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Renovated Office Building
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640 NW Gilman Blvd, Issaquah, WA 98027

Owner-user office property with elevator-served second floor, mixed-use zoning, and convenient interstate access.

Property Size8,704 SF
Lot Size0.90 Acres
Price / SF$677.85
Days on Market17

Property Features for 640 NW Gilman Blvd

General Information

Standard status Active
Size 8,704 SF
Total Parking Spaces 47
Elevators Yes
Lot size 0.90 Acres
Property subtype OFFICE
Zoning Mixed Use Central Issaquah

Additional Details

Highway Access Yes

Building Details

Year Built 1987
Year Renovated 2021
Listing Agency: Rosen-Harbottle Commercial R.E
Listed By: Brian Stewart
Source: Moodyscre
Added: Jul 21 Changed: Jul 31 Last Checked: Aug 6 at 8:19AM

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 Rosen-Harbottle Commercial R.E

Investment Insights

Based on property information with market context.

This office building offers up to 8,704 square feet for an owner-user and includes an elevator-served second floor. Built in 1987 and renovated in 2021, the property features a roof recovered in 2019 with a 15-year warranty. Most of the HVAC systems were replaced or upgraded in 2020–2021.

The property includes 47 parking stalls, including some covered stalls, and provides quick access to I-90. Zoning is Mixed Use Central Issaquah, with redevelopment potential up to 85 feet. The building is surrounded by Gilman Blvd retail amenities and occupies a total land area of 39,004 square feet.

Key Highlights

  • Up to 8,704 SF available for owner‑user occupancy
  • 47 parking stalls, including some covered stalls
  • Roof recovered in 2019 with 15‑year warranty

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
$183,541
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
3.11%
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%
$3,670,820 $3.7M
Cap Rate 7%
$2,622,014 $2.6M
Cap Rate 9%
$2,039,344 $2.0M
Market Conditions
NOI Build-Up for 8,704 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
$313.3K $36.00/SF
− Vacancy
−$68.6K −$7.88/SF
EGI
$244.7K $28.12/SF
− OpEx
−$61.2K −$7.03/SF
NOI
$183.5K $21.09/SF
Area
King County, WA
Vacancy
21.90%
Lease Rate
$36.00 /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%
$3,670,820
Cap Rate 7%
$2,622,014
Cap Rate 9%
$2,039,344

Alternative Uses

Best Use
Office B
$2.62M
$2.29M – $3.06M (±1% cap)
NOI $183,541 @ 7.0% cap · market cap 3.11%
Second Best
no second resolved use
Theoretical Best
Office A
$3.49M
$3.05M – $4.07M (±1% cap)
NOI $244,032 @ 7.0% cap · market cap 4.14%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Office buildings

Suggested Use

Top Pick Electrical Service Barber Shop (Bike/Boat/Book/etc) Store Restaurant Catering Service Carpet & Flooring Store

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

Yes
Highway access

Location Intelligence

Trade Area within ½ mile

2,002
Businesses Nearby

Demographics for 98027, WA

29,089
Population
12,071
Households
2.4
Avg Household Size
41
Median Age
65%
College-Educated
97%
High-School Grad
57.2 sq mi
ZIP Area
509
Density / Sq Mi
$150,000
Median Household Income
$82,823
Median Earnings
$2,343
Median Rent
$976,400
Median Home Value

Market

Vacancy Rate% for Office in West region

11% 2019
14.1% 2020
15.5% 2021
17.2% 2022
19.9% 2023
21% 2024
20.8% 2025
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Frequently Asked Questions

What type of property is this?
Office building - Owner-user office property with elevator-served second floor, mixed-use zoning, and convenient interstate access.
Where is this office building located?
The property is located at 640 NW Gilman Blvd Issaquah, WA.
What is the asking price?
The asking price for this property is $5,900,000.
What are key features of this property?
This property features: Up to 8,704 SF available for owner‑user occupancy; 47 parking stalls, including some covered stalls; Roof recovered in 2019 with 15‑year warranty
(425) 289-2222 Call to check price and availability
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