ADU / In-Law Suites in Southern New Hampshire
Accessory dwelling units (ADUs) and in-law suites are becoming a more common option for homeowners who need additional living space without moving. Whether it’s space for family or a separate living area on the property, these projects require careful planning and a clear understanding of local regulations.
We work with homeowners throughout southern New Hampshire, including the greater Manchester, Nashua, and Concord areas, on ADU and in-law suite projects that are designed to meet state and local requirements.
An ADU is a secondary living space located on the same property as a primary home. These spaces can take several forms, including basement or garage conversions, attached additions, or detached structures such as backyard cottages or carriage houses.
Many homeowners consider an ADU to:
• Create living space for aging parents or adult children
• Add a rental unit for supplemental income
• Provide flexible space for guests or extended family
• Increase long-term property value without relocating
Recent updates to New Hampshire law have made it easier for many single-family homeowners to add an ADU, provided zoning and safety requirements are met. Each town still has its own rules, which is why understanding what’s allowed on your specific property is an important first step.
Every ADU project starts with a conversation about your property, your goals, and what’s realistic based on zoning, utilities, and budget. From there, we help define a clear scope and walk through options so expectations are set before work begins.
Once the scope and pricing are agreed on, we handle permitting as required and coordinate the construction process. Throughout the project, we focus on clear communication, solid construction practices, and minimizing disruption as much as possible.
Costs for ADU and in-law suite projects can vary depending on layout, access, utilities, and finishes. Typical ranges in southern New Hampshire often include:
Basement or garage conversions:
• Finished living space with bathroom or kitchenette
• Existing structure used
• Often starting around $50,000+
Attached in-law suite additions:
• New construction connected to the home
• Bedroom or living space with private bath or kitchenette
• Typically starting around $90,000+
Detached ADUs or carriage houses:
• Separate structure with foundation
• Full kitchen and bathroom
• Utility connections required
• Often starting around $120,000+
Final pricing depends on site conditions, utility requirements, and finish selections. We review these details early so you have a clear understanding of what’s involved.
If you’re considering an ADU or in-law suite and want a straightforward conversation about feasibility, timelines, and costs, reach out to schedule a consultation. We’re happy to review your property and help you decide what makes sense.
Our Core Remodeling Services
Many homeowners who contact us about this type of project are also planning larger updates elsewhere in their home. Two of the most common projects we help with are bathroom remodeling and basement finishing.
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We look forward to hearing from you!