ADU Builder & Accessory Dwelling Unit Contractor in Annapolis
Coalition Construction is Annapolis’s trusted ADU builder delivering fully permitted, custom accessory dwelling units for rental income and multigenerational living. Call us today at (410) 431-1892 for a free estimate.
Custom ADU Design and Build in Annapolis
No two properties are alike, and neither are our ADU designs. Coalition Construction takes a fully custom approach to every accessory dwelling unit we build in Annapolis. That means we start by understanding your property’s layout, your personal goals, and your budget before a single blueprint is drawn. Our in-house design and build process ensures seamless communication from start to finish. We don’t outsource design and then hand it off to a separate contractor. Our team manages the entire project, which means fewer delays, fewer miscommunications, and a final result that actually matches what you envisioned.
Whether you’re converting a detached garage into a stylish apartment, adding an in-law suite to the back of your home, or building a brand-new backyard cottage from the ground up, Coalition Construction delivers a finished product that is code-compliant, energy-efficient, and built to last. If you’re also considering making your main home safer and more accessible for multigenerational living, explore our aging-in-place in Annapolis services to create a seamless, barrier-free experience across your entire property.
Why Build an ADU in Annapolis
Annapolis is one of the most dynamic real estate markets and one of the smartest places in the state to invest in an ADU. Here’s why Annapolis homeowners are choosing to build:
- Strong Rental Demand: Annapolis draws a consistent pool of renters year-round, including young professionals working near the House, naval officers stationed at the U.S. Naval Academy, government contractors, and seasonal visitors drawn by the city’s thriving waterfront tourism economy.
- High Property Values: With median home prices significantly above the state average, Annapolis properties offer excellent equity positions, and a well-built ADU can add $80,000–$150,000 or more in appraised property value.
- Passive Monthly Income: A properly built ADU in Annapolis can realistically generate $1,500–$2,500+ per month in rental income, depending on location, size, and finish level.
- Multigenerational Living: Annapolis families are increasingly choosing ADUs as a dignified, private, yet close-by solution for elderly parents or adult children.
- Housing Shortage Solutions: Both the City of Annapolis and Anne Arundel County actively encourage ADU development to address local housing availability, making the permitting process more accessible than ever.
Building an ADU in Annapolis isn’t just a home improvement; it’s a long-term financial strategy.
ADU Types We Build in Annapolis
Coalition Construction builds every category of accessory dwelling unit that is permitted in Annapolis and Anne Arundel County. Our team is experienced with all ADU types, so we can recommend the right solution based on your lot size, zoning, budget, and goals.
- Detached Backyard Cottages & Carriage Houses: Fully independent structures built in your rear yard, offering maximum privacy for both you and your tenant.
- Attached In-Law Suites with Independent Entrances: Connected to your home but with a private entrance, kitchen, and bathroom, ideal for multigenerational families.
- Garage-to-Apartment Conversions: One of the most cost-effective ADU options; we transform underused garage space into a fully livable, code-compliant apartment.
- Basement Apartment Buildouts: We finish and convert your unfinished basement into a legal, comfortable lower-level dwelling unit with proper egress and utilities. For homeowners who want to maximize unused space below grade, our basement finishing in Annapolis expertise ensures your basement apartment is dry, comfortable, and built to the highest standards.
- Above-Garage Apartment Construction: If your garage structure can support it, we build a second-story apartment above the existing footprint, a smart way to maximize vertical space.
ADU Regulations in Annapolis, MD
Annapolis ADU regulations vary depending on whether your property falls within the City of Annapolis limits or Anne Arundel County. Key areas include:
- Setback Requirements: Minimum distances your ADU must maintain from property lines, the primary structure, and neighboring buildings.
- Maximum Unit Size: Both jurisdictions cap ADU square footage, typically based on a percentage of the main home’s size or a fixed maximum.
- Parking Requirements: Some zones require an additional off-street parking space to be added when an ADU is constructed.
- Owner-Occupancy Rules: Certain Annapolis zones require the property owner to reside on-site (in either the primary home or the ADU).
- Utility Connections: Requirements around whether the ADU must share utilities with the main home or have a separate metered connection.
- Permit & Inspection Process: All ADU projects require building permits, plan review, and staged inspections by the local authority.
Best Accessory Dwelling Unit Contractor in Annapoli
When it comes to choosing an ADU contractor in Annapolis, experience and local knowledge make all the difference. Coalition Construction has built a reputation in the Annapolis area as a contractor that delivers on time, on budget, and to a standard of quality that our clients are proud to show off.
Here’s what sets us apart:
- Local Expertise: We know Annapolis zoning and Anne Arundel County building codes inside and out. No guesswork, no costly surprises.
- Full-Service Project Management: From initial design through final inspection, we manage every phase of your ADU project under one roof.
- Transparent Pricing: You receive a detailed written estimate before work begins. No hidden fees, no scope creep without your approval.
- Licensed & Insured: Coalition Construction is fully licensed and carries comprehensive general liability and workers’ compensation insurance on every project.
- Client-Centered Communication: You receive regular project updates throughout construction. Our team is always reachable and responsive.
- Quality Craftsmanship: We use premium materials and hire skilled tradespeople because we build ADUs we’d be proud to live in ourselves.
If you’re looking for an ADU contractor in Annapolis who treats your project with the same care and professionalism they’d give their own home, Coalition Construction is your team.
FAQs
ADU costs in Annapolis typically range from $90,000 to $230,000, depending on the type, size, and finish level. Contact us at (410) 431-1892 for a free, no-obligation estimate.
Most ADU projects take 5 to 9 months from permit approval to completion, depending on the unit type and site conditions.
Yes, but a local rental license is required. Regulations vary by zone, so we recommend checking with the City of Annapolis or Anne Arundel County before listing your unit.
It depends on your zoning. Some areas require owner-occupancy; others don't. Coalition Construction reviews your zoning upfront so there are no surprises.
Yes. A professionally built ADU can add $80,000 to $150,000+ to your property's value while generating $1,500–$2,500/month in rental income.
Contact Us
Ready to get started? Call Coalition Construction at (410) 431-1892 for a free estimate, or email us at Rich@coalitionconstruction.com. No obligation, no pressure, just honest answers from Annapolis’s ADU experts.