1st Advantage MortgageNew Castle is a DE market where the rent-to-payment ratio decides the loan. Median rent is $1,739, median home value is $285,100 and 37% of households rent.
New Castle rents, values and tenants
Two Census medians frame the New Castle rental market: gross rent of $1,739 a month, which is , and a home value of $285,100, which is about 19% below the Delaware median of $352,000.
| Indicator | Delaware | New Castle | Difference |
|---|---|---|---|
| Tax as a share of home value | 0.50% | 0.52% | +3% |
| Annual property tax bill, median | $1,768 | $1,481 | -16% |
| Household income, median | $84,954 | $89,205 | +5% |
| Typical owner-occupied value | $352,000 | $285,100 | -19% |
| Persons per household | 2.48 | 2.01 | |
| Share of homes detached | 59.1% | 37.1% | -37% |
| Degree holders, age 25+ | 35.8% | 33.8% | -6% |
| Workers on their own account | 8.6% | 9.0% | +5% |
| Renters paying 30%+ of income | 49.6% | 36.2% | -27% |
| Units sitting vacant | 13.4% | 3.6% | -73% |
| Typical construction year | 1987 | 1959 | |
| Households that rent | 27.0% | 36.6% | +35% |
| Residents (Census estimate) | 1,021,191 | 5,579 |
Renters make up 36.6% of households in New Castle (well above the Delaware median of 27%), so rental demand is real but not overwhelming. Median household income is $89,205, close to the Delaware median of $84,954, and 36% of renter households pay 30 percent or more of income on rent.
New Castle is a small place, and Census estimates for small populations carry wide margins of error, so we leave out rent-derived ratios here and rely on local quotes and comparables.
Housing mix and age in New Castle
The housing mix in New Castle is blended: 37% detached houses, 7% in two to four unit buildings, 14% in buildings of five to 19 units and 0% manufactured homes. Housing here skews old (median year built 1959), so condition and the age of major systems matter as much as the rent.
The Census counts 4% of housing units in New Castle as vacant.
Investor takeaways for New Castle
Because the housing is older (median built 1959), repair reserves and insurance on aging roofs and wiring deserve a bigger line in your budget than the lender's ratio will show. Renters are 37% of households, which gives investors a real tenant base to market to.
Taxes, insurance and hazards in New Castle
In New Castle the median tax bill for an owner-occupied home is $1,481, or about 0.52% of value (Delaware overall: 0.50%). That bill is about 16% below the Delaware median of $1,768. Set beside the median rent, the tax alone consumes about 7% of annual rent.
County-level hazard data from FEMA (National Risk Index 1.20) shows New Castle County with relatively high overall risk and winter weather (very high), riverine flooding (relatively high) and cold waves (relatively high) at the top of the list.
| Hazard in New Castle County, FEMA index | Level |
|---|---|
| Ice storms exposure | Relatively High |
| Cold waves exposure | Relatively High |
| Riverine flooding exposure | Relatively High |
| Winter weather exposure | Very High |
| Social vulnerability score | Relatively Low |
| Annualized loss estimate | Relatively High |
| Composite risk | Relatively High |
Insurance belongs in the ratio from day one, so get a landlord quote for the New Castle address and ask about roof age, wind or hail deductibles and flood cover.
The ratio in New Castle dollars
Take the median rent ($1,739), subtract median taxes spread over twelve months ($123), and you have $1,616 of room at a 1.00 ratio. A lender asking for 1.25 cuts that to $1,268. Real quotes for the address decide the rest.
What DE law and New Castle require of landlords
Rental registration, inspection and nightly-stay rules differ by city, and we have not verified New Castle's from a municipal source. A short call to the city and New Castle County before you make an offer is cheap insurance. If you are weighing nightly income in New Castle, the state tax backdrop is this. Delaware's state short-term rental lodging tax applies to rentals of 31 consecutive nights or fewer under agreements entered into on or after January 1, 2025, and platforms that act as accommodations intermediaries collect and remit it.
