Professional Services

Self-Performed Services

Sitts & Hill is a full-service Civil & Structural Engineering, Architectural, and Land Surveying firm with supporting landscape architecture, BIM/3D modeling, and CAD services. We have been providing quality engineering and surveying from our Tacoma office since 1955. The work of our firm is diverse and encompasses a broad range of light and heavy industrial development including aerospace, rail, marine and waterfront; commercial and multifamily facilities; land development; educational facilities; and specialty engineering for towers, cranes, tank design and inspection. We fulfill the roles our client's need including prime & sub consultant, lead design professional, construction contract administrator, and owner’s representative for a variety of projects throughout the United States.

Sitts & Hill Engineering Square

Land Surveying

  • ALTA / NSPS Land Title Surveys
  • Boundary Surveys
  • Boundary Line Adjustments
  • Boundary Line Agreements (RCW 58.04.007)
  • Topographic Mapping
  • Laser Scanning / Reality Capture
  • UAV / sUAS Mapping
  • Plats
  • Condominium Surveys
  • Construction Staking
  • GIS Integration
  • As-built Surveys
  • Utility Research and Mapping
  • Legal Description Preparation
  • Legal Exhibits
  • Expert Testimony

Architectural Services

  • Building Design  
  • Code Analysis
  • Cost Analysis
  • Project Scheduling
  • BIM Modeling & Rendering
  • Specifications
  • MEP Coordination
  • Permitting Coordination
  • Bid Coordination
  • Construction Support

Supporting Services

  • Construction support services and construction management
  • Specification preparation
  • Cost estimating services
  • Project administration/design quality control
  • LEED® design services

Civil Engineering Services

  • Stormwater quantity, quality and conveyance system design
  • Gravity and pressure sanitary sewer systems, including oil/water separators and grease interceptors
  • Fire and domestic water system design
  • Street and roadway design, pavement rehabilitation, route optimization, channelization and signage
  • Pedestrian paths, sidewalks, ADA routes, safety improvements for circulation
  • Fencing, gates, turnstiles, vehicle turnarounds, and secure facilities
  • Railroad terminals, track design, railroad/street crossing design, rail unloading/loading facilities
  • Permitting assistance, preparation of permit documents (SEPA, NOI, JARPA, Army Corp. Permits, etc.)
  • Landscape architecture services

Structural/Industrial Engineering Services

  • General arrangement/plant layout
  • Code compliance studies (building code, etc.)
  • Building design
  • Design/analysis of tools and equipment
  • Structural engineering calculations and reports
  • Tank inspection & analysis
  • Specialty foundations for machines and equipment
  • Underground vaults, flight-line and duct banks
  • BIM services, renderings, & 3D modeling