Real estate software development for custom proptech solutions
Vention is a custom software development company with 20+ years of experience building real estate and proptech platforms, including AI-powered leasing assistants, smart building infrastructure, resident experience apps, property management systems, and IoT-enabled building operations. Our teams have developed software for AI leasing platform EliseAI, IoT-enabled building management system Infogrid, virtual concierge platform Carson Living, and resident experience leader BuildingLink.
What engagement scenarios for real estate software development does Vention support?
Scenario
Your challenge
Vention’s role
Vention’s relevant experience
Scale your proptech engineering team
As your platform grows, internal teams struggle to keep pace with integrations, tenant growth, compliance updates, mobile releases, and infrastructure demands across high-load property operations.
Vention provides engineers with a deep understanding of proptech specifics, including multi-tenant architectures, property data models, and hardware integration. We share candidate CVs within 24 hours and ramp up with 30 days' notice if your project requires further scaling.
During a 10-year partnership with BuildingLink, Vention scaled from 2 to 45 engineers and helped support software used by 2M+ residents globally across mobile apps, concierge systems, and resident operations platforms.
Build your proptech product
Off-the-shelf property software doesn’t fully align with your unique requirements, such as multi-party models, specific asset types, or legacy integrations. You’re planning to build a custom real estate solution based on a validated concept or prototype.
Vention helps you build a custom real estate solution from scratch or scale your MVP. Our end-to-end delivery covers architecture design, full-stack engineering, and integrations (with your real estate ecosystem, external services, and hardware).
For EliseAI, Vention helped develop an AI leasing assistant that automated up to 90% of leasing workflows and contributed to a 125% conversion increase. The company later achieved unicorn status.
Another example: With Vention, UK property marketplace Boomin launched in 9 months using a scalable microservices architecture.
Modernize your property platform
Your proptech software was built years ago. Now, its constraints are starting to hurt: current performance is unstable, and new feature delivery is painful. Business is also pushing for modern UX and capabilities.
Vention’s phased approach focuses on modernizing legacy real estate platforms without disrupting live operations.
Our teams support migration to up-to-date tech stacks or more efficient architectures. We can also add new capabilities (mobile apps, IoT integration, AI-powered features) to existing proptech platforms.
For Carson Living, Vention re-architected legacy APIs, introduced scalable backend infrastructure, integrated hardware systems including cameras and smart locks, and supported a platform used across 900+ residential buildings.
Custom real estate solutions Vention develops
Solution type
What you get
How Vention delivered in similar cases
Smart building IoT and hardware integration solutions
- Integration of property platforms with physical building infrastructure (e.g., cameras, access control systems, sensors, keyless entry, wearables) through stable APIs
- Real-time dashboards that provide visibility into device status, usage patterns, and operational alerts across properties
- Centralized device management to configure, monitor, and control assets at scale across buildings and portfolios
- Carson Living: Hardware integrations across cameras, smart locks, wearable devices, and payment systems for a platform supporting 900+ residential buildings
- Infogrid: IoT-enabled building management system with sensor integrations, analytical dashboards, configurable alerts, and AWS-backed infrastructure
AI-powered real estate platforms
- AI leasing assistants, automated communication workflows, lead qualifications, property recommendations, workflow automation, conversational AI, and AI-assisted engineering workflows for complex proptech environments.
- For EliseAI, we developed an AI leasing assistant that automated up to 90% of leasing workflows, resulting in a 125% increase in conversion rates.
- For Carson Living, we used AI to support architecture decisions, documentation, and knowledge sharing across a complex ecosystem of mobile apps, APIs, smart locks, cameras, wearables, and payment systems, creating a dynamic engineering "second brain" that preserved context and accelerated software delivery.
Data and analytics platforms for real estate
- A centralized data layer that unifies property, financial, and building data across systems
- A single source of truth for asset managers, investors, and operators
- Real-time analytics, including property price indices and investment dashboards
- Predictive models for property valuation and portfolio performance
- For Bowery, Vention automated the commercial appraisal process and financial report generation, integrated an assets database for housing comparison, and added a Chrome extension for market data collection.
- For Infogrid, we built data lakes and ETL pipelines, reducing data processing costs by 25%.
Property management and tenant platforms
End-to-end property management software development for:
- Rent collection
- Lease administration
- Maintenance management
- Tenant communication
- Amenity booking
- Maintenance scheduling, communication tools, and events management for BuildingLink
- Tenant–manager communication for Carson Living
- Furnished rental property management, CI/CD automation, AWS optimization, payment pipelines for upsells for Minty Living
Real estate marketplaces
End-to-end delivery of platforms connecting property stakeholders, including
- Marketplace architecture
- Advanced search and filtering
- Transaction workflows
- Compliance integration
- Mobile apps
- Property marketplace for Boomin
Why Vention for real estate software development?
