Hotel Castillo Resort · San Gil, Santander, Colombia
If you run a hotel, resort, or boutique property, you already know the math. A guest books through Booking.com, you get the reservation, and somewhere between 15 and 25 percent of that revenue walks out the door before you ever touch it.
Multiply that across 200 bookings a month and you're looking at a significant annual loss — money that could fund a new suite, a marketing campaign, or simply stay in your pocket.
In 2024, we worked with Hotel Castillo Resort in San Gil, Colombia to build a complete custom booking system. Here's what we built, what it cost, and what happened after launch.
The Problem with OTAs
Online travel agencies (OTAs) — Booking.com, Expedia, Airbnb, TripAdvisor — are powerful discovery platforms. Travelers trust them. But that trust comes at a price.
- Commission fees ranging from 15% to 25% per booking
- No access to guest data — you don't own the customer relationship
- Price parity clauses that prevent you from offering better rates directly
- Dependency risk — algorithm changes can cut your visibility overnight
Hotel Castillo was getting roughly 70% of their reservations through OTAs. The owner, Pablo Castillo, knew he was leaving money on the table but assumed a custom solution was out of reach. It wasn't.
Booking Revenue Split — Before vs. After Custom System
What We Built
The system had three core components:
1. Direct Booking Engine
A real-time availability calendar connected to the hotel's room inventory. Guests can select dates, choose room type, see pricing, and pay — all without leaving the hotel's own website. We integrated a local payment gateway that supports Colombian peso transactions and international cards.
2. Inventory & Operations App
A custom mobile app for the front desk and management team. Staff can see live occupancy, manage check-ins, flag maintenance requests, and run occupancy reports from their phones. No spreadsheet juggling, no paper forms.
3. Google Ads Campaign
A booking system only works if people find your website. We built and manage a Google Ads campaign targeting travelers searching for hotels and adventure tourism in San Gil and Santander. The campaign drives qualified traffic directly to the booking engine.
"Online reservations went up significantly and our team manages everything from one system now. The app paid for itself in the first month." — Pablo Castillo, Hotel Castillo Resort
What It Costs to Build a Hotel Booking System
This is the question every hotel owner asks, and the honest answer is: it depends on scope. But here's a real range based on what we've built:
- Basic booking engine (availability + payment): $2,500–$4,500
- Booking engine + inventory management app: $5,000–$9,000
- Full system with Google Ads management: $6,500–$12,000 + monthly retainer
Compare that to a single year of OTA commissions on even a modest property. For most hotels we work with, the system pays for itself within 3–6 months.
Is a Custom System Right for Your Property?
A custom booking system makes sense if:
- You're doing 50+ bookings per month through OTAs
- You have repeat guests who would book direct if it was easy
- You have staff managing inventory manually (spreadsheets, phone calls)
- You want to run direct promotions without OTA price parity restrictions
If you're just getting started or doing under 20 bookings a month, an OTA presence still makes sense as your primary discovery channel. The strategy shifts as your volume grows.
How to Get Started
We offer a free 30-minute discovery call where we look at your current booking volume, commission spend, and operations — and tell you honestly whether a custom system makes financial sense for your property. No pitch, just numbers.