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Work on American Canyon’s Watson Ranch community includes the assembly of modular apartments at the Lemos Pointe complex.

A portion of a modular apartment complex is lowered into place Tuesday at Watson Ranch, a large development under construction in American Canyon. The apartments are being put together from pieces fabricated elsewhere, and many amenities are already installed within the units before delivery.

American Canyon city officials on Tuesday received a tour of a modular apartment complex at Watson Ranch, Napa County's largest development in decades. The project includes Lemos Pointe, a collection of 231 modular units and 186 apartments.

American Canyon City Manager Jason Holley walks through a modular apartment in Watson Ranch, a housing and mixed-use development under construction, during a Tuesday tour of the site for city officials.

American Canyon city officials received a tour Tuesday of a modular apartment complex being assembled at Watson Ranch.

American Canyon officials on Tuesday received a look at the progress made thus far at Watson Ranch, a development that will feature hundreds of housing units, businesses, and the Napa Valley Ruins & Gardens, a restoration of a historic and abandoned cement plant.

The covering on a portion of a modular apartment complex was removed before being installed at Lemos Pointe, a housing complex within the Watson Ranch development in American Canyon.

American Canyon Mayor Leon Garcia looks out at construction while touring a modular apartment complex in Watson Ranch, a large development project in American Canyon on Tuesday. The apartments, which are suppose to fall under affordable housing guidelines, put together in pieces that were constructed elsewhere. Most amenities are already in the units once they are delivered leaving little else work to be done.

A portion of a modular apartment complex is put into place in Watson Ranch, a large development project in American Canyon on Tuesday. The apartments, which are suppose to fall under affordable housing guidelines, put together in pieces that were constructed elsewhere. Most amenities are already in the units once they are delivered leaving little else work to be done.

American Canyon city officials take photos as a modular apartment complex is put together in Watson Ranch, a large development project in American Canyon on Tuesday. The apartments, which are suppose to fall under affordable housing guidelines, put together in pieces that were constructed elsewhere. Most amenities are already in the units once they are delivered leaving little else work to be done.

A construction worker is seen walking on a portion of a modular apartment complex is taken off before being put into place in Watson Ranch, a large development project in American Canyon on Tuesday. The apartments, which are suppose to fall under affordable housing guidelines, put together in pieces that were constructed elsewhere. Most amenities are already in the units once they are delivered leaving little else work to be done.

American Canyon city officials get a tour of a modular apartment in Watson Ranch, a large development project in American Canyon on Tuesday. The apartments, which are suppose to fall under affordable housing guidelines, put together in pieces that were constructed elsewhere. Most amenities are already in the units once they are delivered leaving little else work to be done.

A portion of a modular apartment complex is in Watson Ranch, a large development project in American Canyon on Tuesday. The apartments, which are suppose to fall under affordable housing guidelines, put together in pieces that were constructed elsewhere. Most amenities are already in the units once they are delivered leaving little else work to be done.

American Canyon Mayor Leon Garcia takes a selfie with other city officials while touring a modular apartment complex in Watson Ranch, a large development project in American Canyon on Tuesday. The apartments, which are suppose to fall under affordable housing guidelines, put together in pieces that were constructed elsewhere. Most amenities are already in the units once they are delivered leaving little else work to be done.

A construction worker walks past modular apartments in Watson Ranch, a large development project in American Canyon on Tuesday. The apartments, which are suppose to fall under affordable housing guidelines, put together in pieces that were constructed elsewhere. Most amenities are already in the units once they are delivered leaving little else work to be done.

American Canyon city officials get a tour of a modular apartment in Watson Ranch, a large development project in American Canyon on Tuesday. The apartments, which are suppose to fall under affordable housing guidelines, put together in pieces that were constructed elsewhere. Most amenities are already in the units once they are delivered leaving little else work to be done.

American Canyon city officials get a tour of a modular apartment in Watson Ranch, a large development project in American Canyon on Tuesday. The apartments, which are suppose to fall under affordable housing guidelines, put together in pieces that were constructed elsewhere. Most amenities are already in the units once they are delivered leaving little else work to be done.

PHOTOS: For more images of the modular apartments at Watson Ranch, point your smartphone at the QR code and tap the link.

The Napa Valley's largest development in decades includes Lemos Pointe, which will include 231 modular units and 186 apartments.

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