Real Estate Software Development Services by Alpha Expansion
PropTech Engineering01Property search portals02MLS data integration03Property management platformsBook a call

Real Estate Software Development Services

Listings, leads and leasesin one platform

We build software for brokerages, property managers and proptech startups, from listing search portals with MLS data and maps to agent CRMs, tenant portals and transaction management tools.

Property search portalsMLS data integrationProperty management platforms

What we build

01Property search portals

02MLS data integration

03Property management platforms

01Our Approach

We start every real estate build with the listing data, because search, maps, alerts and CRM all depend on feeds that stay accurate.

02Overview

Software shaped around how property is transacted

  • 01Property search portals
  • 02MLS data integration
  • 03Property management platforms

Real estate software has its own hard parts, including listing feeds from MLS providers with licensing rules, map search over large inventories, documents that need signatures, and rent that must be collected and reconciled. We build property search platforms, agent and brokerage CRMs, landlord and tenant portals, commercial deal and investor reporting tools, and mobile apps agents can use on site.

Custom development makes sense when an off-the-shelf portal or CRM cannot reflect your workflow, your data or your brand, or when you are building a product to sell to the industry. We begin with data sources and integrations, since feed access and licensing shape what is possible, then design the experience for the agents, tenants, buyers or investors who will use it daily.

Talk to us about your project
03What We Do

Capabilities, End to End

01
MLS and listing data

Integration with MLS and IDX feeds through the RESO Web API, with normalization, deduplication, media handling and scheduled synchronization so listings stay current and within licensing terms.

02
Map-based search

Search by drawn area, neighborhood, commute or school zone using Mapbox or Google Maps with PostGIS queries, plus saved searches and alerts when matching listings appear.

03
Agent and brokerage CRM

Lead capture, routing rules, pipeline stages, follow-up reminders and activity history built around real estate workflows, connected to listing inquiries and your marketing channels.

04
Property management portals

Landlord and tenant portals for leases, online rent collection, maintenance requests, notices and document storage, with ledgers that your accounting team can reconcile.

05
Transactions and e-signature

Deal checklists, document generation, task assignment and electronic signing through DocuSign or Dropbox Sign, giving agents, buyers and coordinators one place to track a transaction.

06
Tours and visualization

Embedded Matterport tours, custom panoramic viewers, floor plans and 3D visualization of unbuilt projects, so remote buyers can assess a property before arranging a visit.

04In Production

What It Looks Like When It Ships

app.keystone.io/overview
Live
Keystone
Listings / Active
Search...
⌘K
MC
WORKSPACE
Listings
Leads
Viewings
Offers
MORE
Owners
Reports
Settings
Usage
72% of plan
Search...
⌘K
New
MT
Marina Tower 12B
2 bed - 118 m2
Viewing
PV
Palm Villa 7
4 bed - 320 m2
Offer
DL
Downtown Loft 3
1 bed - 74 m2
Listed
HH
Hillside House 22
3 bed - 210 m2
Under offer
MT
Marina Tower 12B
2 bed - 118 m2 - $640,000
Viewing
Listings
428
Viewings
96
Avg. days listed
18
Timeline
Offer received - Palm Villa 7
5m ago
Viewing booked - 12B
27m ago
Valuation complete
2h ago
Schedule viewing
Message
Export
Property search portals
MLS data integration
Property management platforms
Map searchListing syncLead routingTenant portal
05What You Receive

Handed Over, Ready to Run

SCROLL
01
Production web platform or portal
02
MLS feed integration and sync jobs
03
Map search with saved alerts
04
CRM pipelines and lead routing
05
Rent payment and ledger module
06
E-signature and document workflows
07
Admin console and reporting dashboards
08
Source code, documentation and full access
06How It Runs

From Kickoff to Launch

01
Data and access
02
Workflow design
03
Build and integrate
04
Roll out
01
Data and access

We confirm which MLS boards, feeds and third-party systems are involved, what their licenses allow and how data will be refreshed. Feed access can take time to arrange, so it starts first.

