Property Measurement & Square Footage Verification
Accurate property measurement services for residential and commercial spaces in NYC, including ANSI Z765 reporting when applicable.
Property & Home Measurement Services in NYC
Does your property’s square footage match what’s listed in public records, lease documents, or marketing materials — or is there a discrepancy?
Whether you’re preparing to sell, reviewing a rent calculation, resolving a record issue, planning a renovation, or simply need verified dimensions, Block Appraisals provides accurate home measurement services and property measurement reports you can rely on.
This is not an appraisal. It’s a standalone property measurement service performed with the same level of precision and care used in appraisal work. Depending on the property type and intended use, home measurement services may follow ANSI Z765 standards or another appropriate method based on the client’s needs.
We serve all areas in NYC, including the Bronx, Staten Island, Queens, Manhattan, and Brooklyn. Contact us now to get started!
Why Accurate Property Measurement Matters
Square footage impacts more than just property value. Accurate property measurement can affect listing accuracy, rent calculations, legal disputes, renovation planning, tax matters, and how a property is represented in public records or contracts.
The challenge is that square footage isn’t always measured the same way. Public records, MLS listings, lease agreements, prior appraisals, and building documents may all show different numbers depending on how the space was measured, when it was measured, and for what purpose.
Block Appraisals provides property measurement services in NYC based on your specific needs and intended use.
- In some cases, that means ANSI Z765-compliant home measurement services, commonly used in lending and appraisal assignments for single-family homes.
- In other situations, it means measuring the space as accurately as possible using a method better suited to the property type, layout, or purpose of the assignment.
The result is a clearly documented square footage figure you can use with confidence — before it becomes an issue.
Types of Properties We Measure in NYC
Block Appraisals provides property measurement services for a wide range of property types and spaces throughout New York City. Whether you need home measurement services for a residential property, or property measurement for a commercial space, we determine the right scope for the assignment.
Co-ops, Condos, and Condops
Unit measurements for condos, co-ops, and other apartment-style properties.
Townhouses and Brownstones
Detailed floor-by-floor measurements for townhouses and similar residences.
Multi-Family Properties
Measurement services for small multi-unit residential buildings across NYC.
Single-Family Homes
Accurate measurements for single-family properties throughout New York City.
Retail & Commercial Spaces
Interior measurements for storefronts, offices, and other commercial properties.
Partial Space Verification
Focused measurements to verify layout, rentable area, or square footage.
Common Reasons Clients Request a Measurement Report
Professional home measurement services and broader property measurement work are useful any time accuracy matters — and in New York City, that’s often the case.
Listing Preparation
Verify square footage before bringing a property to market, especially when public records don’t reflect additions or changes. Accurate home measurement services can help sellers market a property more confidently.
Lease & Rent Disputes
Confirm the actual size of a retail, office, or rented space when rent is based on price per square foot. In these cases, accurate property measurement can support negotiations and documentation.
Public Record Discrepancies
Document differences between the property as built and what appears in tax records or other official sources with a professional property measurement report.
Renovations & Additions
Measure existing space before improvements and document added or reconfigured square footage after construction.
Legal & Financial Matters
Provide clear, independent property measurement documentation for disputes, negotiations, estate matters, or other situations where accuracy matters.
Residential or Commercial Verification
Request home measurement services for a house, condo, or townhouse, or broader property measurement services for mixed-use or commercial spaces, depending on the assignment.
The Home Measurement Process
Our process is simple and designed to keep things efficient.
We discuss the property, the reason for the property measurement, and how the report will be used so we can determine the right scope and method.
We provide a simple agreement outlining the scope, fee, and terms. Payment is due prior to the inspection.
We coordinate a convenient time to visit the property.
We perform a thorough on-site property measurement using professional tools and the appropriate methodology for the assignment.
Your completed property measurement report, including sketch and calculations, is delivered within approximately one week, or sooner when possible.
