Construction Cost Estimation Reference Table

These ranges reflect national averages from RSMeans and NAHB data. Actual costs vary significantly by region, material selection, and site conditions. Use as a starting point for client conversations, not for final bids.

New Construction (Residential)

Scope	Low ($/sq ft)	Mid ($/sq ft)	High ($/sq ft)
Basic tract construction	$120	$160	$200
Mid-range custom	$175	$250	$325
High-end custom	$300	$425	$600+
Luxury / architect-designed	$500	$700	$1,000+

Kitchen Remodel

Scope	Cost Range
Minor refresh (paint, hardware, appliances)	$15,000 - $30,000
Mid-range (new cabinets, countertops, appliances)	$35,000 - $70,000
Full gut renovation	$75,000 - $150,000+

Bathroom

Scope	Cost Range
Cosmetic update	$5,000 - $15,000
Full remodel (fixtures, tile, vanity)	$20,000 - $45,000
Master bath addition	$40,000 - $100,000+

Additions

Type	Cost Range
Bedroom (approx. 200 sq ft)	$30,000 - $60,000
Family room	$40,000 - $80,000
Second story	$150,000 - $350,000
ADU / in-law suite	$100,000 - $300,000

Site Work and Utilities

Item	Cost Range
Excavation (per cubic yard)	$30 - $60
Foundation (slab, per sq ft)	$6 - $15
Driveway (per sq ft, concrete)	$8 - $18
Electrical service upgrade (200A)	$3,000 - $8,000
HVAC system (3 ton)	$6,000 - $15,000

Markup Considerations

RSMeans prices are material + labor without markup. Standard residential GC overhead and profit: 15-25% on top of direct costs. Commercial: 10-20%.

These figures are starting points. Always verify with local material quotes and subcontractor bids before presenting a price to a client.