2027 Architect's Square Foot Costbook

Real Projects. Real Costs. Better Early Estimates.

The 2027 BNi Architect's Square Foot Costbook gives you fast, reliable building cost data for conceptual estimating, budgeting, feasibility studies, and early project planning. Whether you're evaluating a new school, medical facility, fire station, office building, apartment complex, or civic project, you'll find current square-foot costs and detailed building system breakdowns that help you develop realistic budgets long before construction documents are complete. Featuring 65 real-world project case studies, hundreds of regional cost modifiers, and detailed CSI-based cost analysis, this Costbook helps you estimate faster, improve accuracy, and make better design and budgeting decisions from concept through development.

Why Choose the Architect's Square Foot Costbook?

• 65 Detailed Building Case Studies – Analyze actual project costs across multiple building types and occupancies.
• Building System Cost Breakdowns – See exactly where construction dollars are spent by CSI division and building component.
• Current 2027 Square Foot Costs – Updated pricing reflects today's construction market conditions.
• Hundreds of Regional Modifiers – Quickly adjust costs for local markets across the United States.
• Supports Early Design Decisions – Evaluate alternatives, compare building systems, and validate project budgets before detailed estimating begins.

This Costbook is Built for Design and Construction Professionals

• Architects & designers
• Cost estimators & project managers
• Owners & developers
• Construction managers

From early conceptual estimates to detailed project bids, this costbook supports every stage of the construction process.

Option #1: Order BNi ACCESS™ Square Foot Edition

From conceptual design and feasibility studies to budget validation and owner presentations, the BNi ACCESS™ Square Foot Edition provides the cost intelligence you need to make informed decisions and keep projects financially on track.

The BNi ACCESS™ Square Foot Edition Includes: 

• • Build Square Foot Estimates Fast Online
  • Export and Share Estimates as Excel or PDF Files
  • 1,200+ Real World Cost Models
  • 10 Different Building Types from civic to medical projects
  • Printed book

View BNi ACCESS™ Square Foot Demo Video

Option #2: Order Book Only

Get all the information you need in a fully indexed printed book format. Perfect for those who prefer the reliability and feel of a physical book for estimating, learning, or reference.

Please note that by ordering this 2027 edition, you will automatically receive a copy of the 2028 edition for a no-obligation 30-day trial, as soon as it is released.  This is to ensure you are always working with the latest available data.  You can opt-out of this auto-renew program at any time.

Disclaimer: BNi ACCESS™ Square Foot is designed for general estimating and project planning purposes. It is not intended for use with Job Order Contracting (JOC) and should not be used for JOC- specific pricing, procurement, or contractual decisions.