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Custom Home Additions in Oregon & Washington

RDL Construction specializes in designing and building high-quality home additions throughout Oregon and Washington. Our expertise in both concrete foundation work and full construction services ensures your new addition is seamlessly integrated with your existing home, both structurally and aesthetically.
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Service Overview

Our home addition services provide the perfect solution when you need more space but love your current location, allowing you to expand your home to meet your changing needs.

At RDL Construction, we understand that adding onto your home is a significant investment. Our comprehensive approach ensures your addition is thoughtfully designed, properly engineered, and expertly constructed to match your existing home while addressing your specific needs.

Our home addition services include:

  • Room additions (family rooms, bedrooms, offices)
  • Kitchen expansions
  • Bathroom additions
  • Primary suite additions
  • Second-story additions
  • Garage additions and expansions
  • Sunrooms and enclosed porches
  • In-law suites and accessory dwelling units (ADUs)
  • Mudrooms and entryway additions
  • Basement finishing and walkout additions

Why Choose RDL Construction

Our unique approach to home additions combines structural expertise with architectural vision to create seamless expansions that look and feel like they’ve always been part of your home.

  • Foundation Expertise: Our background in concrete work ensures your addition has a solid, properly engineered foundation
  • Structural Integration: We expertly tie new construction into existing structures, addressing critical load-bearing considerations
  • Seamless Matching: We carefully match existing architectural elements, finishes, and materials for a cohesive appearance
  • Comprehensive Management: Our team handles all aspects from design through construction, including permitting and inspections

As a full-service general contractor with specialized concrete experience, we bring unique structural knowledge to your home addition project. This foundation-first approach ensures your addition is built on solid ground with proper integration to your existing home’s structure.

Our Home Addition Process

We follow a proven, systematic approach to home additions that ensures exceptional results and client satisfaction at every stage.

1. Initial Consultation & Site Evaluation
We meet to discuss your needs, budget, and vision for your addition. We evaluate your existing home, property constraints, and structural considerations that will inform the design.

2. Design Development & Planning
Our team works with you to develop plans that maximize your space while complementing your home’s existing architecture. We address both aesthetic and structural integration throughout the design process.

3. Detailed Estimation & Engineering
We provide comprehensive cost estimates and timeline projections. Our engineering team ensures all structural elements are properly designed, especially the critical connection points between new and existing construction.

4. Permitting & Preparation
We handle all necessary permits and prepare your property for construction, including site protection measures and temporary accommodations to minimize disruption to your daily life.

5. Foundation & Structural Work
Our concrete specialists create a solid foundation for your addition, followed by framing and structural integration with your existing home—a critical phase where our expertise is particularly valuable.

6. Construction & Finishing
Our skilled teams complete all aspects of construction, from mechanical systems to interior and exterior finishes, with careful attention to matching existing elements for a seamless transition.

Popular FAQs

Frequently Asked Questions

How long does a typical home addition take to complete?
Home addition projects typically take between 3-6 months from start to finish, depending on the size and complexity. Factors that affect timeline include the type of addition (second story additions typically take longer than ground-level expansions), weather conditions, material lead times, and the extent of site work required. We provide detailed timelines during our planning process.
Will my family need to move out during construction of a home addition?
In most cases, families can remain in their homes during addition construction, as work is primarily contained to the new area. However, there will be periods when construction affects utilities or requires opening walls between existing and new spaces. We develop specific plans to minimize disruption and maintain safety throughout the process.
How do you ensure the addition matches our existing home?
We take careful measurements and photographs of existing architectural elements, finishes, and materials to ensure proper matching. For older homes, we source period-appropriate materials or custom-fabricate elements when necessary. Our design process specifically addresses the transition points between old and new, both inside and out, to create a seamless integration.
Do home additions require special permits or approvals?
Yes, home additions typically require building permits, and may also need zoning approval, HOA authorization, or other special permissions depending on your location and property type. In some neighborhoods with historic designations, design review may be required. Our team handles all permitting processes, including submission of plans, coordination with inspectors, and compliance with local regulations.