Developers last week filed plans for three mixed-use buildings on Dudley Square land awarded them earlier this year by the city as part of a program to turn city-owned parking and vacant lots into affordable housing, stores and offices.

At 105 units, the largest is Roxbury-based Cruz Development Corp.'s proposed two-building complex on what is now a parking lot 135 Dudley St., between the B-2 police station and the BPL branch and Dudley Literacy Center. At 40-50 Warren St., a couple blocks away from the Bolling Building, New Urban Collaborative is proposing a 25-unit apartment building on what is now another parking lot. Also now before the BPDA: A proposal from the Madison Park Development Corp. for 20 condos at 75 Dudley St.

Earlier this year, the Boston Department of Neighborhood Development awarded development rights to the parcels as part of its Plan: Dudley Square initiative.

A fourth proposal is also expected, from New Atlantic Development and DREAM Development for a building with 62 apartments and 14 condos at 2147 Washington St., between Williams and Ruggles streets

The Cruz proposal calls for a six-story building with 55 affordable apartments, a nine-story building with 50 affordable condos and 55 market-rate condos, space for a new headquarters for the Boston NAACP and a restaurant/art space, a plaza ad park and a garage with room for 270 cars - which will serve the Cruz buildings, the library and Roxbury Municipal Court.

Cruz says some of the apartments would be rented to people making as little as 30% of the Boston area median income - city guidelines generally consider "affordable" to be as much as 80% of that income level. In the condo building, the affordable units would be sold to people making up to 80% of the area median income.

The siting of the project creates a welcoming gesture for circulation coming from Malcolm X Boulevard and Gourdin Park and provides an activated edge along Dudley Street and a portion of Washington Street to the Boston Police substation. Approximately 270 spaces of above grade, structured parking is accessed via the existing Warren Street curb cut, well away from Dudley Street. This parking is intended to serve residents, visitors, as well as a component of public neighborhood parking, and will be architecturally and programmatically screened from direct view from Dudley and Washington Streets. Above the retail level, the site is split into two buildings, creating an elevated courtyard between the buildings. Each building has its own architectural character, further integrating it into the diverse architectural context of Dudley Square. The project provides a community park between the eastern boundary of the site and the Dudley Branch of the Boston Public Library. This shared green space is intended for tenants as well as neighborhood and Library uses.

The building in the context of the square:

At 40-50 Warren St., New Urban Collaborative has filed plans for an $11.1-million, six-story building, looking like an homage to the nearby Bolling Building, with 25 apartments, roughly 67% of which would be rented as affordable. For a typical private building, the city requires 13% of units be rented as affordable.

The building, kitty corner from the Dudley Square bus station, would have no parking, but would have first-floor co-working space.

Also filed last week, Madison Park Development Corp.'s plans for 20 affordable condos on Dudley Street.

New Atlantic Development and DREAM Development have yet to file their formal plans for 2172 Washington St. for BPDA review, but in their application to DND, they proposed a building with 50 apartments rented to people making between 50% and 80% of the area median income and 12 rented to people making less than 50% of the area median income, along with 12 condos - 4 to be sold to people making less than 70% of the area median income, 4 to people making between 70% and 100% and 4 at market rates.

135 Dudley St. project-notification form (44M PDF).

40-50 Warren St. small-project review application (10.4M PDF).

75 Dudley St. small-project review application (10.2M PDF).