The Delaware Division of Historical and Cultural Affairs has completed Phase III of its master planning process for the Buena Vista conference center located at 661 S. Dupont Highway in New Castle during the past two years.

The planning process was begun in 2010 in an effort to safeguard Buena Vista’s historical integrity; improve visitor wayfinding and circulation for the existing conference and reception functions; and investigate the potential for accommodating a wider range of events. The first eight years of the process saw the completion of a wide range of improvements including structural repairs to the mansion and outbuildings, upgrades to building-automation systems, construction of an accessible pedestrian trail, horticultural upgrades and many others.

Activities completed as part of Phase III:

— Restoration and renovation of the circa 1825 brick stable as a support building for the pole-shed event pavilion. Improvements to the stable included the addition of public-use restrooms, a basic catering kitchen (servery) and a workroom. The renovation required the addition of mechanical, electrical and plumbing systems; water supply; intrusion and fire protection; basic communications systems; envelope stabilization; and interior space layout and finishes.

— Conclusion of a multi-year project to upgrade Buena Vista’s heating, ventilation and air-conditioning system including installation of a new chiller, water pumps, air separator, glycol feeder, expansion tank and other hydronic appurtenances. Previous phases of the project included the installation of new boilers; replacement of select pumps; installation of a glycol/water mixing tank; draining, cleaning and refilling of the glycol system; installation of selected piping insulation; and upgraded controls.

— To address numerous water-pipe breaks, the entire existing water line serving the conference center was abandoned in-place, and the conference center was tied in to an existing six-inch fire sprinkler service. A new master meter-vault and meter pit were installed connecting to the existing six-inch line.

— Repairs to the property’s greenhouse which serves as the northern Delaware headquarters for the division’s Horticulture Team. The greenhouse is used to grow various planting materials for use at the division’s museums and historic sites across the state.

— Conversion of a section of the property’s garage to serve as a storage location in support of conference center functions.

For more, visit buenavista.delaware.gov.