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Live ROI Calculator

What does your lot actually earn?

Move the sliders. Your numbers update in real time — no email required.

Lot / Property Value

Current assessed or purchase price

$280K
$100K$800K

Construction Budget

All-in build cost estimate

$420K
$150K$900K

Target Rent Per Unit

Estimated monthly market rent

$2,400/mo
$1,200/mo$5,000/mo
Units
units

No credit card. Free 30-minute consultation.

Your Projection

2-Unit Duplex Analysis

Total investment: $700,000

Est. Monthly Cash Flow

-$816

after debt service & expenses

Cap Rate

5.1%

unleveraged return

Equity at CO

$-51K

appraised vs. cost

Projected Appraised Value

at 5.5% market cap rate

$649K

5-Year Wealth Accumulation

Projection assumes 4.5% annual appreciation, 6.5% financing, 38% expense ratio. Not financial advice — consult your advisor.

Not ready to talk? Take the numbers with you.

142 doors delivered$38M in appraised value createdAverage 22% equity lift at completion100% certificate of occupancy rateDuplex · Triplex · FourplexTX · TN · AZ · FL · CO142 doors delivered$38M in appraised value createdAverage 22% equity lift at completion100% certificate of occupancy rateDuplex · Triplex · FourplexTX · TN · AZ · FL · CO
Completed Projects

Real deals. Real numbers.

Every project below started as a single-family lot. These are the actual financials at certificate of occupancy — no projections, no adjustments.

Newly constructed modern duplex with dark siding and white trim on a tree-lined street in East Nashville
Completed Q3 2024

East Nashville, TN

The Hargrove Duplex

Duplex2 units
Purchase + Lot$310,000
All-In Build Cost$395,000
Total Investment$705,000
Appraised at CO$890,000
Equity Created$185,000
Monthly NOI$4,640
Cap Rate7.9%

Actual figures from completed project. Duplex handled zoning analysis, permitting, construction management, and certificate of occupancy.

142 doors

Delivered since 2019

$38M

In appraised value created

22% avg

Equity lift at completion

100%

Certificate of occupancy rate

Triplex3 units
Purchase + Lot$420,000
All-In Build Cost$590,000
Total Investment$1,010,000
Appraised at CO$1,310,000
Equity Created$300,000
Monthly NOI$7,120
Cap Rate8.5%

Actual figures from completed project. Duplex handled zoning analysis, permitting, construction management, and certificate of occupancy.

Three-unit contemporary residential building with stucco exterior, desert landscaping, and covered parking in Scottsdale
Completed Q1 2025

Scottsdale, AZ

The Bellmore Triplex

142 doors

Delivered since 2019

$38M

In appraised value created

22% avg

Equity lift at completion

100%

Certificate of occupancy rate

Modern four-unit residential investment property with clean architectural lines, private entries, and professional landscaping in Austin
Completed Q4 2025

Austin, TX

The Aldridge Fourplex

Fourplex4 units
Purchase + Lot$550,000
All-In Build Cost$820,000
Total Investment$1,370,000
Appraised at CO$1,780,000
Equity Created$410,000
Monthly NOI$9,850
Cap Rate8.6%

Actual figures from completed project. Duplex handled zoning analysis, permitting, construction management, and certificate of occupancy.

How It Works

From lot to lease in one engagement.

You own the asset. We own the execution. One firm, one contract, zero coordination overhead.

01

Zoning & Feasibility

Week 1–2

We pull your parcel data, run setback calculations, and confirm ADU/duplex eligibility under current municipal code. You get a written feasibility memo — not a verbal guess.

02

Design & Permitting

Week 3–10

Our licensed architects produce permit-ready drawings. We manage the full submission and respond to city comments — you don't touch a single form.

03

Construction

Month 3–9

Our vetted GC network builds to spec. Weekly photo updates, a live project dashboard, and a dedicated project manager keep you informed without pulling you into the weeds.

04

Certificate of Occupancy

Final inspection

We handle final inspections, punch-list items, and CO issuance. You receive keys and a complete as-built package ready for your lender or property manager.

05

Lease-Up & Handoff

Week of CO

Optional: our property management partners can have both units leased before CO. Day one, your investment is producing income.

Why One Firm

Most developers hand off at permit. We stay through the final inspection.

Single contract — no GC coordination, no architect disputes

Fixed-fee construction pricing with contingency reserve built in

In-house zoning counsel in TX, TN, AZ, FL, and CO

100% CO rate across 142 delivered doors

Average 14% under appraisal at completion

142

Doors

100%

CO Rate

9 mo

Avg Timeline

Client Outcomes

The calculator gave them a number.
The project delivered it.

"I had $280K sitting in equity doing nothing. Duplex walked me through the feasibility in week one — by month nine I had two rental units appraised $190K above what I put in."

Dr. Marcus Whitfield

Periodontist, Nashville, TN

+$190K equity at CO

"My financial advisor kept saying 'diversify into real estate' but couldn't tell me how. Duplex gave me a specific project, a fixed fee, and a timeline. That's what I needed."

Jennifer Calloway

VP of Finance, Austin, TX

8.3% cap rate, fourplex

"I owned one rental for six years. Duplex helped me go from one door to four in a single project. The cash flow covers my mortgage and then some."

Roberto Sandoval

Small landlord, Scottsdale, AZ

1 → 4 doors in 11 months
Licensed General Contractor
Registered in TX · TN · AZ · FL · CO
NAHB Member
In-House Zoning Counsel
Ready to move

The deal is already penciled.

You've run the numbers. You've seen what other lots have returned. The only question is whether you lock in your lot analysis today or next quarter.