SIC 1521 — General Contractors--Single Family Houses
Description & Classification
SIC code 1521 representing 'General Contractors--Single Family Houses' is an industry category in the Standard Industrial Classification (SIC) system under U.S. OSHA and Federal procurement registers.
Modern NAICS Crosswalk
Trace the modern equivalent classifications in the 2022 North American Industry Classification System (NAICS) database:
- NAICS 236118 - Residential Remodelers (via SIC1987:1521→NAICS1997:23321→2002:236118→2007:236118→2012:236118→2017:236118→2022:236118)
- NAICS 236115 - New Single-Family Housing Construction (except For-Sale Builders) (via SIC1987:1521→NAICS1997:23321→2002:236115→2007:236115→2012:236115→2017:236115→2022:236115)
- NAICS 236117 - New Housing For-Sale Builders (via SIC1987:1521→NAICS1997:23321→2002:236117→2007:236117→2012:236117→2017:236117→2022:236117)
Classification Details
| SIC Code | 1521 |
|---|---|
| Industry Title | General Contractors--Single Family Houses |
| Division | Division C: Construction |
| Major Group | Major Group 15: Building Construction - General Contractors and Operative Builders |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 1521:
- SIC Codes Complete Compliance Guide — Detailed history and active legal applications of the SIC classification framework.
- Why Legacy SIC Codes Persist Guide — How credit systems and the SEC still rely on SIC metadata.
- SIC ↔ NAICS Crosswalk Tool — Trace industrial code conversions dynamically.
- SIC Major Group 15 Hub — View other legacy industries in this business division.
Related Industries in Major Group 15
Frequently Asked Questions (FAQ)
What industry does SIC code 1521 represent?
SIC 1521 is 'General Contractors--Single Family Houses', a 4-digit Standard Industrial Classification (SIC) code under Major Group 15: Building Construction - General Contractors and Operative Builders (Division C: Construction); it maps to modern 2022 NAICS code(s): 236118 (Residential Remodelers), 236115 (New Single-Family Housing Construction (except For-Sale Builders)).
What is the modern 2022 NAICS mapping for SIC 1521?
SIC code 1521 maps to modern NAICS codes: 236118 - Residential Remodelers, 236115 - New Single-Family Housing Construction (except For-Sale Builders), 236117 - New Housing For-Sale Builders.