Studio TJP | Architects and Modern Preservationists

What Studio TJP | Architects and Modern Preservationists does

Studio TJP is a privately held, 5-person architecture practice based in Seattle, Washington, founded in 1979 and currently owned and operated by three principals — Howard L. Miller, Steven M. Campbell, and Ellen F. C. Mirro — who took over the firm in 2018 after long tenures. The firm is licensed to practice architecture in Washington State and delivers integrated residential, commercial, and historic preservation services organized into four modules: new construction (including sustainable and universal-design projects such as ADUs and multigenerational homes), home remodels and additions, commercial/institutional architecture, and historic preservation and stewardship. Technical capabilities include structural insulated panels (SIPs), insulated concrete forms, triple-glazed low-E windows, and energy-efficient envelope design, alongside regulatory expertise in Landmark Nominations and National Register submissions.

The firm's business model is project-based professional services revenue derived from custom architectural commissions. Pricing is quote-based and not publicly disclosed; projects are acquired through direct client engagement, referrals, and earned-media-driven reputation, with no self-service or online booking channel. Clients span a diversified mix of government agencies (City of Tacoma, Washington State Department of Archaeology and Historic Preservation), educational institutions (University of Washington, Seattle Public Schools, Seattle Central College, Bertschi School), nonprofits and religious organizations (Episcopal Diocese of Olympia, James & Janie Washington Foundation, Sail Sandpoint), real estate developers (Carmel Partners, Lake Union Partners, Mill Creek), and private homeowners. Geographic focus is the Pacific Northwest, with no disclosed expansion of licensure beyond Washington.

The competitive position rests on a talent moat of nearly 100 years of combined principal experience supported by AIA, NCARB, and LEED AP credentials, complemented by Ellen Mirro's architectural-historian specialization. The firm has received external validation including the AIA FutureShack People's Choice Award for the Fauntleroy Residence and features in Bob Vila, US Modernist Radio, The Seattle Times, and Lifestyle Magazine. There is no disclosed venture funding, no parent company, no subsidiaries, and no artificial-intelligence or software-platform component to the offering.

Name

Studio TJP | Architects and Modern Preservationists

Legal name

Studio TJP

Website

https://tjp.us

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

1–10 employees

Short description

Studio TJP is a 5-person Seattle architecture firm, founded 1979, specializing in custom residential, commercial, and historic preservation projects for government, educational, nonprofit, and private clients across the Pacific Northwest.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (541310), Architectural Services (54131)

SIC

General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

Building Information Modeling (BIM) & Digital Design Services (BPAHAKAK)

Keywords

• Architectural design services
• Residential architecture
• Historic preservation
• Commercial architecture
• Green building design

Headquarters

HQ city

Seattle

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Architectural Design Services: Professional architectural services for residential and commercial projects, including new construction, remodels, additions, and historic preservation. Revenue is generated through project-based professional service fees, typically structured as one-time engagements with milestones tied to project phases.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Studio TJP provides full-service architectural design for residential and commercial clients, with a focus on new construction, remodels, additions, and historic preservation. The firm combines modern design practices with sustainable building techniques (insulated concrete forms, structural insulated panels, triple-glazed low-E windows), universal design and accessibility, and historic stewardship. Projects are delivered across Washington State through project-based professional engagements.

Product overview

Studio TJP is a Seattle-based architecture firm offering a comprehensive suite of architectural services, organized as a single integrated practice with distinct service areas. Their core offering is architecture services spanning residential and commercial projects, supported by four specialized service modules: New Construction (custom home design using sustainable building techniques and universal design principles), Home Remodel & Addition (including kitchen, bathroom, and whole-house renovations), Commercial Architecture (tenant improvements and institutional projects), and Historic Preservation (landmark stewardship, restoration, and seismic upgrades). Projects like the Fauntleroy Residence demonstrate their integrated approach, combining new construction with sustainable materials and universal design, while historic projects like UW Bagley Hall showcase preservation expertise. The firm is licensed to practice architecture in Washington State.

Differentiator

Problem solved

Functional benefit

Products and services

• Architecture Services Full-service architectural design for residential and commercial projects, including new construction, remodels, additions, and historic preservation, with expertise in sustainable building, universal design, and custom detailing.
• New Construction Custom residential new construction design services using innovative and sustainable building techniques, including structural insulated panels, universal design principles, and energy-efficient construction methods.
• Home Remodel & Addition Comprehensive residential remodel and addition services including kitchen and bathroom renovations, room additions, deck construction, and accessibility upgrades.
• Commercial Architecture Commercial architecture services including tenant improvements, office remodels, and institutional projects for government, education, nonprofit, and developer clients.
• Historic Preservation Historic building stewardship and preservation services, including landmark nominations, seismic repairs, restoration work, and ongoing maintenance programs for historically significant structures.

Quantifiable outcome

• The firm has been providing architectural services since 1979, with current leadership taking over in 2018

Named customers14 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators1 record

Recent moves6 records

Expansion highlights4 records

Regional players

• Mithun: Seattle-headquartered architecture, interiors, and landscape design firm with a pronounced sustainability and integrated-design focus. Comparable to Studio TJP in shared emphasis on environmental stewardship, though serving a much larger institutional and developer client base.
• Miller Hull Partnership: Seattle architecture firm recognized for sustainable, climate-responsive design across civic, educational, and residential projects. Comparable in Pacific Northwest geography, sustainability ethos, and engagement with public-sector clients like Studio TJP.
• Olson Kundig: Seattle-based architecture firm with a strong design philosophy centered on craft, materials, and contextual modernism. Comparable to Studio TJP as a Pacific Northwest design-led practice, though operating at substantially larger scale and broader geographic reach.

Broad incumbents

• Ankrom Moisan: Large Pacific Northwest architecture firm serving multifamily, affordable housing, senior living, and commercial markets. Listed as a peer collaborator of Studio TJP; comparable through overlapping design disciplines but operating at far greater scale and project volume.

Direct peers

• VIA Architecture: Seattle architecture firm specializing in community-oriented, mixed-use, and residential projects with sustainability focus. Comparable to Studio TJP in geographic market, project types, and mid-sized practitioner profile.
• CAST Architecture: Seattle-based design-build and architecture firm working on residential, multifamily, and community-oriented projects. Closely comparable to Studio TJP in scale, Seattle focus, and integration of preservation-minded design principles.
• SALA Architects: Mid-sized Minneapolis architecture firm with historic preservation, custom residential, and community-focused practice. Comparable to Studio TJP in small-firm scale, preservation specialization, and craft-oriented custom residential design — though geographically separate.
• Graham Baba Architects: Seattle architecture practice working across residential, commercial, and adaptive reuse projects with craft-driven design sensibilities. Comparable to Studio TJP in size, geography, and breadth of historic and contemporary work.
• KMB Architects: Seattle-based architecture firm serving residential and commercial clients with a focus on multifamily and community projects. Listed as a collaborator with Studio TJP; closely comparable in scale and Pacific Northwest focus.
• Bassetti Architects: Seattle architecture firm working on K-12, higher education, civic, and preservation projects. Comparable to Studio TJP in institutional client engagement and Pacific Northwest presence.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/tjparchitects
• LinkedInlinkedin.com/company/studiotjp
• Instagraminstagram.com/studiotjpseattle

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Studio TJP | Architects and Modern Preservationists