Hundreds of property management platforms, resident experience apps, smart buildings, AI leasing assistants, and real estate marketplaces built over 20+ years
Engineers with expertise in AI, IoT, MLS/PMS integrations, Salesforce, Stripe, GraphQL, AWS, Kubernetes, Terraform, real-time analytics, and multi-tenant architectures
Experience building software aligned with RESPA, Fair Housing Act, GDPR, CCPA, SOC 2, and financial data security requirements
ISO 27001-certified information security practices across engineering, infrastructure, and operations
Partnership with Vention contributes to funding growth and unicorn-level valuations
Vention helps proptech companies build scalable platforms that support product growth, investor confidence, and long-term market expansion. Our engineering teams have partnered with clients through major funding milestones, from Series A rounds to unicorn valuations.
Business milestone achieved
Vention’s project
Unicorn status with $1B+ valuation
EliseAI
$250M raised
Convene
$75M Series D raised
EliseAI
$15.5M Series A raised
Infogrid
Proven delivery of IoT and hardware integration
Vention delivers proptech software development services spanning both digital property operations and smart building infrastructure, integrating technologies such as smart locks, access control systems, sensors, cameras, wearables, and building analytics platforms.
Integrated hardware
Vention’s project
Keyless locks, cameras, wearables, and access control systems
Carson Living
IoT building sensors
Infogrid
IoT sensors, KeyLink® for secure key management
BuildingLink
AI to power real estate solutions
Custom real estate software with AI-driven features helps automate operations, enhance decision-making, and deliver more responsive user experiences across the property lifecycle.
An AI-powered leasing assistant that Vention helped deliver to EliseAI is trusted by 300+ property management companies, including Greystar. AI-driven automation increased prospect-to-tour conversions by 125% and automated up to 90% of lease-related workload.
Engineering scale for property platforms
Vention provides dedicated proptech engineering teams that scale alongside product growth, platform complexity, and expanding user bases. Our teams have supported long-term platform evolution across property management, smart building, workplace, and marketplace solutions.
Vention’s team size
Project
45
BuildingLink
25
Convene
21
Infogrid
18
Bowery
16
Boomin
14
Carson Living
Peace of mind that builds better real estate software
Vention helps real estate leaders and proptech innovators move faster, scale smarter, and stay ahead in a shifting market. Our Peace of Mind Promise means we plan and build software with reliability, growth, and stability in mind.
Proptech software development case studies
Client reviews about Vention’s real estate software development services
Jerry Kestenbaum
Founder and CEO
Vention–BuildingLink partnership
"We started with a team of two people and are now up to 13 engineers... the depth of talent and expertise they possess, and the caliber of project management... brisk progress on all five concurrent projects."
Guy Blachman
CEO
Vention–Carson Living partnership that covers iOS and Android real estate app development and integration with property management hardware.
"The product is very successful and their work has been outstanding. We treat them as an integral part of our organization."
Graeme Lindsay
Head of Engineering
Vention–Infogrid partnership that covers IoT integration, legacy systems consolidation, and data pipeline reimplementation.
"I was impressed with their creativity and desire to remain competitive when our business looked towards an offshoring strategy."
Joe O'Connell
VP of Product
Partnership with a B2C concierge startup that involved React Native and Python-based development.
"We were attracted to their expertise in the real estate industry specifically. The partner's API contributed to 20% of our revenue growth. Vention has been instrumental for those partnerships."
Martin Forest
CTO
Vention–BeON Home partnership around mobile app development related to home security.
"Vention can scale with us as we grow, and they can do it fast."
Measurable gains of proptech companies working with Vention
Aspect
Metric
Project
Maximum longevity of the cooperation
10-year partnership
BuildingLink
Scaling record
From 2 to 45 engineers
BuildingLink
Users supported with a real estate solution
2M+ residents
BuildingLink
Operational scale
The platform supports operations across 49 out of 50 US states
TheGuarantors
Funding raised
$250M+ raised
Convene
Funding raised
£12.9M / $15.5M Series A
Infogrid
Valuation achieved
$1B+ (unicorn)
EliseAI
Product launch speed
9 months from zero to launch
Boomin
Product launch speed
8 months (software aspect of the new flagship product)
Infogrid
Efficiency gain
125% prospect-to-tour conversion boost
EliseAI
Efficiency gain
90% workload automated through AI-powered leasing
EliseAI
Efficiency gain
80% of existing code optimized
Infogrid
Efficiency gain
60% system performance increase
Infogrid
Efficiency gain
25% data processing cost reduction
Infogrid
Insights from Vention’s expert
Many property management teams are under pressure to respond to prospects faster while handling growing inquiry volumes with the same operational capacity.
