Comparison

Bank Development Loan vs Alternative Finance in Spain: When to Combine Them

iberfund · October 2026 · 6 min read
← Back to the blog

Financing a development does not require choosing between a bank and alternative capital: in many projects the most efficient answer is to combine them. This comparison summarises what each brings and when it makes sense to use both.

Quick comparison

Bank development loanAlternative finance
CostLower: Euribor-linked margin plus feesHigher: can be double-digit depending on risk and structure
Amount vs. costApprox. 60–75%Complements the bank to reach higher levels when combined
Pre-salesUsually required (30–50%) before drawdownMuch more flexible; not a general requirement
SecurityMortgage and often personal guaranteesSecurity over the project or the company; varies by deal
SpeedWeeks to months of analysisNormally faster, once documentation is complete
Asset typesStandard residential, developers with track recordAlso hotels, mixed-use, land or early-stage projects

The tiered structure

The usual combination splits the project into tranches: senior bank debt as the base, a complementary tranche (mezzanine or alternative debt) and developer equity. The bank provides the cheapest part; alternative capital covers what the bank will not finance, and the developer commits less equity. The trade-off is coordinating terms between lenders: who is paid first, what security each shares and what drawdown schedule applies. Careful structuring avoids conflicts between tranches.

When to combine

When the bank alone is enough

If the developer has enough equity, advanced pre-sales and a track record, bank finance alone is usually cheaper. Adding alternative capital raises the cost and only pays off if it enables a project that would not otherwise happen, or frees up capital for another one.

What an intermediary does

An intermediary organises the project information, decides which lender fits each tranche and coordinates the process. It does not replace the developer's decision or each lender's criteria. At iberfund we charge nothing until the transaction closes: the success fee is 2% and is payable only if the finance is signed.

Frequently asked questions

Is it more expensive to combine bank and alternative capital?

The alternative tranche costs more than the bank tranche, so the blended cost rises. It pays off if it enables a project that would not be viable with bank debt alone, or reduces the equity needed so it can be used elsewhere.

What is mezzanine debt?

A tranche of debt subordinated to the senior bank debt: it is repaid after the bank, so it carries more risk and a higher cost, and it covers part of the cost the bank does not finance.

Do I need pre-sales to access alternative finance?

Not as a general requirement. Each fund or platform sets its own criteria, but they are more flexible than banks on this; what they do assess is the project, the security and how it will be repaid.

The figures in this guide are indicative market ranges: they change with timing, lender and developer profile. Every transaction is assessed individually and this page is not an offer of finance.

Do you have a project that needs financing?

Tell us the basics and receive a feasibility answer within 48–72 hours. No cost until closing; the success fee is only payable if the transaction closes.

Request a free analysis →
← Back to the blog