Real Estate & PropTech · Document AutomationFull case study

StartDeck

Document automation SaaS for commercial appraisers

Problem

Commercial appraisers, consultants, and technical-writing teams spend hours per report assembling comparable-property data and formatting narrative sections by hand, work that's repetitive, error-prone, and doesn't scale with volume. It needed to happen inside the Google Workspace tools these teams already used all day, not a separate app they'd have to context-switch into.

Solution

We designed and built StartDeck as a Google Workspace–integrated SaaS platform: deep Drive/Docs/Sheets integration (plus Google Maps auto-embedding) for dynamic project folders and structured template population, a ChatGPT-4-powered writing assistant (with custom GPT fine-tuning for domain-specific guidance) built directly into the drafting workflow, an in-house eSignature module that removed any third-party signing dependency, and a BigQuery-backed comparable-property database for enterprise-scale commercial real estate datasets. Role-based access, Stripe billing, OAuth 2.0, and a progressive web app with live co-authoring tie it together as a full multi-tenant SaaS product, not a single-purpose tool.

StartDeck product screens: the marketing site on a laptop, a CRE Due Diligence Report template being populated in Google Docs with merge fields, and the StartDeck sidebar add-on managing forms, fields, and maps. — Form-driven data entry, merge fields, and the StartDeck sidebar: document automation living directly inside Google Docs and Sheets.

Outcome

StartDeck cut document creation time by 50-70%, eliminated third-party eSignature costs entirely, and reduced onboarding time by 60% through its built-in AI knowledge assistant. It shipped from spec to production MVP in six months, with every document staying in the customer's own Google Drive rather than a copy on our servers. The same engagement expanded into StartDeck Writer, a companion Google Workspace add-on covered in its own case study.

From the client

“They demonstrated stellar excellent project management and responsive communication. I have worked with Duskbyte for many years and have had a consistently positive experience.”

Tom Armstrong, Owner, StartDeck. Clutch-verified, 5.0/5.0

Results for StartDeck

50-70% faster document creation
100% elimination of 3rd-party eSignature costs
Working software in weeks, full platform in six months
60% faster onboarding

Tech & integrations

Vue.jsAngular (SSR)TypeScriptLaravelMySQLBigQueryDockerKubernetes (GCP)FirebaseOpenAI API (ChatGPT-4)Google Workspace APIsStripe

Beyond this client

The reusable idea: build inside the tools appraisers already have open all day instead of shipping a separate app they have to context-switch into, and own the pieces that usually mean vendor lock-in, signatures, data storage and the writing assistant, in-house rather than bolting on a third party for each.