Bedroom, sunroom, garage, or ADU additions built to match your existing home. Based in St. Maries, serving Benewah, Kootenai, and Shoshone counties.
Adding square footage to an existing home means tying into the original structure — matching rooflines, meeting current code, and integrating mechanical systems properly. Vandenberg Construction has been doing this work in Northern Idaho for over two decades.
Based in St. Maries, Vandenberg Construction has served Benewah, Kootenai, and Shoshone County homeowners for over 20 years. Every project starts with a clear scope, honest pricing, and all required permits pulled before work begins.
Typical cost range: $100–$250 per sq ft depending on complexity
Ryan Vandenberg founded this company as a finish carpenter — that background drives the quality standard on every room additions project we take on:
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Idaho Licensed & Insured General Contractor
Mon–Fri 9am–5pm
Bedrooms, family rooms, sunrooms, mudrooms, garages, in-law suites, and ADUs. We also do second-story additions, which require careful structural evaluation of the existing foundation.
Yes — any structural addition requires a building permit plus electrical, plumbing, and mechanical permits depending on what’s included. We pull all permits and schedule inspections.
We start with 3D renderings so you can see the addition alongside the existing structure before work begins. Roofline matching, siding consistency, and material selection are all resolved in the design phase.
Most additions take 3–6 months from permit approval. Smaller additions like a sunroom can move faster; second-story additions take longer due to structural complexity.
Yes. Adding plumbing to an addition requires extending the drain and supply lines — we manage that through our licensed plumbing subcontractors and include it in the overall project scope.
We serve homeowners and property owners in St. Maries, Coeur d’Alene, Kellogg, and all communities listed below.
Vandenberg Construction serves Northern Idaho with quality-first construction and remodeling. Licensed, insured, and permit-ready. Call or fill out the estimate form.
