Barrington, IL Office Space for Lease: 2026 Costs, Buildings and Rents

Data as of October 2026 | Last updated October 17, 2026

Most of that vacancy sits in a few large buildings, including the Hart Professional Center. The smaller downtown buildings are about 81% leased. Tenant Advisors, Inc. represents only tenants in Barrington and the Northwest Suburbs office market, at no cost to tenants. Call (847) 778-0296.

Key Takeaways

• Vacancy is 66%, up 1 point in a year; the availability rate is 40.7%.
• Class A asks about $30/SF gross; Class B about $18/SF.
• The Hart Professional Center is about 12% leased; the smaller downtown buildings are about 81% leased.
• No sublease space is listed.

Barrington Office Market Facts and Figures

Tenant Advisors tracks multi-tenant office buildings of 5,000 SF and larger in Barrington, the competitive set where most tenants of 3,000 to 50,000 SF lease space. Owner-occupied buildings are excluded.

Metric	Barrington
Tracked buildings	13
Total inventory	665,000 SF
Vacancy rate	66.0% (65.0% one year ago)
Availability rate	40.7%
Net absorption, trailing 12 months	-6,300 SF
Space leased, trailing 12 months	18,600 SF
Class A asking rent	~$30/SF gross
Class B asking rent	~$18/SF gross
Free rent	1–1.5 months per lease year
Tenant improvement allowance	$6–$8/SF per lease year (Class A)
Average months on market	22.6
Lease renewal rate, past 24 months	36%
Sublease space available	None in tracked buildings
New construction	None
Vacant SF vs. space offered for lease	~439,000 SF vacant; ~271,000 SF offered
Most available space in one property	~70,000 SF (Hart Professional Center, 3 buildings)

Figures reflect Tenant Advisors’ market tracking of multi-tenant office buildings 5,000 SF and larger in Barrington. Rents and concessions are Tenant Advisors’ tracked-transaction ranges, quoted full-service gross. Data is updated quarterly.

What Does Office Space Cost Per Month in Barrington?

A 5,000 SF office in Barrington costs about $12,500 a month in a Class A building and about $7,500 a month in Class B, before free rent. Those figures use Tenant Advisors’ tracked gross rents of about $30/SF in Class A and about $18/SF in Class B.

Office size	Class A, monthly ($30/SF)	Class B, monthly ($18/SF)
2,000 SF	about $5,000	about $3,000
5,000 SF	about $12,500	about $7,500
10,000 SF	about $25,000	about $15,000

Monthly rent before free rent and improvement allowances. Gross rent generally includes real estate taxes and building operating expenses.

Gross rent is not always the whole bill. Ask each landlord about:

• In-suite electricity, which some buildings bill separately.
• Operating expense and tax increases over the base year, which a cap can limit.
• After-hours heating and cooling charges.
• Build-out costs above the improvement allowance, plus cabling, furniture and moving.

Is Barrington Office Space Filling Up or Emptying Out?

Neither, much. Barrington lost 6,300 SF of occupied space over the past year, and vacancy rose about 1 point. Leasing is thin, only 18,600 SF in 12 months, so a single tenant of a few thousand square feet is a meaningful deal for a Barrington landlord.

Why Is Barrington Office Vacancy So High?

A handful of large, mostly empty buildings. The three buildings of the Hart Professional Center on Hart Road total about 199,000 SF and are only about 12% leased. The smaller buildings Tenant Advisors tracks, most of them downtown, are about 81% leased. Outside the large vacant buildings, Barrington is a small office market with limited options.

What Are the Notable Office Buildings in Barrington?

Building	Address	Size (SF)	Built	Class	% Leased	Available (SF)
Hart Professional Center (3 buildings)	600, 800 and 1000 Hart Rd.	198,733	1984	A/B	12%	70,271
201 S. Grove Ave.	201 S. Grove Ave.	58,203	1970	B	94%	3,580
Welsh Center North	1250 S. Grove Ave.	56,668	1987	B	68%	18,204
Good Shepherd medical buildings (2)	27750 and 27790 W. Highway 22	68,452	1980–1990	B	78%	14,790
777 Business Park	777 Lake Zurich Rd.	22,080	1989	B	89%	2,464
325 N. Hough St.	325 N. Hough St.	13,905	1980	B	71%	4,000

Available SF includes direct and sublease space, including space coming available. Tenant Advisors market tracking, October 2026.

Hart Professional Center, Hart Road

Three buildings totaling about 199,000 SF, about 12% leased, with about 70,000 SF offered. Two of the three buildings are fully vacant.

Downtown Barrington and the Metra station

Smaller buildings near the Metra Union Pacific Northwest station, such as 201 S. Grove Avenue and 110 S. Hager Avenue, are 94% to 98% leased. Wealth managers, financial services firms, private practices and executive offices fill them because their principals and clients live nearby. Openings here are rare.

Which Barrington Buildings Fit Small and Large Tenants?

Small tenants do best in buildings with suites already built out, while companies needing a full floor or more should start with the buildings carrying the largest vacant blocks. Use this as a starting list; actual suites change month to month.

