Preconstruction Surveys and Monitoring Requirements in NYC

If you are performing construction work in New York City there is a very good chance that you will have to perform a preconstruction survey and/or perform monitoring of neighboring properties. The preconstruction survey and the monitoring often go hand-in-hand. The preconstruction survey will identify the existing conditions of neighboring properties before work starts. The monitoring protocol will provide a means for keeping an eye on the adjacent buildings to determine whether there is any movement or vibration that could or is causing damage.

Preconstruction surveys are required by NYC Construction Code Section 3309.4.3 Monitoring is required by NYC Construction Code Section 3309.4.4

When is a preconstruction survey required to protect an adjoining property?

Pursuant to Section 3309.4.3 of the New York City Construction Code a preconstruction survey is required in the following instance:

No excavation work to a depth of 5 feet to 10 feet (1524 mm to 3048 mm) within 10 feet (3048 mm) of an adjacent building, or an excavation over 10 feet (3048 mm) anywhere on the site shall commence until the person causing an excavation to be made has documented the existing conditions of all adjacent buildings in a preconstruction survey

When is monitoring required to protect an adjoining property?
Pursuant to Section 3309.4.4 of the New York City Construction Code:

During the course of excavation work the following shall be monitored in accordance with Section 3309.16:
1.Buildings that are within a distance from the edge of the excavation that is equal to or less than the maximum depth of the excavation.
2.Historic structures that are contiguous to or within a lateral distance of 90 feet (27 432 mm) from the edge of the lot where an excavation is occurring.


Monitoring is not required for excavations to a depth of five feet (1523 mm) or less, provided:
1.The excavation occurs more than 5 feet (1524 mm) from all footings and foundations; or
2.Where the excavation occurs within five feet (1524 mm) or less from a footing or foundation, such excavation does not occur below the level of the footing or foundation.

How do I get access to perform a preconstruction survey and install monitoring?

Naturally in order to perform a preconstruction survey and install the requisite monitoring you will have to enter your neighbor’s property. But you can’t just trespass on your neighbor’s property. You need permission to enter the property, perform the survey and then install the monitoring.

Pursuant to Section 3309.1.1 of the NYC Construction Code:

Where a construction or demolition project will require access to adjoining property in accordance with this section, written notification shall be provided to the adjoining property owner at least 60 calendar days prior to the commencement of work. Such notification shall describe the nature of work, estimated schedule and duration, details of inspections or monitoring to be performed on the adjoining property, protection to be installed on the adjoining property, and contact information for the project.
Where no response is received, a second written notification shall be made no more than 45 calendar days, and not less than 30 calendar days, prior to the commencement of work.

Further, pursuant to Section 3309.2 of the NYC Construction Code:

The responsibility of affording any license to enter adjoining property shall
rest upon the owner of the adjoining property involved; and in case any tenant of such owner fails or refuses to permit the owner to afford such license, such failure or refusal shall be a cause for the owner to dispossess such tenant through appropriate legal proceedings for recovering possession of real property. Nothing in this chapter shall be construed to prohibit the owner of the property undertaking construction or demolition work from petitioning for a special proceeding pursuant to Section 881 of the Real Property Actions and Proceedings Law.

What if my neighbor ignores the request to enter an perform the survey and monitoring?

Section 3309.2 of the Code says that the neighbor (the adjoining property owner) has the responsibility for affording a license to enter. If a license agreement can be agreed upon that ends the discussion. But if a license agreement cannot be agreed upon, then Section 3309.2 says that the “owner of the property undertaking construction” can petition the Court pursuant RPAPL Section 881 for a judicial license.

While many construction projects go smoothly and their is cooperation, many result in litigation. The preconstruction survey and the monitoring required by Code Sections 3309.3 and 3309.4 actually protect both the developer and the adjoining property owner in litigation over damage caused by the adjacent construction. The preconstruction survey provides a baseline for the attorneys to know the condition of the adjoining property before construction and the monitoring provide scientific data for whether the adjoining property moved (or vibrated) during construction (which may have caused damage).

To learn more about handling preconstruction survey requirements.

Temporary structural support of adjacent building to project

During the life of a structure, it tends to settle into the ground and soil below it as erosion occurs and time passes. When there are two structures adjacent to each other, the neighboring adjacent structures tend to lean on each other as they settle.

The two structures essentially become each other’s supporting wall. Thus, when one of the adjacent structures is removed, it leaves the remaining structure vulnerable to structural failure since the weight of the remaining structure no longer has  the support in which it previously leaned a portion of its weight on.

To address this during new construction,  temporary steel beams are placed and anchored to remaining structure to maintain the support that has now been removed.

NYC Department of Building Site Safety Requirement by Sept.1 2020

Local Law 196 of 2017 Site Safety Training Requirements

By September 1, 2020, 40 hours of training will be required for all workers working in construction trades.

The Key point of the memorandum

  • By June 1, 2019, workers will need 30 hours of training, a requirement that can be satisfied by taking an OSHA 30-hour training course.
  • By September 1, 2020, 40 hours of training will be required for all workers working in construction trades.
  • Civil penalties can be as high as $5,000 per untrained worker, issued to each site owner, the permit holder, and the employer of the untrained worker
  • Each site in which there is a permit, the permit holder must maintain and produce log book of employee training cards.  Failure to provide log book could result in the issuance of a violation with a civil penalty of $2,500.

The construction industry as a whole have been moving exponentially in the direction of individual safety which is then transcribed into the laws and requirements we as general contractors. As the industry goes in this direction, operators of construction and building companies should make efforts to be ahead of the curb by making site safety and safe construction practices part of your company’s policy.

Click on the document for full memorandum.