Why Rent-Controls Often Lead to Higher Rents

And what landlords, tenants and the wider market should understand

Rent controls are typically introduced with good intentions: to protect tenants from sharp rent increases, improve affordability and enhance stability in the private-rented sector. Yet decades of economic research and real-world examples consistently show that rent-control regimes—even well-intended ones—often produce the opposite of what policymakers expect. Instead of lowering rents, they tend to drive rents higher, reduce the overall supply of rental homes, and distort the housing market in ways that disadvantage both tenants and landlords.

This article explores:

1. What has happened in the UK—particularly Scotland—under rent-control policies.

2. The key economic mechanisms that push rents upward under such regimes.

3. The implications for landlords and investors.

4. Why rent controls rarely solve housing affordability issues.

1. Scotland: A Clear Real-World Example

In Scotland, rent controls and rent freezes were introduced in 2022 as part of the Cost of Living (Tenant Protection) Act. Initially, the legislation froze rent increases and introduced an eviction moratorium. Later, this transitioned into a rent-cap system (for example a 3% limit on increases) before reverting back to open-market increases in 2024.

Despite the intention to protect tenants, the results tell a different story:

• Rents for new lets in Scotland rose faster than in many other UK regions during and after the cap period.

• The pace of rent rises in Scotland accelerated sharply once the cap lifted, with the jump in new-let rents outpacing the rest of Great Britain.

• Rents for certain types of properties increased more in the two years following the introduction of rent controls than they had over the previous decade.

This pattern is not unique to Scotland; it reflects long-observed global trends. Rent controls often produce short-term relief for existing tenants, but once market forces reassert themselves, the overall rent burden typically increases.

2. Why Rent Controls Lead to Higher Rents

Though it may seem counter-intuitive, rent controls frequently raise market rents through several interconnected mechanisms.

a) Reduced Supply of Rental Housing

Rent controls suppress the financial incentive for landlords to:

• Invest in new rental properties

• Upgrade or improve existing properties

• Keep properties in the private-rented sector rather than converting or selling

When landlords face restrictions on how much rent they can charge, many simply exit the market, reducing the total supply of rental housing. Since demand rarely falls at the same pace, the reduced supply pushes up rents for all units not subject to strict controls.

b) Higher Rents in Uncontrolled Segments (“Spill-over Effects”)

Rent-control schemes almost never cover all properties. Common exemptions include:

• New-build housing

• Vacant-to-let properties

• Certain tenancy types

• Purpose-built student accommodation

• Short-term lets

When rent controls restrict increases on existing tenants, demand shifts heavily toward uncontrolled units. With fewer controlled properties becoming vacant—because tenants stay put to retain lower rents—competition intensifies in the uncontrolled market. This drives up rents for new tenancies and unregulated units.

Many studies across Europe and North America show that while controlled units stay “cheap”, uncontrolled units rise significantly faster compared to markets without rent control.

c) Reduced Tenant Mobility and Market Distortion

When existing tenants benefit from artificially low rents, they have little motivation to move—even when the property no longer suits their needs. This leads to:

• Under-occupation (e.g., single people staying in large family homes)

• Over-occupation (e.g., families staying in small flats they’ve outgrown)

• Very low turnover in the rental market

Low turnover reduces the number of properties available for new tenants, increasing competition and driving up rents for the units that do enter the market.

d) Decline in Property Quality

When rent levels are artificially suppressed:

• Maintenance becomes financially challenging

• Improvements and refurbishments are delayed

• Properties gradually decline in quality

Over time, this leads to a shrinking pool of high-quality rental housing. The fewer high-quality units that remain can then command a premium, pushing rents even higher.

e) “Catch-Up” Rent Increases After Controls End

Rent caps create pent-up inflation. When the restrictions lift, landlords often raise rents more sharply to restore them to market levels. This behaviour is entirely predictable:

• Controlled rents fall significantly below market rents

• A sudden “gap” appears

• When legally allowed, landlords act quickly to catch up

This phenomenon was clearly visible in Scotland. Once the cap ended, rents for new tenancies surged more dramatically as landlords reset rents to reflect actual market conditions.

3. What This Means for Landlords and the PRS

The consequences of rent-control regimes for landlords include:

Higher Regulatory Risk

When governments alter rent-setting rules, the risk profile of rental investments increases. This can affect:

• Portfolio planning

• Valuation expectations

• Mortgage viability

• Exit strategies

Greater Importance of Property Quality

As many landlords cut maintenance under rent caps, those who continue to invest in quality see:

• Better tenant demand

• Higher achievable rents

• Lower void periods

Complex Pricing Strategy

Landlords with properties that fall outside a control regime may find that:

• Market rents rise faster due to suppressed supply

• High-quality, well-located properties command stronger premiums

• Competition among tenants increases during periods of restricted availability

4. Policy Implications

Most economists agree that rent controls do not address the root causes of unaffordable housing. The core problem is almost always insufficient supply.

Rent controls:

• Tackle symptoms, not causes

• Reduce investment and profitability in the rental sector

• Suppress supply

• Lead to higher rents for new entrants

• Deter new development

• Create market distortions that harm long-term affordability

The only consistent long-term solution is building more homes, not restricting the price of existing ones.

5. Summary

Rent controls are politically attractive and often introduced with good intentions. But the evidence—historical, international and recent UK experience alike—demonstrates that they frequently:

• Reduce supply of privately rented homes

• Increase rents for uncontrolled units

• Distort mobility and market behaviour

• Lower property quality

• Lead to sharper rises when controls end

For landlords, investors and tenants alike, rent controls may provide limited short-term gains for some, but they tend to worsen affordability for many others over the medium and long term.

Understanding these dynamics is crucial for anticipating market changes, planning investments and navigating an increasingly regulated rental landscape.