AI-native
delivery
AI in the loop from spec to ship: generation, review, refactors, tests, docs. Faster than agencies built before the AI era, without the brittleness vibe coding leaves behind.
Product engineering for PropTech and Real Estate teams
Build the listings, the agent CRM, and the integrations brokers actually use.
Listings + search, agent CRMs, lead capture, e-signature, mortgage and MLS integrations. The software the brokerage runs on, built to scale beyond the franchise template. Senior team, one subscription, pause any time.
From listings to closings, the PropTech surfaces we ship
Listings & SearchAgent CRMLead Capture & RoutingDocument e-SignatureProperty ManagementMortgage Tech IntegrationsMulti-tenant BrokeragesMLS IntegrationsListings & SearchAgent CRMLead Capture & RoutingDocument e-SignatureProperty ManagementMortgage Tech IntegrationsMulti-tenant BrokeragesMLS Integrations
Services
From brand to backend, one team.
Stacklane covers product engineering, design, motion, and brand work. One subscription, one cadence, one invoice.
Three ways to ship software today. Stacklane is the fourth.
In-house hiring
Months of recruiting, then onboarding, then attrition. By the time the team ships, the market has moved.
We start this week, AI-native, production-grade.
Freelancers & marketplaces
Quality varies. No ownership. They disappear mid-project, and the next one inherits a brittle codebase.
We own delivery, not just tasks.
Vibe-coding studios + legacy agencies
Vibe coders ship demoware that breaks in production. Legacy agencies bill hours and pretend AI doesn't exist.
AI speed, senior judgment, real software.
You focus on growth. We ship real software.
PropTech surfaces
The patterns we ship for PropTech teams
PropTech software lives between four constituencies (agents, buyers, sellers, brokerage ops) and every transaction touches all four. Here are the patterns we've shipped before.
01
Listings + faceted search
Map + list views, saved searches, alerts. Elasticsearch or Typesense underneath, debounced filters, indexable detail pages for SEO.
02
Agent CRM + lead routing
Round-robin or scoring-based routing, activity timelines, SMS + email follow-up, calendar integrations. The CRM agents actually log into.
03
Document e-signature flows
DocuSign, Dropbox Sign, or custom. Field positioning, signing order, audit trail, status webhooks. The closing without the printer.
04
MLS + IDX integrations
RETS, RESO Web API, MLS-specific syndication feeds. Normalised into one schema, refreshed continuously, search-ready.
05
Mortgage tech integrations
Lender APIs, rate engines, pre-approval flows, AUS submission. The mortgage half of the transaction wired in.
06
Operator console
Listings, agents, transactions, commissions, payouts. The internal software the brokerage owner actually runs the business from.
How it works
From listing to closing, software at every step
We ship the surfaces agents log into every day plus the integrations the back office runs on.
01
Book a call
We discuss your goals, timeline, and technical needs to see if Stacklane is a good fit.
02
Subscribe & onboard
Start with a monthly subscription. We onboard quickly and integrate with your team and tools.
03
Build & ship
We work from a shared task list and deliver progress daily, with clear communication throughout.
04
Scale or pause anytime
Need more speed or less capacity? Adjust, pause, or cancel, no long-term contracts.
01
Book a call
We discuss your goals, timeline, and technical needs to see if Stacklane is a good fit.
02
Subscribe & onboard
Start with a monthly subscription. We onboard quickly and integrate with your team and tools.
03
Build & ship
We work from a shared task list and deliver progress daily, with clear communication throughout.
04
Scale or pause anytime
Need more speed or less capacity? Adjust, pause, or cancel, no long-term contracts.
Featured Work
Recent work, shipped in weeks.
Four featured projects Stacklane delivered on subscription. Engineering, design, and brand on one cadence, with no internal hires required.
Our benefits for PropTech
Brokerage software the agents actually adopt.
Engineering that moves on listings, leads, and closings at the cadence brokerages need.
Production
grade
Architected, reviewed, tested, owned. Real software you can keep. Not demoware, not prototype code that ships, not unreviewed AI output sent to your customers.
Daily
shipping
Features land every working day, not at quarter-end. Continuous progress visible in your repo, not in a slide deck. Pause with 7 days notice.
End-to-end
ownership
Accountable for what ships, not what gets coded. Discovery, design, build, deploy, maintain. One subscription, one team that owns the outcome.
Our Pricing
Engineering is the anchor. Design is an add-on.
One subscription for delivery. Add Product Design when the UI needs the same craft as the system underneath.
- Full-Stack Web Development
- Mobile Apps (iOS & Android)
- Backend, APIs & Infrastructure
- Technical Consulting & DevOps
Pause or cancel anytime
Product Design
€4,000/ month
Brand, product, motion, and everything between.
Book a Free CallAll-in
€8,000/ month
Design and engineering on one cadence. No handoff drift.
Book a Free Call“Stacklane is one of the best engineering teams we’ve worked with. We’ve thrown every kind of project at them and they deliver every time.”
Fast, clean, and they understand the startup and business ecosystem beyond engineering.
Ryan SchneiderCEO, Paragon Group
Already a client?Refer one and earn 10% every month
Questions & answers
Frequently Asked Questions
01
How fast will I receive results?
We usually start the same day after onboarding. You'll see progress daily and weekly, with features and improvements delivered continuously based on your backlog and priorities.
02
Who will work on my product?
Senior engineers, 8+ years in production, with AI in the loop end-to-end. We use the AI tooling, we own the architecture, and we sign the review on every PR. Stacklane takes full responsibility for engineering delivery.
03
Is there a limit to how many requests I can make?
No, you can submit as many requests as you want.
04
How do you handle larger requests or features?
Large features are broken down into smaller milestones and delivered step by step. You always see progress and can adjust priorities as we go.
05
Can agencies use this as a white-label solution?
Yes. Agencies can work with Stacklane as a technical partner and offer our engineering services under their own brand if desired.
06
What if I only have a single request or small project?
We also offer one-off projects with fixed pricing. If you don't need ongoing development, a one-off project may be a better fit.
07
What if I don't like the result?
We work closely with you and iterate based on feedback. Our goal is to build software that fits your needs, not just deliver code.
08
Are there any requests you don't support?
We focus on software development and product design. We are not a good fit for simple marketing websites, very small design-only tasks or non-software services. If you're unsure, we'll help you determine fit during the discovery call.
09
How do we communicate and request work?
You submit requests through a shared backlog or project board. We communicate through tools like Slack, email, and regular check-ins.
10
How does pricing work?
Stacklane works on a flat monthly subscription: predictable pricing, no hidden fees, no long-term contracts. You can scale up, pause, or cancel at any time.
11
Are there any refunds?
We don't refund time already worked. Pause or cancel any time to avoid future charges; both take effect from the next billing cycle.
Discovery Call
Book a Free CallLet's ship the agent CRM and the listings stack.
Stacklane builds listings, agent CRMs, lead routing, e-signature, and mortgage + MLS integrations on one continuous cadence.
Patterns we ship