Manual leasing workflows make that difficult to sustain at scale, especially when responsiveness directly impacts conversion rates. In projects like EliseAI, we’ve seen the strongest results come from embedding AI directly into day-to-day leasing operations.
The platform now supports 300+ property management companies, increased prospect-to-tour conversions by 125%, and automated up to 90% of lease-related workloads."
Karen Pormento-Yu
Business Development Manager
The tech stack opening doors to new real estate experiences
Backend
Python
Django
Node.js
Nest.js
Express
Java
Spring Boot
.NET
PHP
Laravel
Frontend
React
Redux
Angular
Vue
TypeScript
Mobile
Swift
Kotlin
React Native
Cordova
IoT and hardware
AWS IoT (device connectivity and management)
Bluetooth Low Energy (device communication)
WebRTC (real-time video and audio streaming)
Twilio (communications APIs)
Comelit
ButterflyMX and Eagle Eye Networks (building and access control systems)
custom IoT sensor integrations.
Data and analytics
Apache Spark
DataBricks
PostgreSQL
MongoDB
Redis
Elasticsearch
TensorFlow
DevOps
Docker
Kubernetes
Terraform
Jenkins
GitHub Actions
GitLab CI
Integrations
Stripe
Salesforce
MLS/IDX
PMS systems
payment gateways
property accounting systems
insurance vendors (MSI, Covie)
GraphQL APIs
Architecture
Microservices
multi-tenant, event-driven
serverless
FAQs
Does Vention have experience building proptech platforms?
Yes. Vention has built and scaled property management platforms, real estate marketplaces, smart building systems, investment platforms, renters' insurance software, and AI-powered leasing solutions. Examples include:
- Property management software supporting 2M+ residents globally (BuildingLink)
- Commercial real estate platform that raised $250M+ in funding (Convene)
- AI leasing assistant that contributed to a 125% conversion increase and unicorn valuation (EliseAI)
- IoT-enabled building management platform that raised $15.5M in Series A funding (Infogrid)
- Property management platform integrated with hardware and access-control systems (Carson Living)
- Property marketplace launched in nine months (Boomin)
- Renters' insurance platform operating across 49 US states (TheGuarantors)
Can Vention integrate property platforms with building hardware (cameras, locks, sensors)?
Yes. Vention delivers production-grade IoT and hardware integrations for proptech platforms. Our teams have integrated smart locks, cameras, wearables, access-control systems, payment infrastructure, and custom IoT sensors into real estate software.
For Carson Living, Vention integrated keyless entry systems, cameras, wearables, and access-control technology. For Infogrid, we built connections between IoT sensors, building analytics platforms, and operational dashboards to support smarter building management.
Can you build a real estate marketplace or property platform from scratch?
Yes. Vention supports proptech companies from product discovery through architecture, development, integrations, launch, and long-term scaling. For Boomin, we developed a property marketplace from concept to public launch in nine months. For EliseAI, we helped scale an AI-powered leasing platform now trusted by hundreds of property management companies.
How quickly can you assemble a proptech engineering team?
Vention shares candidate CVs within 24 hours, allowing you to quickly assess both technical fit and alignment with your team. As your needs evolve, our scaling process allows us to add the required specialists with 30 days’ notice, helping maintain delivery speed and momentum. For proptech engagements, we've scaled teams from two to 45 engineers (BuildingLink) while maintaining full integration with client workflows.
What property management systems and integrations has Vention worked with?
Vention has integrated a wide range of systems commonly used in proptech environments, covering both software platforms and physical infrastructure.
- Data and core systems: MLS data feeds, PMS platforms, and property accounting systems.
- Business and operations: Salesforce CRM, Stripe and custom payment gateways, and insurance providers such as MSI and Covie.
- Communications and IoT: Twilio for messaging and voice, AWS IoT services for device connectivity.
- Hardware and building systems: Comelit, ButterflyMX, and Eagle Eye Networks, supporting access control, video, and on-site device integrations.
Can Vention modernize a legacy property management platform without disrupting operations?
Yes. We've decomposed a monolithic architecture into microservices to modernize TheGuarantors’ legacy system. Our teams migrated proptech platforms from legacy to up-to-date technologies (e.g., AngularJS to React and Angular), re-architected APIs for traffic spikes, and added IoT capabilities. Our phased approach allows migrating without disrupting the platforms’ active use by property managers and residents.
Do you have experience with real estate regulatory compliance?
Vention develops software aligned with real estate and financial compliance requirements, including RESPA, Fair Housing Act, GDPR, CCPA, PCI DSS, and SOC 2.
Our teams build systems with secure data storage, access controls, auditability, and compliance-focused workflows. TheGuarantors' renters' insurance platform, for example, operates across 49 US states, each with its own regulatory requirements.