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7 Custom Systems for a Global SA Pioneer
Custom-built PMS, booking systems, GDS integration, and content marketing for The Apartment Service, the company that helped invent the serviced accommodation industry. Now part of SilverDoor.
50,000+
Apartments
Est. 1981
Heritage
4
GDS Systems
7
Custom Builds
Client
The Apartment Service (TAS)
Industry
Global Serviced Accommodation / Corporate Housing
Heritage
Founded 1981 - pioneer of GDS integration and B2B booking
Duration
1999–2020
The Story
40 years of heritage. 7 custom systems. The company that invented the category.
The Apartment Service is one of the original names in global corporate housing. Founded in 1981, TAS pioneered GDS integration, OTA distribution, and B2B booking technology for the serviced accommodation sector. At its peak, TAS provided access to 50,000+ apartments worldwide through a global Network Partners programme.
This is where W4B's founder began his career in accommodation technology, giving us deep, first-hand understanding of how global booking systems, agent networks, and corporate travel distribution really work. TAS's legacy lives on as part of SilverDoor, the world's leading serviced apartment agent with 1,000,000+ apartments across 126 countries.
The Website
The Work
Website Design
Custom booking platform
Content Marketing
Industry thought leadership
Systems Development
PMS & booking engine
What We Built
Seven systems across four pillars
Central Reservations
- Bespoke FiveStar reservations system with real-time matching
- E-Track CRM with automated email intake every 10 minutes
- Comprehensive reporting: spend, occupancy, housekeeping
API & Middleware
- TABS Web Service - SOA middleware connecting front-end to database
- OTA (OpenTravel Alliance) 2007A compliant - SOAP + REST APIs
- B2B aggregation engine - local DB + external suppliers in single result set
GDS Distribution
- GDS connectivity: Sabre, Amadeus, Worldspan, Galileo
- Client distribution: corporate extranets, white label, affiliate programme
- Configurable Business Rules Engine for yield and cancellation
Web & Content
- WordPress build with hotel-style design and WPML multilingual
- 20+ domains managed across territories
- Content targeting corporate travel decision-makers
The Results
Scale that speaks for itself
| Metric | Result |
|---|---|
| Global apartment inventory | 50,000+ |
| Owned/managed apartments | 340+ |
| GSAIR survey respondents | 20,000+ operators |
| Custom systems built | 7 |
| GDS integrations | 4 (Sabre, Amadeus, Worldspan, Galileo) |
| OTA specification compliance | OTA 2007A |
| Owned domains managed | 20+ |
| Distribution tiers | 3 (Corporate, White Label, Affiliate) |
"W4B are highly experienced in all things related to the internet, websites, and the organizing of projects."
The Apartment Service merged with SilverDoor, now the world's leading serviced apartment agent, representing over 1,000,000 apartments in 126 countries. The technology foundations and industry expertise we built at TAS helped shape the systems that power global corporate accommodation today.
Why It Matters
We built the booking systems for a company that invented the category, and whose legacy now powers SilverDoor.
When we talk about understanding booking systems, channel managers, and OTA distribution, it's because we built some of the most ambitious bespoke technology in the serviced apartment sector over a 21-year engagement with a company whose work now underpins the world's largest serviced apartment agency.
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