Cosman Construction

, mostly addition work

  • 5 jobs in Boulder, 2024 to 2026
  • Typical permit value $45,000
  • All 5 jobs are additions

Boulder publishes no contractor license list we can check, so this page counts permits only. Ask for the license number and check it with the state before you hire.

Jobs by type of work

Most recent jobs

DateWorkZIPStated value
2026-04-27AdditionReplacement of existing back deck with similar footprint. Distances to setbacks remain the same ADDITION80301$55,000
2026-03-25AdditionReconstruction of back deck and stairwell/roof ADDITION80305$45,000
2024-10-14AdditionFull rebuild of 140 square foot back deck and stairs ADDITION80303$20,000
2024-05-08AdditionReconstruction of North and West deck to same footprint ADDITION80304$60,300
2024-04-29AdditionReplacement of existing back deck and stairs to same footprint ADDITION80305$32,065

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Paying for your addition

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A house with new framing and plywood walls for more roomsSee all 48 home addition contractorsRanked by jobs in Boulder