For family offices managing substantial property portfolios across multiple jurisdictions, access to capital is no longer a simple affordability exercise. In 2025, the challenge is fundamentally structural: how to unlock liquidity across borders while preserving balance sheet efficiency, maintaining confidentiality, and retaining long-term strategic control.

The UK, France, and Monaco continue to represent cornerstone holdings for ultra-high-net-worth families. These markets offer political stability, legal certainty, and deep pools of institutional capital. However, they also operate under markedly different legal frameworks, tax regimes, lending cultures, and regulatory expectations. Financing assets across these jurisdictions therefore requires a level of coordination and foresight that extends far beyond a standard mortgage transaction.

Increasingly, family offices are moving away from siloed, country-by-country borrowing. Instead, they are adopting integrated cross-border financing strategies that allow assets in one jurisdiction to support borrowing in another. These structures are typically implemented at conservative leverage levels and designed to complement broader investment, succession, and capital allocation strategies rather than maximise short-term borrowing capacity.

Willow Private Finance works closely with family offices, private banks, and specialist lenders to design and execute these structures. Our role is not transactional. It is strategic—ensuring that lending aligns with long-term family objectives, intergenerational planning, and wider balance sheet considerations.

This guide explains how cross-border property finance operates in 2025, how lenders assess these structures, and where expert structuring becomes critical to success.

The Cross-Border Lending Landscape

Cross-border property finance has evolved significantly over the past decade. Private banks and specialist lenders are now far more comfortable lending against international asset bases, provided the underlying structures are robust, transparent, and professionally managed.

In the UK, lenders have become more cautious in response to valuation volatility, regulatory scrutiny, and heightened source-of-wealth requirements. While the market remains highly liquid, underwriting is increasingly forensic, particularly where borrowers are internationally based or assets are held through layered ownership structures.

France offers a contrasting profile. Lenders benefit from strong security enforcement rights, but transactions are slowed by notarial processes, documentation requirements, and tax considerations. Cross-border borrowers must navigate translation, legal harmonisation, and differing approaches to loan documentation, all of which can extend completion timelines.

Monaco operates in a fundamentally different way. Lending is relationship-led, access is selective, and transactions are typically embedded within broader private banking mandates. While leverage levels are usually conservative, pricing and flexibility can be highly attractive for well-capitalised family offices with existing banking relationships.

What has changed is lenders’ willingness to assess these jurisdictions holistically rather than in isolation. Family offices with diversified, low-leverage portfolios across multiple prime markets are increasingly viewed as lower risk than borrowers concentrated in a single geography. This has materially expanded lender appetite for portfolio-based and cross-collateralised structures.

How Cross-Border Property Finance Structures Work

At its core, cross-border property finance enables assets in one jurisdiction to support borrowing in another, either directly through shared security or indirectly via coordinated lending facilities.

This may involve a UK private bank lending against a combined UK and French asset base, or a Monaco-based lender providing liquidity secured against prime London property. In other cases, borrowing is raised in one jurisdiction and deployed into another, depending on tax efficiency, investment strategy, and currency considerations.

These structures are almost always conservative by design. Loan-to-value ratios are typically capped between 30% and 50% across the portfolio, even where individual assets are unencumbered. The objective is not leverage maximisation, but balance sheet optimisation—creating liquidity without compromising long-term resilience.

A critical element is alignment between lending structures and ownership vehicles. Assets may be held personally, through corporate entities, trusts, or family investment companies. Any misalignment between ownership, control, and security can create friction with lenders and is one of the most common reasons cross-border transactions fail.

For a deeper exploration of how lenders approach complex ownership, see our guide on Trusts and Property Finance in 2025.

Jurisdictional Considerations: UK, France, and Monaco

Each jurisdiction introduces unique considerations that must be addressed within a unified financing strategy.

The UK remains the most flexible lending environment, supported by a wide range of private banks and specialist lenders. However, valuation scrutiny has intensified, particularly for trophy assets and prime central London property. Source-of-wealth verification, transparency around beneficial ownership, and regulatory compliance are increasingly central to underwriting decisions—especially for overseas family offices.

This process is explored further in How Private Banks Verify Wealth for UK Property Purchases in 2025.

France presents a different dynamic. While lender protections are strong, transaction complexity is higher. Notarial involvement, translation requirements, and differing legal concepts around security can materially affect deal timelines. Tax structuring is also critical, particularly where assets are held through non-French entities or form part of a wider succession strategy.

Monaco operates almost entirely on relationship banking principles. Lending decisions are heavily influenced by asset quality, existing client relationships, and the broader private banking mandate. While headline leverage is typically low, flexibility around repayment terms, interest-only structures, and facility design can be attractive when aligned with wider wealth management objectives.

Successful cross-border financing depends not only on understanding each jurisdiction in isolation, but on anticipating how lenders perceive risk when those jurisdictions intersect within a single structure.

What Lenders Are Really Assessing

Contrary to popular perception, income is often secondary in family office lending. In 2025, lenders focus on four primary areas.

First is asset quality. Prime, liquid property in established global markets is favoured, particularly where assets are unencumbered or lightly leveraged.

Second is liquidity outside property. Cash reserves, marketable securities, and diversified investment holdings materially enhance lender confidence and reduce perceived risk.

Third is governance. Family offices with clear decision-making frameworks, professional advisers, and transparent reporting structures are consistently viewed as lower risk counterparties.

Finally, lenders assess intent. Borrowing to support investment deployment, tax planning, or portfolio rebalancing is assessed very differently from borrowing driven by short-term cashflow pressure.

This is why many family offices now favour asset-backed lending strategies rather than traditional income-based approaches. We explore this further in Why Family Offices Are Using Property Debt as a Balance Sheet Tool in 2025.

Common Challenges in Cross-Border Deals

Despite favourable conditions, cross-border property finance remains complex.

Currency risk is a frequent challenge, particularly where assets and liabilities are denominated in different currencies. Hedging strategies should be integrated at the outset, rather than introduced reactively.

Timing mismatches between jurisdictions also present risk. UK lending processes can move quickly, while French notarial timelines may be significantly longer. Without careful coordination, this can result in funding gaps or delayed deployments.

Over-reliance on a single banking relationship is another common issue. While centralisation can simplify administration, it can also constrain flexibility if lender appetite changes.

Confidentiality is also critical. Poorly structured transactions can expose unnecessary information across jurisdictions, undermining the discretion many family offices prioritise.

Strategic Approaches Used by Sophisticated Family Offices

Experienced family offices treat cross-border finance as an integrated component of their overall capital strategy, not a standalone transaction.

Borrowing is often ring-fenced within specific vehicles, preserving optionality elsewhere in the portfolio. Conservative leverage is used deliberately to ensure refinancing flexibility, even if market conditions tighten.

Many family offices also maintain multiple banking relationships across jurisdictions, allowing assets to be leveraged where appetite, pricing, or flexibility is strongest at any given time.

Above all, they engage advisers capable of aligning legal, tax, and lending considerations across borders—rather than optimising one element at the expense of the others.

Hypothetical Scenario: Coordinating UK and French Assets

Consider a family office holding unencumbered prime residential property in London and the South of France, with no immediate requirement to dispose of assets.

Rather than selling property to fund a new investment, modest leverage is raised against the UK assets through a private bank, while French properties remain unencumbered for succession planning.

The facility is structured with conservative LTVs and flexible repayment terms, allowing liquidity to be deployed elsewhere while preserving long-term control of the property portfolio.

No assets are forced to market. No ownership structures are compromised. Liquidity is created without disrupting the broader strategy.