Services Available from Koch Construction & Remodeling
Custom Home Builder Services in Olathe KS
We build custom homes across Olathe and the wider Johnson County region, from standard residential builds to complex, high-spec projects. Our two primary specialties are Barndominium Construction and Basement Finishing Contractor services. Every project in this area involves local soil conditions, Johnson County site requirements, and Olathe building codes. Select a category below to see what applies to your specific project.
Custom Home Building Olathe KS
Johnson County permits steel-frame barndominium builds on AG-zoned and transitional parcels, making this one of the most requested project types in the area.
Both post-frame and hybrid stick-frame systems are viable under Olathe's current residential code. We handle new construction, spec builds, and owner-provided lot projects from permit to final inspection.
Basement Services Olathe KS
Olathe sits on expansive CH-classified clay soils, so moisture management must be addressed before any finishing work begins.
Our primary technical specialty here is Basement Finishing Contractor work, from framing and insulation to full living space buildouts. Johnson County requires egress compliance under IRC R310 for all finished basement sleeping areas.
Deck & Outdoor Living Olathe KS
Johnson County requires a minimum frost depth of 36 inches for all deck footings; a spec that directly affects material costs and timeline.
Olathe's wind exposure category (B/C) means ledger attachment must meet IRC Table R507.2 requirements. Kansas summers regularly exceed 95°F, so composite vs. pressure-treated material selection is both a code decision and a long-term durability call.
Home Additions & Exterior Construction Olathe KS
Olathe requires a full building permit for any addition exceeding 120 square feet; no exceptions. Johnson County setback rules apply to all exterior expansion, and side yard minimums shift depending on your zoning district.
Any addition must match the existing foundation type, or a licensed engineer must provide a stamped transition detail before permit approval.
General Contracting & Interior Remodeling Olathe KS
All interior structural work in Olathe falls under the 2018 IRC as adopted by Johnson County, and no local amendments change that baseline.
Load-bearing wall removal requires a stamped engineering plan submitted to the city before any permit is issued. Olathe's residential inspection queue currently averages 2–5 business days for rough-in stages, so project timelines must account for that.
Residential & Commercial Construction Olathe KS
Olathe is one of the fastest-growing cities in Kansas, with active new commercial zones near I-35 and 151st Street.
Commercial projects in Olathe fall under the 2018 IBC, which runs on a separate plan review track from residential work.
Mixed-use and light commercial builds on transitional parcels face dual-code review by Johnson County, adding time and documentation requirements.
Septic System Services Olathe KS
Johnson County Environmental Health regulates all septic permits, and KDHE takes over on parcels larger than 2 acres.
A soil perc test is required before any septic system permit is issued in Olathe or unincorporated Johnson County, no exceptions.
High-water-table zones in the eastern county corridor commonly require aerobic treatment units (ATUs) rather than conventional systems.
Call or contact Koch Construction & Remodeling now for a free estimate and quick, reliable service.
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