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Self Storage Facility Cost Calculator
Estimate ground-up development costs by unit mix, building type, and market. Pre-load your numbers into DealForge to model financing and returns.
Location
State drives the regional cost multiplier. City is passed to DealForge as the deal name.
Building Type
Unit Mix
Enter the number of units per size tier. Leave a row at 0 to exclude it. Rent defaults are national midpoints — adjust for your market.
Typical: $40–$80/mo
Typical: $55–$110/mo
Typical: $85–$165/mo
Typical: $110–$215/mo
Typical: $135–$255/mo
Typical: $175–$360/mo
Vacancy & Land
Typical stabilized: 8–12%
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What Does It Cost to Build a Self Storage Facility?
Self storage development costs break down into two major buckets: the building itself and site work. The building (structure, slab, basic electrical) accounts for 55–65% of total hard costs. Site work — grading, paving, office build-out, utilities, fencing — accounts for the remainder.
| Building Type | $/Gross SF | $/Rentable SF (all-in) |
|---|---|---|
| Single-story non-climate | $38–$57 | $65–$95 |
| Single-story climate-controlled | $54–$76 | $90–$130 |
| Multi-story climate-controlled | $72–$100 | $115–$165 |
Ranges based on national average. Apply a 1.15–1.35× multiplier for coastal/Northeast markets, 0.85–0.95× for Plains/Gulf Coast markets.
Site cost line items
Site costs are often underestimated in early proformas. The calculator includes estimates for each component, but verify permit fees and utility extension costs with your local jurisdiction before committing to a proforma.
Frequently Asked Questions
How much does it cost to build a self storage facility?
A self storage facility typically costs $45–$75 per rentable square foot for a single-story non-climate facility, or $85–$130 per rentable square foot for climate-controlled. A 40,000 rentable sqft facility (a common benchmark) generally runs $1.8M–$3M all-in depending on market, building type, and site conditions.
What is the difference in cost between climate-controlled and non-climate storage?
Climate-controlled self storage costs roughly 35–50% more per square foot to build than non-climate. The HVAC system, insulation upgrades, and tighter envelope construction are the main cost drivers. Climate units also command 20–40% higher rents in most markets, which can offset the construction premium.
How many units can I fit per acre for self storage?
A single-story facility typically yields 35,000–45,000 rentable square feet per acre of land (after accounting for drive aisles, parking, setbacks, and office). Multi-story development can yield 80,000–120,000 rentable sqft per acre. Lot shape and local setback requirements vary significantly.
What is a good unit mix for a self storage facility?
A balanced mix for general consumer storage: 20–25% small units (5×5, 5×10), 40–50% medium (10×10, 10×15), 25–30% large (10×20, 10×30). Markets near apartment-heavy areas benefit from more small units. Markets near suburban homes with garage overflows tend to need more 10×20 and 10×30. Talk to a local broker before finalizing your mix.
How do I estimate self storage rent for my area?
The most reliable method is to look up existing facilities in your target market on Google Maps and check their rates directly or via SpareFoot. Non-climate 10×10 units typically range from $85–$200/month depending on market. Climate-controlled 10×10 units run $110–$250/month. The calculator shows national benchmark ranges for each unit size — adjust based on your local competition.
What is a typical vacancy rate for self storage?
Stabilized self storage facilities typically run 8–12% economic vacancy in most markets. New facilities often underwrite to higher vacancy (12–15%) in the first 2 years of lease-up before reaching stabilization. The national average stabilized occupancy for storage is around 91–92%.