Private Reservation Concierge

Your routine. Quietly arranged.

An independent reservation concierge for Third Space members. Choose your preferred classes and weekly times. Tertia submits your booking requests when reservations open and lets you know the outcome.

The Booking Experience

A quieter weekly routine

The Manual Scramble

Before-Work Sessions (06:00 to 08:30)

Setting 07:14 alarms on rest days, frantically refreshing in bed while half-asleep.

After-Work Sessions (17:15 to 19:30)

Pausing client calls or checking your phone under a conference table at 18:14 to catch the drop.

The 15-Second Rush

App spinners, network lag, and the stress of competing against 50 other members simultaneously.

The Consequence

Waitlist position #14 if you are 30 seconds late. A disrupted workout schedule.

Focus: Managing gym logistics and calendar alarms.

Effortless Routine

Zero Alarms

Wake up naturally. Monday morning quietly confirms your Wednesday spot.

Zero Interruption

Tertia books directly at 18:15:00 while you stay focused on your work.

Direct Cloud Execution

Automated reservation payload confirms your class the moment the club gateway opens.

Consistent Routine

Confirmed reservation details delivered quietly to your member dashboard and notification feed.

Focus: Your health, sleep, and work. Zero friction.

Verified Capacity Telemetry

Morning and Evening Prime Bottlenecks

Canary Wharf & Mayfair Timetable Feeds
06:10 AM · MorningFull

Traditional Reformer Pilates

Studio 1 · 18 Reformers

Waitlist queue: 8 members

07:10 AM · MorningFull

Dynamic Reformer Pilates

Studio 1 · High Intensity

Waitlist queue: 10 members

07:15 AM · MorningFull

Lift

Strength Rig · 42 Capacity

Waitlist queue: 11 members

17:10 PM · EveningFull

Fundamental Reformer Pilates

Studio 1 · 18 Reformers

18 of 18 spots filled

18:10 PM · EveningFull

Traditional Reformer Pilates

Studio 1 · Evening Prime

Waitlist queue: 16 members

18:15 PM · EveningFull

Lift

Strength Rig · Heavy Barbells

Waitlist queue: 9 members

Private Reformer Pilates Sanctuary
Private Reformer Sanctuary · London Club Circuit48h advance booking opening: Exactly 48 hours prior to session

The Protocol

How Tertia Operates in 3 Steps

Bank-grade AES-256-GCM envelope encryption. Plaintext passwords never stored or logged.

STEP 01

Set your weekly routine

Choose your recurring classes and times from the timetable. Set it once in under 60 seconds.

STEP 02

Automated booking

The moment your club opens reservations, Tertia books your spot. Spot secured without morning alarms or app refreshing.

STEP 03

Standby recovery

High-demand sessions fill in seconds. When capacity is reached, Tertia maintains active standby, securing your reservation as other members amend their schedules.

Private Reservation Concierge

Select Your Membership Tier

14-day cancellation guarantee on all tiers.

Casual

3 automated reservations monthly, single club preference

£14/ month
  • 3 automated reservations monthly
  • Single club preference
  • Zero 3-strike risk protection
Select Casual

Club

Recommended

Unlimited reservations, all London clubs, waitlist monitor, recovery suite

£29/ month
  • Unlimited automated reservations
  • All London club locations
  • Active waitlist & drop monitor
  • Recovery suite reservation access
Select Club

14-day cancellation and full refund guarantee on all subscriptions. Cancel anytime from your member dashboard.

Tuesday and Thursday 07:15 Yard Strong at Canary Wharf used to require setting an alarm at 06:59 and watching the wheel spin. With Tertia, every session is confirmed before I even check my phone.

Managing Director, Investment Banking · Canary Wharf

Mayfair Reformer fills instantaneously. Tertia secures my spot the moment reservations open, and one-click cancellation means I never have to worry about booking strikes.

Partner, Private Equity · Mayfair