Financing a Fixer-Upper: Mortgages for Renovation Projects in Spain
A charming but tired property in Spain can be a bargain in disguise — or a budgeting headache. Here is how Spanish mortgages for non-residents actually treat renovation costs, and what UK buyers need to prepare before making an offer.
Who is behind this page. Colibrí Finances is the mortgage brand of PISOK NUEVO HOGAR, S.L., a credit intermediary registered with the Bank of Spain (code E480). We compare more than 20 Spanish banks for people who live abroad. The study is free; we only charge a fee if you sign, agreed in writing beforehand. We answer in English.
Can a Spanish Mortgage Cover Renovation Costs?
Many British buyers looking at older houses or flats in Spain assume the mortgage will simply stretch to cover both the purchase and the building works. In practice, Spanish banks look at the two separately: the loan is secured against the property as it exists today, not against what it could become after renovation.
That does not mean renovation can never be included. Some banks will consider an additional amount for documented works, but this depends heavily on the bank, the scope of the project and your financial profile — never on a fixed percentage we can promise in advance.
Before you fall in love with a project, remember that a Spanish mortgage is assessed on the property's current value, not its potential after works are finished.
How Renovation Costs Fit Into the Loan
When a bank in Spain studies a fixer-upper in Spain, its valuer inspects the property as it stands. The valuation report, not the buyer's renovation dream, sets the ceiling for what the bank considers lending against. If the building needs a new roof, rewiring or structural repairs, that is treated as a separate cost to plan for, not an automatic extra on top of the mortgage.
Some lenders will study a request that bundles purchase and works together, particularly when the renovation is modest and well documented. Others prefer to finance only the purchase and leave the buyer to fund the works separately, perhaps later, once equity has built up. The exact share of financing available, and whether works can be included at all, depends on the bank, your country of residence and your overall profile — there is no fixed figure we can quote.
A property that needs major structural work is often valued, and financed, more cautiously than one that simply needs updating.
NIE
Your Starting Point, Whatever the Project
Before any bank will discuss a mortgage — renovation included or not — a non-resident buyer needs a Spanish tax number (NIE) and a Spanish bank account. These are needed to sign the purchase, to pay suppliers if you take on works yourselves, and later to receive or make payments linked to the property.
What Banks Want to See Before Considering Extra Funds for Works
If you want a bank to factor renovation into the loan, expect to be asked for more than a rough estimate. A detailed, professional budget — ideally from a licensed builder or architect — carries far more weight than a verbal plan. Banks in Spain are used to seeing a detailed renovation project with itemised costs, and the more precise this is, the easier it is for them to assess.
Alongside the renovation paperwork, UK buyers go through the same income and identity checks as any non-resident applicant. The list can vary slightly by bank, but it typically includes recent proof of earnings, a record of your tax position in the United Kingdom, and evidence of your existing financial commitments.
- Recent P60 and payslips
- Your last filed UK Self Assessment tax return
- Bank statements covering the last three to six months
- Evidence of any existing loans or mortgage commitments
- A valid passport or UK national identity document
- A detailed renovation budget or builder's quote, where works are to be included
| Property type | Extra cost to plan for | Who sets it |
|---|---|---|
| Resale home needing work | ITP (transfer tax) | Each Spanish region |
| New build or major rebuild sold as new | 10 % VAT + stamp duty | National and regional rules |
Currency, Timing and the Bigger Picture
Because the United Kingdom uses the pound rather than the euro, the cost of both the purchase and any renovation work can shift with exchange rates between the moment you budget and the moment you pay. It is worth tracking this separately from the mortgage itself, since transfers for building costs often happen in stages over months.
Longer term, Spain and the United Kingdom have a double taxation agreement, and a local tax adviser should confirm how any future rental income or capital gain from the renovated property must be declared, both in Spain through the annual non-resident return (Modelo 210) and to HMRC. If you later sell, the buyer will withhold 3 % of the price on account of your Spanish tax. And since the Golden Visa route ended on 3 April 2025, buyers should plan their stays in Spain around the standard 90 days in any 180-day period available without a visa, applying for a longer-stay permit if the project requires more time on site.
Working Out the Numbers With Colibrí Finances
At Colibrí Finances we compare more than 20 Spanish banks to see how each one treats a property that needs work, and whether a particular lender is open to including documented renovation costs in the loan. We prepare the file, translate what each bank asks for, and follow the process through to the notary.
The study is free and without obligation, and we work in English. We only charge a fee if you go ahead and sign, and that is always agreed with you in writing beforehand.
If you live in the United Kingdom
Spain is a relatively short flight away from most UK airports, making regular visits to a Spanish property straightforward for owners based in Britain. Many British buyers are drawn to Spain for its climate, coastal lifestyle and established expatriate communities. One practical point to bear in mind is that Spanish inheritance law differs from UK rules, so it is worth taking specific advice on how it may affect the property and one's estate. Currency movements between sterling and the euro can also affect the overall cost of purchase and ongoing expenses.
What a Spanish bank will usually ask you for
- Proof of income: recent P60 and payslips
- Last filed UK tax return (Self Assessment)
- Bank statements from the last three to six months
- Evidence of existing loans or mortgage commitments
- Valid passport or UK national identity document
Tax at home and in Spain
Spain and the United Kingdom have a double taxation agreement in place, and a local tax adviser should confirm how rental income or gains from Spanish property must be declared and reported to HMRC.
Staying in Spain
As the United Kingdom is no longer an EU member state, British citizens may stay in Spain for up to 90 days in any 180-day period without a visa, and must apply for a visa or residence permit for longer stays.
Since the United Kingdom uses the pound sterling (GBP) rather than the euro, buyers should factor in exchange-rate movements and currency conversion costs when paying for a property or transferring funds to Spain.
Frequently asked questions
Can a Spanish mortgage cover both buying and renovating a property in Spain?
Sometimes, but not automatically. Banks value the property as it is today, and any extra amount for works depends on the bank, how detailed your renovation budget is, and your overall financial profile. There is no fixed share we can promise in advance, so it is worth discussing your specific project early.
Do I need planning permission before applying for financing?
Not always at application stage, but banks will want a clear, costed renovation plan, ideally from a licensed builder or architect. Significant structural changes may need local permits before work starts, and your gestoría or architect in Spain can confirm what applies to your specific property.
Will the bank value the property based on what it will be worth after renovation?
No. Spanish bank valuations reflect the property's current condition, not its potential value once works are finished. This is why a well-documented renovation budget matters: it helps the bank understand the scope of the project, even though the valuation itself is based on today's state.
How do I budget for both the mortgage and the building costs in pounds?
Since the United Kingdom uses sterling and Spain uses the euro, both your purchase funds and any staged renovation payments are exposed to exchange-rate movements. It helps to plan transfers around your building schedule and keep some margin for currency fluctuations between budgeting and actually paying suppliers.
Does owning a fixer-upper change my tax position as a UK non-resident?
You will still file an annual non-resident tax return (Modelo 210) in Spain, and the double taxation agreement between Spain and the United Kingdom affects how rental income or any future gain is treated. A tax adviser should confirm exactly how renovation costs factor into your declarations in both countries.