Historic district The Pleasant Valley Historic District is a historic district located along Pleasant Valley Road, Valley Road, Woodens Lane and Hunter Road in the community of Pleasant Valley in Hopewell Township in Mercer County that extends into West Amwell Township. The district was added to the National Register of Historic Places on June 14, 1991, for its significance in agriculture, architecture, and exploration/settlement. It includes 52 contributing buildings, 7 contributing structures, and 22 contributing sites.
hIstorIc DiStRIct The PleAsanT valleY HIstoric DistrIcT is a hiSToriC distRiCT locateD ALOnG pleaSant VALLeY ROad, vaLLey rOaD, WoodENs lANe anD HUnter RoAd in THE comMUNity of PleaSAnt VALLey in HOpEwEll TownShIp in MERcer cOUNTY THAT eXTEnDs INtO west amWell TownShip. the diSTRict was addED to tHe natiOnAl rEgisTer Of hiStorIC pLaces oN JuNe 14, 1991, For its sIgniFicaNce in AgricUltURe, archiTectuRe, and ExpLoratioN/settlemEnt. iT inCLudes 52 contributINg bUildings, 7 ContrIBuTing structures, And 22 cONtriBuTing Sites.