Estimate Size & Rates

Size – Rule of Thumb

100% open floor plan for cubes / open desks: 5 people per 1,000 SF
50% open and 50% private office / conference rooms layout: 4 people per 1,000 SF
100% private office layout: 3 people per 1,000 SF

You can physically fit a lot of people in a small space, but there are two main constraints of how dense you can occupy a space:

Parking
Most office buildings have available parking of 3 to 4 spaces per 1,000 SF of building area. What this means is that your share of the available parking will be at this ratio. If you have more employees (and cars) than your allotment, you could be taking spaces from other tenants and stressing out the parking lot. As a building approaches 100% occupied, over parking becomes more of a problem for management as existing tenants start to complain. If you become a parking nuisance, the landlord has the ability to put you into default of your lease.

Air Conditioning
If you put a bunch of people and computers in a small space (in Texas), the standard air conditioning can’t keep the space cool. The landlord isn’t going to fix the problem if you are over your allotted density.

Current Asking Rates — $/SF/Year (2026)

Austin Office Rental Rates — Q1 2026

As of Q1 2026, Austin office asking rents average about $42 per SF/year (full-service equivalent), with citywide vacancy near 15.7% — a genuinely tenant-favorable market. Rates vary widely by class, submarket, building quality, and concessions. Current benchmarks:

Class Avg. Asking Rent (full-service, $/SF/yr)
Class A (4–5 Star) ~$51
Class B (3 Star) ~$37
Class C (1–2 Star) ~$33

By submarket — Class A base rents (NNN):

  • CBD & North/Domain (urban): $38–$46 NNN, trophy towers to ~$53
  • Northwest & Southwest (suburban): $24–$33 NNN

NNN rates are base rent; add operating expenses (roughly $10–$18/SF). Flex and office-warehouse space runs about $11–$19/SF plus utilities & janitorial.

Source: CoStar Austin Office Market Report, Q1 2026. Asking rates only — your actual rate depends on building, term, concessions, and negotiation.

Want a real number for your space? We’ll pull current comps for your target size and submarket.

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For the full quarterly analysis behind these numbers, see our Austin office market update for Q1 2026.

Related resources: Commercial real estate basics · Common leasing mistakes · Lease structures explained · Key lease deal points · Office move checklist

Frequently Asked Questions

How much office space do I need?
A practical starting point is 150 to 250 square feet per employee. Open layouts trend lower; lots of private offices and conference rooms trend higher. We refine the number around how your team actually works.
What are current Austin office rental rates?
As of the first quarter of 2026, market asking rents average roughly $42 per square foot full-service — about $51 for Class A, $37 for Class B, and $33 for Class C. Triple-net rates by submarket run roughly $24 to $46, with trophy space near $53.
What is the difference between full-service and triple-net rent?
Full-service (gross) rent bundles operating expenses, taxes, and insurance into one rate. Triple-net (NNN) quotes a lower base rate plus your share of those expenses on top. We compare deals on an apples-to-apples basis so the real cost is clear.
How much parking should I expect?
Most Austin office buildings offer roughly three to four spaces per 1,000 square feet leased; suburban properties usually offer more than downtown. We confirm the ratio and any reserved-space cost before you sign.

Want the full rate picture? Our Austin Office Market Guide lays out asking rents by class and submarket, full-service versus triple-net, and current vacancy.