David Baker Architects

Mason on Mariposa


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View of the mews looking south. Image: Craig Cozart Photography

Mason on Mariposa is a mixed-use development that integrates new market-rate and affordable homes, commercial space, and a publicly accessibly greenway into the neighborhood at the base of Potrero Hill.

The community includes two buildings—1601 Mariposa and 210 Arkansas—framing a long-undergrounded creek and abandoned rail line that has been converted into a vibrant pedestrian mews connecting 18th Street with Mariposa Street. The design has a goal of LEED Gold certification and includes area-improving upgraded drainage, pedestrian access, and corner parklets.

More project and leasing information is available here.

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The leasing pavilion and lounge along the central mews. Image: Craig Cozart

Greenway

A 40- to 65-foot-wide greenway connects 18th Street to Mariposa Street.

Entrance to garden mews from Mariposa Street. Image: Craig Cozart

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We designed the 18th & Arkansas community in the early 1990s. The corner of Mason on Mariposa pops up across the street 20 plus years later. Image: Adam Potts

Ground floor retail at the corner of 18th and Arkansas Street. Image: Adam Potts

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The Arkansas elevations address the scale of the existing neighborhood. Image: Adam Potts

Ground floor units have residential stoops. Image: Adam Potts

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Arkansas Street elevation as of 2015.08. Image: David baker Architects

Arkansas Street neighborhood typology elements: 25' lot increments, height variation,bays and stoops, window modulation

Arkansas Street

 

Along the more residential-scaled Arkansas street, the building is set back 5-feet from the property line and connected to the sidewalk with residential stoops.

The neighborhood typology mapped on the existing facing street elevation.

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Looking up 18th towards Arkansas Street. Image: Adam Potts

Corner of Arkansas and 18th. Image: Adam Potts

18th Street

This steep street's elevation addresses the scale of the 18th & Arkansas/G2 Lofts project across the street, designed by DBA in the 1990s.

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Carolina Street elevation. Image: Adam Potts

Carolina Street

This industrial street has a more commercial feel, with commercial and retail space on the ground level.

Corner of Caroline and Mariposa Street. Image: Adam Potts

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Typical residential floor plan and upper level site plan. Image: David Baker Architects

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Lower level site plan. Image: David Baker Architects

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Site Plan: Active ground-floor uses, with a new public pedestrian greenway connecting 18th Street to Jackson Playground.

A public greenway stretches across the site, connecting Mariposa and 18th Street. Image: Adam Potts

Leasing pavilion with circulation cores overlooking the garden mews. Image: Adam Potts

Floor to ceiling glazing connects interior and exterior gathering spaces. Image: Adam Potts

A stately lobby opens to a community gathering space. Image: Adam Potts

The interior spaces flow into the exterior spaces through floor-to-ceiling glass storefronts. Image: Adam Potts

Interior gather spaces are centered around fireplace features. Image: Adam Potts

the lobby space is outfitted with double-height bookshelves. Image: Adam Potts

Conference rooms open to exterior spaces. Image: Adam Potts

The units are surrounded exterior seating areas. Image: Adam Potts

The units surround public spaces. Image: Adam Potts

The sky lounge opens to a rooftop deck. Image: Adam Potts

the rooftop deck is centered around a fire feature. Image: Adam Potts

Kitchen within units. Image: Adam Potts

Kitchen inside unit. Image: Adam Potts

Copper livens the corner of the building. Image: Adam Potts

The lounge space looks out on the garden mews. Image: Adam Potts

The lounge space looks out on the garden mews. Image: Adam Potts

The lounge space looks out on the garden mews. Image: Adam Potts

The facade casts dynamic shadows on the interior spaces. Image: Adam Potts

Mason on Mariposa includes a gym for residents. Image: Adam Potts

It also has a community playspace for children. Image: Adam Potts

The mews include residential amenities like grill spaces. Image: Adam Potts

Corner of Caroline and Mariposa Street. Image: Adam Potts

Carolina Street elevation. Image: Adam Potts

Looking up 18th towards Arkansas Street. Image: Adam Potts

The facades facing the garden mews are compositions of Random Batten Siding. Image: Adam Potts

The garden mews were designed in collaboration with Fletcher Studios. Image: Adam Potts

Corner of Arkansas and 18th. Image: Adam Potts

Ground floor retail at the corner of 18th and Arkansas Street. Image: Adam Potts

We designed the 18th & Arkansas community in the early 1990s. The corner of Mason on Mariposa pops up across the street 20 plus years later. Image: Adam Potts

The Arkansas elevations address the scale of the existing neighborhood. Image: Adam Potts

Ground floor units have residential stoops. Image: Adam Potts

View down the secondary mews from Arkansas to the central amenity building. Image: Adam Potts

