# Arlington In-Law Suite: Private Space for Family That Doesn't Compromise Anyone's Independence > Expert in-law suite design and construction in Arlington, VA. Design-build experience since 1994. Create a comfortable, private space for family — within your home. - **Source:** https://berrizdesign.com/services/adu/in-law-suite/ - **Company:** Berriz Design Build, LLC — Design-build home remodeling and landscape design contractor, founded 1994 - **Contact:** (703) 552-7565 · bob@berrizdesign.com - **Based in:** Arlington, VA - **Service:** In-Law Suite - **Service area:** Arlington, VA, McLean, VA, Vienna, VA, Great Falls, VA, Oakton, VA, Alexandria, VA, Clifton, VA, Fairfax Station, VA ## Questions and answers **What is an in-law suite and what does it include?** An in-law suite is a self-contained living space within or attached to the primary home, designed for a family member. A complete in-law suite typically includes a private entrance, bedroom, bathroom, and kitchenette or kitchen. Berriz Design Build designs each suite based on the specific needs of the person who will occupy it. **Where can an in-law suite be located in an Arlington home?** Common locations include finished basements, first-floor additions, above-garage spaces, and main-level room conversions. The best location depends on your home's existing layout, the family member's mobility needs, and your budget. Berriz Design Build evaluates all options during the initial consultation. **How much does an in-law suite cost in Arlington, VA?** In-law suite costs in Arlington typically range from $80,000 for a basic interior conversion to $250,000+ for a comprehensive addition with full kitchen and private entrance. Use our Pricing Guide for current ranges. **Do I need permits for an in-law suite in Arlington?** Yes. Any in-law suite that includes electrical, plumbing, or structural changes requires Arlington County permits. If the suite qualifies as an ADU under Arlington's ordinance, additional zoning approval is required. Berriz Design Build manages all permit requirements. **How do I ensure privacy and acoustic separation in an in-law suite?** Acoustic separation requires sound-rated wall and ceiling assemblies, solid-core doors, and careful attention to HVAC duct routing. Berriz Design Build incorporates acoustic separation as a standard design consideration in every in-law suite project. **Why choose Berriz Design Build for an in-law suite in Arlington?** Arlington renovation experience since 1994, in-house design and construction, and a genuine understanding of what makes an in-law suite work for the whole family — not just the person who will occupy it. ## Page content The Berriz Perspective Most in-law suite designs fail for the same reason: they prioritize convenience over dignity. A space that feels like a converted spare bedroom will never feel like home to the person living in it. An in-law suite that works — that actually improves the family dynamic rather than straining it — requires genuine design attention: private entrance, acoustic separation, independent climate control, a kitchen or kitchenette that enables real independence, and a bathroom designed for the specific needs of the person who will use it. Berriz Design Build has designed in-law suites throughout Arlington since 1994. We understand that this isn't just a construction project. It's a decision about how your family will live together — and we design it accordingly. Common Questions ## What Arlington Homeowners Ask About In-Law Suite ### Discovery & Eligibility What is an in-law suite and what does it include? An in-law suite is a self-contained living space within or attached to the primary home, designed for a family member. A complete in-law suite typically includes a private entrance, bedroom, bathroom, and kitchenette or kitchen. Berriz Design Build designs each suite based on the specific needs of the person who will occupy it. Where can an in-law suite be located in an Arlington home? Common locations include finished basements, first-floor additions, above-garage spaces, and main-level room conversions. The best location depends on your home's existing layout, the family member's mobility needs, and your budget. Berriz Design Build evaluates all options during the initial consultation. ### Cost & Permitting How much does an in-law suite cost in Arlington, VA? In-law suite costs in Arlington typically range from $80,000 for a basic interior conversion to $250,000+ for a comprehensive addition with full kitchen and private entrance. Use our Pricing Guide for current ranges. Do I need permits for an in-law suite in Arlington? Yes. Any in-law suite that includes electrical, plumbing, or structural changes requires Arlington County permits. If the suite qualifies as an ADU under Arlington's ordinance, additional zoning approval is required. Berriz Design Build manages all permit requirements. ### Process & Partnership How do I ensure privacy and acoustic separation in an in-law suite? Acoustic separation requires sound-rated wall and ceiling assemblies, solid-core doors, and careful attention to HVAC duct routing. Berriz Design Build incorporates acoustic separation as a standard design consideration in every in-law suite project. Why choose Berriz Design Build for an in-law suite in Arlington? Arlington renovation experience since 1994, in-house design and construction, and a genuine understanding of what makes an in-law suite work for the whole family — not just the person who will occupy it. Explore the Practice ## Related services ### Detached ADU Expert detached ADU design and construction in Arlington, VA. 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Request a Consultation Call (703) 552-7565 Chat With Us Now Pricing Guide ↗ The Berriz Way ↗ See Our Work --- *Berriz Design Build, LLC, Arlington VA. Design/build remodeling since 1994. (703) 552-7565*