What You Receive With Your Measurement Report
Every home measurement service includes a complete, professionally prepared report — typically delivered within about one week, or sooner when possible.
On-Site Property Measurement
We visit the property in person and take all necessary measurements using professional tools.
Appropriate, Accurate Calculations
We calculate carefully for each property and assignment, including ANSI disclosures when needed.
Dimensioned Floor Plan Sketch
A clear sketch showing layout and dimensions as part of the final property measurement documentation.
Clear Breakdown of All Areas
Where applicable, the report distinguishes between area types and other relevant categories.
Written Measurement Report
A clean, documented report suitable for use with agents, attorneys, landlords, tenants, or for your own records.
ANSI Z765 Disclosure Statements
Where needed, reports include methodology notes and disclosures so the results are clearly understood.
When ANSI Z765 Applies and When It Doesn't
ANSI Z765 is a recognized standard for measuring detached and attached single-family homes. It is commonly used in lending and appraisal assignments, where institutions such as Fannie Mae require appraisers to follow a consistent method for reporting gross living area (GLA).
Square footage impacts more than just property value. Accurate property measurement can affect listing accuracy, rent calculations, legal disputes, renovation planning, tax matters, and how a property is represented in public records or contracts.
However, ANSI does not apply to every property type or every property measurement need.
- Condos, co-ops, multifamily properties, and commercial spaces may require a different measurement approach
- Lease-related measurements and dispute situations often call for accurate property measurement rather than ANSI-specific reporting
- Public records and building department data in NYC are often based on different standards entirely
Block Appraisals determines the appropriate method based on the assignment. When ANSI applies, we follow ANSI. When another approach is more appropriate, we measure the property accurately for that purpose and clearly document the methodology used.
This allows our home measurement services and broader property measurement services to fit the real-world needs of each client.
Why Public Records Are Often Incorrect
Many NYC properties were measured before ANSI standards were required, or never professionally measured at all. Differences in measurements of 5%-10% (or more) are common. In a market where price per square foot is a primary valuation metric, those discrepancies can have real financial consequences.
A professional property measurement service ensures you’re working with accurate, defensible numbers before they affect a transaction.
What Our Clients Say About Us
FAQs Regarding NYC Property Measurement Services
No, ANSI Z765 is commonly used for certain single-family appraisal and lending assignments, but not every property measurement service requires ANSI. The method depends on the property type and intended use.
We provide measurement services for residential properties and broader property measurement services for mixed-use and commercial properties, as well as partial spaces such as leased retail or office areas.
Yes, measuring a property before listing it for sale is a common reason clients request home measurement services, especially when public records do not reflect additions or changes, and the owner wants to market the property accurately.
No. Property measurement services are limited to measuring and documenting square footage. This service does not include a market value opinion. Visit our real estate appraisal services page for more information about appraisals.
No, a survey determines property boundaries. This service measures the structure or interior space itself.
No, according to ANSI Z765, finished space must meet the standard’s criteria to be included in GLA. That includes factors such as whether the area is above grade, whether it meets ceiling height requirements, and whether it is connected to the main body of the home. Areas that do not meet those criteria may still be measured and reported separately. You can learn more about our home appraisal measurement process from our blog.
If the property cannot be fully inspected, ANSI Z765 allows certain square footage calculations to be completed using limited-access methods, plans, or estimated dimensions in some situations. However, the report must clearly disclose when that occurs. For most assignments, Block Appraisals performs an on-site inspection and measurement.
Turnaround time for measurement services is typically about one week, depending on property complexity and scheduling.
Block Appraisals offers home measurement services across all five boroughs of New York City, with some availability just outside the city. If you live in Manhattan, Brooklyn, Staten Island, Queens, or the Bronx, we can likely help you.
Our certified NYC real estate appraisers need access to the property for measurement services. Existing plans can also help but are not required.
Need an Accurate Property Measurement?
Contact Block Appraisals to schedule your property measurement service and get a verified square footage report you can rely on. We serve all five boroughs and typically deliver reports within one week.