How to Renovate a Rental Property for Better Returns
A rental renovation earns its money when it raises rent or occupancy by more than it costs, and when it lowers the bills that eat into your yield: damp, leaks, repairs and empty weeks. Start with what protects the building (waterproofing, plumbing, electrics), then spend on the rooms tenants judge first, the kitchen and bathroom, and finish with durable, easy-to-clean surfaces. Do it in that order, with paperwork in place, and a Torrevieja or Vega Baja flat is easier to let and cheaper to hold.
Key Takeaways
Fix the building before you style it. Damp, leaks and old wiring cost more than any cosmetic upgrade can earn back.
Kitchens and bathrooms are where landlords spend most. In a UK survey they were the improvements buy-to-let investors made most often, and the same logic holds on the Costa Blanca.
Judge each job by payback: extra rent or extra occupied weeks, against cost, with a target return set before you quote.
In Spain, check the energy certificate, the municipal works permit route and, for tourist lets, the licence rules before work starts.
If you live abroad, pick one contractor who manages all trades and sends dated photo updates.
Table of Contents
Decide what “better returns” means for your property
Returns come from three levers, and a renovation can move each one differently.
Higher rent. Tenants pay more for a modern kitchen, a walk-in shower, air conditioning and a clean finish.
Higher occupancy. Fewer void weeks, better reviews on holiday lets, longer tenancies on long lets.
Lower running costs. Fewer call-outs, no recurring leaks, less repainting, lower energy use.
Most owners chase the first lever and forget the third. A flat that needs a plumber every season is a worse investment than a plainer flat that never does. Before you ask for quotes, write down your lettings model, because it decides the specification.
Letting model | What tenants reward | Where to spend | Where to hold back |
Long-term residential let | Reliability, storage, low bills, quiet | Plumbing and electrics, windows and doors, air conditioning, fitted wardrobes, hard-wearing flooring | Designer fittings that tenants will not notice |
Holiday or short-term let | Photos, comfort, cool interiors, a good bathroom | Bathroom, kitchen, lighting, terrace, air conditioning, interior design | Anything fragile or hard to clean between guests |
Renovate to resell | First impression, clean layout, no visible defects | Paint, floors, bathroom, kitchen, fixing damp | Layout changes that the next buyer may reverse |
Set a budget rule and a payback target
Investors use simple screens to stop a renovation spiralling. One US multifamily investor quoted by REBusinessOnline treats a renovation as worthwhile when it returns 20 to 30 percent on the money spent. That figure comes from American apartment blocks, so treat it as a way of thinking rather than a Spanish benchmark. The method travels well:
Estimate the extra monthly rent, or extra occupied nights, the work will realistically earn.
Multiply by twelve to get the annual gain.
Divide by the total cost, including contingency and fees.
Compare the result with what the same money would earn elsewhere.
A worked example with invented round numbers, only to show the arithmetic: if a bathroom refit costs €6,000 and lets you charge €60 more per month, the annual gain is €720, a 12 percent return before any savings on repairs or void weeks. If the same refit also removes a recurring leak that cost you two call-outs a year, the real return is higher. If it changes nothing a tenant would pay for, it is a cost, not an investment.
Pro Tip: Ask for the quote in phases (structure and installations, wet rooms, finishes). A phased quote lets you stop after the phase that pays and postpone the one that does not.
Start with what protects the asset
The least glamorous work usually has the best return, because it prevents the losses that wipe out rent.
Damp, waterproofing and façades
On the coast, salt air and driven rain attack terraces, roofs and façades. A leaking terrace slab becomes a damp ceiling for the neighbour below, a dispute with the community of owners and a flat that cannot be let for weeks. Roof and terrace impermeabilisation, façade repair and sealed joints belong at the top of the list. Our guide to coastal home renovation and the CTE moisture details to demand explains what to ask a builder to specify, from cavity ventilation to the treatment of thresholds and openings.
