SaaS Development
SaaS Development for Real Estate, Proptech and B2B Products
SaaS development is the design and build of a subscription software product that many customers use from one shared platform, each with their own data, users and settings.
We work with real estate and proptech companies and with B2B software teams in the US and Canada who need a production-grade platform: either a new product built on an architecture that will scale, or an existing MVP that is starting to break under real customers.
Peregrine delivers the whole platform: multi-tenant data model, authentication and roles, billing, the integrations your customers expect, and the infrastructure to run it.
At a glance
SaaS Development at a Glance
| What's delivered | Multi-tenant platform: data model, authentication and roles, billing, search, admin and reporting, integrations and cloud infrastructure |
|---|---|
| Timeline | Typical MVP 4 to 6 weeks; complex platforms 8 to 12 weeks |
| Engagement model | Fixed-scope projects, monthly retainers, or a combination, agreed after the discovery call |
| How it starts | A 30-minute technical discovery call with an engineer |
| Pricing | Pricing is scoped per project after the discovery call. |
| Related case studies | Scaling a Real Estate SaaS Platform from 5 Agents to 200+; Self-Storage Management Platform with IoT-Powered Access Control; Recruitment ATS for Applicant Tracking & Hiring |
Fit
Is SaaS Development the Right Fit?
A good fit when
- You are building a subscription product that many customers will use from one platform, each with their own data, users and settings.
- An MVP works for the first customers and is starting to fail as accounts, data or traffic grow.
- Billing, roles, tenant isolation and integrations need to be designed together instead of added one at a time.
Probably not the right fit when
- An existing product meets the need with configuration. Buying is usually cheaper than building; our brokerage comparison shows how to weigh it: custom SaaS vs off-the-shelf CRM.
- You need a clickable prototype to test an idea with users. A design prototype or a no-code tool gets you there for less.
What we build
What Does Peregrine's SaaS Development Service Include?
Peregrine's SaaS development covers the whole platform: a multi-tenant data model, authentication and roles, Stripe billing, search over large datasets, admin and reporting tools, the integrations your customers expect, and the cloud infrastructure it runs on. We build new products and also take over existing MVPs that are starting to break under real customers.
Multi-tenant architecture
Tenant isolation designed in from the start: per-customer data scoping, configuration and roles, so one customer's settings or data can never leak into another's. When we rebuilt a real estate SaaS platform, shared flat collections were one of the reasons it could not grow past a handful of agents.
Shown in: Scaling a Real Estate SaaS Platform from 5 Agents to 200+
White-label and self-service products
Platforms where each customer gets their own branded experience, such as agent websites, career pages or tenant apps, all running from one codebase and one backend that you maintain once.
Billing and subscriptions
Stripe-based subscriptions, one-time purchases and usage billing, with webhook handling that keeps access, invoices and renewals in sync and retries failed payments instead of letting them fail silently.
Search and data-heavy features
Fast search over large datasets using Elasticsearch and Redis in front of the primary database, for listings, candidates, documents or inventory where users expect instant filtering and suggestions.
Admin, reporting and customer portals
The internal side of a SaaS business: admin consoles, usage and revenue dashboards, audit logs, and customer-facing portals with role-based access.
Industries: Real Estate & Proptech · Self-Storage · Logistics & Supply Chain · Healthcare & Insurance · HR, Payroll & Recruitment · E-Commerce, Marketplaces & Food Ordering · All industries
Timeline
How Long Does a SaaS Development Project Take?
A typical SaaS MVP from Peregrine ships in 4 to 6 weeks, covering core features, authentication, billing, multi-tenancy and deployment. Complex SaaS platforms with advanced integrations take 8 to 12 weeks. The discovery sprint sets the actual schedule, and development runs in two-week sprints with a demo every week.
Discovery and architecture
We audit the existing product or requirements, identify the scaling risks, and design the data model, tenancy strategy and infrastructure before writing features.
Core platform
Authentication, roles, tenancy, billing and the first product workflows, delivered in two-week sprints with a demo every week.
Integrations and hardening
Third-party integrations, background jobs with retry logic, load testing against realistic traffic, and monitoring.
Launch and migration
Phased rollout, usually a pilot group of customers first, with data migration from the old system and runbooks for your team.
Scope
What Determines the Scope of a SaaS Development Project?
These are the inputs that change the effort. None needs a final answer before the first call, but each one you can answer makes the estimate tighter.
- Tenancy model
- How isolated each customer's data must be, and whether tenants get their own configuration, branding or domain. This is the hardest decision to change later.
- Roles and permissions
- The number of roles, and whether customers define their own. Each role multiplies the screens and the access rules to test.
- Billing
- Flat plans are small. Usage-based pricing, trials, invoicing, tax handling and split payments between parties each add work.
- Integrations
- Every third-party system your customers expect on day one is its own piece of work, sized by the quality of that system's API.
- Data volume and search
- Whether users filter thousands of records or millions decides if a search index and a cache are needed beside the database.
- Mobile apps
- Native iOS and Android apps beside the web app add a second client to build, test and release.
- Compliance
- Requirements such as HIPAA or SOC 2 constrain hosting, logging, access control and how data is encrypted.
- Existing product
- Rebuilding while customers stay live means staged migration and running old and new side by side.
A sensible first phase
A sensible first phase fixes the data model, tenancy and roles, then delivers one workflow a real customer can use from sign-up to payment. Features are easy to add later; tenancy and billing are costly to change once customers are on the platform.
Cost
What Does SaaS Development Cost?
