Historic Mixed-Use Office
For Sale
$749,990
30 Trammell St SW, Marietta, GA 30064
O/I-zoned property with private offices, reception space, original moldings, and rear parking near Marietta Square.
Property Size1,960 SF
Price / SF$382.65
Days on Market40
Property Features for 30 Trammell St SW
General Information
Standard status
Active
Size
1,960 SF
Zoning
O/I
Building Details
Year Built
1905
Listing Agency:
Keller Williams Realty Cityside
Listed By:
Taiwo OniruAkintokun
Source:
Eternorealtygroup
Added: Jul 21
Changed: Aug 28
Last Checked: Aug 28 at 12:36PM
Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Keller Williams Realty Cityside
Investment Insights
Based on property information with market context.
Built in 1905, this mixed-use property is currently configured for professional office use. The interior includes original moldings, a welcoming foyer, reception area, private offices, and bathrooms, combining historic architectural details with a practical office layout. A second private entrance and rear parking add functional flexibility.
The property is located on Trammell St SW near Marietta Square and within walking distance of the Cobb County Courthouse. It is zoned O/I (Office/Institutional), and the zoning cannot be changed; however, the source indicates that a variance may be available for residential use. The existing configuration supports continued professional occupancy, with potential for a live-work arrangement or conversion to a private residence subject to applicable approvals.
The property is located on Trammell St SW near Marietta Square and within walking distance of the Cobb County Courthouse. It is zoned O/I (Office/Institutional), and the zoning cannot be changed; however, the source indicates that a variance may be available for residential use. The existing configuration supports continued professional occupancy, with potential for a live-work arrangement or conversion to a private residence subject to applicable approvals.
Key Highlights
- 1905 historic mixed‑use property near Marietta Square
- O/I (Office/Institutional) zoning; rezoning is not permitted
- Foyer, reception area, private offices, bathrooms, and original moldings
Financial Insights
Estimated NOI and Cap Rate
NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$26,246
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
3.50%
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$524,920
$524.9K
Cap Rate 7%
$374,943
$374.9K
Cap Rate 9%
$291,622
$291.6K
Market Conditions
NOI Build-Up for 1,960 SF
Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent.
EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs.
OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements.
NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$46.8K $23.87/SF
− Vacancy
−$11.8K −$6.02/SF
EGI
$35.0K $17.85/SF
− OpEx
−$8.7K −$4.46/SF
NOI
$26.2K $13.39/SF
Area
Cobb County, GA
Vacancy
25.20%
Lease Rate
$23.87 /SF/Yr
Expense Ratio
25.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$524,920
Cap Rate 7%
$374,943
Cap Rate 9%
$291,622
Alternative Uses
Best Use
Office B
$374.9K
$328.1K – $437.4K
NOI $26,246 @ 7.0% cap · market cap 3.50%
Second Best
Mixed Use
$369.6K
$323.4K – $431.2K
NOI $25,872 @ 7.0% cap · market cap 3.45%
Theoretical Best
Office A
$550.4K
$481.6K – $642.1K
NOI $38,526 @ 7.0% cap · market cap 5.14%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Location Intelligence
Trade Area within ½ mile
2,307
Businesses Nearby
Explore this area
Business Placement
Demographics for 30064, GA
50,568
Population
19,076
Households
2.7
Avg Household Size
43
Median Age
58%
College-Educated
96%
High-School Grad
30.7 sq mi
ZIP Area
1,647
Density / Sq Mi
$118,511
Median Household Income
$56,400
Median Earnings
$1,635
Median Rent
$420,300
Median Home Value
Market
Vacancy Rate% for Office in South region
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.
Frequently Asked Questions
What type of property is this?
Mixed-use property - O/I-zoned property with private offices, reception space, original moldings, and rear parking near Marietta Square.
Where is this mixed-use property located?
The property is located at 30 Trammell St SW Marietta, GA.
What is the asking price?
The asking price for this property is $749,990.
What are key features of this property?
This property features: 1905 historic mixed‑use property near Marietta Square; O/I (Office/Institutional) zoning; rezoning is not permitted; Foyer, reception area, private offices, bathrooms, and original moldings
