The right early number is a range with clearly defined inclusions—not a single cost per square foot detached from condition, plans and bids.
Written by Ryan Roberts
Ryan Roberts is a New Orleans real estate agent focused on shotgun homes and historic residential property.
Planning ranges by renovation scope
The ranges below synthesize broad national and current local commercial benchmarks with a documented high-complexity New Orleans project. They are intentionally wide because source methodologies, contractor capacity, finish level and concealed conditions vary. A small shotgun can also carry a higher per-square-foot number because kitchens, bathrooms, service upgrades and mobilization are fixed costs spread across less area.
| Scope | Planning allowance | Typically includes | Usually priced separately or unresolved |
|---|---|---|---|
| Cosmetic | $20–$60/sq ft | Paint, floor refinishing, fixtures and limited finish repair | Concealed systems, structural repair, major layout change |
| Systems / partial reconstruction | $60–$150/sq ft | Selected electrical, plumbing, HVAC, roof or room reconstruction | Whole-house structural work, elevation, substantial additions |
| Full gut | $150–$300+/sq ft | Coordinated framing access, systems, envelope and interior rebuild | Acquisition, financing, temporary housing; major site/elevation work unless scoped |
Scope overlap is normal. A project with cosmetic rooms and a complete foundation repair does not belong neatly in one row; price each major work package instead of forcing a blended label.
Use the shotgun-house renovation cost estimator to apply these same three planning bands to a verified square-footage figure. The calculator and this article use one shared range model; neither replaces a property-specific scope and comparable written bids. The complete shotgun remodel guide explains how to document conditions, coordinate layout and systems, confirm review, and issue that scope.
Worked examples for a 900-square-foot shotgun
At 900 square feet, the arithmetic produces $18,000–$54,000 for the cosmetic allowance, $54,000–$135,000 for systems/partial reconstruction and $135,000–$270,000+ for a full gut. These totals simply multiply the published ranges; they do not estimate a specific house.
If inspection finds foundation movement, widespread termite damage, a failed roof structure or unpermitted work, add separate investigated scopes. Use the dedicated guides to define foundation repair and Formosan termite risk before pricing either condition.
If the plan includes a camelback or rear addition, price new area and tie-in work separately rather than applying an interior renovation rate to it. The camelback addition section in the remodel guide explains the feasibility, permit and bid sequence; the bathroom-addition guide does the same for added wet space.
Verify the property’s area first with the shotgun dimensions guide. Multiplying the wrong square-footage number only creates a more precise-looking mistake.
Why shotgun renovation costs move so much
The inspection scope for an older house helps turn unknown conditions into work packages. The record of past permitted work can reveal past projects that should be reconciled before a contractor prices new work.
- —Foundation, sill, joist and termite conditions hidden below floors or behind finishes.
- —Electrical, plumbing and HVAC scope, including service capacity and distribution routes.
- —Historic windows, doors, weatherboards and decorative woodwork requiring repair rather than standard replacement.
- —Tight side access, material staging and occupied-neighbor constraints on narrow lots.
- —Kitchen and bathroom count relative to a small total area.
- —Design, engineering, permits, historic review and discovery after opening walls.
Permits, professional fees and contingency
The City of New Orleans permit-fee estimator currently describes a base building-permit calculation plus plan-review charges and a preservation-district surcharge. Fee pages and project classifications can change, so run the current estimator for the actual declared work rather than copying a figure from this article.
Architectural, engineering, survey, testing and consulting fees should appear as explicit budget lines. So should temporary utilities, protection, debris, appliances, landscaping, financing carry and temporary accommodation where applicable.
Contingency belongs to unresolved risk after reasonable investigation. A useful project budget states what it covers and who controls it; it is not an excuse to skip opening probes, system testing or written allowances. The HDLC sign-off process helps define review before procurement.
How to replace the range with an accurate budget
If you are evaluating a purchase rather than an owned property, keep the budget range conditional until access and due diligence support it. The buying guide connects renovation feasibility to the rest of the transaction.
- —Document existing conditions with survey, measured drawings, inspection and targeted specialist reports.
- —Write one scope that names quantities, assemblies, finish allowances and exclusions.
- —Confirm zoning, permit and historic-review paths before bidding assumptions harden.
- —Request comparable written bids against the same documents and reconcile exclusions line by line.
- —Verify contractor credentials with the Louisiana licensing board and keep contingency separate from base scope.
Frequently asked questions about shotgun house renovation costs
How much does a full gut cost?
Use $150–$300+ per square foot only as an early planning allowance. Structure, systems, finishes, access and soft costs determine the property-specific bid.
Why can a small shotgun cost more per square foot?
Fixed costs such as a kitchen, bathroom, service upgrades, mobilization and design are distributed over fewer square feet.
Are permits included?
Not automatically. This article separates permit and professional costs so the budget can reflect current fees and the actual review path.
How much contingency should I carry?
There is no universal percentage. Set it from the quality of investigation, remaining unknowns, contract structure and risk tolerance with your project team.
How do I get an accurate estimate?
Create property-specific existing-condition documents and one defined scope, then obtain and normalize written bids from properly credentialed contractors.
Key takeaways
- 01Use broad ranges only for early feasibility, never as a bid.
- 02Cosmetic, systems and full-gut labels need explicit inclusions.
- 03Small shotguns can carry high per-square-foot fixed costs.
- 04Inspection, one bid scope and normalized written bids produce the useful number.
- 05Price additions, elevation and major foundation work separately.
References
- 01Building Permit Fee Estimator
City of New Orleans
- 02Structural Renovation Permit
City of New Orleans
- 03Design Guidelines
New Orleans HDLC
- 04Consumer resources
Louisiana State Licensing Board for Contractors
- 05
- 06New Orleans remodeling benchmark
RenoVetted
- 07Picheloup Place renovation
Studio BKA
My methodology
Open each item to see the scope, definitions and limits behind the article.
Research date+
Municipal, licensing, national benchmark, local commercial benchmark and project-example sources were reviewed on August 31, 2026.
Range method+
The published figures are deliberately broad editorial planning allowances calibrated against sources with different methods. They are not a statistical market average, quote or appraisal.
What is excluded+
Unless a project scope states otherwise, acquisition, financing, temporary accommodation, major additions, house elevation and extraordinary site or foundation work are separate.
Professional scope+
Only property-specific investigation, documents and comparable contractor bids can establish a working construction budget.