Houston office investment sales crossed $808 million in the third quarter, according to Avison Young's Q3 2026 report, pushing year-to-date volume past $2 billion. Average pricing came in at $143 per square foot, up from $139 a year earlier. On paper, that reads as a recovering office sales market. Underneath it, the numbers tell a more specific story about which office buildings that recovery actually applies to.
Start with vacancy, because it's where the split is clearest. Trophy properties ended the quarter at an 8.5% direct vacancy rate — their lowest level in a decade — even after absorbing roughly 458,000 square feet of new deliveries this year. Lower-quality asset classes, meanwhile, are sitting above 27% direct vacancy. That's not two ends of one market; that's two different markets wearing the same zip code. Trophy and top-tier Class A space alone generated over 1 million square feet of net occupancy gains year-to-date, and more than 74% of those gains landed in newly available or recently delivered buildings — named leaders include 990 Town & Country, CityCentre Six, 845 Texas, and The RO. Memorial City's availability fell 670 basis points year-over-year to 11.2%, one of the sharpest tightenings in the metro.
Rents confirm it from the pricing side: the greater Houston average asking rent sits at $34.12 per square foot, while trophy and top-tier Class A space commands $46.04 asking and $44.77 net effective — a gap of just $1.27 between asking and effective rent, which means landlord concessions are shrinking fast for the buildings tenants actually want. Everyone else is still negotiating from a much weaker position; lower-tier Class A and Class B buildings kept losing tenants through the quarter.
Here's the part that should get a landlord's attention: that same gap is now priced into resale value, not just rent roll. A market where leasing volume has run below its five-year quarterly average for seven straight quarters, where tenants under 10,000 square feet now make up 40% of leasing activity against a 34% historical norm, and where average lease terms have stretched to nearly 72 months — with new trophy leases averaging 109 months — isn't a market where capital is chasing yield indiscriminately. It's a market where capital followed tenants to the same six or eight buildings, and everyone else's resale math just got harder.
The headline $143-per-square-foot average is doing a lot of work to hide that split. It blends trophy sales trading on a decade-low vacancy rate with lower-tier building sales trading on a 27%-plus vacancy rate, and reports it back as one number. If you own — or are underwriting a purchase of — anything outside the top tier, that blended average isn't your comp. Your comp is whatever a building with your actual occupancy profile is trading at, and increasingly, that's a different conversation than the one the headline number implies.
Tenants picked their buildings first. Now the money is following them there — and pricing everything else accordingly.