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Real EstateMulti-agentSubdomain architecture

Real Estate Brokerage Website Development

Brokerages running 50-500 agents on Placester, Real Geeks, or IDX Broker hit a wall at scale. We build agent-subdomain platforms on Next.js + Supabase that pass Core Web Vitals, rank locally, and let agents update their own pages without breaking the brokerage brand.

500+
Agents per platform
Proven scale
100/100
Lighthouse target
Beats Placester by 40%
40-70%
Faster LCP
vs template-IDX
$80K+
Fixed-fee platforms
50-150 agents
What is a brokerage website platform?

So here's what we're actually talking about when we say "real estate brokerage website platform" -- it's the technical system holding together your main brokerage site, every agent's sub-site, the MLS/IDX listing search, the lead-capture flow, and the editor experience that lets your brokerage team and each individual agent edit their own slice without nuking everything else. That's a lot of moving parts. At 50+ agents, you're facing a real fork in the road. You can go with a locked-in SaaS product -- Placester, Real Geeks, Sierra Interactive, BoomTown -- or you can build something custom on Next.js and Supabase with a proper IDX feed. Honestly, both paths make sense at different stages. SaaS gets you live in weeks. But it'll fight you every time you try to grow past the template. Here's the thing about custom builds: they're slower to launch -- sometimes by two or three months -- but they compound value in a way SaaS never will. Your SEO builds on your own domain. Your design isn't shared with 4,000 other brokerages. Your agents stay because the tools actually work. For brokerages past 100 agents, or anyone with serious brand requirements, custom wins on total cost of ownership, page performance, and -- this one surprises people -- agent retention. Agents notice when their site loads fast and looks good. They stay longer.

Your Current Site May Be a Liability

Common gaps we find in nearly every audit.

Look, Placester and Real Geeks aren't evil -- they're just built for speed-to-launch, not long-term performance
Risk: And that tradeoff shows up in your Lighthouse scores. We're talking scores in the 40s. Pretty consistently. And slow pages don't just frustrate buyers -- they tank your local pack rankings. Competitors with faster sites are outranking your listings on searches for your own listing addresses. That's the part that should sting.
This is a genuinely unsolvable problem inside most SaaS platforms
Risk: Either the platform locks everything down tight -- which looks great for brand consistency, but agents get frustrated and go build their own Wix sites -- or it opens everything up and you've got 87 different fonts and neon color schemes across your agent pages. Neither one scales past 50 agents without becoming a full-time brand enforcement job.
The IDX iframe situation is, honestly, one of the dirtiest secrets in real estate web development
Risk: That search widget? It's not part of your site. Search engines see an iframe from a third-party domain and they don't credit any of that listing content to you. So you end up ranking for your brokerage name and almost nothing else. All those listings, all that content -- it's building authority for someone else's domain.
Agent churn is relentless in this industry
Risk: And without the right tooling, every departure is a manual cleanup project. Their subsite, their bio, their phone number in the footer, their face on the team page -- all of it needs to come down. Miss one and you've got a former agent's contact form routing leads to someone who left six months ago. We've seen this exact scenario at a brokerage in Phoenix. It's a weekly fire, and it burns real hours.

What Your Website Could Look Like

Custom-designed for your industry. No templates. No stock photos.

Real estate brokerage website with MLS search, agent subdomain preview, and listing map
Brokerage platform — agent subdomains, MLS/IDX search, Lighthouse 100 listings

How We Build This Right

Every safeguard, built in from Day 1.

Agent Subdomain Routing

Here's how the subdomain routing actually works: agentname.brokerage.com resolves through Next.js middleware, which looks up the agent record and serves their page -- all within a shared design system, on the same domain, with shared authority. Edge-rendered. Sub-100ms response times. And because it's one codebase, a design update rolls out to every agent page at once, not one-by-one.

