Yen Design Inc.

Yen Design Inc. We help investors, homeowners and contractors with remodels, additions, DADUs, and New Construction projects.

Weโ€™ve been committed to helping Investors, homeowners, and contractors, in the Greater Seattle Area with their design, drafting, construction drawing and permitting needs since 2010. Since 2010, our passionate and dedicated team at Yen Design Inc has been helping clients in and around Seattle with all of their design and permitting needs for single family homes. We provide a full service team base

d process including floor plan as-builts, design schematics, 3d modeling, construction drawings, coordination with engineers for complete permit ready drawing sets and permit acquisition services. By sitting down with our clients and listening to their ideas, we are able to develop designs that are beautiful, functional, and feasible.

Introducing our new E2 DADU! ๐ŸกOur previous Erez DADU earned its reputation by doing a lot with a tight footprint: 3 bedr...
05/22/2026

Introducing our new E2 DADU! ๐Ÿก

Our previous Erez DADU earned its reputation by doing a lot with a tight footprint: 3 bedrooms, 2.5 bathrooms, a 1-car garage, and a functional laundry area, all within Seattleโ€™s 1,000 sq. ft. FAR limit. It has been built by first-time investors and repeated by experienced builders 133 times over the last four years.

With Seattleโ€™s new 1,200 sq. ft. FAR allowance, the E2 takes that same proven concept and adds a major improvement in livability.

๐Ÿ“ 1,337 sq. ft.
๐Ÿ›๏ธ 3 beds
๐Ÿ› 2.5 baths
๐Ÿš— 1-car garage
โœจ Bonus flex space on the main level โ€” desk nook / coffee bar / pantry space / bike storage
๐Ÿฝ๏ธ Larger kitchen
๐Ÿ“ 9' ceilings
๐Ÿ›Œ Larger bedrooms
๐Ÿ› 5-piece primary bath

A 40' x 40' open yard area will be enough buildable area in most cases. Send over your address and we can verify whether it will work for your site.

Engineering is complete and the standard plan number is in progress. Once we have a survey to confirm the site works, we can move quickly toward permit approval!

Des Moines DADU with a view! This is a unique site on a slope - construction drawings are in progress!(quick Gemini rend...
03/23/2026

Des Moines DADU with a view! This is a unique site on a slope - construction drawings are in progress!

(quick Gemini render)

๐Ÿšจ BIG Seattle Zoning Update ๐Ÿšจ1,200 sq ft DADUs are now allowed!The code was finalized and signed by the mayor in Decembe...
01/07/2026

๐Ÿšจ BIG Seattle Zoning Update ๐Ÿšจ
1,200 sq ft DADUs are now allowed!

The code was finalized and signed by the mayor in December.

Effective January 21 โ€” any plans accepted for review by the city will be vested under the new code. This means we start designing to the 1,200 sq-ft limit NOW!

Based in the greater Seattle area, we help homeowners and investors get building permits for their residential and commercial projects with our architectural design and structural engineering services.

Our Chicago DADU is another great 3-bed, 2.5-bath design with a 1-car garage. ๐ŸกUpstairs features a unique Jack-and-Jill ...
12/16/2025

Our Chicago DADU is another great 3-bed, 2.5-bath design with a 1-car garage. ๐Ÿก

Upstairs features a unique Jack-and-Jill bathroom shared between two bedrooms. Efficient, practical, and ideal for maximizing space. โœจ

Check out the Matterport floor plans in the listing for a closer look. ๐Ÿ‘€๐Ÿ“

This 1073 square feet Condo home has 3 bedrooms and 3 bathrooms. It is located at 12531 25th Avenue NE Unit C, Seattle, WA.

Coming along nicely, love to see it! We had a few Stewart DADUs built this year. Great 2 bed / 2.5 bath DADU if you don'...
11/26/2025

Coming along nicely, love to see it!

We had a few Stewart DADUs built this year. Great 2 bed / 2.5 bath DADU if you don't have the space for a garage.

I think this is the first Erez I've seen with french doors out the back. Makes room for a nice functional island! Nice w...
11/21/2025

I think this is the first Erez I've seen with french doors out the back. Makes room for a nice functional island!

Nice work Rachel & Eric!

(NWMLS as Distributed by MLS Grid) For Sale: 3 beds, 2.5 baths โˆ™ 1078 sq. ft. โˆ™ 13752 3rd Ave NW, Seattle, WA 98177 โˆ™ $815,000 โˆ™ MLS # 2456771 โˆ™ A newly built 3-bedroom home in desirable Broadview. Refined luxury & quiet privac...

Looking good!
07/01/2025

Looking good!

Listed for sale at $775000. 2025-built modern home in a prime Seattle location! This 3 bed, 2.25 bath stunner features vaulted ceilings in all bedro...

We added a 2-story ADU above the garage of this Kenmore home ๐Ÿกโœจ โ€” a 2023 project that expanded the living space and intr...
04/16/2025

We added a 2-story ADU above the garage of this Kenmore home ๐Ÿกโœจ โ€” a 2023 project that expanded the living space and introduced a fresh, modern look.

This 2016 Lake Forest Park new construction navigates a steep rear slope and setback constraints with a cantilevered upp...
04/09/2025

This 2016 Lake Forest Park new construction navigates a steep rear slope and setback constraints with a cantilevered upper level that pushes the limit of allowable floor area. The result is a unique, functional footprint that maximizes both space and site potential.

๐Ÿ“ Check out the unique floor plan shaped by topography and LFP's strict critical area code.

You might not be able to tell with all the junk piled up, but there was a foot of standing water in this basement! ๐Ÿ’ฆ๐Ÿ˜ฑWe ...
04/04/2025

You might not be able to tell with all the junk piled up, but there was a foot of standing water in this basement! ๐Ÿ’ฆ๐Ÿ˜ฑ

We had to play โ€œthe floor is lavaโ€ just to get measurementsโ€”totally worth it for the final product. ๐Ÿ”ฅ๐Ÿก

Shoutout to Flipping Seattle for an amazing transformation! ๐Ÿ‘๐Ÿ‘

Address

17171 Bothell Way NE Street A107
Lake Forest Park, WA
98155

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+12064321111

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