Rental numbers for ZIP 29920 (Saint Helena Island, SC)
Negative cash flow at any interest rate with 25% down: the rent does not cover operating costs and principal.
- Gross yield
- 3.3%
- rent x 12 / price
- Est. cap rate
- 1.0%
- NOI / price
- Cash flow
- -$2,704/mo
- at 7.78%, 25% down
- Typical price
- $598,000
- Zillow ZHVI, Aug 2026
- HUD Fair Market Rent
- $1,640/mo
- HUD Fair Market Rent, 2 bedroom, FY2026
The pro forma
Typical home, default assumptions
| Operator | Line | Amount | Source |
|---|---|---|---|
| Gross rent | $19,680 | ||
| Vacancy | $984 | ||
| Management | $1,496 | ||
| Property tax | $2,878 | ||
| Insurance | $2,104 | ||
| Maintenance | $5,983 | ||
| Net operating income | $6,236 | ||
| Loan payments | $38,686 | ||
| Cash flow | -$32,450 |
| Operator | Line | Amount | Source |
|---|---|---|---|
| Typical price | $598,260 | ||
| Down payment (25%) | $149,565 | ||
| Loan | $448,695 | ||
| Rate | 7.78% | ||
| Monthly payment | $3,224 | ||
| Cash in | $167,513 | ||
| Cash-on-cash return | -19.4% | ||
| DSCR | 0.16 | ||
| Break-even rate | none |
Assumptions
Change them in the calculator- Down payment25%
- A common minimum for investment-property and DSCR loans.
- Interest rate7.78%
- Freddie Mac 30-year 7.03% (week of 2026-09-24) + 0.75 point investor premium.
- Loan term30 years
- Fixed, fully amortising.
- Closing costs3% of price
- Added to cash invested.
- Insurance$2,104 a year
- NAIC 2023 average homeowners (HO-3) premium for South Carolina, $1,753, x 1.2 for a landlord policy.
- Maintenance1% of price a year
- The 1% rule of thumb; older homes run higher.
- Vacancy5% of rent
- About 18 days empty a year.
- Management8% of collected rent
- A typical full-service fee; zero if you self-manage.
Trends
Five years to August 2026
- Price, 12 months
- +2.3%
- Rent, 12 months
- n/a
- no Zillow rent series here
- Rent minus price growth
- n/a
- positive means yields are improving
Show the numbers
| Month | Typical value |
|---|---|
| Aug 2021 | $394,834 |
| Aug 2022 | $500,794 |
| Aug 2023 | $522,734 |
| Aug 2024 | $567,026 |
| Aug 2025 | $584,854 |
| Aug 2026 | $598,260 |
Rent references
Two sources, never blended
| Source | Studio | 1 bed | 2 bed | 3 bed | 4 bed |
|---|---|---|---|---|---|
| HUD Small Area FMR, FY2026 | $1,430 | $1,490 | $1,640 | $1,980 | $2,530 |
| Zillow observed rent, Aug 2026 | not published for this ZIP | ||||
HUD's Fair Market Rent is the 40th percentile gross rent (rent plus utilities) for a standard unit, and it is what Section 8 vouchers pay against. Zillow's index tracks asking rents on listed homes. The two measure different things, so they are shown side by side and never averaged. HUD area: Beaufort County, SC HUD Metro FMR Area.
Property tax
- Effective rate
- 0.48%
- ZIP area, ACS
- At the typical price
- $2,878/yr
Median real estate taxes paid divided by median home value, Census ACS 2020 to 2024. Beaufort County: 0.48%. Actual bills depend on the assessment, exemptions and any non-homestead rate.
Supply
- Permits per 1,000 households
- 11.7
- Beaufort County, last 12 months
- National percentile
- 76th
- among US counties
963 new housing units permitted in 2025-09 to 2026-08, Census Building Permits Survey. A high figure means more new supply competing for tenants.
