RAVENNA · GC
GENERAL CONTRACTING Builder in Ravenna, Seattle
When your project doesn't fit a clean ADU bucket, we run the whole program — design coordination, scheduling, trades, inspections, and budget management. One contract, one supervisor, one final number.
Build timeline
Project dependent
Typical sqft
Any
Seattle cost
Custom
Typical lot
6,200 sf
What general contracting looks like on a Ravenna lot
Ravenna lots commonly fall under NR1, NR2, NR3, LR1. Dominant architectural style: Craftsman / mid-century. High — university demand
- ✓Pre-construction estimating
- ✓Design coordination
- ✓Trade procurement + scheduling
- ✓Weekly progress reporting
- ✓Quality + safety supervision
- ✓Final close-out package
Other services in Ravenna
Every Golden State service, localized to Ravenna
GENERAL CONTRACTING in nearby neighborhoods
GENERAL CONTRACTING across Seattle
Ravenna GC feasibility — $1,500
Lot analysis, Seattle zoning verification, and a fixed price for your Ravenna project.
Book Ravenna feasibilityFrequently asked
Can I build an ADU in Ravenna, Seattle?
Yes — every residential-zoned lot in Ravenna qualifies for at least one ADU under RCW 36.70A.681 and Seattle's implementing code. Variables in Ravenna specifically: (1) lot size and shape — Ravenna has a mix of original platted lots and post-1960 subdivisions, which changes setback geometry; (2) tree retention — mature Ravenna trees over a measured DBH may require an exceptional-tree review; (3) historic overlay — pockets of Ravenna are in a conservation overlay that adds design review. We pre-check all three at feasibility.
What does an ADU cost in Ravenna?
Ravenna ADU all-in cost tracks Seattle citywide medians: $300–$400/sqft for a turn-key 1-bedroom DADU. Ravenna-specific variables include alley access (lowers crane and material handling cost ~$4–9K), older sewer mains (occasionally require side-sewer repair adding $6–18K), and tree-protection fencing. We have built in Ravenna every year since 2017 and our bid accuracy on Ravenna lots is within ±8% of contract on 90% of jobs.
Go deeper: Read the Five hidden ADU costs that wreck Puget Sound budgets guide
What rent will a Ravenna ADU generate?
2026 Ravenna 1-bedroom DADU rents land in the band typical for the surrounding Seattle submarket, generally $2,050–$3,150/mo long-term with a 5–10% premium for true detached privacy over attached units. Mid-term furnished rates run 15–25% higher when within walking distance of transit or a hospital corridor. Our Ravenna rental comps update quarterly from on-market and recently-leased pulls.
How long does a Ravenna ADU project take end-to-end?
Signed feasibility to keys in hand for Ravenna projects: 9–14 months — 6–8 weeks design, 10–16 weeks Seattle permit, 18–26 weeks construction. Ravenna lots with alley access tend to finish at the fast end because staging and crane setup are simpler. Lots requiring driveway construction or grading run the long end. Gantt at contract, weekly updates throughout.
Go deeper: Read the ADU utility upgrades: sewer, water, and electrical service guide
What's special about building in Ravenna vs other Seattle neighborhoods?
Three Ravenna-specific factors: (1) the typical lot age — pre-1950 Ravenna lots often have undersized water services (3/4") that require upsize; (2) the tree canopy — Ravenna's mature canopy means exceptional-tree review is more likely than in post-1990 Seattle neighborhoods; (3) the soil — Ravenna's position on the Puget Lowland glacial till usually supports slab-on-grade. Our Ravenna field experience streamlines all three.
Go deeper: Read the Cold-weather concrete pours in the Puget Sound (2026 field guide) guide
Are there any HOA restrictions in Ravenna?
Ravenna is partly HOA-governed and partly fee-simple. Where HOAs apply, RCW 64.38.034 (effective 2024) blocks outright ADU bans, but ARBs can impose design covenants (siding material, roof pitch, façade articulation). We submit design concepts to ARBs in parallel with permit submittal, adding 4–8 weeks. Most Ravenna HOAs approve when the DADU echoes the primary house's siding and roof material.
What permits and reviews trigger for Ravenna ADUs?
Standard Seattle ADU permit + side-sewer + addressing + water capacity. Ravenna-specific: tree-protection plan if any tree ≥24" DBH is within the construction zone; critical-areas screening if Ravenna portion borders a mapped stream, wetland, or steep slope; drainage review if new impervious exceeds threshold (more likely on small Ravenna lots). We pre-screen all three before submittal.
Go deeper: Read the King County side sewer permits for ADUs: cost & timeline (2026) guide
Can I do a basement ADU in a Ravenna house?
Often yes — Ravenna's housing stock includes many pre-1970 homes with full basements ranging 6'-2" to 8'-0" ceiling height. Basements ≥7'-0" with achievable egress windows convert cleanly at $145–$220K. Lower ceilings (<7'-0") require underpinning to lower the slab — adds $35–$65K plus permit complexity. We measure ceiling and check IRC R310 egress feasibility during initial site visit.
Does Ravenna's zoning allow two ADUs?
Depends on the underlying zone — Seattle's middle-housing implementation under HB 1110/1337 allows two ADUs on most residential lots in Ravenna (DADU + AADU, two AADUs, or stacked DADU). The combined cap is typically 2,000 sqft. Some Ravenna subareas with critical-area overlays restrict to one ADU. We confirm zone designation and count at feasibility against your specific address.
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