than a single figure, the number of trade days allowed, and written confirmation of whether VAT at 20% is included.

Two further questions separate contractors who have planned the job from those who have guessed at it.

Ask what happens to the price if something is found behind the wall, and ask how many days the property will be unlettable. A contractor who cannot answer the second question has not thought about your actual cost, which is rent, not invoice.

Hold 10% to 15% back as contingency. Older rental stock rarely gives up its surprises until the first floorboard comes up.

Frequently asked questions

Can I increase the rent immediately after a refurbishment?

Between tenancies, yes, subject to market evidence. Mid-tenancy increases must follow the correct statutory procedure and notice period, and must be to a level a tribunal would consider reasonable against comparable local properties.

Are rental refurbishment costs tax deductible?

Repairs and like-for-like replacements are generally deductible against rental income. Improvements and additions are usually treated as capital expenditure and set against capital gains on disposal instead. The distinction is fact-specific, so take advice from an accountant on any significant project.

Does a better EPC rating let a property faster?

Energy efficiency has become a more visible factor for tenants as running costs have risen, and it will become a compliance requirement regardless. Treat it as a floor to meet rather than a premium to chase.

How long should a rental kitchen last?

A well-specified rental kitchen should last ten to fifteen years across multiple tenancies. Doors, handles and worktops can be refreshed within that period at a fraction of a full replacement cost.

References

[1] Checkatrade, New Kitchen Cost guide, updated March 2026. Cited for the UK average total new kitchen cost of around £10,550 and average installation cost of roughly £3,500. checkatrade.com

[2] Office for National Statistics, Private rent and house prices UK, published July 2026 covering June 2026 data. Cited for the UK average private rent of £1,388 and 3.3% annual increase, the England average of £1,446, the London average of £2,302, and the North East average of £781. ons.gov.uk

[3] Simply Business, rental void period research, published 24 June 2026. Cited for the average English void period of 24 days and average landlord loss of £1,135 per void. simplybusiness.co.uk

[4] Goodlord Rental Index for January 2026, published 6 February 2026. Cited for English void periods rising from 23 to 26 days and the East of England moving from 21 to 32 days. goodlord.co

Cost figures in this article are typical ranges and should be treated as indicative. Actual prices vary by property, specification, location and contractor. Nothing here constitutes tax or legal advice. Always obtain written quotes and take professional advice on the tax treatment of refurbishment expenditure.