4-Bed Modern Farmhouse Plan with Optional Bonus Room – 3654 sq Ft

This modern farmhouse blends expansive living, flexible design, and refined function. With roughly 3,654 sq ft of heated space, 4 bedrooms, 4.5–5.5 baths, and a 3-car garage (807 sq ft), it’s balanced, bright, and built for big family living. Plus, an optional 433 sq ft bonus room adds thoughtful adaptability to the mix. 1

Wide-Open Communal Spaces

Vaulted ceilings and an open floor plan create a grand yet inviting heart to the home—perfect for both lively gatherings and quiet evenings. Natural flow is the secret ingredient. 2

Smart Bedroom Zoning

The master suite serves as a private sanctuary—complete with laundry access and spa fixtures—while three additional bedrooms ensure guests or family members have space and separation. 3

Flexible Bonus Room = Future-Ready

Located above the garage, this optional 433 sq ft bonus room is perfect for a home office, guest suite, media lounge—or whatever your life needs next. 4

Curb Appeal & Functionality Merged

This home balances modern farmhouse charm with organization. Features like the bonus flex space, master-suite convenience, and three-car garage blend form and function beautifully. 5

Quick Specs Summary

  • Heated Living Area: ~3,654 sq ft
  • Bedrooms: 4
  • Bathrooms: 4.5–5.5
  • Bonus Room: ~433 sq ft (optional)
  • Garage: 807 sq ft, 3-car side entry
  • Style: Modern Farmhouse with split-bedroom layout, butler walk-in pantry, and mudroom

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Estimated U.S. Build Cost

At an estimated construction cost of **$150–$220 per sq ft** for modern farmhouse builds, you’re likely looking at roughly **$548,000 to $804,000 USD**. Premium finishes or regional costs may shift the range upward.

Why This Plan Feels Like a Winner

It delivers space where it counts—open areas for connection, private zones for retreat, and flexible spaces that evolve with your life.

Stylish yet smart, this farmhouse plan is ready for all seasons of living.

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