By Jared Ebersole in Video 29 Jul 2026

The Manhattan Tower That Beat a New Zoning Law by One Day

Morgan Court rose 32 stories from a lot only 33 feet wide because its foundation was completed one day before New York's sliver-building restrictions took effect.

At 211 Madison Avenue, a 32-story apartment tower rises from a street frontage only 33 feet wide.

It is not merely skinny. It is abrupt. Morgan Court climbs roughly 20 floors above much of its Murray Hill neighborhood, immediately beside the 19th-century Church of the Incarnation. There is almost no visual transition between the historic church and the narrow wall of apartments above it.

New York changed its zoning rules to stop buildings like this.

Morgan Court survived because its foundation was finished one day before those rules took effect.

Where it is

211 Madison Avenue, New York, NY 10016

The story starts with a quantity New York treats almost like a physical substance: floor area.

Zoning determines how much floor space can be built on a property. A short building may use less than its maximum allowance, leaving unused development rights, commonly called air rights. Under specific conditions, those rights can be combined with an adjoining development site.

The rights do not prescribe a shape. They add legal floor area.

On a broad site, that extra space might produce a thicker building. On a narrow site, the same space can be stacked vertically. During the late 1970s and early 1980s, developers used zoning-lot mergers to assemble development rights behind very narrow street frontages and send residential towers upward.

The result was the sliver building.

A sliver could comply with the amount of floor area permitted on its merged zoning lot while looking wildly out of scale with the lot visible from the street. It might stand beside brownstones, churches, or apartment houses many times shorter. Neighbors objected to the shadows, blocked views, exposed walls, and the feeling that a loophole had converted a small site into a vertical needle.

The city responded in 1983.

New York's new height restriction applied to residential buildings on narrow zoning lots in several higher-density districts. Today, the Department of Buildings describes a sliver building as a tall residential building or enlargement 45 feet wide or less in the covered districts. Such buildings are generally limited to the width of the adjoining street or 100 feet, whichever is less.

Morgan Court would rise far beyond that limit.

Developer Mark Perlbinder had assembled development rights from neighboring property and planned a tower designed by Liebman & Liebman. The project offered only about 40 apartments, typically no more than two per floor, but gave those apartments light and sweeping Midtown views.

The critical work was underground.

Projects whose foundations were already completed could proceed under the prior rules. According to the historic documentation for the Murray Hill Historic District boundary expansion, Morgan Court's foundation was completed in March 1983, exactly one day before the zoning change went into effect.

That day turned a legal abstraction into a permanent part of the skyline.

The completed building attempted to acknowledge its neighbors. Its burgundy-colored brick was chosen to relate to the Church of the Incarnation, while long bricks were intended to play down the tower's height. The entrance passes through a gate into a landscaped courtyard rather than opening directly onto Madison Avenue.

But no brick can disguise the basic geometry.

The tower is 32 stories tall on a frontage narrower than many townhouses are long. Its thinness is the reason upper-floor apartments receive broad views, and the reason the building became a symbol of the zoning practice the city wanted to stop. It even appeared as the apartment tower in the 1993 thriller Sliver.

The law did not end every skinny building in New York. Different zoning districts, commercial uses, special permits, lot configurations, and later rules can produce narrow towers through other paths. Nor is the sliver restriction universally loved; critics argue that it blocks housing on small sites even when a project could otherwise satisfy density rules.

But 211 Madison Avenue captures the moment the city decided that permitted floor area was not enough. Shape and context mattered too.

The building is legal because construction and regulation crossed in the correct order. Had its foundation taken one additional day, Murray Hill would likely have a very different gap in its skyline.

New York tried to close a loophole.

Morgan Court was already standing in it.