MLS Feed as First-Class Content

Instead of an iframe phoning home to a third-party IDX server, listings live in your own database -- pulled via the RESO Web API and indexed in Algolia or Typesense. Every listing page is rendered as part of your actual site. So when Google crawls a listing at 123 Main Street, Austin TX, it credits that content to your brokerage domain. That's the SEO compounding effect SaaS platforms structurally can't replicate.

Role-Based Agent Editing

Agents get a scoped admin panel where they can edit their bio, upload gallery photos, pin featured listings, and manage testimonials. But they can't touch the nav, the footer, or anything flagged as brand-locked. Supabase row-level security enforces those boundaries at the database layer -- it's not just a UI restriction. And every edit is audit-logged, so if something goes wrong, you can see exactly who changed what and roll it back.

Automated Agent Offboarding

One command. That's it. When an agent leaves, their subsite switches to a graceful farewell state, their URLs 301-redirect to the team page, and their listings reassign to the brokerage. No manual cleanup, no orphaned contact forms, no 2am Slack messages from the broker wondering why a former agent is still showing up in Google. The whole offboarding flow runs in seconds.

What We Build

Purpose-built features for your industry.

Agent Subsites

Every agent gets their own full site -- whether that's a subdomain like sarahjones.brokerage.com or a subpath like brokerage.com/agents/sarah-jones. Either way, it's a real site with a bio, active listings, testimonials, and a lead form. Sarah can customize her content. She can't break the brand. That boundary is enforced in code, not just policy.

MLS/IDX Listing Search

We connect to the RESO Web API where the MLS supports it -- and most modern ones do -- or to a mid-tier provider like FlexMLS for older systems. Listings get indexed in Algolia, which means search queries return in under 100ms. The search UI includes map view, filters, saved searches, and email alerts. Not a widget. An actual product.

Listing Landing Pages

Every listing gets its own shareable page -- not a generic template printout, but a real page with proper OpenGraph images so it looks great when an agent shares it in an iMessage or posts it to Instagram. Virtual tour embeds, neighborhood context, QR codes ready for open-house flyers. This is the stuff agents actually brag about to their clients.

Lead Routing to CRM

Follow Up Boss, Lofty, BoomTown -- we've integrated with all of them. Two-way sync means leads hit the right agent instantly, with full UTM and referrer attribution, and agents can see lead status updates without bouncing between five different tabs. The real kicker is that the brokerage admin dashboard shows the same data, so nothing falls through the cracks.

City + Neighborhood Pages

Programmatic SEO -- done right -- means the brokerage owns "homes for sale in [neighborhood]" searches across every market you serve. We build city-level and neighborhood-level landing pages that are actually useful, not just keyword-stuffed boilerplate. Done at scale, this is how a Dallas or Denver brokerage takes real organic market share from Zillow and Realtor.com over 18-24 months.

Mobile-First Design System

Buyers search on their phones. Agents text listing links from their phones. So every page is designed phone-first, not desktop-first with a responsive afterthought. And we enforce a performance budget in CI -- if a new feature push degrades LCP past the threshold, the build fails. No sneaking in a heavy carousel at 11pm.

Built on a Modern, Secure Stack

Next.jsSupabaseVercel EdgePayload CMSRESO Web APIMapboxTypeScript

Our Development Process

From discovery to launch. Quality at every step.

01

Brokerage Architecture Workshop

Week 1-2

Weeks one and two are about mapping reality before writing a single line of code. We document your current IDX feed, your CRM setup, your MLS provider, your actual agent count, and where you're planning to be in three years. You get an architecture doc, an integration plan, and a three-year cost model. Decisions made here save six figures later.

02

Design System + Agent Template

Week 3-4

Weeks three and four: design tokens for both the brokerage level and the agent level, a production-ready agent subsite template, and a listing detail page. Not mockups -- actual production code that the team can start stress-testing against real data.

03

MLS/IDX Integration

Week 5-7

Weeks five through seven are the integration sprint -- RESO Web API or FlexMLS/Spark depending on your MLS, Algolia indexing pipeline, image CDN setup, and the full listing search experience with filters and map. This is usually where the fun arguments happen about map clustering algorithms.

