Room Addition Cost Calculator - Simpsonville & Upstate SC

C. Scott Burch

Owner & Lead Contractor

35+ years | 23 room additions completed

Last updated

Apr 17, 2026

A+
BBB Rating
Since 2014
5.0
Google Rating
Verified Reviews
35+
Years Experience
Est. 1995
Licensed & Insured
Fully Certified

Home Addition Cost Calculator

Plan your home addition project with competitive local pricing. From simple room additions to luxury master suites with transparent cost breakdowns for all factors.

Competitive local pricing for Simpsonville, Fountain Inn, Gray Court & Greenville County with transparent 22.5% overhead & profit.

Pricing Data Updated: April 2026 — Reflects current Upstate SC market rates, material costs, and labor pricing.

Budget Planning Tool

This calculator uses local market pricing with transparent 22.5% overhead and profit. Final pricing depends on actual site conditions, material selections, permit requirements, and scope verification. Use as a planning range, then schedule a site visit for a detailed written estimate.

Choose Your Project Type

Size & Location

Project Factors

Optional Add-Ons

Your Estimate

Selected Project
Basic Finish Addition
250 SF
Fountain Inn & Surrounding Area
Budget-Conscious
$49,968
Conservative estimate (×0.93)
Most Common
$53,729
Typical project outcome
Custom/High-End
$60,176
Premium selections (×1.12)
Direct Cost (250 SF × $172/SF)$43,000
Location Factor (1.02×)applied
Material Factor (1.00×)applied
Complexity (1.00×)applied
Site Conditions (1.00×)applied
Adjusted Direct Cost$43,860
Subtotal$43,860
Overhead & Profit (22.5%)+$9,869
Final Investment$53,729

This is a planning estimate only. Actual pricing depends on site inspection, material selections, structural requirements, and scope verification. Schedule a free consultation for an accurate quote.

Proudly serving Upstate SC since 1995