How much does a detached Accessory Dwelling Unit (Second Suite) cost?
This is a difficult question to answer without knowing the specifics of your project. ADU’s have the same budget realities as any new home… a second home in your backyard.
For a new, detached ADU in Minneapolis, MN, here are some rough guesstimates:
$150,000 - 250,000 Construction cost with a General Contractor
$18,000 - 35,000 Architectural fees (8-14% of construction costs)
$1500 - 3000 Structural Engineering fees
$1500 - 2500 Surveying
$4000 - 9,500 Utility connections to primary residence
TOTAL: $175,000 - $300,000
Again, this is a very generic budget with minimal detail. Specific factors will influence the total cost, including: availability of contractors, quality of finishes and appliances, quality of the soil, or special factors requiring variances for city approval. We address potential costs with you before beginning your project.
How long does it take to design and build a detached Accessory Dwelling Unit (Second Suite)?
This is also a difficult question to answer without knowing the specifics of your project. Weather, for one, is especially hard to predict!
For a new, detached ADU in Minneapolis, MN, here are some rough guesstimates based on experience:
2-4 weeks Site Survey
8-16 weeks Design and documentation
4-8 weeks Permit approval
4-8 months Construction
TOTAL: 6-12 months