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Business Details
50+ Years
experience
Professional Land Surveying Services in Seattle
Chadwick & Winters Land Surveying has been a trusted provider of professional land surveying services in the Pacific Northwest since 1968. Founded as Chadwick Surveying & Engineering and later rebranded under current leadership in 2005, our family-owned business combines decades of expertise with cutting-edge technology to deliver precise and reliable surveying solutions. We specialize in ALTA/NSPS Land Title Surveys, boundary delineation, topographical mapping, hydrographic assessments, and utility surveys for residential, commercial, and municipal clients. Our team of licensed professionals maintains deep familiarity with local land development regulations and has cultivated strong working relationships with city and county agencies across Puget Sound.

With over 50 years of combined public and private sector experience, including expert testimony in Washington state courts, we uphold the highest standards of accuracy and integrity. Our commitment to quality is reflected in our modernized equipment, rigorous field procedures, and meticulous documentation processes that meet both client needs and regulatory requirements. As a multi-generational business, we carry forward a legacy of personalized service and technical excellence that began with C. Michael Chadwick and continues under Brandon Winters' leadership since 2018.
Services
ALTA Surveys Boundary Surveys Hydrographic Surveys Topographical Surveys Utility Surveys Land Use Services
Details
  • Year established: 1968
Highlights and features
  • Family-owned since 1968 with multi-generational expertise
  • Licensed professionals with 50+ years combined industry experience
  • Modern equipment for precise ALTA/NSPS standard compliance
  • Established relationships with Puget Sound municipal agencies
  • Expert witness testimony experience in Washington courts
Associations and certifications
  • NSPS
  • PLS
Services
ALTA Surveys
ALTA/NSPS Land Title Surveys provide comprehensive boundary documentation for property transactions. These surveys identify easements, rights-of-way, and encroachments to satisfy lender and title company requirements. Our ALTA surveys meet national standards while incorporating local jurisdictional requirements for commercial property acquisitions.
Boundary Surveys
Boundary surveys establish legal property lines using historical records and modern GPS technology. Our process includes field verification, monument placement, and official documentation for county recording. This service helps resolve disputes and supports accurate property development planning.
Hydrographic Surveys
Hydrographic surveys map underwater terrain for marine construction and waterfront development. We use sonar technology to create detailed bathymetric charts that guide bulkhead construction, marina development, and environmental permitting processes in Puget Sound.
Topographical Surveys
Topographical surveys document elevation changes and surface features for construction projects. Our surveys include contour mapping, utility locations, and vegetation data to support site planning and municipal permitting requirements across diverse terrain types.
Utility Surveys
Utility surveys identify underground and overhead infrastructure for development projects. We map SDOT-regulated improvements and right-of-way conflicts to prevent construction delays. Our surveys include detailed documentation of existing utilities and compliance with municipal expansion requirements.
People
Brandon Winters
Principal, President, PLS
Licensed surveyor with 24 years in private practice. Specializes in Seattle platting processes and complex development solutions. Maintains hands-on quality control while leading the company since 2018.
Izabella Henry
Permit Specialist, Project Manager
Manages permitting projects across service areas. Coordinates with city planning departments to streamline approvals. Joined the family business in 2017 after graduating from the University of Washington.
Seth Lorgen-Jones
Lead Draftsman
Coordinates survey data into development-ready documents. Translates field data into topographic maps and plats. Manages drafting team while collaborating with architects and engineers on complex projects.
Sue Winters
Operations Manager
Manages daily operations and client relations. Provides project scheduling and issue resolution. Brings 25 years of banking leadership experience to support efficient business operations.
Robert Winters
Company Founder, PLS
Established RH Winters Co. in 1982. Combined resources with Chadwick Surveying in 1996. Served as Washington State Chief Surveyor. Now provides part-time consultation after passing leadership to Brandon in 2018.
Questions
What surveying services do you offer?
We provide ALTA/NSPS Land Title Surveys, boundary surveys, topographical mapping, hydrographic assessments, utility/right-of-way surveys, and land use permitting assistance.
How long have you served the Puget Sound area?
Our firm has provided surveying services since 1968, with continuous family ownership and operation for over 40 years.
Are your surveyors licensed professionals?
Yes, our team includes Professional Land Surveyors (PLS) with decades of combined experience in public and private sector surveying.
Which areas do you serve?
We primarily serve Seattle, Bellevue, Kirkland, Mercer Island, and surrounding communities in the greater Puget Sound region.
Can you handle complex development projects?
Our team specializes in challenging projects requiring ECA surveys, SDOT compliance, and multi-jurisdictional permitting coordination.