buildontop.com

BuildonTop — White-Label SaaS for Construction Management

A white-label construction management SaaS platform that enabled 60+ companies to digitize project tracking, resource allocation, and client reporting — deployed in under 48 hours per tenant.

Project Overview

A construction technology startup had validated demand for a modern project management tool specifically designed for small-to-mid-sized construction companies. But they needed a platform that could be white-labeled, deployed rapidly for each new customer, and scale to hundreds of tenants without exploding infrastructure costs. We built Buildora — a multi-tenant SaaS platform with customizable branding, role-based access, real-time project dashboards, and automated PDF reporting.

Client Background

Our client is a construction tech entrepreneur who previously managed projects at a mid-size general contractor and experienced firsthand the chaos of spreadsheet-based project tracking, missed deadlines, and lost documentation. After validating the concept with 15 paying beta users, they needed an engineering partner to transform their prototype into a production-grade, multi-tenant SaaS product that could scale to hundreds of construction companies.

The Challenge

1

The prototype was a single-tenant application with hardcoded configurations — it couldn't be deployed for multiple customers without significant manual work for each instance.

2

Construction companies needed fully customizable branding (logos, colors, domains) to present the tool as their own proprietary platform to clients and subcontractors.

3

The platform needed to handle complex role hierarchies — project managers, site supervisors, subcontractors, and clients all needed different access levels and views.

4

Automated PDF report generation was critical — construction companies submit weekly progress reports, inspection checklists, and change order documentation that must look professional.

5

Infrastructure costs needed to remain predictable — the client couldn't afford per-tenant infrastructure scaling typical of isolated deployment models.

Our Approach

Multi-Tenant Architecture (Weeks 1-4)

We designed a shared-database, schema-isolated multi-tenant architecture using PostgreSQL's Row Level Security. Each tenant's data is logically isolated at the database level, while sharing compute resources. The tenant provisioning system handles custom domain mapping, branding configuration, and initial data seeding — enabling a new tenant to go live in under 48 hours.

Core Platform & Role System (Weeks 3-8)

We built the platform using Next.js for the frontend and Node.js/Express for the API layer. The role-based access control system supports 6 predefined roles with granular permissions, plus custom role creation for enterprise clients. Real-time project dashboards use WebSockets for live updates on milestones, budget tracking, and resource allocation.

PDF Engine & Reporting (Weeks 6-10)

We developed a custom PDF generation engine using Puppeteer and React-PDF that produces professional-quality progress reports, inspection checklists, and change orders branded with each tenant's identity. Templates are configurable per tenant, and reports can be scheduled for automatic generation and email delivery to stakeholders.

Admin Portal & Scaling (Weeks 9-12)

We built a super-admin portal for the client's operations team to manage tenants, monitor usage metrics, handle billing integration (Stripe), and provide support. The platform was deployed on AWS with auto-scaling groups, achieving a per-tenant infrastructure cost under $12/month — enabling aggressive pricing.

Solution Highlights

Multi-tenant architecture with sub-48-hour deployment per customer

Custom PDF engine generating 60+ template variations for progress reports

Role-based access supporting 6 roles with granular construction-specific permissions

Per-tenant infrastructure cost under $12/month enabling profitable pricing at $49/seat

Results & Impact

Onboarded 60+ construction companies within 6 months of launch, each deployed in under 48 hours with custom branding and domains.
Platform tracking over 12,000 active construction projects with real-time milestone and budget monitoring.
Automated report generation saves an average of 8 hours per project manager per week — roughly 50% of previous admin time.
Per-tenant infrastructure cost held under $12/month even at scale, enabling 78% gross margins on the $49/seat pricing.
Client satisfaction score of 4.7/5 based on post-deployment surveys, with churn rate under 3% monthly.
The white-label capability became the primary sales differentiator — 40% of tenants chose Buildora specifically because they could brand it as their own.

"Inventiple turned our rough prototype into a product that construction companies actually love using. The multi-tenant architecture means we can onboard a new customer before lunch, and the PDF engine alone has become our most-requested feature. Our investors are thrilled with the unit economics."

D

Daniel Krause

Founder & CEO