Typical Lot Size
4,500 – 7,000
sq ft
Max ADUs
2
per lot
Permit Type
Type I (administrative)
Timeline
4 – 6 weeks
Median Home Price
$500,000 – $700,000
Est. ADU Rent
$1,400 – $1,800/mo
Neighborhood Overview
Barkley is a newer development area centered around Barkley Village, an urban village with shops, restaurants, and services. While some subdivisions have HOA restrictions, state law protects your right to build an ADU. The area offers good transit and a walkable commercial core.
Barkley combines residential living with the walkable commercial hub of Barkley Village — a mixed-use development with grocery, dining, retail, and professional services. The surrounding residential streets feature newer homes on compact lots, with a planned community feel. Some subdivisions have HOAs, but Washington's HB 1337 ensures ADUs cannot be outright prohibited.
Barkley lots tend to be on the compact side, reflecting newer development patterns. Many subdivisions were platted with smaller lots and shared community spaces. Lots under 5,000 sq ft may be challenging for detached ADUs.
ADU Construction Allowed
Barkley qualifies for ADU construction under Bellingham's updated ordinance (BMC 20.10.036) and Washington's HB 1337.
- Detached ADUs (DADUs) allowed
- Attached ADUs allowed (basement, addition, above-garage)
- Up to 2 ADUs per lot
- Parking exempt (near transit)
Transit routes: WTA Route 14 (Barkley), WTA Route 1 (Lakeway)
Why Build an ADU in Barkley
- Walkable to Barkley Village — shops, restaurants, grocery, and services
- Newer infrastructure with reliable utility connections
- Strong transit access along Barkley and Lakeway corridors
- Urban village lifestyle appeal attracts quality tenants
- HB 1337 protects ADU rights even in HOA communities
Special Considerations
HOA/CC&R review required
Many Barkley subdivisions have HOAs. While HB 1337 prevents outright ADU bans, CC&Rs may impose design standards on exterior materials, colors, rooflines, and height. Review your specific CC&Rs and budget for any design modifications required to meet HOA standards.
Compact lot sizes
Barkley lots are generally 4,500–7,000 sq ft, with some as small as 4,000 sq ft. On lots under 5,000 sq ft, attached ADUs (basement or addition) may be more practical than detached construction.
Plat-specific setbacks
Some newer Barkley subdivisions have platted setbacks that exceed standard zoning requirements. These plat-specific setbacks take precedence and can reduce buildable area.
Barkley Village walkability premium
ADUs within walking distance of Barkley Village command premium rents due to the convenience of nearby shopping, dining, and services.
Learn more about ADU regulations: Review Bellingham ADU laws, understand the permitting process, or see the complete cost breakdown for Whatcom County.
Ready to get started? Our free feasibility study analyzes your specific parcel in 48 hours.
Frequently Asked Questions
Can my Barkley HOA prevent me from building an ADU?
No. Under Washington's HB 1337, HOAs and CC&Rs cannot fully prohibit ADU construction. However, they can impose reasonable design standards such as exterior materials, colors, and height limits. Review your specific CC&Rs and consult with our team — we have experience navigating HOA requirements in Barkley subdivisions.
Are Barkley lots big enough for a detached ADU?
It depends on the specific lot. Barkley lots range from 4,500 to 7,000 sq ft. Lots over 5,500 sq ft can generally support a compact detached ADU (400–600 sq ft) after setbacks. For lots under 5,000 sq ft, an attached ADU — such as a basement conversion or small addition — is often the better option.
How does Barkley Village proximity affect ADU rental income?
ADUs within walking distance of Barkley Village benefit from the convenience factor — grocery, dining, coffee shops, and services are steps away. This walkability premium typically adds $100–$200/mo to rent compared to similar units in less walkable neighborhoods. Barkley ADUs generally rent for $1,400–$1,800/mo.
