Seattle's trusted DADU & ADU builder offers custom builds, ADU conversions, and prefab cabins. Transparent pricing, expert guidance, and hands-on construction help homeowners add lasting value with backyard cottages and granny flats.

Ballard Backyard Cottages, Seattle, WA

About Ballard Backyard Cottages

Seattle's Trusted DADU and ADU Builder

When it comes to building a detached accessory dwelling unit (DADU) or ADU in Seattle, this company stands out as a dedicated and experienced ADU builder committed to guiding homeowners through every step of the process. From initial planning to final construction, they are there to ensure the project runs smoothly and delivers lasting value.

Their portfolio spans a wide range of projects, including DADUs, ADUs, and prefab cabins, showcasing their versatility as an accessory dwelling unit builder. Whether a homeowner is looking for a fully custom structure or a transformation of existing space, this team has the expertise to bring the vision to life.

Building Options Tailored to Your Needs

As a flexible backyard cottage builder, they offer multiple pathways to get a project started:

  1. Custom Build – Dream it, and they will build it. Fully custom DADUs designed around the homeowner's specific needs and preferences.
  2. ADU Conversion – Transforming existing space into a functional and comfortable accessory dwelling unit.
  3. Prefab Cabins – A practical and efficient option for those looking for a streamlined building process.

One of the most compelling reasons to consider building a backyard cottage or granny flat is the opportunity it provides for aging in place. A custom-built DADU offers comfort, security, and long-term value — making it an ideal solution for families looking to keep loved ones close while maintaining independence.

Understanding the Cost of Building a DADU in Seattle

Building a DADU is a significant investment, and this ADU contractor believes in full transparency when it comes to costs. Through their informative blog, they break down expenses into clear phases, empowering homeowners to:

  1. Budget with confidence from the start
  2. Ask the right questions throughout the process
  3. Make informed decisions that can save thousands over the course of the project

This commitment to education and transparency sets them apart as a trusted detached ADU builder in the Seattle area. Their blog covers the ins and outs of DADU construction in Seattle, making it a valuable resource for anyone considering this type of project.

For those passionate about construction and design, they also offer opportunities to build DADUs alongside their team — a unique chance to develop real, hands-on skills in the field.

Services

Ballard Backyard Cottages performs the following services

  • Architecture & Design
  • Construction

Ballard Backyard Cottages Reviews

Mariah Sixkiller

2025-08-01
"Michael and his team recently finished work on my DADU, which I could not be happier with. Its the first time Ive had a distinct office space and its made a huge difference for my productivity. The space makes me so happy and came out even better than I imagined! Very pleased and enjoyed working with Michael and his crew."

Lila Williams

2022-12-21
"Michael saved the day on our backyard office project. He swooped in when our first contractor ghosted us. He and his crew was very professional and had great communication. We are delighted with the end result. You will not be disappointed if you work with him - top notch experience!"

melanie belanger

2022-10-26
"Great experience, spectacular crew and stellar work! We purchased our Mini Office to be built off site back in August 2022, so we had to find a contractor to install a gravel pad and run conduit to the mini office from our house for power and internet. Michael from BBC came out, provided a quote, and then his team started the work. They were in constant communication with us, so we knew where we were in every step of the process. They were friendly, super knowledgeable and realistic; they by FAR exceeded my expectations. Not only did BBC provide quality work but they completed the project well ahead of the delivery of the mini office, alleviating a lot of stress on our end. On the day of delivery, Michael and his team came out to assit the operator of the shed mule, including but not limited to directing traffic as it made its way up our driveway, around the side of the house and then installed on the gravel pad, yes, they even had to direct traffic! Once delivered, BBC could have called it a day and closed out the project, but they followed up again after delivery to ensure everything was hooked up correctly and even came out to make a few adjustments for us. We plan to use them for further projects on our house, when you find such an awesome resource you hold on to it for dear life, quality AND service matters and they have it in spades! In short: This company is legit, just use them. I am very picky when it comes to providing good customer service so take my word for it, you will not be disappointed. Period."

Fiona Parkin

2022-02-18
"We did a full remodel, basically creating a new house. Mike worked with us through everything. I would not hesitate to recommend him and have already done so multiple times."

S Nada

2021-09-12
"Contracted Michael for a job that he estimated to cost 25,000 finish in 2.5 weeks. Project took 7.5 weeks cost 50,000. Michaels standard response to his shifting estimates was it will be finished in a couple more days. Unfortunately the quality of his work is mediocre. The electrical was not done to code and we are having to redo it. Michael was unresponsive once his bill paid went radio silent. His crew also left a good amount of junk in the yard which we had to haul ourselves."

Specifics

Opening hours

Monday 8:00AM - 5:00PM
Tuesday 8:00AM - 5:00PM
Wednesday 8:00AM - 5:00PM
Thursday 8:00AM - 5:00PM
Friday 8:00AM - 5:00PM
Saturday -
Sunday -

Location

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