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An apartment combination is the stuff of lore for many New Yorkers, but if you're one of the lucky few for whom that opportunity may present itself, there are many things to consider before making the offer on your neighbor's apartment. Theoretically, combining two adjacent co-op or condo apartments requires nothing more than removing a kitchen and creating a doorway-sized opening in a wall to join the two units. However, creating a new apartment that actually feels like a home in terms of flow, functionality and durability will require a much more extensive renovation.

Before you take the plunge, it’s important to consider the costs associated with combinations, both to make sure your budget can foot the bill, but also to make sure the value of the apartment you plan to create will be worth more than the sum of its parts in a resale.

Start with your building

Confirm your building will allow a combination, and find out as much as you can about what the process will entail. Depending on your particular circumstances, it may be desirable to purchase hallway or other common space from the building.

It is also important to understand the building's rules for this type of renovation, which is usually contained in the alteration plan. Your building's fees for renovation, use of elevators, protection of hallways, and potential penalties for exceeding the scheduled timeline will all factor into your budget. Costs will also vary based on what your building will require of your renovation, for example if you must update all electrical during a renovation or when the building requires you engaged a structural engineer.

Understand the costs with a team of experienced professionals

While the costs of a renovation can range from $200-$500 a square foot, this does not begin to address the question of what is a reasonable budget for a particular combination. Vertical combinations are more expensive than adjacent, but the condition of the respective units and the final vision you have for the combination (custom features are a major driver of cost) will make a huge difference.

Apartment combinations almost always require an architect. Many architects will charge a percentage to provide full-scale service from design and drawings to construction management, but if you are on a budget, it may be possible to reach another arrangement such as hourly or a flat fee. It is most important to be upfront about your expectations on scope of work and budget when speaking to architects.

Similarly, it is important to get quotes from several contractors to get a sense of what it will cost to get the work done. At a preliminary phase, it is difficult for contractors to estimate costs without drawings or a sense of the level of finishes desired for the combination. A trusted architect may be able to help you formulate a plan and anticipate other professionals you may need to hire (an expeditor to submit plans and navigate the permitting process, asbestos abatement, structural engineering certifications, or major electrical or plumbing upgrades).

The importance of a thoughtful layout

While there are legal requirements for light and ventilation when creating or moving kitchens, bathrooms and bedrooms, other factors are important to consider when creating your new floorplan. All too often, combination apartments have odd room sizes, weird areas of “dead” or unusable space, or just seem to flow weirdly. An experienced architect or designer will be able to offer you advice on how best to configure your new space, and create a floorplan that will maximize both functionality and value of your home. Keep in mind that not every combination may result in a desirable larger home that feels like it was meant to be a single space.

Moving major systems: kitchens and bathrooms

Other than in a few specific situations, New York City only permits one kitchen per apartment. A kitchen demolition can run anywhere from $5,000 to $8,000, but it’s important to consider whether your demo requires moving plumbing or waste risers. Plumbing risers are the most expensive thing to move around. Even if one apartment has a bathroom that lines up with the other apartment’s kitchen, you won’t necessarily be able to blast through the wall to create a giant kitchen or bathroom. The risers—which begin in the basement and end at the top floor—likely serve an entire line of apartments, so buildings usually forbid moving them for safety reasons, and to avoid major disruption to other building residents. If you are allowed to shift a riser line, keep in mind that it will likely add a at least $10-20K to the cost of your renovation.

The devil is in the details

Combining apartments that are mismatched in quality (e.g. if one is in estate condition) poses additional design challenges. However, even if you’re combining two renovated apartments, blending finish work between the two will almost always require updating trim, moldings, doors and windows. Surprisingly, this finish work may be one of your largest expenses, as it will typically involve custom millwork, framing, and built-ins. High-end custom millwork, such as full height bookcases, storage cabinets or elaborate wall panels, can run you anywhere from $200 per linear foot to $800 per linear foot.

