Just off the top it seems these would be valid on lakes...
Now those are valid on lakes too.
Now only 56 buildings require water body of 10 tiles.
Listing all those.
Modular
BUILDING_NEMO_ACADEMY - world wonder
Religious modular
BUILDING_ENKI
BUILDING_ITSUKUSHIMA_SHRINE - world wonder
BUILDING_SAN_MARCOS_CATHEDRAL - world wonder
BUILDING_ERECTION - world wonder
Pepper module:
BUILDING_UNDERWATER_DATA_CENTER
BUILDING_TRANSATLANTIC_TUNNEL - World Wonder
BUILDING_FUTURE_VENICE - WW
BUILDING_ADVANCED_FLOODWALL
BUILDING_GREEN_FLOAT
BUILDING_DEEP_SEA_MINE
BUILDING_PALM_ISLANDS - WW
BUILDING_KHAZAR_ISLANDS - WW
BUILDING_SEASTEAD
BUILDING_OCEAN_SPIRAL - WW
BUILDING_ENERGY_ISLAND
BUILDING_BLITZBALL_ARENA
BUILDING_BIONIC_TOWER - WW
BUILDING_AEROPOLIS_2001 - WW
Great Wonders:
BUILDING_PORTUGAL_FEITORIA
BUILDING_BAY_GARDENS
BUILDING_MAGELLAN
BUILDING_DEEPSEA_MISSION
BUILDING_MOAI_STATUES
BUILDING_RICHARDSON
BUILDING_SYDNEY_OPERA_HOUSE
BUILDING_COLOSSUS
BUILDING_GREAT_LIGHTHOUSE
BUILDING_STATUE_OF_LIBERTY
BUILDING_VENETIAN_ARSENAL
BUILDING_ZHENG_HE
BUILDING_ANCIENT_WAY_OF_THE_WAVES
BUILDING_TSUKIJI
BUILDING_ALCATRAZ
BUILDING_ELLIS_ISLAND
BUILDING_PEARL_HARBOR
BUILDING_SCAPA_FLOW
National Wonders:
BUILDING_DUTCH_DIKE
BUILDING_BIODOME
BUILDING_SEAFARING_ACHIEVEMENT - Special (no cost NW)
Regular buildings:
BUILDING_BOATYARD
BUILDING_COAST_GUARD_STATION
BUILDING_CRUISE_PORT
BUILDING_FREE_PORT
BUILDING_GARBAGE_DOCK
BUILDING_OSMOTIC_POWER_PLANT
BUILDING_PIRATES_COVE
BUILDING_REMOTE_NAVAL
BUILDING_REPAIR_DOCK
BUILDING_SEAWALL
BUILDING_SURF_SHOP
BUILDING_TIDAL_FARM
BUILDING_TIDEPOOLS
BUILDING_TOLL_HOUSE
BUILDING_UNDERWATER_HOTEL
BUILDING_WAVE_RACING
I think those requiring river could have this minimum water body removed - is it River OR Coast; or River AND Coast?