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Vacant Ex-Rental Homes and the Mortgage Market Impact

New regulations may leave up to 100,000 ex-rental homes vacant, impacting landlords and the mortgage market.

By David Sampson
4 August 2026
3 min read
UK buy to let mortgage article image for Vacant Ex-Rental Homes and the Mortgage Market Impact

TL;DR

  • Up to 100,000 unsold rental properties may remain vacant due to new regulations.
  • landlords face a 12-month ban on re-letting after serving a notice to sell.

Written by David Sampson for Mortgage118. Last updated 4 August 2026. Reviewed against our editorial standards. Editorial standards. Mortgage118 is a directory — not FCA-authorised and not a mortgage adviser.

The recent slowdown in landlords selling rental properties could lead to a significant number of homes remaining vacant, with estimates suggesting up to 100,000 ex-rental homes may not return to the rental market. This situation arises from the Renters’ Rights Act, which imposes restrictions on landlords looking to sell, thereby affecting the overall dynamics of the mortgage market.

What is the Renters’ Rights Act?

The Renters’ Rights Act, which took effect in May 2026, introduces a mandatory 12-month ban on re-letting for landlords who serve a Ground 1A notice to sell. This means that even if a sale does not go through, landlords cannot rent out their properties for a full year. This legislation aims to protect tenants but has significant implications for landlords and the broader housing market.

How Many Homes Could Be Affected by the Mortgage Market Changes?

Research by Hamptons indicates that the share of homes listed for sale that were previously rented has decreased, dropping to 9.2% in June 2026 from 11.3% the previous year. This decline suggests that while landlords are selling less frequently, the new regulations could prevent a substantial number of these homes from returning to the rental market. Estimates indicate that between 80,000 and 100,000 homes could remain vacant if landlords are unable to sell their properties.

What Does This Mean for Landlords in the Mortgage Market?

For landlords, the implications are significant. The combination of a tougher sales market and the new re-letting ban complicates the selling process. Many landlords may be discouraged from selling due to the risk of not being able to rent their properties for an extended period. This could lead to a decrease in the number of rental properties available, potentially driving up rental prices. Average rents for newly-let homes rose by 1.6% year-on-year in June, indicating a tightening rental market.

What Should Investors Watch Next in the Mortgage Market?

Investors and landlords should monitor the evolving rental market closely. The introduction of the Renters’ Rights Act could lead to a significant shift in property investment strategies. With the potential for increased vacancy rates and rising rents, understanding market dynamics will be important. Additionally, those looking to enter the market should consider current mortgage rates and the implications of these new regulations on their investment decisions. For the latest rates, check our current mortgage rates.

Frequently asked questions

How does the Renters’ Rights Act affect landlords?

The Renters’ Rights Act imposes a 12-month ban on re-letting for landlords who serve a notice to sell, potentially leading to increased vacancies and complicating sales.

What impact could vacant homes have on the rental market?

With up to 100,000 ex-rental homes potentially remaining vacant, the rental market may face tighter supply, leading to increased rental prices for existing properties.

About David Sampson

David Sampson writes about the UK mortgage market for Mortgage118, covering specialist lending, market trends, and practical advice for borrowers. All content is reviewed for accuracy against FCA guidelines and current market data.

Vacant Ex-Rental Homes and the Mortgage Market Impact | Mortgage118