Do I need a builder before I buy the lot?

You need a feasibility read before you buy: what can be built, what the land allows, and what demolition will require. Whoever gives it should be able to price the house as well as judge the lot.

Is a teardown cheaper than renovating?

Not as a rule. It depends on the existing structure, what zoning allows the new house to be, the land's constraints, and demolition costs. The comparison can only be made on a specific property.

How long do Bergen County permits take?

Each borough runs its own construction office and, where needed, its own zoning and planning boards; NJDEP adds its own review where land features are regulated. We do not publish a timeline, because none holds across boroughs.

Can I rebuild on the same footprint without new State permits?

Sometimes. NJDEP provides specific routes for reconstruction in flood hazard areas and near wetlands, each with conditions. Whether one applies depends on the lot, which is why the land review comes before the contract.

Buying a Teardown in Bergen County — B&Co. Design

Before buying a Bergen County house to tear down and rebuild, establish four things about that specific property: what the borough’s zoning lets you build, whether NJDEP regulates any part of the land, what the State requires before demolition, and who will hold the New Jersey new-home-builder registration. The order matters, because each answer can change what the lot is worth to you.

Why the order matters

A teardown is priced as land. What the land is worth depends on what can be built on it — and that is decided by the borough, by the State’s environmental rules, and by conditions underground that no listing describes. A buyer who learns these after contract is negotiating from the wrong number. A buyer who learns them before the offer is pricing the right one.

Zoning is set by the borough, not the county

Bergen County has no single building rulebook for houses. Each of the Northern Valley’s boroughs — Closter, Alpine, Tenafly, Demarest, Cresskill, Haworth, Harrington Park, Norwood, Old Tappan and their neighbours — sets its own setbacks, lot and building coverage, height limits and, where it applies, historic-preservation review. Two lots of the same size a mile apart can support very different houses.

What to establish before the offer:

The lot’s zone and the bulk standards that apply to it, from the borough’s own zoning ordinance.
Whether the existing house sits on a nonconforming lot — undersized, or too narrow for the current rules — which can mean a variance before a new house can be built.
Whether the property sits in a historic district or carries any recorded restriction.

We do not publish setback or coverage figures here: they differ borough by borough, and they change. The only reliable source is the ordinance in force on the day you ask, read against a survey of the lot.

The State may regulate part of the land

New Jersey’s Department of Environmental Protection says plainly that building, reconstructing, relocating or elevating a single-family home “may result in disturbances to ‘special areas’ regulated by the Department”, and that such work “may require multiple permits … prior to site preparation or construction.” Three features matter most on Bergen County lots:

Flood hazard areas and riparian zones. NJDEP treats the construction, reconstruction, relocation or elevation of a single-family home in a flood hazard area and riparian zone as a regulated activity. Depending on where the house sits and what is proposed, the route may be a permit-by-certification, a general permit, or an individual permit (N.J.A.C. 7:13).
Freshwater wetlands and transition areas. New construction within wetlands, their transition areas or State open waters requires a Freshwater Wetlands permit or a transition-area waiver (N.J.A.C. 7:7A). Rebuilding within the original footprint after a house is demolished is treated under specific, time-limited conditions — worth confirming early rather than assuming.
Septic. NJDEP does not permit a new septic system in freshwater wetlands or transition areas except through an individual permit or a hardship waiver. On an unsewered lot, this can decide the project.

NJDEP’s own mapping application gives a first read, and the Department describes it as a rough one: the presence or absence of these areas “can be roughly determined” from the map. A determination on the actual lot comes from a site-specific review.

What the State requires before demolition

Under New Jersey’s Uniform Construction Code (N.J.A.C. 5:23-2.17), a demolition permit is not issued until:

releases are obtained from every utility that served the property;
any abandoned well is certified as sealed by a licensed well driller;
written notice has been given to the owners of adjoining lots;
the owner or agent has notified the construction office that friable asbestos and asbestos-containing material has been, or will be, properly abated.

Buried heating-oil tanks are common under older Northern Valley houses. New Jersey handles residential tanks through NJDEP’s Unregulated Heating Oil Tank program (N.J.A.C. 7:26F). Removing an underground tank requires a closure-certified individual working for a closure-certified firm; if a discharge is found, the process ends with an NJDEP No Further Action letter. Knowing whether a tank exists, was removed, or was abandoned in place — and whether an NFA letter was issued — belongs in due diligence, not in the demolition schedule.

Know who is registered to build the house

New Jersey requires every builder of new homes to register with the Department of Community Affairs; the only exception is an individual building a home for their own use. Registration carries the State’s new-home warranty:

Year one: defects in materials and workmanship across nearly all of the home.
Year two: heating and cooling, electrical and plumbing systems, and major structural defects.
Years three to ten: major structural defects — actual damage to a load-bearing portion of the home.

A home-improvement contractor registration is a different credential. The Division of Consumer Affairs states that “construction of a new residence is not considered a home improvement.” Ask for the builder’s DCA registration, and check it on the Department’s service portal.

The budget to ask for before you commit

The price of the lot is the first line of the budget, not the budget. A complete estimate before the offer accounts for:

the land itself, and the costs of closing on it;
demolition, including utility disconnection, asbestos abatement, and any tank or well work;
site work — grading, drainage, driveway, utility connections;
architecture, engineering and survey;
municipal and State permits;
construction;
landscaping and exterior finish;
carrying costs for the months between closing and completion;
a contingency.

We publish no per-foot figures: they vary with the lot, the design and the year, and a number without those three is not an estimate.

What “one firm” changes

B&Co. is a brokerage and a design-build firm under one roof. For a teardown, the practical difference is timing: the feasibility read — zoning, land constraints, demolition requirements, a working budget — happens before the offer, because the people who price the lot are the people who would price the house. A lot sourced privately is sourced the same way B&Co. Realty sources any private property; see how an off-market sale works in New Jersey.

In the purchase, B&Co. Realty works as a licensed New Jersey transaction broker, and the relationship is set out in a written brokerage-services agreement.

A private consultation is the right first step when a specific property is in view.

What this page is not

This page explains the questions to settle before buying a lot to rebuild. It is not legal, engineering or environmental advice, and it does not describe any specific property. Zoning, permit and environmental questions are answered for a given lot by the borough, NJDEP and licensed professionals.

Sources: NJDEP, Division of Land Resource Protection, “Single Family Home” and “Permit Applicability”; N.J.A.C. 5:23-2.17, demolition or removal of structures; NJDEP’s Unregulated Heating Oil Tank Program; NJ Department of Community Affairs, New Home Warranty for Consumers; NJ Division of Consumer Affairs, Home Improvement Contractor FAQ. Each was opened in a browser and reviewed 25 September 2026.

Buying a teardown to build a custom home in Bergen County: what to establish before you buy