Rent regulation: what exists and where it is heading

Rent regulation limits how much and how often rents may be raised. It exists in various forms in a number of United States jurisdictions and has been expanding.

The debate is heated. The underwriting question is narrower: what applies where you are buying, and how likely is it to change?

The forms it takes

Traditional rent control, which caps rents at a set level with limited increases, applying to specific older housing stock in a small number of jurisdictions.

Rent stabilization, which permits annual increases within limits set by a board, generally with vacancy provisions that vary.

Rent caps or anti-gouging statutes, the more recent and rapidly spreading form. These cap annual increases at a percentage, often tied to inflation with a ceiling, and typically apply statewide with exemptions for newer construction and small owner-occupied properties.

Several states have adopted versions of this, and more have considered it.

Just cause eviction requirements, which frequently accompany rent caps and restrict the grounds on which a tenancy can be ended. These matter operationally as much as the rent limits do.

Local ordinances, which vary enormously and in some states are preempted by state law prohibiting municipalities from enacting them.

The exemptions that matter

Most modern rent cap statutes contain exemptions, and they determine whether a specific property is affected.

Common exemptions include newly constructed housing for a defined period after completion, owner-occupied properties below a unit threshold, single-family homes owned by individuals rather than entities, and certain subsidized housing.

Check the specific statute against the specific property. Investors have bought assuming an exemption applied and discovered otherwise.

What the evidence says

Worth stating carefully, since this area attracts strong claims from both directions.

Economic research generally finds that rent control benefits existing tenants in regulated units, providing stability and lower costs for those who remain.

It also generally finds reductions in rental supply over time, as owners convert units to condominiums, remove them from the rental market, or reduce investment in maintenance, and finds upward pressure on rents in the unregulated portion of the market.

Studies of specific policy changes have found both effects operating together.

Newer rent cap policies, which set higher caps and contain broad exemptions, are less restrictive than traditional rent control, and the research on their effects is still developing.

The reasonable summary is that these policies transfer value from owners to sitting tenants, provide real stability to those tenants, and have supply effects whose magnitude depends heavily on how restrictive the specific policy is.

What it means for underwriting

Rent growth assumptions are capped, literally. A model assuming five percent annual rent growth in a jurisdiction capping increases at five percent including inflation is not achievable.

Loss to lease may be uncapturable. A property with rents well below market, in a regulated jurisdiction, may take many years to close the gap — or may never, if vacancy decontrol is limited.

This is the most common error: buying on the basis of below-market rents in a jurisdiction where you cannot raise them.

Turnover changes meaning. In markets with vacancy decontrol, turnover allows a reset to market. In markets without it, turnover is pure cost.

Expense growth is not capped. This is the structural problem with rent caps from an owner's perspective. Insurance, taxes and maintenance can rise faster than the permitted rent increase, compressing margins over time.

A property with a five percent expense growth rate and a three percent rent cap loses margin every year, permanently.

Just cause provisions affect operations, including your ability to remove problem tenants, to renovate, and in some cases to take a unit off the market.

Assessing the political risk

For markets without current regulation, the question is whether it is coming.

Indicators worth watching: rent-to-income ratios in the metro, which drive the political pressure; the share of renters in the population; recent large rent increases, which generate the coverage that generates legislation; state preemption status, since preemption prevents local action; and active legislative proposals.

Markets that have seen rapid rent growth relative to incomes are precisely the markets where regulation becomes politically viable, which means the most attractive recent rent growth is itself a risk indicator.

The practical position

Know exactly what applies to the property you are buying, from the statute rather than from a broker.

Underwrite rent growth within the permitted limit where one exists.

Do not underwrite capture of loss to lease that regulation prevents.

And in markets where regulation does not exist but affordability pressure does, consider what your returns look like if a cap arrives during your hold.

General information about real estate markets and policy, not legal or investment advice. Rent regulation varies substantially by state and locality and changes frequently. Verify current law with a qualified attorney in the relevant jurisdiction.