New York Real Estate Web Platform Development
New York Real Estate Web Platform Development: In-House CMS & Dedicated AWS Infrastructure
New York Real Estate Web Platform Development: In-House CMS & Dedicated AWS Infrastructure
New York Real Estate Web Platform Development: In-House CMS & Dedicated AWS Infrastructure
Brightgrove built a custom AWS platform and in-house CMS for Leslie Garfield, ending vendor lock-in with same-day publishing and zero downtime.
Brightgrove built a custom AWS platform and in-house CMS for Leslie Garfield, ending vendor lock-in with same-day publishing and zero downtime.
Brightgrove built a custom AWS platform and in-house CMS for Leslie Garfield, ending vendor lock-in with same-day publishing and zero downtime.
Real Estate
AWS
Cloud
Client
Client
Leslie Garfield
Leslie Garfield
Leslie Garfield
Timelines
Timelines
2026
2026
2026
Role
Role
Development Partner
Development Partner
Development Partner
Website
Website
lesliegarfield.com
lesliegarfield.com
lesliegarfield.com
New York Real Estate Web Platform Development
New York Real Estate Web Platform Development
Client overview
Client overview
Client overview
Leslie Garfield is a long-established New York residential brokerage specializes in a high-value Manhattan and Brooklyn property niche. The firm, whose site was drawing ~30,000 monthly visits on a vendor-hosted whitelabel platform, runs its inventory through a professional listing-management platform and publishes a proprietary market-analytics index.
The engagement had to resolve key platform deficiencies while meeting strict operational migration requirements:
Leslie Garfield is a long-established New York residential brokerage specializes in a high-value Manhattan and Brooklyn property niche. The firm, whose site was drawing ~30,000 monthly visits on a vendor-hosted whitelabel platform, runs its inventory through a professional listing-management platform and publishes a proprietary market-analytics index.
The engagement had to resolve key platform deficiencies while meeting strict operational migration requirements:
Leslie Garfield is a long-established New York residential brokerage specializes in a high-value Manhattan and Brooklyn property niche. The firm, whose site was drawing ~30,000 monthly visits on a vendor-hosted whitelabel platform, runs its inventory through a professional listing-management platform and publishes a proprietary market-analytics index.
The engagement had to resolve key platform deficiencies while meeting strict operational migration requirements:
Challenge
Challenge
Challenge
The brokerage’s website was its principal digital distribution channel and the public face of the brand. Strategically, the company set out to make its site the definitive online destination for its market segment. The setup worked against that goal: the site was hosted and controlled by the listing vendor, so the brokerage did not own its code, data, or infrastructure. The engagement had to resolve key platform deficiencies while meeting strict operational migration requirements:
The brokerage’s website was its principal digital distribution channel and the public face of the brand. Strategically, the company set out to make its site the definitive online destination for its market segment. The setup worked against that goal: the site was hosted and controlled by the listing vendor, so the brokerage did not own its code, data, or infrastructure. The engagement had to resolve key platform deficiencies while meeting strict operational migration requirements:
• SEO-hostile URL structure. The system autoformatted property URLs from internal MLS numbers rather than property addresses, hurting search performance, looking unprofessional to a luxury audience, and creating conflicts between old and new listings.
• High-authority domain & migration risks. The site was an established, high-ranking domain that could not afford SEO losses or long downtime during migration. Historic listings, content, and the entire URL inventory had to migrate completely and verifiably.
• Fragmented content management. Content control was separated from listing management, requiring separate logins and offering limited editing capability. Changes to one page element could break others, and vendor requests were slow to implement.
• System instability. The client described the backend as “very unstable, very unreliable,” with unpredictable issues and vendor support response times of one to two weeks.
• SEO-hostile URL structure. The system autoformatted property URLs from internal MLS numbers rather than property addresses, hurting search performance, looking unprofessional to a luxury audience, and creating conflicts between old and new listings.
• High-authority domain & migration risks. The site was an established, high-ranking domain that could not afford SEO losses or long downtime during migration. Historic listings, content, and the entire URL inventory had to migrate completely and verifiably.
• Fragmented content management. Content control was separated from listing management, requiring separate logins and offering limited editing capability. Changes to one page element could break others, and vendor requests were slow to implement.
• System instability. The client described the backend as “very unstable, very unreliable,” with unpredictable issues and vendor support response times of one to two weeks.
