Kilambi News
Monday, October 19, 2026

435 Tasso Street (UBS Commercial Mortgage Trust 2018-C15)

Page built October 19, 2026

Property, terms, monthly financial history and surveillance record for a loan in UBS Commercial Mortgage Trust 2018-C15.

Data as of loan data through September 2026; ratings as held in the dataset at 2026-10-13

← UBS Commercial Mortgage Trust 2018-C15 · Loan annex · CMBS market

Deal
UBS Commercial Mortgage Trust 2018-C15
Current balance
$30.0M (September 2026)
Share of deal
6.8%
Status
Current
DSCR (latest)
1.00
Occupancy (latest)
73%
Scheduled maturity
2028-12-06

Property and terms

Property435 Tasso Street
Address435 Tasso Street; Palo Alto, CA 94301
Property typeOffice
Units, beds or keysnot yet reported
Net rentable square feet34,873
Year built1984
Year last renovatednot yet reported
Original balance$30.0M
Current balance$30.0M (September 2026)
Share of deal balance6.8%
Interest rate at origination4.40%
Current interest rate4.40%
Origination date12-04-2018
Original term120 months
Amortization termnot yet reported
Interest-only period120 months
Scheduled maturity2028-12-06
Prepayment lockout end06-05-2028
Yield maintenance endnot yet reported
ServicerMidland Loan Services
Loan servicernot yet reported
OriginatorUBS AG, by and through its branch office at 1285 Avenue of the Americas, New York, New York
Current statusCurrent
Specially serviced nowNo
DefeasedNo

Valuation

BasisAmountDateSource (as filed)
At securitization$67.9M11-09-2018MAI
Most recent reported$67.9M2018-11-09MAI

Change from securitization to the most recent reported valuation: 0.0%.

Largest tenants

TenantSquare feetLease expiration
East West Bank10,28902-29-2028
GenBio.ai Inc4,75801-31-2027
Kylli Inc3,86310-31-2029

The three largest tenants as reported in the latest asset-level record.