02
Workflow design

We sit with agents, managers or tenants to map their real workflow, then design search, pipeline and portal screens around it. Prototypes are reviewed by the people who will use them.

03
Build and integrate

We build the platform in increments, starting with listing ingestion and search, then CRM, payments and documents. Each integration is tested against sandbox accounts and real sample data before it is switched on.

04
Roll out

We migrate existing contacts, listings and leases, train your staff, launch to a pilot office or portfolio and then widen access. Feed health and payment activity are monitored from the first day.

07Technology

The Stack We Use

ApplicationNext.jsReactTypeScriptNode.jsReact NativeListing dataRESO Web APISpark APIBridge APIMLS GridApplicationNext.jsReactTypeScriptNode.jsReact NativeListing dataRESO Web APISpark APIBridge APIMLS Grid
GeodataPostgreSQLPostGISMapboxGoogle Maps PlatformServicesStripeDocuSignDropbox SignMatterport SDKAWSGeodataPostgreSQLPostGISMapboxGoogle Maps PlatformServicesStripeDocuSignDropbox SignMatterport SDKAWS
08Who It Is For

Built for Teams Like Yours

FLAGSHIP
Your brokerage runs on tools that do not connect

Listings sit in one system, leads in another and documents in email. Agents retype data, managers cannot see the pipeline and your website looks like every other portal. You want one platform built around your process, with your listings, brand and customer relationships under your control.

Consumer property search portals
Agent and brokerage CRMs
Rental and property management
Commercial deal and investor tools
Offline-capable agent mobile apps
Valuation and market analytics
09Questions

What buyers ask before they start

If yours is not here, ask us directly. The first conversation is free and useful whether or not we work together.

Book a call

Yes. We integrate through the RESO Web API or the access method your MLS provides, and we can work with aggregators when you cover several boards. Access itself is granted by each MLS to a licensed participant, so you or your broker of record apply for the credentials and we handle the technical side, including display rules, attribution, refresh frequency and removal of expired listings.

Buy if a standard product matches how your team works, because it will be cheaper and quicker to adopt. Build when your process is a competitive advantage, when you need the CRM tied closely to your own listings, website and transaction tools, or when per-seat licensing no longer makes sense at your size. A middle path is a custom layer on top of an existing CRM.

Payments run through an established provider such as Stripe, so card and bank details are entered into its secure components and are not stored in your platform. We keep a ledger of charges, payments and fees that reconciles against provider records. Access is restricted by role, sensitive fields are encrypted, and actions are logged. The design supports your PCI DSS and data protection obligations.

Yes. For agents who spend the day at showings, we build mobile apps with React Native or native code that store assigned listings, contacts and notes on the device. They can look up details, log a visit or capture a lead with no signal, and the app synchronizes when the connection returns, resolving conflicts by defined rules. Web portals are also designed to work well on phones.

We can, with honest limits. Using your transaction history, listing data and public records, we build comparables tools, price trend dashboards and estimate models, and we show the confidence range next to any estimate. Model quality depends on how much local data is available, so we test accuracy against known sales before anything is shown to users. An automated estimate should support an agent's judgment, not replace it.

10Related services

Often built together

ReadytoBuildSomethingExceptional?

Every engagement starts with a scoping conversation. It is free, structured, and useful whether or not we work together.

Response within 24 hoursFree consultation & scopingNDA available on request

Premium digital product and engineering studio. We build high-performance web platforms, SaaS applications, mobile apps, and 3D experiences for high-growth companies.

Alpha Expansion is a premium digital product and engineering studio specializing in React development, Next.js development, full-stack development, mobile app development, UI/UX design, and 3D interactive experiences.

We serve industries including SaaS, FinTech, Healthcare, E-commerce, Logistics, and Real Estate.