I help Seattle and Eastside landowners, brokers, and investors make confident decisions about infill development, without surprises, retrades, or guesswork.
If you want a clear, builder-led understanding of what a property or opportunity can actually support, you’re in the right place.

Who This Is For:
 → You own land in Seattle or the Eastside and want a clear, honest view of its redevelopment potential
 → You’re a broker who values certainty, clean execution, and protecting client relationships
 → You’re an investor looking for disciplined, construction-backed underwriting

How I Help:
I guide projects from feasibility through delivery using a vertically integrated model designed to reduce risk and misalignment.

We manage everything in-house:
Feasibility → Design → Permitting → Construction → Sales

Fewer handoffs. Fewer delays. Clearer outcomes.

Why That Matters:
Infill projects fail when assumptions break down between zoning, design, and construction.
We focus on aligning those decisions early, so projects pencil realistically and deliver as expected.

A Bit of Context:
I grew up building homes, earned a degree in Construction Management, and spent six years helping deliver large-scale development projects across the region. That experience shapes how we operate today.

What I Believe:
Landowners deserve straight answers.
Brokers deserve certainty and follow-through.
Investors deserve disciplined, full-cycle underwriting.

Good housing comes from clarity and accountability. Not shortcuts.

Let’s Talk:
If you want a clear read on what your property or opportunity can support, feel free to reach out. Happy to help.

Aegir Olsen

In real estate development, most risk doesn’t come from the market.

It comes from handoffs.

When acquisition, design, budgeting, and construction are fragmented, small gaps turn into expensive surprises.

Our approach is intentionally different.

We keep the entire development process under one roof, from site acquisition through construction, so decisions are made with full context and accountability.

That’s how Queen Anne Townhomes reached construction with:
 → fully approved permits
 → a locked GMP
 → equity funded
 → and a closed construction loan

Fewer handoffs + Clear ownership = More predictable outcomes.

We’re now underway and will be sharing progress as the project moves forward.

If you’re interested in how we approach urban infill, or want to stay informed on future opportunities, I’m happy to share more.

Helping Seattle and Eastside Landowners and Investors Make Confident Infill Development Decisions

Queen Anne Townhomes - Infill Development

This is my first article on LinkedIn.

I’ll be using it occasionally to share straightforward, on-the-ground updates from projects we’re actively building.

This first one is a construction update from Capitol Hill Townhomes - demolition is complete, foundations and sitework are in progress, and the site is starting to take shape in Seattle’s Capitol Hill neighborhood.

Full update below.

One of the most rewarding parts of development is when months (and years) of planning turn into visible work on site. Here’s a construction update fro

Open article: Capitol Hill Townhomes - Construction Progress Update by Aegir Olsen • 2 min read

Capitol Hill Townhomes - Construction Progress Update

STACK

Stack is an urban infill real estate developer focused on established neighborhoods in the Seattle region. Our investment strategy seeks to realize value at various stages along the development lifecycle. Our flexibility is the bedrock of the company and allows us to make the best decision for each investment. Generally, we look at each site with an open mind, seeking the highest and best use for the property and building a customized approach responding to the unique characteristics of the location.

Managing Principal

StoryBuilt

Managing Director, Acquisitions and Development

Vice President of Acquisitions and Development

Director of Acquisition and Development

Development management of medium to large-scale infill development projects. Responsibilities include land acquisition, project entitlement, management of design consultants both internal and third party participants and coordination with construction management and sales team.

Community Development Manager

Granger Family Homes

Company lead on design and entitlement of luxury urban infill residential projects in and around the Seattle. Oversaw the creation of an in-house design team focused on sourcing land and providing builder services for partner builders. Conducted initial feasibility for potential acquisition of projects. Managed coordination with third party consultants to ensure a timely delivery of permits. Worked with builders through construction administration to ensure a high quality buildout consistent with design intent. Coordinated with brokerage to provide marketing collateral unique to each project.

Architectural Design/Entitlement Manager

Laguarda.Low Architects

Managed and designed largerscale mixed use commercial projects internationally. 
This included overseeing production and presentation process as well as  coordination of client interests with consultants, municipal authorities and partners. Took an active role in business development and marketing of LLA's global brand.

Associate | Lead Project Designer

Project Designer

GSAPP

Teaching Fellow

Chase Development Competition

Project planning, design and development of LA Green Corps office and warehouse. The development proposal was submitted to Enterprise/ Chase development competition and was selected as a finalist.

Independent study through GSAPP MsRED

Tony Cobb Construction

Commercial and Residential Construction
 -Commercial storage and testing facilities-Halliburton
 -Structural foundation for steel manufacturing components
 -General residential construction

Construction

Patrick Cobb serves as a Partner and Managing Principal at Stack, where he is responsible for overseeing planning and development in the Seattle region. In this role, Patrick sets the strategic vision for projects, identifies target opportunities, and manages the entire project lifecycle from concept through to completion. His leadership ensures that we create spaces that meaningfully contribute to our communities.

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Patrick Cobb

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