Custom Home Build Custom home design and construction $350,000 - $2,200,000 Common cost factors Home size and complexity: Larger footprints, complex architecture, and structural features increase materials and labor.Finish level and specifications: Premium cabinetry, windows, HVAC, and smart systems raise PSF costs significantly.Site conditions: Slopes, soil issues, utilities distance, and access affect excavation and foundation costs.Region and labor market: Local wage rates and material logistics drive PSF variability across states and metros. Common price components Sitework & Foundation - $40,000 - $180,000Clearing, grading, utilities, excavation, footings, slab/basement, drainage.Framing & Shell - $90,000 - $380,000Framing lumber/labor, sheathing, roofing, windows, exterior doors, weatherproofing.Mechanical, Electrical, Plumbing - $80,000 - $260,000HVAC systems and ducting, electrical rough/finish, plumbing rough/finish.Interior Finishes - $90,000 - $420,000Insulation, drywall, trim, cabinets, countertops, flooring, tile, paint, fixtures.Exterior & Landscaping - $20,000 - $120,000Siding, masonry, decks/porches, drives/walks, basic landscaping.
Home Addition Construction Home addition construction $25,000 - $350,000 Common cost factors Square footage and complexity: Larger footprints, multi-story, and structural tie-ins increase materials and labor.Foundation/structure: New foundations or significant structural work add major cost; building up can run higher per square foot.Level of finishes: Premium windows, doors, cabinetry, flooring, and tile elevate costs.MEP scope: HVAC extension, new electrical circuits, plumbing rough-ins/fixtures add time and materials. Common price components Design, permitting, and engineering - $5,000 - $30,000Architectural drawings, structural calcs, permit fees, inspections.Site work and foundation - $8,000 - $60,000Demo, excavation, footings, slab or crawlspace/basement work.Framing and exterior shell - $20,000 - $90,000Framing, sheathing, roofing tie-in, windows, exterior doors, siding.MEP rough-in - $10,000 - $50,000Electrical, plumbing, HVAC distribution or equipment changes.Insulation and drywall - $6,000 - $20,000Thermal/sound insulation, hang/tape/finish.
Laneway Home Construction Laneway home design and construction $180,000 - $750,000 Common cost factors Size and design complexity: Larger footprints and custom designs increase materials and labor.Site conditions and services: Utility upgrades, access constraints, and foundation needs add cost.Finish level and materials: Higher-end interiors, exteriors, and energy features raise budgets.Permits, fees, and soft costs: Municipal fees, engineering, and design can be significant. Common price components Design, engineering, permits - $20,000 - $80,000Architectural plans, structural/MEP, permit and development fees.Site prep and foundation - $30,000 - $90,000Demolition, grading, utilities trenching, foundation/slab.Structure and exterior - $80,000 - $220,000Framing, roofing, windows/doors, siding, insulation, exterior finishes.Interior systems and finishes - $70,000 - $220,000Plumbing, electrical, HVAC, drywall, flooring, cabinetry, fixtures.Project management and contingencies - $20,000 - $80,000GC overhead/profit, scheduling, unforeseen conditions.
Carriage House Construction Carriage house construction $120,000 - $550,000 Common cost factors Size and layout: Square footage, number of stories, garage plus dwelling area, and interior build-out level.Site conditions: Foundation type, grading, utilities runs, and access constraints.Finish level: Kitchen/bath quality, windows/doors, exterior materials, and energy upgrades.Design/permits/fees: Architectural design, engineering, permits, surveys, and impact fees. Common price components Structure & Envelope - $70,000 - $180,000Framing, roofing, siding, windows/doors, and garage structure.Interior Build-Out - $30,000 - $140,000Insulation, drywall, flooring, cabinetry, fixtures, paint.MEP Systems - $15,000 - $60,000Electrical, plumbing, HVAC equipment and distribution.Sitework & Foundation - $10,000 - $40,000Slab/footings, grading, utility trenching, driveway tie-ins.Design, Permits & Fees - $5,000 - $30,000Architect/engineer, surveys, permits, impact/utility fees.
Major Home Expansion Major addition or expansion construction $25,000 - $750,000 Common cost factors Square footage and configuration: Larger footprints and building up vs. out change structural needs and per‑sq‑ft cost.Structural complexity: Foundation work, load-bearing changes, and tie-ins to existing structure increase labor and engineering.Mechanical, electrical, plumbing: New bathrooms/kitchens and service upgrades add significant cost.Finish level: Windows, exterior cladding, roofing, cabinetry, and fixtures drive wide cost swings. Common price components Design, engineering, and permits - $8,000 - $45,000Architectural design, structural engineering, energy calcs, and permit fees.Sitework and foundation - $20,000 - $120,000Excavation, footings, slabs, drainage, and tie-ins.Framing, exterior shell, and roofing - $50,000 - $220,000Structural framing, sheathing, windows/doors, siding, and roof integration.MEP rough-in and upgrades - $30,000 - $120,000Electrical, plumbing, HVAC distribution, and potential service upgrades.Interiors and finishes - $30,000 - $150,000Insulation, drywall, flooring, millwork, cabinets, paint, tile, and fixtures.