Look at the big picture

While much of our focus here has been on the costs, ultimately the goal is to create value. Speak to an experienced real estate agent to get a sense of a realistic offer on the neighboring apartment and what the resulting combination may be worth. Their guidance may even shape your renovation plans including decisions on number of bedrooms/baths that would be most desirable as well as what level of finishes are likely to be appropriate at a certain price point.


Understanding the Local Law 11 in NYC and scaffolding rules.

When working with buyers, especially those looking at pre-war homes, one of the first questions I ask is when the last Local Law 11 cycle was completed. Local law 11 work, which addresses maintenance to the facade and exterior of a building, is expensive and often cause for a building to levy an assessment (a short term increase in monthly charges paid by owners.) While most buyers are far more concerned with kitchen renovations and closet space during their home search, in NYC, general building condition and any impending façade work can be an another important factor to remember.

Falling debris in the 1970s led Mayor Ed Koch to pass Local Law 10 to make sure building exteriors in the city were safe. All buildings that are 6 stories and higher must be inspected. The law evolved when Local Law 11 was passed in 1998, which created additions regulations.

Additions to the law include the following:

-The entire building must be inspected, not just the sides that face the street

-All inspections must include scaffolding, instead of visual inspection from a distance

-Buildings must complete a report on any deterioration and then classified as "Safe," "Unsafe," or "Safe with a Repair and Maintenance Program"

Buildings are on a staggered 5 year cycle to inspect and complete any necessary repairs. You can learn more about Local Law 11 here.


Buying landmarked property in NYC.

While New York City is recognized around the world for its 20th century skyscraper-filled skyline, it is predominantly a 19th century city, architecturally speaking. Much of New York’s architectural distinction derives from its rowhouses. Often referred to as "brownstones," NYC's rowhouses are, in fact, widely varied and include countless different styles. These standard, narrow, three-to-five story residences which were constructed to house an expanding middle class population more than a century ago. These distinctive residences are the dominant building type in the majority of the City’s historic districts, and their care and maintenance have a substantial impact on each neighborhood's unique character.

There currently are more than 100 historic districts throughout New York City, all of which are as diverse as the owners and residents who live in them. They encompass a variety of styles, from the simple brick buildings of Ridgewood North Historic District, Queens to the elegant Beaux-Arts limestone maisonettes of the Upper East Side and the ornate Queen Anne and Romanesque Revival style 19th-century mansions and rowhouses of Crown Heights North in Brooklyn.

In NYC, The Landmarks Preservation Commission (LPC) is the Mayoral agency charged with designating and regulating these districts, as well as stand-alone landmarks. In order to protect these special properties, the Landmarks Law requires their owners to apply to LPC to obtain permits for certain types of exterior work before the work begins. The decision to issue a permit rests on whether the proposed work is “appropriate” to the character of a building and/or the surrounding district.

Specifically, the LPC must give advance approval to any alteration, reconstruction or demolition affecting a landmarked property. Approval by the LPC is required for any exterior work, except for routine maintenance or repairs, such as replacing a broken window pane or removing small amounts of graffiti. Interior work to a landmarked property generally does not require LPC approval except when: (i) the work will affect the exterior of the property; (ii) the interior of the property has been landmarked; or (iii) the work affecting the interior of the landmarked property requires a building permit.

Examples include changing exterior paint color, porch style, door and window frames and treatments, and much more - specific info can be found on the LPC's website, where manuals based on property types and locations are available.

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Isil Yildiz Team

110 5th Avenue

New York, NY 10011


985-714-4470

Isil@Compass.com

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Compass is a licensed real estate broker and abides by Equal Housing Opportunity laws. All material presented herein is intended for informational purposes only. Information is compiled from sources deemed reliable but is subject to errors, omissions, changes in price, condition, sale, or withdraw without notice. No statement is made as to accuracy of any description. All measurements and square footages are approximate. Exact dimensions can be obtained by retaining the services of an architect or engineer. This is not intended to solicit property already listed.

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