Home Additions in Longview

Longview is about 120 miles south of Seattle on I-5 — roughly two hours from Vladislav's base of operations. For addition and ADU projects in the $60,000–$200,000 range, travel time for site visits and project management is built into the project cost, not billed as a separate line item. The initial on-site consultation is free. Getting a site visit scheduled in Longview typically takes one to two weeks from first contact. Call (206) 591-1096 to get on the calendar and talk through whether your project scope makes sense for the distance.

Rough ranges: a single-room bump-out (200–300 sq ft) starts around $60,000–$90,000; a full in-law suite or AADU with kitchenette and bathroom runs $90,000–$150,000; a new detached ADU under WA HB 1337 starts around $110,000 and scales with finish level. Second-story additions on existing single-story homes run $120,000–$180,000 or more, depending heavily on what the foundation and structural framing require. Factors that move the number: foundation condition, City of Longview permit fees, HVAC approach (mini-split vs. extending existing ductwork), and finish specs — Whirlpool or Frigidaire compact appliances vs. mid-range alternatives, tile selection, millwork detail. Vladislav provides a line-item quote after the site visit. No vague ranges, no allowance games.

Projects within Longview city limits go through the City of Longview Building Division. A standard addition requires a building permit; electrical and plumbing sub-permits get added depending on scope. Cowlitz County Building and Planning handles projects on unincorporated parcels just outside the city boundary — that includes some of the rural areas between Longview and Kelso. Plan review at the city typically runs 6–10 weeks for addition and ADU projects, longer if structural drawings need a revision cycle. Vladislav handles permit submittal as the WA Licensed Contractor on the project. Setback compliance, lot coverage, and FAR checks happen before design is finalized — no surprises mid-build.

Yes. WA HB 1337 (2024) now allows up to two ADUs per single-family lot statewide, which removed several local barriers that used to block DADU projects. In Longview, DADUs still need to meet the city's setback requirements — typically 5 feet from rear and side property lines in SF zones — and height limits that usually cap at 16–20 ft. Lot coverage gets checked against the existing structure footprint before design starts. A typical DADU build — 400–600 sq ft, one bedroom, kitchenette with an Amana or GE compact range, and a three-quarter bath — runs $110,000–$160,000 and takes 4–7 months from permit submission to final inspection. Call (206) 591-1096 and Vladislav will assess the site in person.

Permit timeline drives the schedule more than construction does. The City of Longview Building Division typically runs 6–10 weeks on plan review for addition and ADU submittals — that clock starts at first submittal, before any work begins on site. After permit issuance: a single-room addition takes 8–12 weeks of construction; a full in-law suite or AADU runs 12–18 weeks; a new DADU runs 16–24 weeks of build time. Second-story additions are typically 5–7 months total from permit submission to final inspection. Concrete, structural framing, rough-in inspections, and finish work happen in sequence. Milestones and a substantial-completion date go into the contract, with a penalty clause for missed deadlines — a real commitment, not a ballpark estimate.

Kelso (98626) is directly across the Cowlitz River and shares permit jurisdiction for unincorporated parcels under Cowlitz County Building and Planning. Castle Rock is about 20 miles north on I-5. Woodland and the Clark County line to the south are also within reach for the right project. Project scope determines whether the drive makes sense — for additions and ADUs in the $60,000–$200,000 range, it typically does. Call (206) 591-1096 to talk through your project and location. If it's a good fit, Vladislav will come out for a free on-site assessment and give you a real number.