Plumbing and water heating
Old supply pipes, weeping joints and tired water heaters are the most common causes of emergency call-outs in rented flats. Replacing a failing electric water heater, renewing taps and sanitary ware, and tracing hidden leaks are modest jobs with a direct effect on tenant satisfaction. Our plumbing service covers installations, leak detection and repair, and 24/7 emergency repairs.
Electrics
Outdated consumer units, too few sockets and overloaded circuits are safety issues and a letting objection at once. Tenants now run air conditioning, induction hobs, washing machines and chargers. If the installation is original, have it inspected and upgraded before you refit any room. Our electrical installations and repairs page sets out what we handle.
Kitchens and bathrooms: where the rent is won
The Nationwide private rented sector report found that kitchen and bathroom renovations were the most popular improvements among buy-to-let investors who had made changes in the previous five years. It surveys UK landlords, not Spanish ones, but it matches what tenants and holiday guests photograph and complain about first.
Bathroom
Replace a tired bath with a walk-in shower where the room allows. It is easier to clean, safer for older tenants and more appealing to most guests.
Use large-format, low-joint tiling and a proper waterproofing layer behind it. Grout lines are where mould starts.
Choose a screen, mixer and drain that are standard and easy to replace.
Fit extraction that works. Humidity is the main enemy of a rental bathroom.
Kitchen
Keep the layout unless it is truly unworkable. Moving plumbing and gas costs far more than changing fronts and worktops.
Specify durable worktops and carcasses, soft-close hinges and a decent extractor.
Include the appliances a tenant expects and make sure each is easy to replace.
In a small apartment, an open-plan kitchen and living area can make the flat feel larger, but check that ventilation and any structural wall rules allow it.
Our custom kitchen installation, fitted wardrobes, doors and flooring work is done by our own carpentry team, which keeps finishes consistent across the property.
Finishes that survive tenants
Tenancy turnover is rough on surfaces. Choose finishes for how they age, not how they look on day one.
Flooring: floating laminate flooring installs quickly and is simple to replace plank by plank. Tile suits ground floors and terraces.
Paint: a neutral, washable finish in the main rooms. Repainting between tenants is the cheapest refresh you will ever buy, and our painting and restoration team can schedule it between lets.
Doors and wardrobes: fitted wardrobes add usable storage, a feature long-let tenants value highly, without adding furniture to maintain.
Climate: air conditioning is close to standard in Torrevieja lets. Install units sized to the room, with the outdoor unit placed where it respects community rules.
Pro Tip: Standardise. The same tap, handle, light fitting and paint colour across the flat means one spare part and one touch-up tin cover everything.
Paperwork that affects your return
Rules differ by municipality and by letting type, so confirm the details with your town hall and a gestor or lawyer. The following points should be on your checklist before work begins.
Energy certificate
Spain’s rules on energy performance certificates cover existing homes that are sold or let to a new tenant. The Ministry for the Ecological Transition (MITECO) page on Real Decreto 390/2021 sets out the scope, including buildings let to a new tenant. Certificates are also registered with the regional authority; the Generalitat Valenciana procedure page describes the registration of certificates in the Comunitat Valenciana. Insulation, windows and air conditioning upgrades can improve the rating, so it is worth commissioning the certificate after the works, not before.
Works permits
Municipal councils usually split works into minor and major. As an example from the same region, Benidorm’s town hall states that typical works such as tiling, flooring, bathrooms and kitchens go through a responsible declaration rather than a full licence. Torrevieja and Orihuela have their own forms and fees, so ask your contractor which route applies. A regional overview of renovation permits on the Costa Blanca explains the general logic, and our own article on permits and coastal costs in Torrevieja walks through the five stages of a renovation.
Structural changes, such as removing a wall, need more than a form. If you are managing from another country, read when walls need approval before agreeing a layout.
