By Reshmee Jugmohun, REALTOR®, Licensed Real Estate Salesperson in New Jersey, Prominent Properties Sotheby's International Realty. Published September 8, 2026.

The difference between a townhouse, a condo and a single-family house is not the shape of the building. It is what you own. In a condominium you own the interior of your unit and share ownership of everything else; in a townhouse you usually own the structure and the land under it; in a single-family house you own all of it, and all of the maintenance that comes with it.

That distinction matters more than it sounds, because two townhouses that look identical from the street can be legally different from each other. One can be a condominium and one can be owned outright. Nothing about the brickwork tells you which. It is written in the deed, and it changes what you are buying, what you pay every month, and what happens when the roof needs replacing.

This is written for someone deciding between property types in Bergen County. Every legal point below is New Jersey specific and cited, because the national articles on this question describe a generic American condominium that does not match how New Jersey actually works.

What do you actually own in each?

Ownership is the root of every other difference, so it is worth being precise about all three.

In a condominium, you own your unit and an undivided interest in the common elements. Under the New Jersey Condominium Act, N.J.S.A. 46:8B-3, a condominium is created by a master deed and provides for ownership of units together with an undivided interest in common elements appurtenant to each unit. The same statute defines common elements to include the land described in the master deed and, as to any improvement, the foundations, structural bearing parts, supports, main walls, roofs, basements, halls, corridors, lobbies, stairways, elevators, entrances and exits, as well as yards, gardens, walkways, parking areas and driveways, excluding anything specifically reserved or limited to a particular unit.

Read that list again, because the roof is on it. In a condominium, the roof over your head is usually not yours. It belongs to everyone, which is why everyone pays for it.

In a townhouse held in fee simple, you own the structure and the land beneath it outright. Fee simple is the ordinary full ownership most people picture when they think of owning a house. Your neighbor's wall touches yours, but the ownership stops at the property line rather than dissolving into a shared pool.

In a single-family house you own the building, the land and every obligation attached to both. No association, no shared elements, no monthly charge, and nobody else scheduling the work.

The word "townhouse" describes architecture. The words "condominium" and "fee simple" describe ownership. They answer different questions, and confusing them is the single most common mistake buyers make on this topic.

Why can two identical-looking townhouses be legally different?

Because "townhouse" is a building style and it carries no legal meaning on its own. A row of attached homes can be organized as a condominium, in which case the owners hold units plus a share of the common elements. The identical row down the road can be subdivided into individual lots, in which case each owner holds their own parcel in fee simple.

From the sidewalk the two are indistinguishable. On paper they are entirely different purchases.

The practical consequences separate immediately. In the condominium version, the association is responsible for the roof, the siding and the grounds, and you pay a monthly assessment toward that. In the fee simple version, your roof is your problem and your bill. There may still be an association handling shared driveways or open space, or there may be none at all.

How to find out, and it takes one question: ask whether the property is part of a condominium and ask to see the master deed. Under N.J.S.A. 46:8B-9 the master deed is the instrument that sets out what a condominium contains, so if there is one, the property is a condominium. If there is no master deed, it is not, whatever the listing calls it.

Ask before you make an offer rather than during attorney review. It is a question with a one-word answer and it changes the arithmetic on everything else.

Listing language will not settle it for you, and it is not designed to. Terms like attached, semi-detached, townhouse-style and villa describe how a building looks and sits on its lot. They are architectural descriptions written to help a buyer picture the property, and none of them states the form of ownership. A property can be marketed as a townhouse and be a condominium, or marketed as a condo and sit in a building that looks nothing like the word suggests. The listing tells you the shape. The deed tells you the purchase. When the two seem to disagree, the deed is the one that is right.

What does each cost to run?

Neither arrangement is free. The difference is who schedules the work and whether you pay in predictable monthly amounts or unpredictable large ones.

With an association you pay a regular assessment covering the shared obligations, which typically include the elements listed in the master deed: roofs, exterior walls, grounds, snow clearing on common areas, and often water or sewer in older buildings. The amount is set through the association's budget process. It is predictable month to month and it is not optional.

Without an association you pay for the same work, just irregularly and on your own timing. A roof is a roof whether a board schedules it or you do. The single-family owner who has no monthly fee is not avoiding the cost, they are self-insuring against it and choosing when to spend.

