• ADUs + In-Law Suites

Create Private Living Space While Keeping Family Close

Winchester Construction helps homeowners evaluate and create accessory dwelling units and in-law spaces that fit the property, the family and the long-term plan.

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  • What we do

One Property. More Ways to Use It.

An ADU can create a separate or semi-independent living space for parents, adult children, long-term guests or future needs. Depending on the property and local rules, the best answer may be attached space, a detached unit or a conversion of space you already have.

Attached ADU

New living space connected to the primary home, often a strong fit for family use and easier daily connection.

Detached ADU

A separate backyard or secondary structure where zoning, site conditions and utilities allow.

Basement ADU

Use existing lower-level square footage when ceiling height, egress, moisture and systems make the conversion practical.

Garage Conversion

Transform an attached or detached garage into useful living space when structure and access support it.

  • We start here

Property First. Floor Plan Second

Before falling in love with a design, we look at the practical issues that determine whether the idea works: zoning, setbacks, access, utilities, septic or sewer, existing structures, parking and budget.

Zoning
Setbacks
Utilities
Septic / Sewer
Access
Budget
Design Needs
Permitting
  • Good fit?

An ADU May be Worth Exploring If...

  • You want parents nearby with more privacy
  • You need flexible space for adult children
  • You have unused basement or garage space
  • You want the home to adapt over the next 10–20 years
  • You would rather improve the property than move
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