Home Addition Cost Calculator

Additional Features

Addition Planning

Key considerations for home additions.

  • Site Analysis

    Evaluate property constraints and opportunities. Consider zoning requirements and setbacks.

  • Structural Integration

    Plan connection to existing structure. Assess load paths and foundation requirements.

  • Systems Coordination

    Extend HVAC, electrical, and plumbing systems. Evaluate capacity needs.

  • Design Compatibility

    Match architectural style and materials. Consider future resale value.

Construction Methods

Foundation

Match existing or new system selection.

Framing

Traditional or engineered wood systems.

Roofing

Integration with existing structure.

Exterior

Material matching and weatherproofing.

Environmental Control

  • Insulation Systems

    Meet or exceed energy codes. Consider climate zone requirements.

  • Moisture Control

    Design effective water management. Plan vapor barriers and drainage.

  • Ventilation

    Integrate with existing systems. Plan fresh air requirements.

  • Solar Orientation

    Optimize natural light and heat gain/loss.

Project Management

  • Phasing Strategy

    Minimize disruption to existing space. Plan temporary protection.

  • Quality Control

    Establish inspection points and standards. Document progress.

  • Site Protection

    Protect existing structure and landscape. Control access and safety.

  • Coordination

    Manage trades and material deliveries. Plan for weather impacts.