Preservation Tech Notes, Temporary Protection Number 3, Protecting a Historic Structure During Adjacent Construction
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PRESERVATION TECH NOTES    TEMPORARY PROTECTION NUMBER 3


Consultation

   Early consultation between the historic property owner and the developer of the neighboring site is the first and often most important step. Establishing such contact has many advantages. Consultation provides the foundation for a mutually beneficial relationship that is cooperative rather than adversarial. The process gives the historic site owner an opportunity to become familiar with the scope of the impending project and for the development team to understand the historic structure's vulnerabilities. Consultation permits all parties a chance to propose, discuss, and negotiate changes to the construction plan that reduce the risk of damaging historic resources. The ultimate goal is to draft a protection plan acceptable to both parties.
photo of church wall with plywood covering windows
Protective measures negotiated during the consultation process may include securing historic widows and doors behind plywood coverings. Photo: NPS Files.

   Resolving concerns before construction is underway can save time and money, as well as the need to repair damaged historic fabric. It is crucial that such discussions take place during the paper stage of the project, before final decisions are made. If not, the developer may conclude that changes would be cost prohibitive and that it is preferable to repair damage after it occurs. Early consultation also provides information that can be used to assess whether the level of insurance coverage is sufficient to meet the specific project risks.

   The owner of a historic property cannot in most cases compel the support and cooperation of the development team. If, after consultation has been attempted, the level of protection provided is not sufficient, the aid of local building officials should be sought. Local officials, through the permitting process, can often insist that changes be made to development plans to ensure that adjacent properties are protected. Local building codes may also provide safeguards by establishing certain conditions such as maximum vibration levels.

   Other parties can participate in and contribute to the consultation process. The support of neighborhood committees, local non-profit preservation organizations, independent engineers and the historic district commission (if applicable) may be enlisted to ensure that protection concerns are fully addressed. The developer will benefit from the assembly of a team, including or representing the general contractor, architect, structural engineer, construction manager, and subcontractors, who can be present at consultation meetings and play a continuing role in balancing protection efforts with development interests.

   Preconstruction meetings should address several issues. Most important, the parties should reach an understanding about what steps will be taken to protect the historic structure. Responsibility for implementing the agreed upon protections should be established among the developer, the general contractor and relevant subcontractors, and the historic property owner. Such decisions should be listed in performance specifications that accompany agreements between the contractor and the developer. A walk-through of the historic building by the development team is also advisable. Finally, schedules for major work such as excavation, and requirements for materials delivery, site storage, and other use of the premises by the contractor should be discussed and arranged to minimize disruptions to the historic site.

Documentation

Documentation

 


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