• SEO-hostile URL structure. The system autoformatted property URLs from internal MLS numbers rather than property addresses, hurting search performance, looking unprofessional to a luxury audience, and creating conflicts between old and new listings.
• High-authority domain & migration risks. The site was an established, high-ranking domain that could not afford SEO losses or long downtime during migration. Historic listings, content, and the entire URL inventory had to migrate completely and verifiably.
• Fragmented content management. Content control was separated from listing management, requiring separate logins and offering limited editing capability. Changes to one page element could break others, and vendor requests were slow to implement.
• System instability. The client described the backend as “very unstable, very unreliable,” with unpredictable issues and vendor support response times of one to two weeks.
• Interface & workflow friction. Agents worked in a cluttered admin interface with irrelevant fields and confusing syndication controls. Crucially, their listing workflow had to remain untouched during the transition—requiring no retraining and no parallel data entry.
• Website redesign & dashboard relaunch. Replaced standard real estate listing layouts with a differentiated visual identity. We also redesigned and deployed the firm’s proprietary market-index dashboard, previously stalled for years, delivering an accessible, engaging data tool for users.
• Business continuity. Active sales operations and live traffic meant zero tolerance for migration downtime.
• Interface & workflow friction. Agents worked in a cluttered admin interface with irrelevant fields and confusing syndication controls. Crucially, their listing workflow had to remain untouched during the transition—requiring no retraining and no parallel data entry.
• Website redesign & dashboard relaunch. Replaced standard real estate listing layouts with a differentiated visual identity. We also redesigned and deployed the firm’s proprietary market-index dashboard, previously stalled for years, delivering an accessible, engaging data tool for users.
• Business continuity. Active sales operations and live traffic meant zero tolerance for migration downtime.
The cost of vendor lock-In
The cost of vendor lock-In
The cost of vendor lock-In
The brokerage could not resolve these issues independently. Every update—from URL structures to dashboard tweaks—depended entirely on the vendor’s approval, roadmap, and timeline. While the firm generated the traffic and brand equity, the vendor retained the underlying code, data, and IP. Consequently, every new page, listing, and backlink deepened vendor lock-in and escalated future switching costs.
The mandate was clear: rebuild the site on fully owned infrastructure without disrupting familiar agent workflows, established brand equity, search rankings, or live user traffic.
The brokerage could not resolve these issues independently. Every update—from URL structures to dashboard tweaks—depended entirely on the vendor’s approval, roadmap, and timeline. While the firm generated the traffic and brand equity, the vendor retained the underlying code, data, and IP. Consequently, every new page, listing, and backlink deepened vendor lock-in and escalated future switching costs.
The mandate was clear: rebuild the site on fully owned infrastructure without disrupting familiar agent workflows, established brand equity, search rankings, or live user traffic.
The brokerage could not resolve these issues independently. Every update—from URL structures to dashboard tweaks—depended entirely on the vendor’s approval, roadmap, and timeline. While the firm generated the traffic and brand equity, the vendor retained the underlying code, data, and IP. Consequently, every new page, listing, and backlink deepened vendor lock-in and escalated future switching costs.
The mandate was clear: rebuild the site on fully owned infrastructure without disrupting familiar agent workflows, established brand equity, search rankings, or live user traffic.
Solution
Solution
Solution
To resolve vendor lock-in and secure full asset ownership, we engineered a custom, enterprise-grade web platform deployed entirely within the client’s private cloud environment. Delivered across a 28-week phased engagement, the solution decoupled the public digital experience from the third-party listing provider via an integration layer—preserving existing agent workflows and search rankings while granting the brokerage full control over its data, codebase, and roadmap.
Project Team Structure:
• Solution Architect
• Senior Front-End Engineer
• Senior Back-End Engineer
• Middle Back-End Engineer
• QA Engineer
• Product/Project Manager
• SEO Specialist and Data Migration Specialist (phase specific)
• Design direction by the client’s external design studio; Brightgrove implemented the approved design system
To resolve vendor lock-in and secure full asset ownership, we engineered a custom, enterprise-grade web platform deployed entirely within the client’s private cloud environment. Delivered across a 28-week phased engagement, the solution decoupled the public digital experience from the third-party listing provider via an integration layer—preserving existing agent workflows and search rankings while granting the brokerage full control over its data, codebase, and roadmap.
