ROI Calculator — Smart Building Products

Smart Building Products — Developer & Landlord Tool

All-in-One Faucet ROI Calculator

Model the real financial return of upgrading to a filtered water faucet — across retention, occupancy, and rent premium. All inputs are adjustable to your portfolio.

Property Inputs

Number of Units

Avg Monthly Rent per unit ($)

Annual Rent Growth %

All-in-One Faucet Cost per unit ($) — auto-set by volume

Standard Faucet Cost per unit ($)

Filter Replacement Cost per unit ($)

Filter Life months (15 = product spec)

Cost per Turnover per unit ($) — owner/LL benefit

Marketing Cost per Vacancy per unit ($)

Resident Cost Avoidance per unit/year ($) — tenant benefit

Amenity Uplift — Your Upcharge Adjust to Your Market

Monthly Rent Premium per Unit $15/mo

Credit only the incremental upcharge your product justifies — not base rent. Typical range: $10–$50/mo per unit.

Retention Improvement 3.0%

% of units retained that would otherwise turn. Value = cost per turnover. Industry benchmark: 3–4% conservative.

Occupancy Improvement 1.0%

% of total units newly occupied due to amenity. Value = 12 months of full rent per filled unit. Industry benchmark: 1–2% conservative.

3-Year ROI Summary

Year 1

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Annual Cost

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Year 2

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Annual Cost

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Year 3

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Annual Cost

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3-Year Total

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Total Cost

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Year 1 Benefits

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Break-Even

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months (Year 1)

3-Yr Net Benefit

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Incremental CapEx

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vs standard faucet

Year 1 Benefit Sources

Year 1 — Full Benefit & Cost Breakdown

Owner / Landlord Benefits
Retention Savings (move-outs avoided × cost per turn)	—	OWNER
Occupancy Revenue Gain (units × occ lift % × 12 mo rent)	—	OWNER
Marketing Cost Savings (move-outs avoided × mkt cost per vacancy)	—	OWNER
Annual Rent Premium (upcharge × 12 mo × units)	—	OWNER
Total Owner Benefits	—
Resident / Tenant Benefits
Resident Cost Avoidance (per unit avoidance × units — bottled water, filters, etc.)	—	TENANT
Total All Benefits (Owner + Tenant)	—
Costs
Incremental CapEx (faucet upgrade delta × units — Year 1 only)	—
Annual Filter Cost (filter cost × units ÷ filter life × 12)	—
Total Annual Costs	—

Owner / LL View

Net Annual Benefit

—

Break-Even

—

months

ROI

—

net ÷ cost

Owner + Tenant View

Net Annual Benefit

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Break-Even

—

months

ROI

—

net ÷ cost

Methodology: Retention Savings and Marketing Savings are owner/landlord benefits based on move-outs avoided (units × retention improvement %). Resident Cost Avoidance is a separate tenant benefit reflecting savings on bottled water, pitcher filters, and alternative filtration — not the same formula as retention. Year 2+ applies retention + occupancy only. Filter cost = filter price × units ÷ filter life (months) × 12. Break-even = Incremental CapEx ÷ Net Annual Benefit × 12.

Unit Economics

Move-outs avoided (units × retention improvement %)	—
Vacant units filled (units × occupancy lift %)	—
Value per retained unit (cost per turn input)	—
Value per filled unit (12× monthly rent)	—
Incremental faucet cost per unit vs. standard	—
Annual filter cost per unit (prorated over filter life)	—
Resident cost avoidance per unit/year	—

Occupancy Rate Inputs New

Current Occupancy Rate %

Expected Occupancy w/ Amenity %

Monthly Rent Premium per Unit $15/mo

Occupancy Impact — Key Metrics

Currently Vacant

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units

New Units Filled

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from amenity lift

Occupancy Rev Gain

—

filled units × 12 mo

Upcharge Revenue

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all units × 12 mo

Total portfolio units	—
Occupancy lift (newly filled units)	—
Annual rent revenue per filled unit	—
Annual occupancy revenue gain	—
Annual upcharge revenue (all units)	—
Total Annual Revenue Impact	—
Year 1 Incremental CapEx (product cost)	—
Occupancy Tab ROI	—

What Drives Occupancy Lift

Amenity Differentiation

A commercial-grade filtered water faucet is a tangible, marketable amenity that sets units apart during showings. In competitive rental markets, unique in-unit wellness features accelerate lease decisions.

Reduced Time-to-Lease

Properties with wellness amenities report faster lease-up. Each vacant day is a lost rent day. A 1–2% occupancy lift compounds significantly across a portfolio.

Retention Compounding

Occupancy gain isn't just new leases — it's fewer move-outs. Retention improvements stack on top of occupancy gains, creating a compounding NOI effect year over year.

Resident Health & Wellness

Certified filtration reduces PFAS, lead, and microplastics — a genuine resident value-add that builds long-term loyalty and positions the property above commodity competitors.

Conservative modeling: Occupancy gain is valued at full annual rent per newly filled unit only. This excludes avoided vacancy prep costs, leasing commissions, and marketing spend — all real value not reflected here.