Mobile Home Park Underwriting Calculator

    Convert mobile home park site count, monthly lot rent, and occupancy into revenue, NOI, value per site, maximum loan proceeds, and equity.

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    Estimate stabilized revenue and NOI from unit count, rent, and occupancy, then size maximum loan proceeds using the lower of DSCR and loan to value constraints.

    Property Operations

    $
    %
    $
    %

    Acquisition and Value

    $
    $
    %
    %

    Loan Assumptions

    %
    years
    x

    Occupied Sites

    95.0

    Gross Potential Rent

    $660,000.00

    Effective Rental Revenue

    $627,000.00

    Total Property Revenue

    $651,000.00

    Operating Expenses

    $227,850.00

    Stabilized NOI

    $423,150.00

    NOI per Site

    $4,231.50

    Indicated Property Value

    $6,510,000.00

    Per Unit Value and Loan Sizing

    Purchase Price per Site

    $65,000.00

    Indicated Value per Site

    $65,100.00

    Maximum by DSCR

    $3,670,544.50

    Maximum by Loan to Value

    $4,550,000.00

    Maximum Loan

    $3,670,544.50

    Maximum Loan per Site

    $36,705.44

    Estimated Equity Including Improvements

    $3,129,455.50

    Binding Constraint

    DSCR

    Annual Debt Service

    $325,500.00

    Resulting DSCR

    1.30x

    Loan to Total Cost

    53.98%

    Total Project Cost

    $6,800,000.00

    This is a stabilized planning estimate. Lenders may adjust occupancy, rents, concessions, management fees, replacement reserves, utilities, taxes, insurance, payroll, repairs, and other operating expenses. The capitalization rate estimate does not replace an appraisal.

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    How Mobile Home Park Per Site Underwriting Works

    The calculator multiplies total sites by average monthly lot rent to estimate gross potential rent, then applies economic occupancy and adds other property revenue. The operating expense ratio is deducted to estimate stabilized net operating income.

    Gross Potential Rent = Sites × Monthly Lot Rent × 12
    Effective Rental Revenue = Gross Potential Rent × Economic Occupancy
    Stabilized NOI = Total Revenue × (1 - Operating Expense Ratio)

    Mobile Home Park Value and Loan Sizing

    Indicated value is calculated from stabilized NOI and the selected capitalization rate. Maximum loan proceeds use the lower of the DSCR limit and loan to value limit. Per site results support comparisons with sales and appraisals, but owned homes, vacant sites, utility systems, roads, and deferred maintenance may require separate adjustments.

    Mobile Home Park Underwriting Worked Example

    An 80 site park averaging $650 in monthly lot rent at 95 percent economic occupancy produces $592,800 of effective lot rent. Adding $24,000 of annual other revenue and applying a 40 percent operating expense ratio produces $370,080 of stabilized NOI, or $4,626 per site before loan sizing.

    Choosing Park Inputs and Reading the Result

    Enter lot rent separately from income earned on park owned homes, and use economic occupancy that reflects nonpaying and vacant sites. Include utility reimbursements and other revenue only when collections are documented. Review the result alongside utility ownership, road condition, infill costs, tenant owned versus park owned homes, and any deferred maintenance that can affect value and lender proceeds.

    Frequently Asked Questions

    No. Lot rent and income from park owned homes have different expense, maintenance, and collateral characteristics. Model them separately in detailed underwriting and use this calculator primarily for recurring site revenue.

    Documented utility reimbursements can be included as other revenue, while the corresponding utility expense should remain in operating costs. Billing systems, collection history, and local rules can affect lender treatment.

    Owned homes, vacant expansion sites, private utilities, road condition, location, age, and deferred maintenance can create large differences between parks with the same number of sites.