Two projects can look identical from the street and run on opposite survey schedules. The ownership structure is what splits them. A subdivision survey for a townhome phase happens mostly before construction, while condominium work lands after the buildings go up. Pick the wrong assumption at the start and your first closings sit and wait.

The buildings can be the same. The paperwork behind them is not.

Two Ways to Divide the Same Buildings

Townhome projects usually create fee simple lots. Each unit sits on its own parcel of ground, with lines that run through party walls or just outside them. Buyers own dirt.

Condominium projects divide space instead. Units are defined by boundaries described in the declaration, often measured to wall, floor and ceiling surfaces. Buyers own an air space plus a share of the common elements.

That difference changes who measures what and when. Ground lines can be staked before anything is built. Wall and ceiling surfaces cannot.

Why Condominium Phases Flip the Schedule

A condominium unit boundary depends on the finished building. Concrete moves during construction, and slabs are rarely exactly where the plan drew them. The surveyor has to measure the structure that actually got built.

That means the bulk of condominium survey work happens near the end of construction rather than the start. Developers who budget the survey during site work often discover a second, larger scope waiting at the finish line.

The Substantial Completion Certification

In many states, a condominium cannot convey units until a licensed surveyor certifies that construction of the improvements is substantially complete, and that the plans accurately show the units and common elements. Requirements and terminology vary by state, so confirm the exact rule with counsel early.

That certification is a hard gate. Sales contracts, lender funding and closing dates all sit behind it. Building the schedule without it is how developers end up with a finished building and no way to close.

Book that field work in advance. Surveyors need lead time, and a rush request during a closing crunch costs more and moves slower.

Vertical Measurements Take Longer Than People Expect

Condominium documents require floor plans and elevation information for each unit type, tied to the building as constructed. Someone has to get inside every unit and record it.

Access drives the timeline here. Crews need units clear enough to measure, which means coordinating around finish trades. A building still full of drywall crews and flooring installers slows the work down.

Stacked buildings add repetition. Each floor needs its own recorded elevations, and small construction variations between floors have to be captured rather than copied.

Phasing a Condominium Adds Amendment Work

Phased condominiums are declared in stages, with later buildings added to the regime as they finish. Each addition typically requires an amendment supported by new survey exhibits.

That creates a repeating cycle rather than one delivery. Every phase brings another round of as-built measurement, another set of exhibits and another certification.

Plan the survey budget per phase instead of as a single line at the start. Developers who price one survey and then discover four are the ones renegotiating scope mid-project.

Mixed Projects Carry Both Schedules

Plenty of developments combine fee simple townhomes with a condominium building. Those projects run both tracks at once, and the tracks do not line up.

Groundwork for the townhome section happens early. Building measurement for the condominium section happens late. One survey contract covering both should say clearly which scope belongs to which phase and when each gets triggered.

Keep the base data shared. Both scopes should reference the same control and the same boundary work, so exhibits agree with each other when a reviewer compares them.

What to Lock Down Before Construction Starts

Even with condominium work landing late, several decisions belong at the front of the project:

• Confirm the ownership structure with counsel before design is finalized
• Ask the surveyor what the state requires for unit boundary definitions
• Put as-built measurement dates in the construction schedule, not just the survey contract
• Identify who provides architectural plans for the surveyor to verify against
• Set a phase-by-phase survey budget rather than one lump figure
• Agree on how unit access will be coordinated with the general contractor

The access item causes the most friction later. Contractors treat surveyors as a scheduling problem unless the requirement was written into the plan from the start.

Scheduling Mistakes That Delay Closings

Ordering the condominium survey after construction ends is the classic error. Field work, drafting and review take real time, and none of it can start early if nobody scheduled it.

Assuming the architect’s plans are sufficient is another. The surveyor certifies what was built, and buildings drift from their drawings. Any variance found late has to be reflected in the recorded documents.

The third is treating a phase amendment as paperwork. Each one carries survey work behind it, and a missed lead time stalls an entire building’s closings.

Frequently asked questions

When should a developer order survey work for a condominium phase?

Engage the surveyor during design so the scope and schedule are set early, even though most field measurement happens near completion. As-built measurement should be scheduled while construction is being planned, not after it ends. Lead time protects your closing dates. Rushed requests during a sales crunch cost more and deliver slower.

Why can’t condominium unit boundaries be surveyed before construction?

Unit boundaries in most condominium declarations reference physical features of the finished building, such as interior wall, floor, and ceiling surfaces. Those surfaces do not exist until construction is substantially complete. Buildings also shift slightly from the plans during construction. The survey has to record the structure as it is actually built.

Does a townhome project need the same kind of survey work?

No. Fee-simple townhome lots are defined by ground boundaries, so most survey work supports lot creation before and during construction. Interior unit measurement is generally not required. Some projects still need as-built work to confirm buildings sit within the platted lines.

What happens if the building does not match the plans?

The survey documents what exists, and the recorded documents have to reflect that. Small variations are common and usually handled through the exhibits prepared for recording. Larger discrepancies may require design or legal responses. Finding them earlier is always cheaper than finding them at closing.

Can one surveyor handle both townhome and condominium portions?

Yes, and using one firm keeps the control and boundary data consistent across both. Make sure the contract separates the two scopes with distinct triggers and fees. Mixed projects run on two different schedules. A single lump sum for both tends to create disputes about what was included.

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