Monthly history

$0$8,100,000$16,200,000$24,300,000$32,400,000201920202021202220232024202520260.00.71.52.23.020192020202120222023202420252026
MonthBalanceStatusRateDSCR (NCF)DSCR (NOI)OccupancyAdvancesFinancial period endRevenueExpensesNOINCF
December 2018$30.0Mnot yet reported4.40%2.232.23100%not yet reported09-30-2018$3.6M$603,974$3.0M$3.0M
January 2019$30.0MCurrent4.40%2.232.23100%$009-30-2018$3.6M$603,974$3.0M$3.0M
February 2019$30.0MCurrent4.40%2.232.23100%$009-30-2018$3.6M$603,974$3.0M$3.0M
March 2019$30.0MCurrent4.40%2.232.23100%$009-30-2018$3.6M$603,974$3.0M$3.0M
April 2019$30.0MCurrent4.40%not yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reported
May 2019$30.0MCurrent4.40%not yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reported
June 2019$30.0MCurrent4.40%not yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reported
July 2019$30.0MCurrent4.40%not yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reported
August 2019$30.0MCurrent4.40%not yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reported
September 2019$30.0MCurrent4.40%not yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reported
October 2019$30.0MCurrent4.40%not yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reported
November 2019$30.0MCurrent4.40%2.492.5992%not yet reported06-30-2019$4.2M$732,391$3.5M$3.3M
December 2019$30.0MCurrent4.40%2.492.5992%not yet reported06-30-2019$4.2M$732,391$3.5M$3.3M
January 2020$30.0MCurrent4.40%2.552.64100%not yet reported09-30-2019$4.3M$753,092$3.5M$3.4M
February 2020$30.0MCurrent4.40%2.552.64100%not yet reported09-30-2019$4.3M$753,092$3.5M$3.4M
March 2020$30.0MCurrent4.40%2.552.64100%not yet reported09-30-2019$4.3M$753,092$3.5M$3.4M
April 2020$30.0MCurrent4.40%2.562.66100%not yet reported12-31-2019$4.3M$769,240$3.6M$3.4M
May 2020$30.0MCurrent4.40%not yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reported
June 2020$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
July 2020$30.0MCurrent4.40%2.722.82100%$003-31-2020$4.6M$805,120$3.8M$3.6M
August 2020$30.0MCurrent4.40%2.722.82100%$003-31-2020$4.6M$805,120$3.8M$3.6M
September 2020$30.0MCurrent4.40%2.722.82100%$003-31-2020$4.6M$805,120$3.8M$3.6M
October 2020$30.0MCurrent4.40%2.752.84100%$006-30-2020$4.6M$774,720$3.8M$3.7M
November 2020$30.0MCurrent4.40%2.752.84100%$006-30-2020$4.6M$774,720$3.8M$3.7M
December 2020$30.0MCurrent4.40%2.752.8495%$006-30-2020$4.6M$774,720$3.8M$3.7M
January 2021$30.0MCurrent4.40%2.682.7795%$009-30-2020$4.5M$792,348$3.7M$3.6M
February 2021$30.0MCurrent4.40%2.682.7795%$009-30-2020$4.5M$792,348$3.7M$3.6M
March 2021$30.0MCurrent4.40%2.682.7790%$009-30-2020$4.5M$792,348$3.7M$3.6M
April 2021$30.0MCurrent4.40%2.632.7290%$012-31-2020$4.4M$790,101$3.6M$3.5M
May 2021$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
June 2021$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
July 2021$30.0MCurrent4.40%1.922.0273%$003-31-2021$862,409$185,755$676,654$644,359
August 2021$30.0MCurrent4.40%1.922.0273%$003-31-2021$862,409$185,755$676,654$644,359
September 2021$30.0MCurrent4.40%1.922.0273%$003-31-2021$862,409$185,755$676,654$644,359
October 2021$30.0MCurrent4.40%1.912.0173%$006-30-2021$3.4M$755,626$2.7M$2.6M
November 2021$30.0MCurrent4.40%1.912.0173%$006-30-2021$3.4M$755,626$2.7M$2.6M
December 2021$30.0MCurrent4.40%1.912.0178%$006-30-2021$3.4M$755,626$2.7M$2.6M
January 2022$30.0MCurrent4.40%1.922.0278%$009-30-2021$3.5M$773,176$2.7M$2.6M
February 2022$30.0MCurrent4.40%1.922.0278%$009-30-2021$3.5M$773,176$2.7M$2.6M
March 2022$30.0MCurrent4.40%1.922.0278%$009-30-2021$3.5M$773,176$2.7M$2.6M
April 2022$30.0MCurrent4.40%1.922.0278%$009-30-2021$3.5M$773,176$2.7M$2.6M
May 2022$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
June 2022$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
July 2022$30.0MCurrent4.40%2.032.1279%$003-31-2022$896,918$186,638$710,280$677,986
August 2022$30.0MCurrent4.40%2.032.1279%$003-31-2022$896,918$186,638$710,280$677,986
September 2022$30.0MCurrent4.40%2.032.1279%$003-31-2022$896,918$186,638$710,280$677,986
