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 (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Overview Facts
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)
Frequently Asked Questions (FAQ)
Is NAICS code 531120 valid in 2022? ▾
Yes, 531120 is a valid 6-digit 2022 NAICS national industry code representing 'Lessors of Nonresidential Buildings (except Miniwarehouses)' under Sector 53 in the official classification index.
What is the SBA size standard for NAICS code 531120? ▾
The Small Business Administration (SBA) has established a small business size standard of $34,000,000 for NAICS code 531120 (Lessors of Nonresidential Buildings (except Miniwarehouses)), calculated based on receipts.
What is the legacy SIC equivalent for NAICS 531120? ▾
According to official Census Bureau concordance tables, NAICS code 531120 (Lessors of Nonresidential Buildings (except Miniwarehouses)) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 6512 - Operators of Nonresidential Buildings, 6798 - Real Estate Investment Trusts.
Related Pages & Tools
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.
- NAICS 531120 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Lessors of Nonresidential Buildings (except Miniwarehouses)).
- IRS PBA Code for Commercial Real Estate — Principal Business Activity tax reporting details.
- IRS PBA Code for Event Venue — Principal Business Activity tax reporting details.
- 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.