Tampa Publishers Periodical 8602 N 40th St D4COST is the best source to validate any preliminary or conceptual square foot cost estimate, cost feasibility, valuation study, or budget. Tampa FL Publishers Periodical Dc and D Technologies www.d4cost.com d4cost design for cost design4cost cost estimating conceptual estimating square foot cost estimating historical costs building cost estimating software d4cost design for cost design4cost cost estimating conceptual estimating square foot cost estimating historical costs building cost estimating software Business Reviews Dc and D Technologies Testimonials