Keeping the city apartment as a pied-à-terre

Two homes create two fixed-cost schedules, even if the city apartment is used only occasionally. Before keeping it after a move, price the apartment as an ongoing commitment and establish that the intended use fits the building, financing and tax position.

Begin with annual maintenance or common charges, property tax where separately billed, financing, insurance, utilities and known assessments. Add management or care during absences. Then compare that verified cost with how the apartment will actually be used.

Building permission comes first

For a co-op, have counsel review the proprietary lease, house rules and relevant approvals for non-primary use. For a condominium, review the governing documents and any applicable restrictions. If renting the apartment is the fallback plan, investigate that separately; permission for occasional owner use does not establish permission to sublet.

The lender and insurer also need the intended occupancy described accurately. A decision to retain the apartment should be evaluated on terms that apply to that use, rather than assuming every existing arrangement continues unchanged.

New York City now has another property-tax question

For property-tax years 2026–27 and 2027–28, the annual surcharge uses the Department of Finance market value, not the sale price. The rate applies to that DOF value. Charges first appear on the bill due January 1, 2027. NYC Department of Finance.

A property used as a qualifying primary residence can be exempt, including use by the owner, a tenant or an immediate family member. Entity and trust ownership have additional specified categories. Appearing on the supplemental roll does not by itself establish a bill. Resolve the unit’s DOF valuation and exemption status before treating a retained apartment as a fixed-cost choice.

Income-tax residence is a separate test

Keeping an apartment can also matter to New York State and City residency analysis. Domicile, a maintained permanent place of abode and days present are part of the applicable tests. Owning a second home elsewhere does not settle them. New York residency guidance.

Have the tax adviser model the intended use before claiming savings from leaving the city. Property-tax surcharge treatment and income-tax residence are separate questions; an answer to one should not be substituted for the other.

Give the retained equity a purpose

Compare the ongoing cost and equity tied up in the apartment with realistic alternatives for city stays. Include sale costs in a disposal scenario, and avoid treating projected rent or future appreciation as guaranteed funding.

The right comparison is personal to the actual apartment and its use. A useful pied-à-terre can justify substantial carrying costs. The decision becomes clearer when those costs, the permitted use and the tax analysis are written down before the suburban or destination purchase closes.