The leasing pavilion and lounge along the central mews. Image: Craig Cozart

Entrance to garden mews from Mariposa Street. Image: Craig Cozart

The feature fence was designed by Fletcher Studio. Image: Craig Cozart

Entrance to the garden mews from above. Image: Craig Cozart

Looking down the main pedestrian greenway from above the leasing office. Image: Craig Cozart

Looking down the main pedestrian mews from above the leasing office. Image: Craig Cozart

Looking down on the main garden mews. Image: Craig Cozart

Looking down at the main garden mews and residents' balconies. Image: Craig Cozart

View of the mews looking south. Image: Craig Cozart Photography

View of the mews looking south. Image: Craig Cozart

View of the mews looking south. Image: Craig Cozart

View up pedestrian mews. Image: Craig Cozart

View up pedestrian mews at dusk. Image: Craig Cozart

The mews contain large basalt pillars. Image: Craig Cozart

View of the mews looking south. Image: Craig Cozart

Center of mews. Image: Craig Cozart

Mews looking north. Image: Craig Cozart

Mews looking toward the leasing office as dusk. Image: Craig Cozart

Entry plaza of pedestrian mews. Image: Craig Cozart

Green space at dusk. Image: Craig Cozart

Leasing office patio space. Image: Craig Cozart

Leasing office patio. Image: Craig Cozart

Awning of leasing office patio. Image: Craig Cozart

Leasing office patio. Image: Craig Cozart

Leasing office building at night. Image: Craig Cozart

Interior lobby lunge opens to an exterior patio in front of the leasing office. Image: Craig Cozart

The leasing pavilion and lounge along the central mews. Image: Craig Cozart

Entrance to pedestrian mews looking north to Mariposa Street. Image: Craig Cozart

Fence designed by Fletcher Studio. Image: Craig Cozart

Planters between buildings. Image: Craig Cozart

Planters between buildings. Image: Craig Cozart

Palm trees in planters around walkways. Image: Craig Cozart

The units open to a private green space. Image: Craig Cozart

The units open to a private green space. Image: Craig Cozart

Patio between residential buildings. Image: Craig Cozart

The are concrete benches between residential buildings. Image: Craig Cozart

View down residential patios. Image: Craig Cozart

View down residential patio spaces. Image: Craig Cozart

Residential patio at dusk. Image: Craig Cozart

Breezeways connect buildings. Image: Craig Cozart

Carolina Street sidewalk. Image: Craig Cozart

Carolina Street sidewalk. Image: Craig Cozart

Roof plan. Image: David Baker Architects

Typical residential floor plan and upper level site plan. Image: David Baker Architects

Lower level site plan. Image: David Baker Architects

Site Plan: Active ground-floor uses, with a new public pedestrian greenway connecting 18th Street to Jackson Playground.

Arkansas Street neighborhood typology elements: 25' lot increments, height variation,bays and stoops, window modulation

The neighborhood typology mapped on the existing facing street elevation.

Arkansas Street elevation as of 2015.08. Image: David baker Architects

Family-friendly townhomes and a green stormwater swale along 18th Street. Image: David Baker Architects

Looking down Arkansas Street from above 18th Street. Image: David Baker Architects

Arkansas Street stoops and plantings. Image: David Baker Architects

View from Jackson Playground. Image: David Baker Architects

Public pedestrian greenway at Mariposa Street. Image: David Baker Architects

The public plaza at the pedestrian greenway. Image: David Baker Architects

View looking up the east-west pedestrian mid-block passage toward Arkansas Street. Image: David Baker Architects

Local-serving commercial space with new planting and outdoor seating at the corner of Carolina and Mariposa streets.

There is an entry portal mid-block on Carolina Street. Image: David Baker Architects

Local-serving commercial space and streetscape improvements at Arkansas and 18th streets. Image: David Baker Architects

awards

Gold Nugget Grand Award—Best Multifamily Housing (60-100 dua)
Pacific Coast Builders Conference

publications

Mason on Mariposa
Making Big Moves at Mason on Mariposa

project details

Category

All Projects, Apartments, Current Work, Market-Rate, Mixed-Use, San Francisco

​Location

San Francisco, California

Developer

Related Companies of California

Executive Architect

Ankrom Moisan

Design Architect

David Baker Architects

Interiors Architect

Marmol Radziner

Landscape Architect

Fletcher Studio

Retail Architect

BAR Architects

Mechanical/Electrical/Plumbing Engineer

CB Engineers

Civil Engineer

Sandis

Sustainability Consultant

Argento / Graham

Permalink

www.dbarchitect.com/MasonOnMariposa

project data
Mason on Mariposa 21116
San Francisco, California
Completed June 2020
number of units
studio 75
1 bedroom 86
2 bedroom 118
3 bedroom 20
total 299
density ratios
project sf 413,150
site sf 146,284 
acres 3.36
total bedrooms 457
bedrooms/acre 136
units/acre 89
parking
auto 249
bicycle parking 365
construction type
Type V-A over Type I-A  
certifications
LEED for Homes Mid-Rise  Gold (Registered)