531120 — Lessors of Nonresidential Buildings (except Miniwarehouses)
Description
This industry comprises establishments primarily engaged in acting as lessors of buildings (except miniwarehouses and self-storage units) that are not used as residences or dwellings. Included in this industry are: (1) owner-lessors of nonresidential buildings; (2) establishments renting real estate and then acting as lessors in subleasing it to others; and (3) establishments providing full service office space, whether on a lease or service contract basis. The establishments in this industry may manage the property themselves or have another establishment manage it for them.
Overview Facts
| NAICS Code | 531120 |
|---|---|
| Industry Title | Lessors of Nonresidential Buildings (except Miniwarehouses) |
| SBA Size Standard | $34,000,000 |
| U.S. Establishments | 34,559 (Census CBP, 2023) |
| IRS PBA Code | 531120 (exact match) |
| Sectors Hierarchy | Sector 53 → 531 → 5311 |
| Source / Verified | US Census 2022 NAICS Manual, Census CBP / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 6512 - Operators of Nonresidential Buildings (via SIC1987:6512→NAICS1997:53112→2002:531120→2007:531120→2012:531120→2017:531120→2022:531120)
- SIC 6798 - Real Estate Investment Trusts (via SIC1987:6798→NAICS1997:52593→2002:525930→2007:531120→2012:531120→2017:531120→2022:531120)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC R710 — Financial Services (includes credit card services and any other financial services. See revision to description for code R703 above)
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 531120:
- Sector 53 Directory Hub — List of related industries in the Real Estate and Rental and Leasing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 5311
Frequently Asked Questions (FAQ)
Is 531120 a valid 2022 NAICS code?
NAICS 531120 is 'Lessors of Nonresidential Buildings (except Miniwarehouses)', a 2022 U.S. national industry under Sector 53 (Real Estate and Rental and Leasing); the SBA small-business size standard is $34,000,000.
What is the SBA size standard for NAICS 531120?
The SBA small business size standard for NAICS 531120 is $34,000,000 (based on receipts).
What is the legacy SIC code mapping for 531120?
NAICS code 531120 maps to the legacy 1987 SIC codes: 6512 - Operators of Nonresidential Buildings, 6798 - Real Estate Investment Trusts.