ALTA Survey Drafting Services: Field-to-CAD Checklist

Why ALTA/NSPS Survey Accuracy Starts in the Field

ALTA/NSPS Land Title Surveys demand exceptional precision and adherence to strict standards established by the American Land Title Association and the National Society of Professional Surveyors. When field data arrives incomplete or ambiguous, even the most experienced drafter faces delays, revision cycles, and potential compliance issues.

The connection between field work and CAD production determines whether your ALTA survey meets Title Table A requirements, satisfies underwriters, and closes transactions on schedule. Professional alta survey drafting services depend on receiving organized, complete information from the field crew.

Essential Field Data for ALTA Survey Drafting

Before your drafter begins work, verify that your field package includes these critical components:

Raw Survey Data and Control Information

Your drafter needs the complete data collector files in their native format, not just processed coordinates. This includes:

• Total station and GPS/GNSS observation files
• Control point descriptions with datum information (NAD83, State Plane zone, epoch)
• Benchmark elevations and vertical datum references
• Coordinate system and projection parameters
• Instrument heights, prism constants, and calibration certificates when relevant

Without proper control documentation, coordinate geometry becomes guesswork, and the survey loses its legal defensibility.

Boundary and Monumentation Details

ALTA surveys revolve around precise boundary determination. Your field notes must communicate:

• Monument types, conditions, and sizes for every corner found or set
• Bearing and distance relationships to record dimensions
• Specific descriptions of boundary line occupation (fences, walls, hedgerows)
• Evidence of boundary disputes, encroachments, or possession lines
• Photos of critical monuments, especially those in poor condition

Ambiguous monument descriptions create liability exposure. "Iron pipe found" tells your drafter very little compared to "5/8-inch rebar with yellow plastic cap stamped 'Smith LS 12345' flush with grade."

Improvement Location and Description

Table A Item 7 (a) requires all buildings, structures, and other improvements. Field crews should provide:

• Building footprint coordinates at all corners and offsets
• Foundation types (slab, crawlspace, basement)
• Roof overhang locations if they extend beyond the foundation
• Exterior stairways, porches, decks, and covered entries
• Material descriptions (brick, vinyl siding, concrete block)
• Number of stories

Don't assume the drafter will know which structures matter. When in doubt, collect everything and note it clearly.

Utilities and Easement Evidence

ALTA Item 7 (b) covers observed evidence of utilities, and Item 6 addresses easements. Your land surveying field team should document:

• Visible utility lines, poles, transformers, meters, and boxes with provider identification when marked
• Manholes, valve boxes, and cleanouts with rim elevations
• Underground utility markings from locate services
• Overhead line clearances to buildings
• Easement monuments or references found during fieldwork
• Width measurements of paved access drives and parking areas

Utility locations drive site development decisions. Incomplete utility information frequently triggers project delays when engineers discover conflicts during design.

Critical Annotations and Field Observations

Numbers alone don't tell the complete story. Your drafter relies on contextual information:

Site Access and Zoning Evidence

Document how the property accesses public right-of-way, including curb cut dimensions, gate locations, and shared access agreements. Note any posted zoning signs, parking restrictions, or land use evidence that might affect the title company's risk assessment.

Flood Zone and Elevation Data

When Item 17 (FEMA flood zone determination) is requested, provide:

• FEMA map panel numbers and effective dates recorded during fieldwork
• Finished floor elevations (FFE) at main entrances
• Ground elevations at building corners
• Elevation certificate reference points if required

Apparent Rights-of-Way and Easements

Note any visible evidence of access or use by others. Is there a worn path suggesting pedestrian easement? Does a neighboring property share a driveway? These observations help title companies identify potential exceptions.

Organizing Field Data for Efficient Drafting

How you deliver information matters as much as what you deliver. Professional survey CAD outsourcing teams prefer:

• Single compressed file containing all project materials
• Consistent file naming conventions (project number, date, data type)
• Separate folders for raw data, photos, field sketches, and reference documents
• PDF scans of field books with legible handwriting
• Digital photos with clear file names indicating what's shown

A well-organized submission reaches completion faster than scattered emails with ambiguous attachments.

Common Field Data Gaps That Delay Drafting

Even experienced field crews occasionally overlook items that halt CAD production:

• Missing or incomplete legal descriptions from title commitments
• Unmarked photo subjects ("What am I looking at in IMG_4782.jpg?")
• Utility locations marked as "per owner" without independent verification
• Fence lines without clear inside/outside orientation
• Adjoiner information without property identification numbers

Establish a pre-submission review process where crew chiefs verify completeness before sending files to drafting.

Table A Optional Items: Communication is Essential

The ALTA standard includes numerous Optional Items beyond minimum requirements. Before fieldwork begins, confirm which items the client purchased:

• Item 2: Measured distances to structures on adjoining properties
• Item 4: Gross floor area of buildings
• Item 5: Vertical relief and spot elevations
• Item 6: Recorded easements, servitudes, and covenants
• Item 8: Substantial exterior modifications
• Item 11: Zoning classification and parking space counts
• Item 13: Deed restrictions affecting use

Collecting unnecessary data wastes billable field time. Missing purchased items requires expensive return visits.

Frequently Asked Questions

What file formats work best for ALTA survey drafting services?

Native data collector formats (.dc, .fwk, .job) are ideal because they preserve observation metadata. Export to .txt or .csv when transferring between incompatible systems, but include header information explaining coordinate order and unit systems. For CAD reference files, DWG format is standard.

How detailed should field sketches be for complex sites?

Your sketches don't need to be artistic, but they should clearly show spatial relationships and identify features by the same point numbers used in data files. For complex utility intersections or irregular building footprints, annotated sketches prevent misinterpretation that numerical coordinates alone can't address.

What's the turnaround time when field data is complete and organized?

With complete field data packages, many outsourced drafting services deliver ALTA surveys within 24-48 hours for typical commercial properties. Complex sites with numerous structures and improvements may require 3-5 business days. Incomplete data extending that timeline by days or weeks costs far more than the extra hour spent organizing field information properly.

Ready to Streamline Your ALTA Survey Production?

Complete field data packages are the foundation of efficient, accurate ALTA/NSPS survey deliverables. When your field crews and drafters communicate effectively, you reduce revision cycles, meet deadlines consistently, and build a reputation for reliable work.

Land Drafters provides professional ALTA survey drafting services with 24-48 hour turnaround, white-label output, and an NDA on every project. Our team understands exactly what we need from your field data to produce compliant, client-ready drawings. Request a free quote and experience the difference organized collaboration makes.