BuildTopia
A 100% cloud-based, single-source construction ERP built by Constellation HomeBuilder Systems — the largest provider of homebuilding software in North America. Designed from the ground up for regional and production homebuilders who need everything from sales CRM through warranty in one integrated system.
IBSWIN
A Windows desktop application — full name "Integrated Builder Series for Windows" — for production homebuilders running Sage 300 CRE (Timberline) or Sage 100 Contractor (Master Builder). IBSWIN has confirmed the product is being retired on December 31, 2026, and is directing customers toward a "guided platform review" for migration. For current users, this isn't a future risk to plan around — it's an active, dated wind-down already underway.
IBSWIN has confirmed the platform will be retired on December 31, 2026 — current customers are being asked to begin a "guided platform review" now.
Strengths and limitations
An honest assessment of what each platform does well — and where it falls short.
BuildTopia
Cloud-native construction ERP
BuilderMT
Legacy Windows desktop platform
Six reasons to make the switch
One system, zero silos
BuildTopia unifies sales, design, construction, and warranty in a single cloud platform — no stitching together separate CRM, scheduling, and warranty tools the way IBSWIN requires.
100+ releases per year
A builder-influenced product roadmap with the industry's largest development team means the software keeps pace with how your business evolves — no fixed retirement date on the horizon.
AI and benchmarking built in
Stella AI and BuilderMetrix give you AI-powered performance insights benchmarked against the broadest industry dataset in North America — capabilities that don't exist in a Windows desktop tool like IBSWIN.
Every stakeholder connected
Buyers, lenders, trades, supers, and office staff all work from the same real-time data — through role-based portals and mobile apps with offline capability, not a bolted-on web companion.
Maximize options revenue
The Design Studio Manager and Buyer Portal guide buyers through curated selections — proven to increase upgrade attach rates and boost revenue per home.
Move on your terms, not theirs
IBSWIN's own December 31, 2026 retirement date means every current customer is migrating regardless. Evaluate BuildTopia now and choose your next platform on your own terms — instead of defaulting to whatever the guided platform review points you toward.
Ready to see BuildTopia in action?
Book a personalized demo and discover how a true single-source ERP can simplify your entire build process — before the December 31, 2026 deadline forces a rushed decision.
IBSWIN information sourced directly from ibswin.com (including its December 31, 2026 retirement announcement) as observed in 2026. Where ibswin.com does not document a capability, it is marked “not publicly documented” rather than assumed absent. See the accompanying sources document for the full citation list and derivation notes. Features subject to change. Contact BuildTopia for the most current capabilities.