Nearby ZIP codes
| ZIP | Distance | Typical price | Rent | Gross yield | Cash flow /mo |
|---|---|---|---|---|---|
| 29907Beaufort | 7.5 mi | $485,000 | $2,238 | 5.5% | -$1,426 |
| 29902Beaufort | 8.2 mi | $424,000 | $1,720 | 4.9% | -$1,499 |
| 29935Port Royal | 8.4 mi | $365,000 | $1,494 | 4.9% | -$1,342 |
| 29906Beaufort | 12.9 mi | $359,000 | $1,742 | 5.8% | -$1,042 |
| 29926Hilton Head Island | 13.7 mi | $749,000 | $2,793 | 4.5% | -$2,661 |
| 29940Seabrook | 14.9 mi | $414,000 | $1,640* | 4.8% | -$1,493 |
| 29446Green Pond | 15.7 mi | $214,000 | $1,160* | 6.5% | -$593 |
| 29909Bluffton | 17.3 mi | $485,000 | $2,603 | 6.4% | -$1,088 |
* HUD Fair Market Rent, 2 bedroom (no Zillow rent index for that ZIP).
Every ZIP in Beaufort CountyHilton Head Island, SC metroSouth Carolina
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Open the calculator for 29920Questions
- Is 29920 good for rental property?
- On the typical home here, priced at $598,000 and renting for $1,640 a month (HUD Fair Market Rent, 2 bedroom, FY2026), the gross yield is 3.3% and the estimated cap rate is 1.0%. At a 7.78% investor rate with 25% down, estimated cash flow is -$2,704 a month. The median gross yield across the 8,418 ZIP codes with full Zillow data is 5.6%. These are figures for a typical property, not a judgement on any particular one.
- What is the typical rent in 29920?
- Zillow does not publish a rent index for 29920. HUD's FY2026 Small Area Fair Market Rent for a 2-bedroom here is $1,640, the 40th percentile of gross rents and the basis for Section 8 payment standards.
- What is the property tax rate in 29920?
- The effective property tax rate is about 0.48% of value (median taxes paid divided by median home value, Census ACS 2020 to 2024). On the typical $598,000 home that is about $2,878 a year. Your bill depends on the assessment and local exemptions.
- What interest rate makes a rental in 29920 break even?
- With the default assumptions, no interest rate brings cash flow to zero: rent does not cover operating costs plus principal on a 30-year loan with 25% down.
- How fast are prices and rents changing in 29920?
- Over the 12 months to August 2026, the typical home value changed +2.3%.
Sources and method
- Zillow Home Value Index (ZHVI), mid tier, smoothed and seasonally adjusted
Zillow Research. Read: 2026-08.
Typical home value by ZIP, county, metro and state, and the price trend.
- HUD Small Area Fair Market Rents, FY2026
US Department of Housing and Urban Development. Read: FY2026.
Rent by bedroom count for every ZIP. The rent used on tier B pages, and a reference on all pages. It is the 40th percentile gross rent, so it runs below market.
- American Community Survey 5-year estimates, 2020 to 2024 (B25103 median real estate taxes paid, B25077 median home value, B11001 households)
US Census Bureau. Read: 2020 to 2024.
Effective property tax rate (median taxes paid divided by median value) by ZIP code tabulation area, county and state; households for the permits ratio.
- Freddie Mac Primary Mortgage Market Survey, 30-year fixed (FRED series MORTGAGE30US)
Freddie Mac via the Federal Reserve Bank of St. Louis. Read: 2026-09-24.
The weekly 30-year rate. The site adds a disclosed investor premium to it for the loan payment.
- Building Permits Survey, county monthly files
US Census Bureau. Read: 2025-09 to 2026-08.
New housing units permitted in the last 12 months per 1,000 households, a supply-pressure signal.
- NAIC Homeowners Insurance Report, data for 2023
National Association of Insurance Commissioners. Read: 2023.
Average HO-3 homeowners premium by state, multiplied by 1.2 as a landlord-policy assumption.
Data: Zillow Research (ZHVI, ZORI), HUD, US Census Bureau, Freddie Mac. Every formula is on the methodology page.
Estimates from public data for a typical property. Not investment, tax or legal advice. Your property, financing and costs will differ.