Complete Condo ServicesCondominium conversion consultants 718-875-9100Call

Every unit, its own lot.

Complete Condo Services has guided condominium conversions since 1996. We take buildings of 2 to 200+ units from the first document to a separate tax lot for every unit, across New York City and the tri-state area.

Over 30 years and thousands of repeat clients.

A tax lot becoming condominium unit lots A city block drawn like a tax map. One lot is highlighted; its number changes to billing lot 7501 and twelve unit lots, 1001 to 1012, are listed beneath it. Block 1996tax map, simplified NORTH STREET SOUTH STREET 135 9111214 40383634 32302927 7 7501 25 × 100 Billing lot 7501 12 condominium units, each with its own tax lot 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012
Since 1996 we’ve helped generations of owners convert their buildings across New York City and the tri-state area. Most of our work comes from clients who’ve done it with us before.
1996the year we started
30+years of condominium conversions
1000sof repeat clients
200+units in a single building, and still growing

What we handle

One team owns your file from the first phone call until the last unit has its own lot. You always know what’s done, what’s missing and what happens next.

The conversion

Buildings of 2 to 200+ units: new construction, existing rentals, mixed-use and commercial.

  • Document gathering

    We tell you exactly what’s needed, collect it from owners, architects and surveyors, and chase what’s missing.

  • Attorney coordination

    We work alongside your real estate attorney so the offering plan and declaration have everything they require.

  • Attorney General filing

    Support preparing the submission to the New York State Attorney General.

  • Comment resolution

    Every comment from the AG tracked and answered until the plan is accepted.

  • DOF and DOB work

    Department of Finance tax lots for each unit, and the Department of Buildings items a conversion needs.

  • Plan amendments

    We watch your offering plan’s deadlines and help prepare extension and post-closing amendments before they lapse.

  • Closeout

    Final filings and loose ends, so the building is fully set up and ready to sell.

Recorded documents, on their own

No conversion needed. We take these from order to recording with the City Register.

  • Exhibit I and Exhibit III

    Zoning lot description and ownership documents for the Department of Buildings, with parties in interest identified, signatures arranged and the package recorded.

  • Confirmatory deeds

    Correcting or confirming the record of title: drafted, signed and recorded.

  • Easements

    Agreements between neighboring properties, prepared and recorded.

  • Restrictive declarations

    Declarations city agencies require, prepared to their specifications and recorded against the property.

Who calls us

Building owners and developers converting new construction or an existing building. Real estate attorneys who want the document chase and agency legwork handled. Architects and expediters who need recorded documents for a DOB job.

How a conversion runs

Every file moves through the same seven stages. We track each one by stage, missing items and next step, so nothing sits still.

  1. Intake

    We learn about your building, your goals and your timeline, open your file and lay out what’s ahead.

  2. Document gathering

    You get a checklist of exactly what’s needed. We collect it from you and your professionals and follow up on anything outstanding.

  3. Attorney coordination

    We give your attorney what the offering plan and declaration require.

  4. Attorney General filing

    The plan is submitted to the New York State Attorney General for review.

  5. Comment resolution

    The AG responds with comments. We track each one and get answers back quickly.

  6. DOF and DOB work

    The city side: Department of Finance tax lots for each unit and Department of Buildings requirements.

  7. Closeout

    Final filings completed. Your building is a condominium, ready for units to be sold.

Free tools

The lookups we use every day, open to everyone. Bookmark this page.

NYC property lookup

Search any New York City address or block and lot and see it all on one page.

  • Owner, building class and zoning
  • Tax assessment and live tax balance
  • ACRIS deeds and mortgages
  • Open violations
  • Condo billing lot and unit lots
  • Units, stories and year built
Open property lookup

Conversion terms, explained

The words you’ll hear during a conversion, in plain English.

Offering plan
The disclosure document that must be filed with and accepted by the New York State Attorney General before units can be sold.
Declaration
The recorded document that legally creates the condominium, with its bylaws.
Tax lot apportionment
The Department of Finance process that gives each unit its own tax lot and tax bill.
Billing lot
The lot number, starting at 7501, that the city uses for the condominium as a whole. Units get their own lots, starting at 1001.
Amendment
An update to an accepted offering plan. Plans need regular amendments to stay current.
ACRIS
The City Register’s online system where deeds, mortgages and declarations are recorded and searched.
Exhibit I
A Department of Buildings document describing the zoning lot and everyone with an interest in it.
Restrictive declaration
A recorded promise about how a property will be used, often required by a city agency.

Thinking about converting?

You don’t need all of this to call. These are the usual starting points, and tracking down what’s missing is part of our job.

Talk to us about your building
  • Building address, block and lot
  • Current deed and ownership entity
  • Certificate of occupancy, or its status
  • Architectural floor plans
  • Survey of the property
  • Number and type of units
  • Your attorney’s contact details
  • Mortgage and lender information

Questions

Don’t see yours? Call us. After 30 years, we’ve probably heard it.

What is a condominium conversion?

It’s the legal process of dividing a building into units that can each be owned, sold and mortgaged separately. In New York it involves an offering plan reviewed by the Attorney General, a condominium declaration, and city filings that give every unit its own tax lot.

What size buildings do you handle?

Any size, from 2-unit buildings to 200 units and beyond: small multi-family homes, mid-size and large apartment buildings, new construction and mixed-use properties.

Where do you work?

All five boroughs of New York City and across the tri-state area. Our office is at 610 Broadway in Brooklyn.

Do I still need an attorney?

Yes. The offering plan and declaration are legal documents prepared by an attorney. We aren’t a law firm. We work alongside your attorney and handle the coordination, document gathering and agency work around them.

How long does a conversion take?

It depends on the building, how quickly documents come together, and review times at the Attorney General and city agencies. After intake we’ll give you a realistic estimate for your building.

My conversion is already started. Can you take it over?

Yes. We step into stalled or half-finished files, work out what’s missing and move them forward.

What happens after the offering plan is accepted?

The plan has to be kept current with amendments. We track the deadlines and help prepare extension and post-closing amendments so it doesn’t lapse.

Do you only work on conversions?

No. We also handle Exhibit I and III, confirmatory deeds, easements and restrictive declarations as standalone jobs, from order through recording.

Tell us about your building.

718-875-9100

Call with the address and what you’d like to do. We’ll tell you how we can help.

Wire fraud advisory. Always confirm wiring instructions by phone directly with our office before sending funds. We never change payment instructions by email alone.