Contractor Profile
Interior Alterations
Interior Alterations concentrates in commercial alteration in Denver (95% of its 418 segment-eligible permits), with secondary activity across 1 other segment. Its permit record in Denver spans 2011–2026. Reliable permit valuations total ≈$48.3M (across the 96% 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.
First permit: Jul 21, 2011 (5,566d ago)Latest permit: Jul 31, 2026 (77d ago)
The sales record
- Market
- Denver
- Active
- 2011–2026 · 15 yrs
- Licence IDs on their permits
- —
- Reliable value
- $48.3M
- Coverage
- 96%
- Reliable filings
- 398
- Rank in Denver
- #36
- Permits (all-time, all segments)
- 416
- Filings 90d
- 4
- Filings 30d
- 0
- Latest permit
- Jul 31, 2026
Typical project size$63Ktypically $25K–$119K across 398 valued permits
Where they work
Primarily Commercial Alteration — 95% of 418 segment-classified permits
Firmographics
License & registration IDs on fileNot in our data — we don’t hold licensing-board registries, and this city’s permit records carry no licence number. This is a gap in our coverage, not a statement about this firm’s licensure.
Direct contactNot in our data — we don’t fabricate firmographics.
Monthly activity
Oct ’240–4 permits/moSep ’26
permits per month permit value
Service area
Typical service area ~5 mi in Denver
The p90 footprint of where Interior Alterations has pulled permits in Denver — drawn from all 418 of their indexed permits. It reflects detected permit activity, not a guaranteed service-area claim.
- Denver418
Recent permitsLargest recent$982K· 1200 17th St 140 Bldg
Showing 20 of 418 permits by Interior Alterations in the indexed window · most recent first
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- Sep 11, 2026Commercial Alteration717 17th StAlteration$256Kapplied Aug 28, 2026
- Aug 7, 2026Commercial Alteration1700 N Broadway 1200Alteration$87Kapplied May 28, 2026
- Jul 31, 2026Commercial Alteration1200 17th St 970 UnitAlteration$64K
- Jul 31, 2026Commercial Alteration1801 California 5100Alteration$615Kapplied May 20, 2026
- May 15, 2026Commercial Alteration1200 17th St 2775Alteration$100Kapplied Apr 1, 2026
- Apr 24, 2026Commercial Alteration1200 17th St 2750Alteration$426Kapplied Mar 20, 2026
- Mar 26, 2026Commercial Alteration600 N Grant StAlteration—applied Jan 6, 2026
- Mar 2, 2026Commercial Alteration1200 17th St 1225 BldgAlteration$63Kapplied Feb 26, 2026
- Mar 2, 2026Commercial Alteration1200 17th St 140 BldgAlteration$982Kapplied Jan 8, 2026
- Feb 12, 2026Commercial Alteration1200 17th St 1 BldgAlteration$139Kapplied Jan 21, 2026
- Jan 14, 2026Commercial Alteration1801 California St 3600 SuiteAlteration$324Kapplied Dec 11, 2025
- Jan 7, 2026Commercial Alteration1675 Larimer StAlteration$45Kapplied Dec 24, 2025
- Dec 23, 2025Commercial Alteration1800 Larimer StAlteration$269Kapplied Nov 25, 2025
- Dec 5, 2025Commercial Alteration1801 California St 3875 SuiteAlteration$918Kapplied Nov 6, 2025
- Sep 29, 2025Commercial Alteration600 N GrantAlteration$958Kapplied Aug 8, 2025
- Sep 8, 2025Commercial Alteration1700 N Lincoln StAlteration$95Kapplied Aug 18, 2025
- Sep 3, 2025Commercial Alteration2373 15th StAlteration$337Kapplied Sep 2, 2025
- Sep 3, 2025Commercial Alteration1200 17th St 1 BldgAlteration$47Kapplied Sep 2, 2025
- Aug 1, 2025Commercial Alteration1740 N BroadwayAlteration$40Kapplied Jul 29, 2025
- Jul 21, 2025Commercial Alteration1200 17th St 1 BldgAlteration$80Kapplied Jul 17, 2025
Sep 11, 2026 applied Aug 28, 2026 | 717 17th St | Commercial Alteration | $256K |
Aug 7, 2026 applied May 28, 2026 | 1700 N Broadway 1200 | Commercial Alteration | $87K |
Jul 31, 2026 | 1200 17th St 970 Unit | Commercial Alteration | $64K |
Jul 31, 2026 applied May 20, 2026 | 1801 California 5100 | Commercial Alteration | $615K |
May 15, 2026 applied Apr 1, 2026 | 1200 17th St 2775 | Commercial Alteration | $100K |
Apr 24, 2026 applied Mar 20, 2026 | 1200 17th St 2750 | Commercial Alteration | $426K |
Mar 26, 2026 applied Jan 6, 2026 | 600 N Grant St | Commercial Alteration | — |
Mar 2, 2026 applied Feb 26, 2026 | 1200 17th St 1225 Bldg | Commercial Alteration | $63K |
Mar 2, 2026 applied Jan 8, 2026 | 1200 17th St 140 Bldg | Commercial Alteration | $982K |
Feb 12, 2026 applied Jan 21, 2026 | 1200 17th St 1 Bldg | Commercial Alteration | $139K |
Jan 14, 2026 applied Dec 11, 2025 | 1801 California St 3600 Suite | Commercial Alteration | $324K |
Jan 7, 2026 applied Dec 24, 2025 | 1675 Larimer St | Commercial Alteration | $45K |
Dec 23, 2025 applied Nov 25, 2025 | 1800 Larimer St | Commercial Alteration | $269K |
Dec 5, 2025 applied Nov 6, 2025 | 1801 California St 3875 Suite | Commercial Alteration | $918K |
Sep 29, 2025 applied Aug 8, 2025 | 600 N Grant | Commercial Alteration | $958K |
Sep 8, 2025 applied Aug 18, 2025 | 1700 N Lincoln St | Commercial Alteration | $95K |
Sep 3, 2025 applied Sep 2, 2025 | 2373 15th St | Commercial Alteration | $337K |
Sep 3, 2025 applied Sep 2, 2025 | 1200 17th St 1 Bldg | Commercial Alteration | $47K |
Aug 1, 2025 applied Jul 29, 2025 | 1740 N Broadway | Commercial Alteration | $40K |
Jul 21, 2025 applied Jul 17, 2025 | 1200 17th St 1 Bldg | Commercial Alteration | $80K |
Sites Interior Alterations returns to6 in Denver
Addresses where Interior Alterations 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.
Other top Commercial Alteration contractors in Denver
- Ejcm1,140 commercial alteration
- Boots Construction Company825 commercial alteration
- Hensel Phelps Construction741 commercial alteration
- Provident Construction690 commercial alteration
- Coda Construction Group613 commercial alteration
- Saunders Construction511 commercial alteration
Put Interior Alterations on your call list.
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