Peregrine works on SaaS development as fixed-scope projects, monthly retainers, or a combination, agreed after the discovery call. Cost depends on features, integrations, data volume and whether an existing product is being rebuilt, and we do not publish a price list. For sourced market figures, read our guide What It Costs to Build a Real Estate Platform.
What It Costs to Build a Real Estate Platform
What drives the cost of a real estate platform: developer rates in the US, Canada and India, MLS data fees, maps and hosting, with every figure sourced.
Read the guideTech Stack for a Real Estate Platform: Database, Search, Backend and Frontend Choices
How to choose the database, search engine, cache, backend language, frontend rendering, media storage and hosting for a real estate platform, with sources.
Read the guideCustom SaaS vs Off-the-Shelf CRM for Brokerages
When a brokerage should subscribe to a real estate CRM and when a custom platform makes sense, with published CRM pricing and the trade-offs of building.
Read the guideBuilding a Multi-Tenant Real Estate SaaS Platform
How to design tenancy for a real estate SaaS: tenant hierarchy, data isolation with row-level security, custom domains, per-tenant MLS licenses and lifecycle.
Read the guideReal Estate CRM Architecture: From Property Enquiry to Lead Management
How to design a real estate CRM: enquiry capture, attribution, deduplication, lead routing, an event timeline, consent records and integration boundaries.
Read the guideData Migration Strategies for Legacy Real Estate Platforms
How to migrate a legacy real estate platform: what to move or re-fetch, cutover strategies, validation, URL redirects, rollback planning and a cutover runbook.
Read the guideDesigning Reliable Background Jobs with Redis and BullMQ
How to run BullMQ on Redis in production: retries and backoff, concurrency, stalled jobs, idempotent handlers, Job Schedulers, Redis settings and failure modes.
Read the guideGetting started
How Does a SaaS Development Project Start?
A Peregrine SaaS Development project starts with a 30-minute technical discovery call with an engineer, not a salesperson. Larger builds then begin with a discovery sprint that maps requirements, designs the architecture and produces a written technical plan. Smaller, well-defined tasks can use the quick project form for a scoped estimate.
What to bring to the scoping call
- Who your customers are and what one customer account contains: users, data and settings.
- The three or four workflows the product cannot launch without.
- The pricing model you intend: plans, per seat, usage or a mix.
- The integrations customers will expect on day one.
- For an existing product: the stack, hosting, customer and record counts, and where it fails today.
- Any regulatory requirement, such as HIPAA or SOC 2.
Partial answers are fine. Whatever is missing becomes the first item on the call.
Case studies
Which Case Studies Show Peregrine's SaaS Development Work?
Three published case studies show Peregrine's SaaS development work: a real estate SaaS platform rebuilt with proper multi-tenant isolation that grew from 5 to 200+ agents, a multi-tenant self-storage platform with Stripe billing and smart-lock access, and a multi-tenant applicant tracking system with branded career pages and resume parsing.
Scaling a Real Estate SaaS Platform from 5 Agents to 200+
Rebuilt a white-label agent website platform on a three-layer data architecture (MongoDB, Elasticsearch, Redis) with proper multi-tenant isolation; the case study reports growth from 5 to 200+ agents.
Read the case studySelf-Storage Management Platform with IoT-Powered Access Control
A multi-tenant SaaS for self-storage operators combining reservations, Stripe billing and smart-lock access control behind one event-driven backend.
Read the case studyRecruitment ATS for Applicant Tracking & Hiring
A multi-tenant applicant tracking system with per-company pipelines, branded career pages, resume parsing and Elasticsearch candidate search.
Read the case studyStack
Technology We Use
Related services
Services Often Scoped With SaaS Development
FAQ
Frequently Asked Questions
What does multi-tenant mean for a SaaS product?
Multi-tenant means all of your customers run on one shared application and infrastructure, while each customer's data, users and settings stay isolated from the others. It keeps hosting and maintenance costs manageable because you deploy one platform, but the isolation has to be designed into the data model and the API from the beginning.
Can you take over and scale an existing SaaS MVP instead of starting over?
Yes. We start with a code and architecture audit to find what is actually limiting growth, which is often the data model, search or background jobs rather than hosting. Then we rebuild the parts that need it while the product stays live. Our real estate SaaS case study is an example of this approach.
How do you handle subscription billing?
We usually build on Stripe for subscriptions, one-time purchases and invoicing. The important part is the webhook handling: payment events update access, invoices and renewals automatically, and failed payments are retried and surfaced instead of being missed.
Can each of our customers have their own branding?
Yes. White-label platforms serve every customer from one codebase and one backend, while each customer gets its own theme, domain and content. Our real estate SaaS case study runs branded agent websites this way, and our ATS case study gives each company its own career pages.
Do you only build real estate software?
No. Real estate and proptech are a large share of our work, but our case studies also cover HR and payroll, recruitment, logistics, healthcare, education and e-commerce platforms. The multi-tenant patterns are the same across industries.
Who owns the IP rights to what Peregrine builds?
You do. Once the work is paid for, the client owns the intellectual property (IP) rights to what Peregrine builds for the project, whether it is delivered as a fixed-scope project, a monthly retainer or a combination of the two.
Questions about the team, contract models and how progress is shown are answered on the services page.
Technical consultation
Talk to an Engineer About SaaS Development
Tell us what you are building or fixing. Your first conversation is with an engineer, not a salesperson.
- A 30-minute technical discovery call with an engineer, not a salesperson.
- Fixed-scope projects, monthly retainers, or a combination, agreed after the call.
- Small, well-defined tasks get a scoped estimate. We reply within 1 business day.
Prefer to pick a time? Book a call on Calendly