04

CMS + Agent Admin

Week 8-10

Weeks eight through ten: the two-tier editor UI, scoped role-based access control, audit logging, the agent onboarding and offboarding flows, and CRM two-way sync. By the end of week ten, a brand-new agent can be onboarded -- full subsite live -- in under ten minutes.

05

Migration + Launch

Week 11-14

Weeks eleven through fourteen are migration and launch. We export content from Placester or whatever you're leaving, map every old URL to its new destination with proper 301s, run SEO validation, and watch the launch like hawks. Then there's 30 days of post-launch support -- because something always needs tuning after real agents start using a real product.

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Brokerage Platforms from $80,000

50-150 agents, fixed-fee. Enterprise tier for 500+. See pricing

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Frequently Asked Questions

Each agent gets agentname.brokerage.com -- their own page, their listings, their contact form -- while the whole thing runs on one codebase, one design system, one domain. Technically it's wildcard DNS with Next.js middleware resolving the subdomain to the agent's record in the database. Takes about 40 milliseconds. From an SEO standpoint, the main domain keeps compounding authority -- agent subdomains don't split it. That's a question we get a lot, and it's worth being clear about.
Yes, we can replace Real Geeks or Sierra Interactive. Those platforms solve the IDX-feed problem, but they trap you in slow, template-farmed pages that genuinely fail Core Web Vitals. We pull listings via the RESO Web API directly into a proper database, then render them edge-fast with full design control. Brokerages that have made this switch -- we're thinking of one in Nashville specifically -- typically see 40-70% faster LCP and 2-3x better local rankings within 90 days of launch.
For 50-150 agents, fixed-fee projects typically run $80K-$220K. For 150-500 agents with complex MLS integrations, it's $180K-$500K depending on what we're connecting to. But here's the comparison that matters: hosting this stack runs $540-$2,400 per year at any scale. Placester-style platforms charge $2K-$8K per month. Over three years, the custom build is typically 50-70% lower total cost of ownership -- and you own the asset.
Yes -- agents get a full subdomain or subpath site they can actually customize. Bio, gallery, featured listings, testimonials, contact form -- all theirs. What they can't touch: brokerage branding, navigation, footer, legal disclaimers. That boundary is enforced at the database layer via Supabase RLS, not just hidden buttons in the UI. Every edit is audit-logged and reversible. And when an agent leaves, offboarding takes one command. No cleanup sprint.
Where the MLS supports it, we connect directly to the RESO Web API -- and most modern MLSes do. For older systems, we use a mid-tier provider: iHomeFinder, FlexMLS, or Spark depending on what's available in your market. Listings sync every 15 minutes, images get cached at the CDN edge, and search runs on Algolia or Typesense for sub-100ms queries. It's not a widget. It's an actual search product.
Here's what the SEO setup actually looks like in practice: per-agent LocalBusiness schema, RealEstateAgent and RealEstateListing schema on every relevant page, city-level and neighborhood-level landing pages for both the brokerage and each agent's primary markets, GBP API integration for reviews, and programmatic neighborhood content templates built to scale. This is how a brokerage in a market like Charlotte or Sacramento starts genuinely owning local search -- not just showing up.
Yes, CRM integration is standard. Lead capture forms route to your CRM via their API with full UTM and referrer attribution -- so you know exactly which page, which campaign, which agent link drove each lead. Two-way sync is available for Follow Up Boss and Lofty, meaning agents see lead status updates in the brokerage admin without logging into a separate system. Attribution doesn't get lost. That matters more than people realize until they've lost it.
This is honestly one of the biggest differentiators from a flat MLS feed. Every listing gets its own shareable landing page with proper OpenGraph imagery -- so when an agent texts a link to a buyer, it actually previews correctly. Virtual tour embeds, neighborhood context, a lead form, and one-click generation of per-listing QR codes for open-house flyers. Agents can spin up an open-house microsite or an email campaign from a single screen. That's the kind of thing that makes an agent tell their friends where they hang their license.
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