One-of-a-kind

Second & Seneca offers exceptional office environments, elevated amenities, and an unwavering commitment to tenant experience to create a workplace where companies, and the people behind them, can perform at their highest level.

Second and Seneca’s green glass dome and terraced upper floors among downtown Seattle towers

464,404 RSF

Trophy Office Tower

  • The Penthouse – a dedicated amenity floor

    Accommodates 350 People

  • enclosed Rooftop Lounge

  • Saunas & Cold Plunges

    Fitness Center

    Keane’s, an On-site Café

    1/1,100 RSF Parking Ratio

    Floor-to-Ceiling Windows

    7 Private Activated Terraces

Suite 200 , Floor 2

32,475 SF

Features

  • Large and Efficient Floor Plate
  • Interconnecting Internal Stairs
  • West Facing Deck with Water Views
  • Excellent Existing Conferencing
View Floor Plan, Suite 200

Suite 300 , Floor 3

22,628 RSF

Features

  • Large and Efficient Floor Plate
  • Interconnecting Internal Stairs
  • Central Air Conditioning
  • Can be combined with additional space(s) for up to 58,165 SF of adjacent space
View Floor Plan, Suite 300

Suite 320 , Floor 3

3,062 RSF

Features

  • Spec Space with High End Finishes
  • Suite is Furnished
View Floor Plan, Suite 320

Suite 1600 , Floor 16

20,979 RSF

Features

  • Full-Floor Opportunity
  • Floor-to-Ceiling Windows
  • Open Ceiling Plan
  • Polished Concrete Floor
  • Internal Staircase to Floor 17
View Floor Plan, Suite 1600

Suite 1700 , Floor 17

20,979 RSF

Features

  • Full-Floor Opportunity
  • Floor-to-Ceiling Windows
  • Reusable Office Buildout
  • Internal Staircase to Floor 16
  • Unobstructed Water Views of Elliott Bay
View Floor Plan, Suite 1700

Suite 1900 , Floor 19

19,130 RSF

Features

  • Full-Floor Opportunity
  • Floor-to-Ceiling Windows
  • Flexible and Efficient Open Buildout
  • Large Exterior Water-Facing Deck
  • Unobstructed Water Views of Elliott Bay
View Floor Plan, Suite 1900

Suite 2000 , Floor 20

17,017 RSF

Features

  • Full-Floor Opportunity
  • Floor-to-Ceiling Windows
  • Exterior Decks on both West and East Side of Floor
  • Internal Staircase to 21
  • Unobstructed Water Views of Elliott Bay
View Floor Plan, Suite 2000

Suite 2100 , Floor 21

13,151 RSF

Features

  • Full-Floor Opportunity
  • Floor-to-Ceiling Windows
  • Penthouse Office Space
  • Internal Staircase to 20
  • Unobstructed Water Views of Elliott Bay
View Floor Plan, Suite 2100

Suite 200 floor plan

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Suite 300 floor plan

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Suite 320 floor plan

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Suite 1600 floor plan

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Suite 1700 floor plan

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Suite 1900 floor plan

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Suite 2000 floor plan

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Suite 2100 floor plan

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The Penthouse social lounge bar, set with wine and menus under glass cloud pendants, beside a window counter and stool overlooking the water
The Penthouse rooftop lounge: a concrete high table and woven bar stools beside a glass-walled pergola, with Elliott Bay and the port cranes beyond

The Penthouse

What goes around, comes around and luckily for tenants, it’s the beautifully re-imagined 22nd floor amenity suite— built for innovative strategy sessions, social gatherings, and sauna breaks. Taking full floor advantage of the Puget Sound views accentuated by the floor-to-ceiling windows and rooftop lounge. Each space has been thoughtfully designed for fun and function.

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The Penthouse outdoor lounge by day: a high table and woven bar stools beside a covered pergola, overlooking Puget Sound
The Penthouse social lounge: a bar faced in patterned tile under clusters of glass pendant lights and a coffered wood ceiling, with sofas and windows over the water beyond
The wellness patio: a sofa, two armchairs and a stone coffee table under a louvred pergola among planters, with a glass-fronted sauna at the right
Multi-purpose room set up classroom-style: rows of long wood tables and grey chairs under a deep grid ceiling, with a lectern at the far end and floor-to-ceiling windows onto downtown towers
Boardroom with a long oval walnut table, sage upholstered chairs and a blue carpet, a wall-mounted screen at the far end and floor-to-ceiling windows onto downtown towers

Rooftop Lounge at The Penthouse

Social Lounge at The Penthouse

Wellness Patio at The Penthouse

Multi-Purpose Room at The Penthouse

The Boardroom at The Penthouse