Barndominiums /
ADU / DADU

Affordable, Flexible, and Timely Solutions for Your Barn Needs

As pole barn builders, our building techniques allow for economical, flexible, and timely building options, whether building an agricultural barn, gambel-style barn, or monitor-style barn.

We are proud to say we have built hundreds of barns and agricultural buildings throughout Skagit, Whatcom, Snohomish, King, San Juan, and Island counties.

ADU Exterior
White custom home with staiway
Lang Front Barn with a balcony

Spane Buildings – Where Size, Functionality, and Customization Meet Your Budget

As the region’s leading agricultural building contractor, we take many factors into consideration during the design process Including the type of siding, overall size, direction of natural sunlight, the roof style with respect to rain and snow fall, stalls, cupolas, ventilation, porches and storage. Your barn or agricultural building can be as practical or luxurious as your budget and vision allow. Our expert team looks forward to working with you to get the job done right. Please contact us today for a quote.

Our Barndominium ADU/DADU Projects

white barndominium

Barndominium 1

bardominium

Barndominium 2

grey barn with living space

Barndominium 3

Custom Home with balcony

Barndominium 4

tan barn/shop

Barndominium 5

Custom Home red and grey

Barndominium 6

White custom home with staiway

Barndominium 7

Three bay garage built by spane with living space above and balcony porch. Metal siding.

Barndominium 8

Garage on Camano

Barndominium 9

A Spane Buildings post frame home in Mt Vernon WA

Barndominium 10

Sage three car garage with metal roof and white trim by Spane Buildings

Barndominium 11

WE HAVE HAD THE BEST EXPERIENCE WATCHING OUR NEW GARAGE/SHOP GROW…the people building our project were very professional and aware of our surrounding at all times. Jim Spane is among the best contractors I have worked with and we both highly recommend Spane Construction.

- Joe Trautt