The lineage of our firm can be traced back to Stephen Ludlam who received an appointment as “City Surveyor” by Mayor Dewitt Clinton in 1809.  The firm is in possession one of the largest plants of record survey data in the New York City area. This includes the computations, field notes, filed property maps and plats prepared by the firm and our predecessors. The scope of services of the firm include, but are not limited to, Accident Surveys, Boundary Line Determination, Construction Layout, Expert Witness Testimony, Title Surveys, Elevation Studies, and Topographical Surveys.

Professional Affiliations:  The Association of City Surveyors of Greater New York, The New York State Association of Professional Land Surveyors, Nassau Suffolk Civil Engineers, Inc. and the National Society of Professional Surveyors.


Types of Survey We Perform

Title / Asbuilt / ALTA/NSPS Surveys

A Title/Asbuilt Survey is used in the transfer of title of a real property.  The survey shows the boundary of the property with deed references, structures and improvements located on the property, and along the boundary, ie: fences, walls, hedges, sheds, building and encroachments of improvements beyond the property lines.  The Title Survey also includes easements, right of ways and indication of adverse possession.

​ALTA/NSPS Survey is a Title Survey meeting the requirements of ALTA/NSPS guidelines and survey procedures.

Architectural / Topographical / Street Surveys

In addition to the information shown on the Title Survey, Architectural / Topographical / Street Surveys include ground topography; roadway and sidewalk improvements; utilities above and below grade and all the necessary information to be used by architects and engineers for the designs of new structures, and filing with the appropriate city agencies, ie: Building Department, DEP, Etc. 

Construction Surveys

Stakeout Survey: This Survey is for staking (marking) buildings and property lines before the structure is built. Building Stakeouts are used for the layout of buildings establishing the location and height for future construction.

Foundation Check Survey: This survey is performed after completion of foundation to ensure the accurate location and height of foundation walls. 

Axis Lines / Anchor Bolt Layout  

Boring Location 

Pile Layout / Location 

Final Survey / Certificate of Occupancy:  Survey prepared for the building department indicating the location of new improvements for compliance with the approved plan.

Other Type of Surveys We Perform

  • Settling Study 
  • Accident Survey 
  • Expert Testimony / Court Appearance
  • Preparation of Legal Description 
  • Subdivision Surveys/ Area Calculations 
  • Grave Layout 
  • ULURP Application Maps 
  • Alteration Maps 
  • Damage Maps 
  • Acquisition Maps