Pricing
Typical Underground Home Construction Prices
Guide prices for the jobs we do most. Every job is different, so we confirm a written price before any work starts.
Pricing Estimates
Prices by service
Underground Home Construction
Job Typical cost Storm-rated underground home shell $260-$520 per sq ft Small finished underground home $300,000-$550,000 Full finished subterranean living space $500,000-$900,000 Underground shelter or safe room $8,000-$60,000 Underground Shelter Installation
Job Typical cost Basic under-floor safe cellar $8,000-$15,000 Survival bunker with filtration $25,000-$60,000 Small finished underground shelter $120,000-$260,000 Large finished underground shelter $260,000-$520,000 Site Preparation
Job Typical cost Open-cut trenching $15-$30 per linear ft Excavation and soil handling $10,000-$30,000 Unlined excavation $50,000-$120,000 Off-site disposal and haul-off $10,000-$80,000 Earth-Sheltered Home Design
Job Typical cost Basic shell plan $30-$33 per sq ft Basic earth-sheltered home design $115-$150 per sq ft Custom finished home design $210-$260 per sq ft Earth-Sheltered Engineering
Job Typical cost Structural enclosure engineering $150,000-$420,000 Complex underground structure engineering $260,000-$520,000 Full subterranean structure engineering $500,000-$900,000 Earth-Sheltered Construction Consulting
Job Typical cost Early project consulting $180-$320 Feasibility review $500-$1,500 Project planning support $1,500-$5,000 Earth-Sheltered Permitting
Job Typical cost Permit application support $500-$2,000 Full permitting package $2,000-$7,500 Complex underground permit set $7,500-$15,000 Underground Utility Installation
Job Typical cost Trench-only utility run $8-$15 per linear ft Standard underground utility installation $15-$40 per linear ft Underground power run $8,000-$28,000 Sewer line installation in Dallas $652-$3,553 Earth-Sheltered Waterproofing
Job Typical cost Waterproofing and drainage $20,000-$60,000 Heavy-duty waterproofing system $60,000-$150,000 Basic shell waterproofing $120,000-$210,000
Get a Written Site Review for Your Lot
Every enquiry receives a written review of lot slope, drainage, clay-soil movement, and permitting scope before it reaches a builder.