Project Team Structure:
• Solution Architect
• Senior Front-End Engineer
• Senior Back-End Engineer
• Middle Back-End Engineer
• QA Engineer
• Product/Project Manager
• SEO Specialist and Data Migration Specialist (phase specific)
• Design direction by the client’s external design studio; Brightgrove implemented the approved design system
To resolve vendor lock-in and secure full asset ownership, we engineered a custom, enterprise-grade web platform deployed entirely within the client’s private cloud environment. Delivered across a 28-week phased engagement, the solution decoupled the public digital experience from the third-party listing provider via an integration layer—preserving existing agent workflows and search rankings while granting the brokerage full control over its data, codebase, and roadmap.
Project Team Structure:
• Solution Architect
• Senior Front-End Engineer
• Senior Back-End Engineer
• Middle Back-End Engineer
• QA Engineer
• Product/Project Manager
• SEO Specialist and Data Migration Specialist (phase specific)
• Design direction by the client’s external design studio; Brightgrove implemented the approved design system
Architecture & Deliverables
Architecture & Deliverables
This architecture preserved existing agent workflows and search rankings while granting the brokerage full control over its data, codebase, and editorial roadmap:
This architecture preserved existing agent workflows and search rankings while granting the brokerage full control over its data, codebase, and editorial roadmap:
Owned platform & infrastructure
.NET 9 + Angular 20 (SSR) + PostgreSQL platform deployed in the client’s own AWS account (EC2, RDS,
S3, CloudFront, Route53) - the brokerage owns code, data, and environment
Listing-platform integration
Middleware synchronization layer with duplicate protection (listings publish to the website with zero human involvement) agent workflow unchanged. The middleware decouples the website from the provider’s API, making the integration pattern portable to other listing platforms
Purpose-built CMS
Content management for articles, agents, neighborhoods, market reports, and index data; publishing workflows; role model (SuperAdmin, ContentManager, SeoManager, Agent) with audit trail
Technical SEO control
Address-based URL management, 301 redirect administration, metadata and JSON-LD structured data, filtered sitemap, Google Search Console pings, Index- Now
Owned platform & infrastructure
.NET 9 + Angular 20 (SSR) + PostgreSQL platform deployed in the client’s own AWS account (EC2, RDS,
S3, CloudFront, Route53) - the brokerage owns code, data, and environment
Listing-platform integration
Middleware synchronization layer with duplicate protection (listings publish to the website with zero human involvement) agent workflow unchanged. The middleware decouples the website from the provider’s API, making the integration pattern portable to other listing platforms
Purpose-built CMS
Content management for articles, agents, neighborhoods, market reports, and index data; publishing workflows; role model (SuperAdmin, ContentManager, SeoManager, Agent) with audit trail
Technical SEO control
Address-based URL management, 301 redirect administration, metadata and JSON-LD structured data, filtered sitemap, Google Search Console pings, Index- Now
Market analytics
Interactive market-index dashboard: public charts (closing volume, price per quarter, closings by property type and characteristics) backed by admin-managed data
Zero-disruption migration
Complete URL migration via 301 redirects; the new platform was built and tested in parallel with the live site; the cutover was executed overnight during off-peak hours, with no interruption to listing operations or public site availability
By combining pre-launch testing with an off-peak cutover, the replatforming concluded with zero unplanned downtime, full data integrity, and uncompromised search equity. The brokerage now operates on a modern, decoupled foundation that protects historic brand value while enabling rapid, autonomous feature development for the future.
Market analytics
Interactive market-index dashboard: public charts (closing volume, price per quarter, closings by property type and characteristics) backed by admin-managed data
Zero-disruption migration
Complete URL migration via 301 redirects; the new platform was built and tested in parallel with the live site; the cutover was executed overnight during off-peak hours, with no interruption to listing operations or public site availability
By combining pre-launch testing with an off-peak cutover, the replatforming concluded with zero unplanned downtime, full data integrity, and uncompromised search equity. The brokerage now operates on a modern, decoupled foundation that protects historic brand value while enabling rapid, autonomous feature development for the future.
Results
Results
Results
All discovery issues were resolved on schedule, achieving full technical independence with zero disruption to active business operations:
All discovery issues were resolved on schedule, achieving full technical independence with zero disruption to active business operations:
Complete Asset Ownership & Governance
Complete Asset Ownership & Governance
Complete Asset Ownership & Governance
Codebase, data, infrastructure, and the release roadmap were migrated entirely to the brokerage’s AWS environment, eliminating third-party vendor lock-in.
