Duffey Construction CO INC
Duffey Construction CO INC is a specialist commercial alteration contractor in Miami — all 12 of its segment-eligible permits fall in commercial alteration. Its permit record in Miami spans 1987–2026. Reliable permit valuations total ≈$10.0M (across the 100% of filings with a valuation we can stand behind). Filing activity is up 100% over the last 90 days versus the prior 90 — a market heating up.
- Market
- Miami
- Active
- 1987–2026 · 39 yrs
- Licence IDs on their permits
- 2
- Reliable value
- $10.0M
- Coverage
- 100%
- Reliable filings
- 12
- Rank in Miami
- #4,031
- Permits (all-time, all segments)
- 11
- Filings 90d
- 2
- Filings 30d
- 0
- Latest permit
- Jul 13, 2026
Primarily Commercial Alteration — 100% of 12 segment-classified permits
- CGC000001
- CGC011976
As named in the permit records — identifiers we surface, not verified state licensure.
Typical service area ~7 mi in Miami
The p90 footprint of where Duffey Construction CO INC has pulled permits in Miami — drawn from all 12 of their indexed permits. It reflects detected permit activity, not a guaranteed service-area claim.
- Miami12
Showing 12 of 12 permits by Duffey Construction CO INC in the indexed window · most recent first
- Aug 17, 2026Commercial Alteration600 NW 79 Ave, Miami, FLAlteration$72Kapplied Jun 18, 2026
- Jul 13, 2026Commercial Alteration444 NW 79 Ave, Miami, FLAlteration$4.1Mapplied Feb 27, 2026
- May 4, 2026Commercial Alteration9405 Old Dixie Highway, Miami, FLAlteration$445Kapplied Feb 27, 2026
- Feb 3, 2026Commercial Alteration600 NW 79 Ave, Miami, FLAlteration$1.1Mapplied Oct 31, 2025
- Dec 2, 2025Commercial Alteration2615 NW 79 St, Miami, FLAlteration$585Kapplied Jul 8, 2025
- Sep 9, 2025Commercial Alteration45 NW 5 St, Miami, FLAlteration$780Kapplied May 8, 2025
- Aug 7, 2025Commercial Alteration600 NW 79 Ave, Miami, FLAlteration$368Kapplied Jun 5, 2025
- May 21, 2025Commercial Alteration600 NW 79 Ave 8609, Miami, FLAlteration$780Kapplied Mar 11, 2025
- May 7, 2025Commercial Alteration600 NW 79 Ave 5, Miami, FLAlteration$966Kapplied Feb 26, 2025
- Feb 15, 2024Commercial Alteration2301SW 100th Ave, Miami, FLAlteration$675applied Apr 18, 2024
- Dec 1, 2023Commercial Alteration444NW 79th Ave, Miami, FLAlteration$692Kapplied Oct 24, 2024
- —Commercial Alteration6001NW 70th Ave, Miami, FLAlteration$75K
Aug 17, 2026 applied Jun 18, 2026 | 600 NW 79 Ave, Miami, FL | Commercial Alteration | $72K |
Jul 13, 2026 applied Feb 27, 2026 | 444 NW 79 Ave, Miami, FL | Commercial Alteration | $4.1M |
May 4, 2026 applied Feb 27, 2026 | 9405 Old Dixie Highway, Miami, FL | Commercial Alteration | $445K |
Feb 3, 2026 applied Oct 31, 2025 | 600 NW 79 Ave, Miami, FL | Commercial Alteration | $1.1M |
Dec 2, 2025 applied Jul 8, 2025 | 2615 NW 79 St, Miami, FL | Commercial Alteration | $585K |
Sep 9, 2025 applied May 8, 2025 | 45 NW 5 St, Miami, FL | Commercial Alteration | $780K |
Aug 7, 2025 applied Jun 5, 2025 | 600 NW 79 Ave, Miami, FL | Commercial Alteration | $368K |
May 21, 2025 applied Mar 11, 2025 | 600 NW 79 Ave 8609, Miami, FL | Commercial Alteration | $780K |
May 7, 2025 applied Feb 26, 2025 | 600 NW 79 Ave 5, Miami, FL | Commercial Alteration | $966K |
Feb 15, 2024 applied Apr 18, 2024 | 2301SW 100th Ave, Miami, FL | Commercial Alteration | $675 |
Dec 1, 2023 applied Oct 24, 2024 | 444NW 79th Ave, Miami, FL | Commercial Alteration | $692K |
— | 6001NW 70th Ave, Miami, FL | Commercial Alteration | $75K |
Addresses where Duffey Construction CO INC has pulled repeat permits and the site itself has a deep permit history (25+ permits, all contractors). Each links to that parcel’s full record.
- Casanova Services Group CORP205 commercial alteration
- Home Depot U.S.A. INC192 commercial alteration
- Superior Landscaping & Lawn Service INC182 commercial alteration
- R.J.S. Consultants INC. Dba:prestige Windows & Doors151 commercial alteration
- Best Roofing Services LLC Dba:best Roo139 commercial alteration
- Best Roofing Services LLC Dba:best Roofing130 commercial alteration
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