Unit Deregulation: Owners formerly had the ability to raise rents by 20 percent when stabilized units were vacated, and they were able to deregulate units when rents reached $2,775 and/or the tenants had an income of $200,000 per year for at least two years. Now increases are limited to a percent set by a rent board that is indexed to inflation. In recent years, increases in rent have been set at 1-2 percent annually.

This is a particularly large blow to owners that bought buildings with the expectation of raising rents as tenants change. Because property values account for future rent growth, buildings have lost value that can't be regained unless the law is altered. Some owners likely will walk away rather than continue to operate at a loss.

Transaction activity has ground to a near-halt as the market digests the impact of the new law. The composition of the buyer base is also likely to change, as some owners exit the market while more opportunistic capital sources and those that left when acquisition yields fell to 3-4 percent in recent years will come back looking for bargains or distressed assets.

MCI, IAI: Owners formerly could increase rents in conjunction with capital improvements to properties. Now, however, landlords can only get rent increases on $15,000 of improvements over a 15-year period. Anyone who owns housing or lives anywhere near New York knows that $15,000 doesn't buy much in the way of improvements.

To some extent, the capital improvement limits were developed to combat fraud. Some property owners would put in for rent increases without improving the apartments as much as they claimed, and the city did not have the mechanism to enforce violations. That said, the limits on capital improvements are insidious for several reasons. Most importantly, it will lead to a deterioration of existing stock. If landlords can't recoup capital spent on improvements, they either won't make the improvements or will do it with lesser quality materials. That is to the detriment of the renter.

It's also particularly critical given that the law applies to older buildings that by definition are the most in need of fixing. New York is filled with pre-World War II apartment buildings that have – among other issues – old roofs, decaying HVAC systems and inadequate electrical systems. The law in effect encourages the deterioration of these buildings. Blackstone Group, owner of the 11,000-unit Stuyvesant Town and Peter Cooper Village in Manhattan, has announced that it will curtail all but legally-required improvements.

In some cases, owners will take units out of circulation when a long standing tenant moves out. The apartment's rent might be too low to justify the amount of work necessary to bring the unit back to rentable condition. A related impact is that deferring maintenance will lead to less work for tradesmen. Stories abound of contractors laying off workers such as carpenters, plumbers and electricians because of the reduction in demand for those services.

All these scenarios lead to the reduction of the type of stock affordable to middle-income households that legislators are trying to preserve and/or increase. The law does not apply to new construction, but new apartments in New York City are almost entirely aimed at the luxury segment with market-rate rents averaging more than $4,100 per year, according to Yardi Matrix. It's unlikely the pipeline of new supply will be severely affected, but it is possible that some developers might decide they don't want to build in New York in the event rent control laws are tightened in the future. Some 30,000 multifamily units are under construction in New York City, according to Matrix.

Making Owning a Losing Proposition

The unfortunate upshot is that rent control almost guarantees that the net income of stabilized properties will decline on an annual basis. Owners face a situation in which expenses – utilities, wages, property taxes, capital improvements – almost certainly will rise more than 1-2 percent annual rent increases. That was true before, but until now owners could make up for that with the rent increases from units that had new tenants or were otherwise deregulated. It's hard to imagine how many companies want to own a property in that situation, unless they can buy it for a distressed price.

Housing affordability is a serious problem affecting most of the renters in New York City, and the legislature is within its duties to address the issue. The specifics of the law, however, will create as many problems as it solves and could exacerbate the issue by decreasing and/or reducing the quality of apartment stock.

Paul Fiorilla is Director of Research at Yardi Matrix. The views expressed in this article are the author's and not those of ALM Media Real Estate Group.