Land surveyors measure and map property boundaries, structures and terrain. Homeowners hire them to find property lines, plan fences or additions, prepare site plans for permits and resolve boundary questions.
Common land surveying services include:
Hire a land surveyor before building a fence, addition or ADU near a property line, when buying land or when a lender, title company or permit office requires a survey.
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C.T. Male Associates is a multidisciplinary engineering, surveying, architecture, landscape architecture, and geology firm headquartered in Latham, NY that provides civil, structural, geotechnical, environmental, electrical, mechanical and energy engineering services as well as comprehensive land surveying (including UAV/drone and LiDAR), landscape and site design, and geology/brownfields work across the Northeast; the company serves public and private market sectors such as education, healthcare, energy, transportation and residential/commercial development, maintains multiple regional offices, and emphasizes technical expertise, integrity, and regional involvement in delivering infrastructure, renewable energy, and site development projects.
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ClearLine Land Surveyors is a Maryland and Washington, D.C.–focused land surveying firm that provides boundary surveys, corner marking, certified boundary drawings (plats), ALTA/NSPS land title surveys and related surveying services for residential and commercial projects; ClearLine Land Surveyors emphasizes accuracy, timely delivery, and licensed/insured field work across Maryland and the District of Columbia and offers free quote requests and expedited commercial survey options.
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Currie & Associates is a Silver Spring, Maryland–based consulting civil engineering and land surveying firm with over 20 years of experience and MBE certification since 1990 that delivers site planning, land surveying (boundary, topographic, ALTA, and construction surveys), environmental assessments (wetland delineation, forest stand delineation, natural resources inventory, and flood zone studies), and feasibility studies for projects across Washington, D.C., Maryland, and Northern Virginia; the company leverages modern GPS and robotic surveying technologies to reduce delivery time and cost while providing professional, cost-effective civil engineering and surveying solutions.
Dietz Surveying is a Baltimore-area land surveying firm that provides a full range of surveying services including expedited ALTA/NSPS surveys, boundary surveys, condominium plat surveys, topographic surveys, construction stakeout, D.R.C. plan preparation, easement and right-of-way work, flood and elevation certification, foundation certification, lot line adjustments, house location drawings, site plans, subdivision and zoning plans, and survey marker services. The company serves Baltimore City, Baltimore County, Anne Arundel, Carroll, Howard, and Harford counties, emphasizes thorough research and accuracy in resolving boundary and title issues (with courtroom recognition of its methodology), maintains professional memberships such as the Maryland Society of Surveyors and the Better Business Bureau, and holds WBE certification to support developers, homeowners, title companies, and legal clients with authoritative surveying and site development support.
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District Survey (District Survey, LLC) is a Washington, D.C.–based land surveying firm serving Washington, D.C., Northern Virginia, and Puerto Rico that delivers precise, technology-driven survey data for planning, design, and construction projects. District Survey provides a full range of services including topographic surveys, ALTA/NSPS land title surveys, boundary surveys, construction staking and as-builts, 3D LiDAR scanning with point-cloud-to-BIM workflows, and monitoring surveys for structural movement, and the company emphasizes the use of advanced equipment and software to produce comprehensive, accurate deliverables for engineers, architects, owners, and lenders.
S.J. Martenet & Co. is a historic Baltimore-based land surveying firm established in 1849 that specializes in boundary and title-related surveying services, including boundary surveys, topographic surveys, ALTA/NSPS land title surveys, construction support, subdivision work, condominium conversions, corridor assemblage, litigation support, title abstract assistance, easement creation, and elevation certificates. Martenet maintains an extensive archive of more than 70,000 surveys and related contextual records that the company leverages—alongside modern digital workflows and surveying technology—to resolve boundary disputes, clarify riparian and title issues, and provide authoritative land information for clients across central Maryland.
LandTek Partners LLC is a licensed land surveying and engineering firm with over 40 years of experience serving the greater Washington and Baltimore region; the company provides a full suite of commercial and residential services including boundary and permit surveys, topographic and ALTA surveys, flood elevation certificates, drone surveys, and site development support, and combines experienced licensed professionals with modern surveying technology to deliver accurate results for homeowners, title and mortgage companies, developers, and contractors from its Columbia, Maryland office.
SAM (also shown as SAM Companies) is a national provider of Managed Geospatial Services™ that collects, processes, and delivers high-fidelity geospatial and inspection data to support infrastructure, utilities, transportation, government, and commercial programs; the company offers mapping and data collection (land surveying, aerial mapping, GIS, BIM/3D laser scanning, survey/construction monitoring), inspection services (powerline, engineering, damage prevention, FAC-008 solutions), digital and data solutions (data analytics, system integration, strategic GIS consulting, substation digital twins), and subsurface utility engineering and coordination, leveraging advanced technologies and rapid deployment capabilities to turn spatial data into actionable insights for large, complex projects.
S.J. Martenet & Co. is a historic Baltimore-based land surveying firm founded in 1849 that provides boundary and title-related surveying and title solutions, offering services such as boundary surveys, topographic surveys, ALTA/NSPS land title surveys, construction support, Baltimore City land subdivision, condominium conversion, corridor assemblage, litigation support, title abstract assistance, easement creation, and elevation certificates. The company maintains an extensive archive of more than 70,000 surveys and supporting contextual records and combines that archival depth with modern digital workflows and surveying technology so S.J. Martenet & Co. can resolve boundary disputes, clarify riparian and title issues, and serve as a primary source of authoritative land information for central Maryland.
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A land surveyor researches records, measures the property in the field, locates or sets boundary markers and prepares maps or plats that show boundaries, structures and features.
Common reasons include installing a fence, building an addition or ADU, resolving a dispute with a neighbor, subdividing land, buying property or meeting lender, title or permit requirements.
Land surveyors are licensed by the state, so confirm the license. Ask which type of survey fits your needs, what deliverables you will receive and whether corners will be marked in the field.
Cost depends on the type of survey, lot size and terrain, the availability of records and existing markers, vegetation, travel and the deliverables required.
Gather your deed, previous surveys and plat maps, unlock gates and secure pets. Tell the surveyor why you need the survey so they recommend the right type.