Typical Lot Size
8,000 – 20,000+
sq ft
Max ADUs
2
per lot
Permit Type
Type I (administrative)
Timeline
4 – 6 weeks
Median Home Price
$800,000 – $1,500,000
Est. ADU Rent
$1,800 – $2,500/mo
Neighborhood Overview
Edgemoor is one of Bellingham's most prestigious neighborhoods, located along Chuckanut Drive with large lots, mature landscaping, and water views. The oversized parcels create exceptional ADU potential, and the premium location commands the highest ADU rents in the city.
Edgemoor occupies a coveted position along Chuckanut Drive south of Fairhaven, where large, wooded lots offer privacy, views, and a connection to nature. The neighborhood has an upscale residential character with homes set back from the road behind mature trees and landscaping. Lot sizes frequently exceed half an acre, providing ample space for generous ADU construction.
Edgemoor has the largest residential lots in south Bellingham. Many parcels exceed half an acre (21,780 sq ft), and some are over one acre. These generous dimensions make Edgemoor ideal for full-size detached ADUs and even dual-ADU projects.
ADU Construction Allowed
Edgemoor 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 4 (Old Fairhaven Parkway)
Why Build an ADU in Edgemoor
- Largest residential lots in south Bellingham — many over half an acre
- Premium Chuckanut Drive location with water views and mature landscaping
- Highest ADU rental rates in Bellingham ($1,800–$2,500/mo)
- Ample space for full-size detached ADUs or dual-ADU projects
- Proximity to Fairhaven, Chuckanut trails, and waterfront access
Special Considerations
Premium construction expectations
Edgemoor's upscale character means ADU designs should match the quality of surrounding homes. Higher-end finishes, premium materials, and thoughtful architectural design are expected. Budget 10–20% more for finishes than a standard ADU build.
Large lot utility costs
On parcels exceeding half an acre, sewer and water connections to a rear-yard ADU can be expensive ($10,000–$20,000) due to the distance from mains. Long driveway or path construction may also be needed.
Tree preservation on wooded lots
Many Edgemoor lots have significant mature trees. The city tree preservation ordinance may require an arborist assessment, and strategic ADU placement can preserve the wooded character while maximizing buildable area.
Dual-ADU potential
Several Edgemoor parcels are large enough for two ADUs. Combined rental income of $3,600–$5,000/mo from two premium ADUs represents significant income potential on these oversized lots.
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
How large of an ADU can I build on an Edgemoor lot?
Edgemoor's oversized lots (8,000–20,000+ sq ft) can support the maximum ADU sizes allowed under Bellingham code. On lots over 10,000 sq ft, detached ADUs of 800–1,000 sq ft are commonly achievable. Some parcels are large enough for two full-size ADUs. Our feasibility study maps the exact buildable area on your specific parcel.
What rental income do premium Edgemoor ADUs generate?
Edgemoor ADUs command the highest rents in Bellingham: $1,800–$2,500/mo for well-designed units with quality finishes. Water view units and those with premium amenities (heated floors, high-end kitchen, covered outdoor space) consistently rent at the top of the range. Dual-ADU projects can generate $3,600–$5,000/mo combined.
Does building an ADU in Edgemoor require higher-end finishes?
While not legally required, Edgemoor's upscale neighborhood character means tenants expect — and will pay for — premium finishes. Hardwood or luxury vinyl flooring, quartz countertops, quality cabinetry, and thoughtful architectural design are standard for Edgemoor ADUs. Budget 10–20% above a standard ADU build for finishes, which is offset by the premium rental income.
