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
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.