October 2022$30.0MCurrent4.40%2.102.2079%$006-30-2022$3.7M$771,311$2.9M$2.8M
November 2022$30.0MCurrent4.40%2.102.2079%$006-30-2022$3.7M$771,311$2.9M$2.8M
December 2022$30.0MCurrent4.40%2.102.2079%$006-30-2022$3.7M$771,311$2.9M$2.8M
January 2023$30.0MCurrent4.40%2.032.1279%$009-30-2022$3.6M$777,530$2.8M$2.7M
February 2023$30.0MCurrent4.40%2.032.1279%$009-30-2022$3.6M$777,530$2.8M$2.7M
March 2023$30.0MCurrent4.40%2.032.1279%$009-30-2022$3.6M$777,530$2.8M$2.7M
April 2023$30.0MCurrent4.40%2.032.1279%$009-30-2022$3.6M$777,530$2.8M$2.7M
May 2023$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
June 2023$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
July 2023$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
August 2023$30.0MCurrent4.40%1.982.0779%$003-31-2023$895,911$201,480$694,431$662,136
September 2023$30.0MCurrent4.40%1.982.0773%$003-31-2023$895,911$201,480$694,431$662,136
October 2023$30.0MCurrent4.40%1.922.0273%$006-30-2023$3.5M$822,678$2.7M$2.6M
November 2023$30.0MCurrent4.40%1.922.0273%$006-30-2023$3.5M$822,678$2.7M$2.6M
December 2023$30.0MCurrent4.40%1.922.0273%$006-30-2023$3.5M$822,678$2.7M$2.6M
January 2024$30.0MCurrent4.40%1.922.0270%$006-30-2023$3.5M$822,678$2.7M$2.6M
February 2024$30.0MCurrent4.40%1.942.0470%$009-30-2023$3.6M$849,409$2.7M$2.6M
March 2024$30.0MCurrent4.40%1.942.0458%$009-30-2023$3.6M$849,409$2.7M$2.6M
April 2024$30.0MCurrent4.40%1.881.9858%$012-31-2023$3.5M$851,730$2.7M$2.5M
May 2024$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
June 2024$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
July 2024$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
August 2024$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
September 2024$30.0MCurrent4.40%1.111.2153%$003-31-2024$622,465$217,305$405,160$372,866
October 2024$30.0MCurrent4.40%1.111.2153%$003-31-2024$622,465$217,305$405,160$372,866
November 2024$30.0MCurrent4.40%0.630.7353%$006-30-2024$2.5M$1.5M$975,116$845,937
December 2024$30.0MCurrent4.40%0.630.7353%$006-30-2024$2.5M$1.5M$975,116$845,937
January 2025$30.0MCurrent4.40%0.630.7353%$006-30-2024$2.5M$1.5M$975,116$845,937
February 2025$30.0MCurrent4.40%0.630.7353%$006-30-2024$2.5M$1.5M$975,116$845,937
March 2025$30.0MMatured balloon, non-performing4.40%0.500.6045%$102,66709-30-2024$2.3M$1.5M$803,910$674,731
April 2025$30.0MCurrent4.40%0.500.6058%$009-30-2024$2.3M$1.5M$803,910$674,731
May 2025$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
June 2025$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
July 2025$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
August 2025$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
September 2025$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
October 2025$30.0MCurrent4.40%1.041.1362%$003-31-2025$767,743$388,653$379,090$346,796
November 2025$30.0MCurrent4.40%1.041.1362%$003-31-2025$767,743$388,653$379,090$346,796
December 2025$30.0MCurrent4.40%1.001.0962%$006-30-2025$3.0M$1.6M$1.5M$1.3M
January 2026$30.0MCurrent4.40%1.011.1173%$009-30-2025$3.0M$1.6M$1.5M$1.4M
February 2026$30.0MCurrent4.40%1.491.5873%$009-30-2025$3.0M$921,640$2.1M$2.0M
March 2026$30.0MCurrent4.40%1.491.5873%$009-30-2025$3.0M$921,640$2.1M$2.0M
April 2026$30.0MCurrent4.40%1.491.5873%$009-30-2025$3.0M$921,640$2.1M$2.0M
May 2026$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
June 2026$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
July 2026$30.0MCurrent4.40%not yet reportednot yet reportednot yet reported$0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
August 2026$30.0MCurrent4.40%1.001.0273%$003-31-2026$761,766$419,116$342,650$333,172
September 2026$30.0MCurrent4.40%1.001.0273%$003-31-2026$761,766$419,116$342,650$333,172

Revenue, expenses, net operating income (NOI) and net cash flow (NCF) are the most recent financials reported as of each month, for the financial period ending on the date shown. DSCR is debt service coverage on the net cash flow and net operating income bases as reported.

Sources: SEC Form ABS-EE asset-level reports for the deal. Definitions are in the methods note on the market page.