Holiday lets
Spain’s 2024 holiday rental legislation changed the landscape for tourist apartments, according to Inmopasha’s 2025 investment guide for Torrevieja. Before you spend on a tourist-let specification, confirm that the property can be registered and that your community’s statutes allow it. Local reporting in Informacion found that Playa del Cura has the largest supply of tourist apartments in Torrevieja, while Punta Prima, bordering Orihuela, is the most profitable area. Location shapes the return as much as the renovation does.
Our view: renovate the weakest link first
In our experience of residential work in Torrevieja and the Vega Baja, the renovations that disappoint landlords share a pattern: money goes into visible finishes while a weak point stays hidden. The weakest link fails first. A new kitchen over a leaking supply pipe, or fresh paint on a wall with a moisture source behind it, will be undone within a season.
So we approach a rental in this order:
Survey. We look at waterproofing, plumbing, electrics and ventilation before discussing taste.
Phased quote. You receive a detailed quote broken into phases, so you can see what each stage costs and decide where to stop.
One managed project. Plumbing, electrics, plastering, carpentry, tiling and painting are coordinated by us, with fixed pricing, deadlines and quality commitments, insurance and regulatory compliance.
Updates for owners abroad. If you are not in Spain, you get regular photo and video updates and clear communication in English.
We would rather tell an owner that a flat needs a modest refresh than sell a full renovation that the rent will never repay.
— URU Reformas
Buying a flat to renovate and let
If you have not bought yet, the survey matters more than the staging. A cheap, dated property can be a good investment, but only if the hidden costs are priced in. Our checklist of four checks before buying a property to renovate covers damp, installations, structure and paperwork. Add a rough renovation budget to the purchase price before comparing yields; the cheapest flat is often not the best one.
Choosing who does the work
For a landlord, the contractor is part of the return. Late completion costs rent, and badly finished wet rooms cost it twice. Compare firms on points that can be checked:
A written, itemised and phased quote, not a single lump sum.
Insurance and clear responsibility for permits.
A named person who answers messages and a realistic programme.
Photographic progress reports if you are abroad.
Previous work you can see; our Our Work page shows completed projects.
Our guide to shortlisting renovation firms in Torrevieja explains how to check salt-air experience and permits before signing.
Plan the works around your letting calendar
The cheapest weeks to renovate are the ones with no tenant. For a long let, time works between tenancies and agree a completion date in the contract. For a holiday let, avoid the summer and the Easter weeks when bookings peak. If you own a second home you use part of the year, schedule the works for when you are away, but agree fixed milestones and a handover inspection so that you can sign off by video call.
Build in a contingency, because older buildings reveal surprises once tiles and plaster come off. Keeping the contingency in the phased quote, not in your head, avoids arguments later.
Work with us on your rental
If you own a flat or villa in Torrevieja, Orihuela Costa or the Vega Baja and want a renovation plan that targets rent, occupancy and running costs, we offer a free consultation and a detailed phased quote. See our full renovation service, or contact us with photos of the property and your letting plans.
FAQ
Which renovation gives the best return on a rental property?
There is no single answer, but the pattern is consistent: fix defects first, then refit the bathroom and kitchen, then refresh the finishes. BiggerPockets ranks value-add renovations by budget for US investors, and the logic of cheap, visible upgrades first carries over. Your own numbers decide, so calculate payback before committing.
Should I renovate a rental between tenants or while it is occupied?
Between tenants wherever possible. Works in an occupied home disrupt the tenant, risk complaints and slow the job. A planned void period, with a fixed completion date in the contract, costs less than a slow job.
Do I need an energy certificate to rent out my flat in Spain?
Spanish rules cover homes let to a new tenant, as the MITECO page on Real Decreto 390/2021 sets out. Check the current requirements with a gestor or the regional authority before you advertise the property.
Can I manage a renovation from abroad?
Yes, if the contractor handles all trades, provides a written phased quote and sends dated photo and video updates. Agree milestones in advance so you can approve each phase remotely.
Sources
Recommended
Comments