The Residential (R1) District is intended to allow more concentrated, moderate-density suburban development adjacent to the Village of Red Hook and where potentially served by municipal water supply facilities. A broad range of housing types is encouraged, including single-family detached, semidetached and attached dwellings, two-family dwellings, accessory dwelling units, multifamily construction and elderly housing, and strong linkages are envisioned between these denser residential neighborhoods and the community's established business, service and institutional uses in the village center. Increased density is authorized for senior citizen housing and related occupancies. An alternative density measure, i.e., bedroom count, is employed in the consideration of maximum permissible number of units for multifamily dwellings, whether by conversion or new construction. As in the R1.5 District, use of the cluster subdivision technique is encouraged, in combination with other controls established under this chapter, to preserve valuable open space, including farmlands, recreational opportunities and other natural resources.