100% Mortgage Sales Reach Five-Year High: What London Landlords Need to Know

Rising 100% Mortgage Sales: A New Landscape for Landlords

According to Mortgage Strategy, 100% mortgage sales—loans requiring no deposit—have reached their highest level in five years during the first nine months of 2025. This trend is particularly strong in the North West and South West regions, with some lenders now offering these zero-deposit products nationally.

For London landlords, this development matters because it changes the profile of prospective tenants and buyers. Many first-time buyers, previously unable to save for a deposit amid rising living costs, may enter the property market sooner. This shift influences tenancy durations, rent affordability, and demand patterns.

Why This Matters: Tenant Profiles and Affordability

Traditional tenant screening assumes some level of financial stability and deposit savings. The rise in 100% LTV mortgages means more tenants may be prospective buyers intending to move on once they secure mortgages.

Key implications include:

• Shorter tenancies: Tenants renting temporarily while arranging mortgage financing could increase turnover.
• Affordability pressures: Tighter tenant budgets may affect rent payment reliability.
• Tenant intentions: Understanding tenants’ buying plans helps anticipate vacancies and manage marketing.

Implications for Different Landlord Types

• Single-unit landlords: Prepare for potentially shorter tenancies; adjust pricing and marketing accordingly.
• HMO landlords: May see increased demand from younger tenants saving for deposits but face higher turnover.
• Portfolio landlords: Require robust screening processes and flexible turnover management.
• Accidental landlords: Should be aware of potentially less settled tenants impacting income stability.

Practical Steps for Landlords

1. Review tenant screening: Incorporate questions about homeownership intentions and adjust affordability assessments considering 100% mortgage availability.
2. Engage tenants early: Discuss buying plans and timelines to proactively manage tenancy agreements.
3. Adjust marketing strategies: Highlight flexibility and short-term tenancy options to appeal to temporary renters.
4. Monitor mortgage market changes: Stay informed of lender offerings and FCA guidance to understand tenant financial profiles.
5. Coordinate compliance efforts: Ensure tenant financial data and advice align with official FCA or lender standards.

What This Means for Buy-to-Let Demand

The growth in zero-deposit mortgages could lead to:

• Increased tenant turnover: More tenants transitioning to homeownership sooner.
• Potentially stronger long-term rental demand: If some buyers delay or fail to secure mortgages.

Landlords should track local market data and consult estate agents and mortgage brokers for insight.

Next Steps This Quarter

• Review and update tenant screening and affordability criteria.
• Initiate discussions with tenants about future housing plans.
• Update marketing materials to emphasise tenancy flexibility.
• Consult compliance advisors to verify mortgage-related tenant information.

How Rentals & Sales Can Support You

Our landlord intelligence hub provides portfolio reviews and compliance audits to help you adapt effectively. We offer pricing strategy consultations that consider evolving tenant profiles and mortgage market dynamics. Contact us to schedule a session and ensure your lettings strategy is optimised for 2025’s market realities.

Compliance disclaimer: This article is for informational purposes only and does not constitute financial advice. Landlords should consult qualified professionals and official FCA or lender sources before making decisions related to tenant finance or mortgage products.