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Knowledgebase

Background, explanations, and insights into investing in real estate on the Costa del Sol. Written for the investor who wants to understand before deciding.

Villa with pool in the evening light
Featured

Profit sharing, fixed interest, or hybrid. Which model is right for you?

Three models, three different balances between security and return. We have outlined the considerations for you.

Niels Schuit
·
September 14, 2026
·
7
minute read
Read the article

All articles

AllInvestingMarketRiskLegal and tax
Two people signing a document at a wooden table
Legal and tax

Applying for an NIE number as an investor: when and how

November 2, 2026
·
11
min read

The NIE is your Spanish identification number, required for every notarial deed. Read when you need it, how to apply from the Netherlands and what it costs.

Euro banknotes, calculator, and notes on a wooden desk
Investing

Illiquid investments: what it means when your assets are tied up

October 29, 2026
·
9
min read

Illiquid investments trade flexibility for a potentially higher return. What this means for your wealth plan and how to arrange your liquidity in advance.

Fanned-out euro banknotes of various denominations side by side
Investment models

Profit sharing in a real estate project: how net profit is calculated

October 26, 2026
·
9
min read

Between the selling price of a villa and the net profit lie taxes, renovation, and sales costs. This is how net profit is calculated for profit sharing.

Calculator and laptop on a desk while calculating costs
Market

Renovation costs in Spain: where a renovation project's budget goes over

October 23, 2026
·
11
min read

What a full renovation in Spain costs per m², where the budget is exceeded in practice, and how that affects a project's outcome.

Woman in business attire with a folder and house key
Legal and tax

Power of Attorney in Spain: Investing without appearing before the notary yourself

October 21, 2026
·
9
min read

With a notarial power of attorney, someone else signs on your behalf at the Spanish notary. Read about which form is suitable, how apostilles and translations work, and who to appoint.

Coastline with illuminated apartments and villas by the sea at twilight
Risk

The risks of investing in real estate projects, phase by phase

October 19, 2026
·
9
min read

From purchase and permits to construction and sale. Where a real estate project can fall short, and how a sensitivity analysis makes that visible in advance.

Euro banknotes and coins with a key on a house key ring
Legal and tax

Interest income from Spain: how taxation works for Dutch investors

October 19, 2026
·
9
min read

How Spain and the Netherlands tax interest from a Spanish real estate project, why the certificate of tax residence matters, and what to arrange in advance to prevent withholding.

Hands over financial charts and reports on a desk
Investing

Real estate through your holding company. What role can it play?

October 12, 2026
·
8
min read

What portion of the capital in your holding company is truly available, and how does a real estate project fit alongside your business? The key considerations for entrepreneurs at a glance.

Hands with a calculator over charts and financial reports
Risk

Building permits for a Spanish renovation project: the permit risk in figures

September 9, 2026
·
9
min read

Which building permit is required for a Spanish renovation project, how long does the procedure take, what does it cost, and how do delays affect the return on investment?

Man counting euro banknotes during a business meeting
Legal and tax

Inheritance tax in Spain: what happens to your Spanish position upon death

September 7, 2026
·
9
min read

Inheritance tax in Spain: what happens to a Spanish property or participation in a project upon death, and how the Netherlands limits double taxation.

Wooden house model with keys on a document
Risk

Due diligence for Spanish real estate projects: which documents to request

September 4, 2026
·
9
min read

Which documents should you request before investing in a Spanish real estate project? The four-layer due diligence process: property, company, project, and your position.

Renovated white villa with pool on the Costa del Sol
Legal and tax

Investing via a Spanish S.L. How the structure works

September 2, 2026
·
6
min read

What an S.L. is, why we use it, and what you should look for as an investor. The legal basis for your investment, clearly explained.

Scales of justice on a desk with a lawyer reading
Legal and tax

Investment agreements for Spanish real estate projects: which provisions matter

September 2, 2026
·
9
min read

Which provisions matter in an investment agreement for a Spanish real estate project? Twelve points that define your position.

Hands over financial charts and reports on a desk
Risk

Exit strategies for Spanish renovation projects: what if the property doesn't sell

August 31, 2026
·
8
min read

What happens if a Spanish renovation project doesn't sell on time? Four exit strategies and the agreements you should establish in advance.

Hand on forms next to a calculator on a marble table
Legal and tax

Mortgage security in Spain: how to check what is actually registered

August 26, 2026
·
9
min read

Mortgage security in Spain is only legally binding after registration. Here is how to verify what has been established via the Registro de la Propiedad.

Hands counting banknotes next to a laptop, calculator, and charts
Investment models

Returns on Spanish real estate: what a renovation project actually yields

August 24, 2026
·
9
min read

Returns on Spanish real estate depend on the project phase, not a fixed percentage. Here is how a renovation project progresses from purchase to sale.

Costa del Sol coastline with mountains in the background
Market

Why the Costa del Sol remains popular with affluent buyers

August 21, 2026
·
8
min read

On supply, demand, and the high-end segment along the coast. Why affluent buyers from across Europe have been coming to the Costa del Sol for decades.

Folder with house keys and architectural drawings in the hands of an advisor
Legal and tax

Taxes on Spanish Real Estate: What You Need to Know

August 20, 2026
·
2
min read

The main taxes on Spanish real estate: IBI, wealth tax, and income tax for non-residents.

Woman analyzing charts and reports at a desk
Legal and tax

Spanish real estate and Box 3: direct ownership or project participation

August 19, 2026
·
9
min read

Spanish real estate and Box 3: the difference between direct ownership and project participation, and why tax treatment varies by structure.

Yachts in the harbor on the Costa del Sol
Risk

Six questions you should ask every real estate party

August 7, 2026
·
5
min read

A checklist for every investor, with us or elsewhere. Six questions that show whether a real estate partner deserves your trust.

Villa with illuminated pool at twilight
Legal and tax

What does a notarized agreement cover for you?

July 24, 2026
·
6
min read

The legal foundation for your investment, clearly explained. What the Spanish notary does and which agreements you will find in the contract.

Renovated villa with glass balcony and swimming pool
Market

Renovating in the high-end segment. Where does the value lie?

July 10, 2026
·
7
min read

Which interventions truly increase a villa's value, and which ones primarily cost money. On location, light, outdoor living, and sustainable quality.

Harbor on the Costa del Sol with a sea view
Investing

Real estate as part of your wealth planning

June 26, 2026
·
6
min read

Tangible assets alongside stocks, bonds, and liquidity. On the role that real estate can play in a balanced wealth plan.