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How much does a residential addition cost in Baton Rouge (70809)?

Typical residential addition in Baton Rouge (70809)
≈ $80,000
low confidencefrom 50 filings
≈ $41,300median ≈ $80,000≈ $200,000
A reference range from comparable filed projects in public records — not a quote.
Honesty is the point. We show the full range and the sample size — a reference, never a single promised number.
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Residential addition projects filed in Baton Rouge (70809) typically run about $80,000, with most between $41,300 and $200,000, based on 50 filings (Baton Rouge public records, DataSF).

These are comparable filed projects in Baton Rouge (70809) — a typical reference range, not a quote. Your project can land anywhere in the spread depending on scope, materials, and access.

Where the money goes

A typical share of a residential addition budget — an illustrative industry breakdown, not measured for this project.

What moves the price

Materials & finishes
The biggest swing — basic vs premium
Labor & crew
Local rates and how many trades are involved
Scope found on-site
Older homes surface surprises once walls open
Filing & timeline
Reviews and inspections add weeks, not just cost

Common questions

What's the typical range for a residential addition in Baton Rouge (70809)?

Most residential addition projects in Baton Rouge (70809) run $41,300 to $200,000, with a median around $80,000, based on 50 filings of comparable filed work (Baton Rouge public records, DataSF).

How does Baton Rouge (70809) compare to citywide residential addition costs?

the 70809 median ($80,000) runs about 45% above the Baton Rouge citywide median ($55,000) for residential addition projects.

How recent is this data?

These figures reflect comparable residential addition projects filed in Baton Rouge public records (DataSF), compiled as of 2026-06-03. They refresh as new filings are published.

What affects the cost of a residential addition?

Scope, materials, finishes, the age and condition of the home, and site access. The spread above ($41,300–$200,000) reflects that range — your project can land anywhere in it.

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