No, you almost certainly do not need a property survey when buying a condo. A condo unit’s boundaries are set by the walls, floors, and ceilings described in the condominium’s recorded declaration and plat, not by lines staked in the ground, and the developer already paid for a surveyor to map the entire building and site before the first unit was sold. That recorded plat does the work a boundary survey would do for a house, which is why lenders, title insurers, and attorneys rarely ask a condo buyer to commission one.
Why a Boundary Survey Doesn’t Fit Condo Ownership
Buying a house means buying a piece of land. A boundary survey tells you where that land ends and your neighbor’s begins. Condo ownership is structured differently. You hold title to the interior airspace of your unit and share an undivided interest in everything else: the structure, the land under it, hallways, elevators, the roof, parking, and amenities.
Because you don’t own a discrete parcel, there’s nothing on the ground for a surveyor to stake out. Your unit is measured from interior wall surfaces, or sometimes from the centerline of shared walls, using dimensions already recorded in the condominium’s founding documents. Those documents handle the job a boundary survey handles for a house.
The Condominium Plat Does the Survey’s Job
Every condominium has a recorded plat, sometimes called a plat of condominium or survey map, prepared by the developer’s surveyor and filed with the local recording office alongside the condominium declaration. It generally shows the overall site boundaries, the building’s footprint and location on the land, the dimensions and identifying numbers of individual units, common areas, and any easements affecting the property. A well-prepared plat also identifies limited common elements such as balconies, patios, and assigned parking spaces, and flags any encroachments.
Paired with the plat is the condominium declaration (sometimes called the master deed), which legally describes the property, defines each unit’s boundaries, assigns percentage interests in the common areas, and spells out owner rights and responsibilities. Floor plans recorded with these documents fill in the interior dimensions. Together they tell you exactly what you own and where it ends.
What Lenders and Title Insurers Actually Require
If you’re financing the purchase, you might expect the lender to ask for a survey the way they would for a house. In practice, they don’t. Fannie Mae’s selling guide, which sets the underwriting standards most conventional lenders follow, focuses its condominium review on project-level concerns: HOA finances, owner-occupancy percentages, reserve adequacy, and general project eligibility. The guide does not require an individual survey for a condo unit.1Fannie Mae. Full Review Process – Fannie Mae Selling Guide Freddie Mac’s guidelines are similar in scope.
Lenders rely on the recorded plat and declaration to confirm that your unit exists as described, that the building sits where it should, and that no encroachments affect the property. A title search and title insurance policy complete the picture.
Title insurers follow the same logic. For a house, they often require a current survey before issuing a policy because boundary disputes and encroachments are real risks when you own land. For a condo, the recorded plat and declaration usually suffice. If you want extra protection, ask about ALTA 9 endorsements, which can cover risks related to encroachments, covenant violations, and in some versions the enforced removal of improvements that violate setback lines. These endorsements are available for both owner’s and lender’s policies and can fill any gap the absence of an individual survey might leave.
When a Survey Still Makes Sense
A short list of situations pushes the question back into play. None of them describes a typical high-rise or mid-rise purchase, but any one of them is worth flagging with your attorney or lender before you waive the issue.
- Townhouse-style condominiums. Some condos are structured as townhouses with exclusive-use land, such as a yard or driveway attached to the unit. When your purchase includes rights to a specific patch of ground, a survey of that land can clarify boundaries and prevent disputes with neighbors. Lenders are more likely to ask for one here.
- Condo conversions. When an older building (a warehouse, a school, a former apartment complex) is converted to condominiums, the original structure may not have been surveyed to modern standards. If the recorded plat is vague or outdated, a buyer or lender may want a fresh survey.
- Construction or renovation. If you’re a developer building a new condominium, or an HOA making substantial changes to common areas, a surveyor may need to verify that the work matches the recorded plat or prepare an amended plat for recording.
- Boundary disputes between units. Two neighboring owners occasionally disagree about where one unit ends and the other begins, especially after renovations. The plat and floor plans usually resolve it, but if those documents are ambiguous, a surveyor’s measurements can settle the question.
Outside situations like these, the vast majority of condo purchases close without anyone ordering a survey.
The Documents to Pull Before Closing
Since the declaration, plat, and floor plans replace the traditional survey, get copies and read them before you sign. The declaration tells you what you own and what you share. The plat shows where your unit sits in the building and identifies any limited common elements, such as a balcony or parking space, assigned to it. The bylaws govern HOA operations and maintenance responsibilities.
Four places to look:
- The seller or listing agent. Sellers typically provide the declaration, bylaws, and recent HOA financials as part of the sales package. If the plat and floor plans aren’t included, ask for them specifically.
- The HOA or management company. The association maintains copies of all governing documents. Many post them on a website or owner portal; some charge a fee or require a written request, and response times range from immediate to several business days.
- The county recording office. The declaration and plat were recorded with the local county clerk or recorder when the condominium was created. You can usually search online or request copies in person, with small per-page fees for certified copies.
- The resale certificate or disclosure package. Many states require sellers to provide a resale certificate bundling key HOA documents, financial disclosures, and information about pending assessments or litigation. The plat itself may still need to come from the recording office.
Read the declaration and plat before closing, not after. If anything looks inconsistent with what you were told about the unit (the dimensions, the assigned parking space, a storage locker, a balcony), raise it with your real estate attorney before you sign.