There is one New Jersey provision on this that almost no national article mentions, and it is worth knowing before you compare two monthly figures. The Municipal Services Act, N.J.S.A. 40:67-23.2 through 23.8, requires every municipality either to provide certain services to a qualified private community or to reimburse the community for them. The covered services are removal of snow, ice and other obstructions from the roads and streets; lighting of the roads and streets, to the extent of paying for the electricity, though not the installation or maintenance of the equipment; and collection of leaves and recyclable materials, and collection or disposal of solid waste, along the roads and streets.

The purpose of the Act is to stop residents paying twice, once through property taxes and again through association fees, for the same services. There are real limits: the municipality is not required to service a road that has not been accepted for dedication to public use or that does not meet municipal standards for dedication, except as to width.

The question to ask, and most buyers never do: does this association receive Municipal Services Act reimbursement, and is it reflected in the current budget? An association that qualifies and does not claim is one that could be charging its owners less.

What is a special assessment and why does it matter?

A special assessment is a charge levied on owners over and above the regular fee, usually because a large shared expense has arrived that the reserves do not cover. A roof replacement, a facade repair, a parking deck, a boiler.

This is where buyers get hurt, and it is entirely foreseeable. A building with a low monthly fee and thin reserves is not cheaper than one with a higher fee and healthy reserves. It is the same cost deferred, and it arrives as a single bill at a time you do not choose.

What to ask for, in writing, before you commit: the reserve study if one exists, the last two years of budgets, the most recent financial statements, the minutes of recent board meetings, and a direct question about any special assessment that has been discussed, voted on or is pending. Board minutes are where a coming assessment shows up first, usually months before it becomes a bill.

A low fee is a question, not a feature. Treat it as one.

Does the property type change your mortgage?

Yes, and this is high level only, because financing is a lender's territory and not mine. Speak to a licensed mortgage professional about anything specific to your situation.

A condominium purchase involves approval of the project, not only of you. Lenders assess the association as well as the borrower, and look at things like the proportion of units that are owner-occupied rather than rented, the health of the reserves, whether any single entity owns an outsized share of the units, and whether litigation is pending against the association.

The practical consequence is that a condominium can be difficult to finance for reasons that have nothing to do with the buyer. A financially healthy applicant can be declined because of the building. That is a real risk in a way it simply is not for a fee simple house, and it is worth establishing early rather than at the point of underwriting.

A townhouse held in fee simple is generally financed like any other house, because it is one. Which brings the question back to the master deed and whether the property is a condominium at all.

What does each type trade against the others in Bergen County?

Every one of the three trades something concrete, and the trades are the same everywhere. What changes locally is what inventory actually exists.

A condominium trades control for predictability. Somebody else schedules the roof, the snow and the grounds, and you pay monthly whether or not you would have chosen that timing or that contractor. You also gain a vote and lose a veto.

A fee simple townhouse trades shared cost for direct responsibility, usually on a smaller lot than a detached house. You own your structure and your land, you carry your own roof, and you may still sit inside an association for whatever genuinely is shared.

A single-family house trades monthly predictability for full autonomy. No fee, no board, no restrictions on the exterior beyond municipal ones, and no shared reserve to draw on when something large fails.

None of that describes who should buy which. It describes what each one is, and what you are optimizing for is yours to decide.

On local inventory, the condominium stock in Bergen County is not spread evenly. It concentrates in particular boroughs rather than appearing everywhere, so the property type and the town are not independent choices. Current listings by town are the only reliable read on what exists right now: Fort Lee condos, Elmwood Park condos, Ho-Ho-Kus condos, Upper Saddle River condos and East Rutherford condos. The wider county is on the Bergen County page.

If you are choosing the town before the property type, what living in Bergen County is actually like covers how the county is put together, and the Oakland buyer guide is a worked example of reading one town properly.

What should you read before you commit to an attached home?

Five documents, and they are all obtainable before you are committed.

The master deed. It defines the units, the common elements and what belongs to whom. N.J.S.A. 46:8B-9 sets out what it must contain. Everything else follows from this document.

