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Mortgage Solutions21 May 2026Low risk

Buckinghamshire Building Society Boosts Buy-to-Let and Holiday Let Mortgage Limits: What Landlords Must Do Now

Buckinghamshire Building Society has increased its maximum buy-to-let and holiday let mortgage loan amounts from £500,000 to £750,000 and introduced new fixed-rate products, including options for limited company SPVs and acceptance of expat applicants from Hong Kong (excluding British National Overseas). This article outlines key implications and recommended actions for private landlords and letting agents to optimise financing opportunities and manage costs effectively.

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What’s New at Buckinghamshire Building Society?

Buckinghamshire Building Society has expanded its mortgage offerings by increasing the maximum loan amount for buy-to-let (BTL) and holiday let mortgages from £500,000 to £750,000. Along with this, the society has introduced a wider range of fixed-rate products, including options tailored for limited company special purpose vehicles (SPVs). The society also now accepts mortgage applications from Hong Kong expat residents, excluding British National Overseas (BNO) holders.

Why This Matters for Private Landlords

Opportunity to Finance Higher-Value Properties

The £250,000 increase in maximum loan size enables landlords targeting higher-value BTL or holiday let properties to access greater financing through Buckinghamshire BS. This is especially relevant in pricier markets like London and the South East or for those seeking to expand their portfolio with larger properties.

Limited Company SPV Products

Limited company SPVs are increasingly used for tax efficiency and liability management. Buckinghamshire BS’s new fixed-rate mortgage range, with varying terms and loan-to-value (LTV) thresholds for SPVs, offers landlords more tailored financing options which can influence financial planning and lending strategies.

Inclusion of Hong Kong Expat Borrowers

By accepting mortgage applications from Hong Kong expats (excluding BNO status), Buckinghamshire BS broadens the pool of eligible borrowers. Letting agents and mortgage advisers should update their acquisition and advice approaches accordingly.

Practical Implications by Landlord Profile

  • Single-Unit Landlords: Those seeking to upgrade or purchase higher-value properties may benefit from the increased loan ceiling.
  • Portfolio Landlords: Larger portfolios can consider refinancing or acquiring more substantial holiday lets, potentially boosting rental returns.
  • HMO Owners: Depending on property valuations, the new limits might enable expansion or diversification.
  • Accidental Landlords: Impact may be limited unless considering leveraging assets for larger investments.

Managing Risks and Costs

The expanded product range offers flexibility; however, all fixed-rate products carry a £1,500 arrangement fee. Landlords and agents must incorporate this into financial modelling and tenant rent-setting strategies.

Additionally, varying terms and LTV thresholds require careful comparison with existing products to avoid unexpected mortgage cost increases.

Recommended Actions for Landlords and Letting Agents

  1. Portfolio Review: Identify properties or acquisitions where the raised £750,000 mortgage limit can unlock financing opportunities.
  2. Client Strategy Update: For landlords with expat clients, especially from Hong Kong, revise marketing and advisory processes to reflect new eligibility.
  3. Product Familiarisation: Study the detailed terms of the new SPV products, including fees, rates, and LTV restrictions.
  4. Financial and Operational Planning: Include the £1,500 mortgage fee and updated rate structures in budgeting and rent calculations.
  5. Confirm Details: Verify product specifics and application criteria with Buckinghamshire Building Society’s official resources before advising clients.

Next Steps for Property Teams

  • Schedule a meeting to review current financing strategies in light of these changes.
  • Consult mortgage brokers or advisers specializing in BTL and holiday lets to identify best-fit products.
  • Update client onboarding and compliance checklists to incorporate new expat eligibility and SPV considerations.

How Rentals & Sales Can Support You

Our team offers comprehensive portfolio reviews and compliance audits customized to evolving mortgage products and lending criteria. We provide strategic pricing advice to optimise rent-setting aligned with new cost structures, helping ensure your investments remain profitable. Contact us for a personalised consultation.


Compliance Note: This article provides general information but does not constitute financial advice. Landlords should seek professional mortgage and legal advice tailored to their specific circumstances before making decisions.

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