IN SITU Landscape Architecture

What IN SITU Landscape Architecture does

IN SITU Landscape Architecture is a privately held, full-service landscape architecture firm headquartered at 190 Beaumont Avenue in San Francisco, California. The firm provides professional landscape architectural services across a broad range of project types and scales, with a documented portfolio spanning residential estates (Hillside Residence in Hillsborough, Hillsborough Private Residence, Portola Valley Residence), commercial and hospitality venues (Riggs Distributing Showroom in Burlingame, Citizen M Hotel in Menlo Park), educational campuses (University High School in San Francisco, Mission College Library Renovation in Santa Clara), and commercial office environments (200 Rhode Island in San Francisco).

The practice operates as a design-forward boutique studio led by two principals — Horng Sheng Tu and Eric Sirois — and is positioned around a rigorous, collaborative design process that emphasizes site-specific solutions integrating the built environment with natural context. Service delivery is direct, project-based, and human-led, with no disclosed technology platform, software product, or AI tooling. Marketing is conducted through a website portfolio (hosted on Squarespace), and distribution is direct client engagement rather than through intermediaries.

The business model is that of a small professional services firm: fees are project-specific and not publicly disclosed, customers engage the firm directly, and there is no parent company, external investor, subsidiary structure, or licensing revenue. The firm serves a regional California market, with named projects concentrated in the San Francisco Bay Area. No headcount, revenue, funding, M&A, or strategic transaction data is disclosed in available sources.

Name

IN SITU Landscape Architecture

Legal name

IN SITU Landscape Architecture

Website

https://insitulandscape.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

1–10 employees

Short description

IN SITU Landscape Architecture is a San Francisco-based boutique landscape architecture firm providing design services for residential, commercial, hospitality, and educational projects across the Bay Area. Two principals lead the practice, delivering site-specific, design-forward landscape solutions through direct client engagement.

Ownership category

akta.pro rank

Product category

Landscape Architecture Services

NAICS

Landscape Architectural Services (541320)

akta.pro primary industry

Landscape Architecture & Site Design (BPAHAKAC)

akta.pro secondary industries

Residential Landscape Design (HSAIABAA), Commercial Landscape Design & Installation (HSAIABAJ)

Keywords

• Landscape architecture design
• Outdoor space planning
• Residential landscape design
• Commercial landscape architecture
• Campus landscape design

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Distribution channels1 record

Marketing channels1 record

Core offering

IN SITU Landscape Architecture is a full-service landscape architecture firm providing professional design services for a broad range of project types and scales. The firm develops site-context-grounded solutions that integrate the built environment with the natural world, delivering residential, commercial, hospitality, and institutional landscape design through a rigorous and collaborative process.

Product overview

IN SITU Landscape Architecture is a full-service landscape architecture firm based in San Francisco that provides professional landscape architectural services for a broad range of project types at varying scales. The company operates as a design-forward practice dedicated to integrating the built environment with the natural world, developing solutions grounded in site context and connected to the people and place. Their services are delivered through a rigorous and collaborative process that uncovers client goals and aspirations and translates them into built form, creating spaces that are responsive, memorable, and sustainable. The firm showcases various completed projects across different categories including residential landscapes (Hillside Residence, Hillsborough Private Residence, Portola Valley Residence), commercial/hospitality spaces (Riggs Distributing Showroom, Citizen M Hotel), institutional projects (University High School, Mission College Library Renovation), and commercial office environments (200 Rhode Island).

Differentiator

Problem solved

Functional benefit

Products and services

• Full-Service Landscape Architecture Design

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Direct peers

• Andrea Cochran Landscape Architecture: Bay Area–based boutique landscape architecture firm with similar residential, commercial, and institutional focus. The closest direct competitor in scale and design-led positioning to IN SITU.
• Hood Design Studio: Oakland-based landscape architecture and urban design practice led by a named principal with a strong community and institutional portfolio. Comparable boutique, design-led, Bay Area–anchored model.
• Groundworks Office: Boutique landscape architecture practice working on residential, institutional, and urban projects with a design-led ethos. Comparable in scale and project-type mix to IN SITU.
• Mia Lehrer + Associates: Los Angeles–based landscape architecture studio with a strong portfolio across residential, institutional, and public projects. Comparable boutique, principal-led model with cross-sector reach.
• OLIN: Landscape architecture, urban design, and planning studio with a strong portfolio across cultural, residential, and commercial projects. Comparable in design-forward positioning and multidisciplinary scope.
• TLS Landscape Architecture: California-based landscape architecture firm with a similar residential and institutional project profile. Comparable boutique, California-anchored practice.
• Aidekman Studio: Boutique landscape architecture practice with a strong residential and hospitality portfolio. Comparable in scale, design-forward positioning, and project-type mix to IN SITU.

Broad incumbents

• SWA Group: Internationally recognized landscape architecture and urban design firm. Comparable on discipline and project types but operates at materially larger scale and geographic breadth than IN SITU.
• James Corner Field Operations: Major landscape architecture and urban design practice with iconic large-scale public-realm and waterfront projects. Comparable discipline but at significantly larger scale and signature-project profile than IN SITU.

Emerging players

• Piet Oudolf: Internationally known planting designer whose work overlaps with landscape architecture in residential, hospitality, and public projects. Comparable aesthetic and craft orientation, though Oudolf operates more as a planting designer than a full-service firm.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks5 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/in-situ-landscape-architecture

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 IN SITU Landscape Architecture