The bylaws. How the association is governed, how the board is elected, how decisions are made. New Jersey amended the Planned Real Estate Development Full Disclosure Act in 2017, at P.L. 2017, c.106, following litigation involving the Radburn Association. Those amendments established that all unit owners are members of the association and set out election participation rights, including the right of resident owners in good standing to nominate any unit owner in good standing, to appear on the ballot and to be elected to the board.

The budget and the most recent financial statements. What is collected, what is spent, and what is held in reserve.

The reserve study, if one exists. This is the document that tells you whether the fee is realistic, and its absence is itself informative.

Recent board minutes. Where a coming special assessment appears before it becomes a bill.

Read all five with a New Jersey real estate attorney. These are legal instruments and interpreting them is legal work. I hold an LLB and I do not practice law, so that is not mine to do. The buying process page sets out where that sits in the sequence.

If you are weighing an attached home against a detached one in a specific Bergen County town, I am reachable through rjc.realestate.

Frequently Asked Questions

What is a PUD and how does it differ from a condominium?
A planned unit development is a form of land planning rather than a form of ownership. Owners in a PUD typically hold their lot and home in fee simple while an association owns and maintains shared open space or amenities. The distinction from a condominium is the same one that runs through this article: in a condominium the shared parts are owned collectively as common elements, in a PUD they are usually owned by the association itself.

Can a New Jersey condominium association foreclose on a unit?
Yes. Under N.J.S.A. 46:8B-21 an association has a lien on each unit for unpaid assessments, and liens for unpaid assessments may be foreclosed by suit brought in the name of the association in the same manner as a foreclosure of a mortgage on real property.

Does an association lien outrank my mortgage?
Partly. N.J.S.A. 46:8B-21 gives the association's lien a limited priority over prior recorded mortgages and other liens, except municipal liens and liens for federal taxes. That priority is capped at the aggregate customary assessment for the six-month period before the lien is recorded. The statute defines a customary assessment as periodic payments for regular and usual operating and common area expenses under the annual budget, and excludes reserves for contingencies, late charges, penalties, interest and collection or enforcement costs.

Can an association stop you renting your unit out?
Restrictions on leasing are common and they live in the master deed and bylaws rather than in general law, so the answer is specific to the property. Some communities cap the proportion of units that may be rented, impose minimum lease terms, or require board approval of tenants. If renting the unit matters to you, read those documents with your attorney before you make an offer.

What is a right of first refusal in an association?
It is a provision in the governing documents giving the association, or sometimes other owners, the opportunity to match an offer before a unit can be sold to an outside buyer. Where it exists it adds a step and a timetable to the sale, so both buyers and sellers need to know about it early.

What insurance does a condominium owner need that a house owner does not?
The association typically carries a master policy over the building and common elements, and the unit owner carries a separate policy covering the interior, personal property, liability and, depending on the master policy's structure, a share of any deductible. The dividing line between the two policies comes from the master deed, so the two documents have to be read together. An insurance professional should confirm the specifics for the actual unit.

How does a housing co-operative differ from a condominium?
In a co-operative you do not own real property at all. You own shares in a corporation that owns the building, and those shares carry a proprietary lease giving you the right to occupy a particular unit. Because the asset is shares rather than real estate, the financing, the approval process and the transfer mechanics all differ from a condominium purchase.

Who is responsible for windows, doors and roofs in an attached home?
It depends entirely on how the master deed allocates them, which is why the document matters so much. Roofs are commonly a common element, while windows and doors are often designated limited common elements serving a single unit, an arrangement that can put the maintenance on the owner and the replacement on the association or the reverse. Do not assume; look it up for the specific property.

Can you change the exterior of an attached home?
Usually only with approval. Where the exterior is a common element the association controls it, and even where you own your structure outright the governing documents may impose architectural standards on colors, doors, fencing and landscaping. Municipal permit requirements apply on top of that, independently.

What happens when an association votes to raise the monthly fee?
Regular assessments follow from the association's annual budget, so a fee increase normally arrives through the budget process set out in the bylaws rather than as an arbitrary decision. The bylaws govern how the board adopts a budget, what notice owners receive and what say they have. If you want to know how a particular association handles it, the bylaws and the past two years of minutes will show you.