Plan for a 20 day return window on any New Castle deposit once the tenant moves out. Rent regulation: The Residential Landlord-Tenant Code sets no limit on the amount of rent; it regulates the notice for increases.
New Castle next to nearby cities
Of the cities listed, Newark is the most expensive ($382,500 median value) and Elsmere the least ($225,800); New Castle sits at $285,100.
| Market | Renter share | Tax bill | Home value | Residents | Rent |
|---|---|---|---|---|---|
| Newark | 49% | $3,023 | $382,500 | 30,330 | $1,654 |
| Bear | 35% | $2,238 | $304,800 | 22,370 | $1,771 |
| Elsmere | 34% | $1,834 | $225,800 | 6,203 | $1,339 |
| Wilmington | 52% | $1,864 | $231,400 | 71,727 | $1,224 |
| New Castle | 37% | $1,481 | $285,100 | 5,579 |
Who rents in New Castle
Self-employment accounts for 9.0% of New Castle's workforce, so many local investors earn income that a standard payroll-based mortgage underwrites poorly. Three more data points: government workers are about 20% of employment, 34% of adults hold a bachelor's degree or higher and 11% of commuters travel 45 minutes or more.
Transportation links include interstate access via I-295. Easy highway and air access helps both tenant commutes and remote ownership.
Next steps for a New Castle purchase
Bring the New Castle numbers to a loan officer: the rent, the taxes, the insurance and your reserves. Apply online or ask for a quote, and use the calculator to preview the ratio.
More Delaware markets
- All Delaware DSCR loans
- DSCR loans in Wilmington, DE
- DSCR loans in Elsmere, DE
- DSCR loans in Bear, DE
- DSCR loans in Newark, DE
- Every market we cover
Sources
- Delaware security deposit statute (Del. Code tit. 25, § 5514(a)-(g), (i))
- Delaware Division of Revenue, short-term rental FAQs
- U.S. Census Bureau data for New Castle
- FEMA National Risk Index
- Background reading: New Castle, Delaware
Census figures are 2020 to 2024 ACS five-year estimates for New Castle and carry margins of error. The Delaware legal summaries are from the RedFlagLease dataset, licensed CC BY 4.0, with statute links. Facts were checked in October 2026, and rules change.
Pre-offer checklist
For a New Castle rental, request the current lease, the last tax bill and the insurance declarations page early, and confirm which utilities the tenant pays, because each one changes the monthly figure a lender compares with the rent.
DSCR loan availability varies by property and lender program and is not an offer to lend. See our disclosures.
Frequently asked questions
What rent do DSCR lenders use for a New Castle rental?
Underwriters take the lease if one exists and compare it with the appraisal's rent estimate; the lower figure often governs. New Castle median rent is $1,739.
What payment can a New Castle rent support?
Yes, the payment includes principal, interest, taxes, insurance and association dues. At the New Castle median rent of $1,739, a 1.25 ratio allows about $1,391 in total payment, of which roughly $123 a month goes to median taxes.
Are New Castle property taxes high for Delaware?
Typical owners pay $1,481, or 0.52% of home value, with Delaware overall at 0.50%. Do not assume the seller's bill carries over to you.
Is short-term rental income allowed for a New Castle DSCR loan?
Often, with conditions: legal use under city and association rules, documented income and an insurance policy that covers guests. New Castle owners should check all three first.
Are there deposit limits for New Castle rentals?
Under Del. Code tit. 25, § 5514(a)-(g), (i): The deposit is due back within 20 days of move-out. Check the statute and your lease before collecting.
What hazard risk does New Castle carry for investors?
The National Risk Index gives the county an overall relatively high rating. Use that as a prompt to get quotes, not as a verdict on one New Castle street.
Is an entity required for a DE DSCR loan?
Many New Castle investors do, though no rule forces it. The loan is secured by the property either way, and the lender will check who controls the company.