Space needed	Where to start looking	Why
Under 5,000 SF	201 S. Grove Ave., 777 Business Park, 325 N. Hough St.	Small buildings near downtown Barrington
5,000–20,000 SF	Welsh Center North, Good Shepherd medical buildings	About 15,000 to 18,000 SF available
20,000 SF and up	Hart Professional Center	The largest block in Barrington, about 70,000 SF

Is There Sublease Office Space in Barrington?

No sublease space is listed in the 13 buildings Tenant Advisors tracks. Tenants who want sublease options usually look at Hoffman Estates or Schaumburg.

How Does Barrington Compare With Other Northwest Suburbs Cities?

City	Vacancy	Year ago	12-mo net absorption (SF)	Inventory	Sublease SF	Asking rent, gross
Schaumburg	33.1%	34.4%	+109,900	8.6M SF	134,400	A $34–$38; B $20–$24
Hoffman Estates	42.8%	43.9%	+36,100	3.2M SF	99,900	A $34–$38; B $19–$24
Arlington Heights	40.9%	37.8%	-53,100	1.8M SF	4,600	A ~$26; B ~$19
Rolling Meadows	41.2%	36.9%	-92,000	2.1M SF	0	A ~$30; B ~$19
Palatine	22.9%	21.6%	-7,800	589,000 SF	0	~$19.50 average
Barrington	66.0%	65.0%	-6,300	665,000 SF	0	A ~$30; B ~$18
Elgin	38.6%	38.1%	-12,700	2.1M SF	3,600	A ~$26; B ~$20
Itasca	25.4%	21.3%	-103,000	2.5M SF	43,300	A $24–$28; B $19–$24

Tenant Advisors market tracking, multi-tenant office buildings 5,000 SF and larger, October 2026. Rents are Tenant Advisors’ tracked-transaction figures per SF per year.

Should You Lease, Sublease or Use Coworking in Barrington?

Lease direct if you need space for three years or more, sublease if you want built-out space at a discount and the remaining term fits, and use coworking only for small teams that need flexibility for a year or less. No sublease space is listed in the Barrington buildings Tenant Advisors tracks right now, so direct space is the main option.

	Direct lease	Sublease	Coworking
Typical term	3 to 10 years	Whatever remains on the original lease	Month to month up to 1–2 years
Cost	Market rent, with free rent and an improvement allowance	Usually below direct rent	Priced per desk or office; usually the highest cost per SF
Build-out	Custom, funded largely by the landlord	As-is, often furnished	Ready to use
Watch out for	Committing to more space than you need	Landlord consent and the short remaining term	Rate increases at renewal and limited privacy

Where Is the Leverage in Barrington Right Now?

Barrington is two markets. The large vacant buildings, including the Hart Professional Center, need tenants and will compete hard on rent, free rent and build-out. Downtown buildings are nearly full and concede less. Inventory is small, so the strongest leverage comes from pricing Barrington against Palatine, Hoffman Estates and Schaumburg.

What Should Tenants Negotiate on a Barrington Office Lease in 2026?

• Rent: target effective rent after concessions, not the asking rate.
• Free rent: 1 to 1.5 months per year of lease term, or 5 to 7.5 months on a 5-year lease.
• Tenant improvement allowance: $6 to $8/SF per year of lease term in Class A ($30 to $40/SF on a 5-year lease) and about $3 to $6/SF per year in Class B. Get build-out pricing before you negotiate this number.
• Operating expense caps: 4% to 6% annually on controllable expenses.
• Flexibility: expansion, contraction and sublease rights, negotiated upfront.
• Parking: included in rent for the full term with no separate escalation.

How Does Tenant Advisors Find and Tour Space in Barrington?

We build a shortlist from every building in Barrington that fits your size, budget and timing, tour the best options in one block, and negotiate with several landlords at once. The landlord pays our fee, so there is no cost to tenants.

1. Requirements call: size, budget, move date and must-haves.
2. Building survey: every option that fits, including sublease space, with rents and availability.
3. Tours: your top choices scheduled back to back.
4. Competing proposals: requests to three or more landlords, compared side by side on net effective cost.
5. Negotiation and lease review alongside your attorney through signing and move-in.

Why Do Companies Lease Office Space in Barrington?

Barrington is the prestige address of the far northwest suburbs, with a Metra station, Route 14 and Route 59, and I-90 nearby. Firms choose it to be near where their owners, clients and senior staff live. For the full market picture, see our Northwest Suburbs office market page.

Frequently Asked Questions

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About the authors: Tom Koelzer (Co-Founder & Managing Partner, LinkedIn) and Dave Ven Horst (Co-Founder & Managing Broker, LinkedIn) founded Tenant Advisors, Inc. in 2004. Both have worked in Chicago office leasing since 1986, and the firm has negotiated more than 2,000 office leases, representing tenants only. Benchmark your Barrington lease against the market: (847) 778-0296 | tkoelzer@tenantadvisors.com.

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