Codebase, data, infrastructure, and the release roadmap were migrated entirely to the brokerage’s AWS environment, eliminating third-party vendor lock-in.
Codebase, data, infrastructure, and the release roadmap were migrated entirely to the brokerage’s AWS environment, eliminating third-party vendor lock-in.
Operational Efficiency
Operational Efficiency
Operational Efficiency
Automated listing ingestion eliminated manual entry errors, while a purposebuilt CMS reduced content updates from a 1–2 week vendor support queue to same-day execution.
Automated listing ingestion eliminated manual entry errors, while a purposebuilt CMS reduced content updates from a 1–2 week vendor support queue to same-day execution.
Automated listing ingestion eliminated manual entry errors, while a purposebuilt CMS reduced content updates from a 1–2 week vendor support queue to same-day execution.
Minor Traffic Regression
Minor Traffic Regression
Minor Traffic Regression
Seamless 301 redirect mapping, structured metadata, and an off-peak cutover preserved existing search authority, keyword rankings, and live user sessions.
Seamless 301 redirect mapping, structured metadata, and an off-peak cutover preserved existing search authority, keyword rankings, and live user sessions.
Seamless 301 redirect mapping, structured metadata, and an off-peak cutover preserved existing search authority, keyword rankings, and live user sessions.
Re-activated IP
Re-activated IP
Re-activated IP
The dormant market-index dashboard was relaunched as an interactive, highperformance analytics asset backed by dynamic administrative pipelines.
The dormant market-index dashboard was relaunched as an interactive, highperformance analytics asset backed by dynamic administrative pipelines.
Business impact
Business impact
Business impact
The replatforming transformed a locked-in legacy platform into an autonomous, scalable digital asset:
• Asset Ownership: Shifted entirely from a restrictive third-party vendor to a client-owned AWS cloud environment.
• Listing Ingestion: Replaced manual publishing workflows with fully automated, zero-touch ingestion.
• Change Turnaround: Cut delivery delays from a 1–2 week vendor backlog down to same-day publishing via an internal CMS.
• URL Architecture: Upgraded from MLS-number-based links to address-based, SEO-optimized URL structures.
• Market Index Dashboard: Transformed a static analytics tool dormant for nearly five years into an interactive, admin-managed commercial asset.
By eliminating vendor dependency and securing complete ownership of its cloud infrastructure, the brokerage transformed a high-risk operational bottleneck into a scalable commercial asset.
The replatforming transformed a locked-in legacy platform into an autonomous, scalable digital asset:
• Asset Ownership: Shifted entirely from a restrictive third-party vendor to a client-owned AWS cloud environment.
• Listing Ingestion: Replaced manual publishing workflows with fully automated, zero-touch ingestion.
• Change Turnaround: Cut delivery delays from a 1–2 week vendor backlog down to same-day publishing via an internal CMS.
• URL Architecture: Upgraded from MLS-number-based links to address-based, SEO-optimized URL structures.
• Market Index Dashboard: Transformed a static analytics tool dormant for nearly five years into an interactive, admin-managed commercial asset.
By eliminating vendor dependency and securing complete ownership of its cloud infrastructure, the brokerage transformed a high-risk operational bottleneck into a scalable commercial asset.
The replatforming transformed a locked-in legacy platform into an autonomous, scalable digital asset:
• Asset Ownership: Shifted entirely from a restrictive third-party vendor to a client-owned AWS cloud environment.
• Listing Ingestion: Replaced manual publishing workflows with fully automated, zero-touch ingestion.
• Change Turnaround: Cut delivery delays from a 1–2 week vendor backlog down to same-day publishing via an internal CMS.
• URL Architecture: Upgraded from MLS-number-based links to address-based, SEO-optimized URL structures.
• Market Index Dashboard: Transformed a static analytics tool dormant for nearly five years into an interactive, admin-managed commercial asset.
By eliminating vendor dependency and securing complete ownership of its cloud infrastructure, the brokerage transformed a high-risk operational bottleneck into a scalable commercial asset.
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© 2026 Brightgrove. All rights reserved.
© 2026 Brightgrove. All rights reserved.
© 2026 Brightgrove. All rights reserved.
© 2026 Brightgrove. All rights reserved.