By Design UK
Growth SaaS Build — Multi-Role, Unlimited Users, 5 APIs & AI Features | £64,997–£155,000 | By Design UK
Growth SaaS Build — Multi-Role, Unlimited Users, 5 APIs & AI Features | £64,997–£155,000 | By Design UK
Call us: 020 3951 4908 · Mon–Sat 9am–6pm
Free 30-minute scoping call · Fixed price proposal · No obligation
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£64,997 – £155,000
Market Rate: £100,000 – £200,000
A full-scale AI-powered SaaS platform with multiple user roles, unlimited subscribers, five API integrations and real-time analytics — at a price agencies charge just to begin their discovery phase.
✅ What's Included
- 🔐 Enterprise-Ready Authentication — SSO-ready, optional 2FA, session management, concurrent session control, account lockout
- 👥 Three Distinct User Role Types — Super Admin, Business Owner, Staff. Granular permission controls per feature
- ♾️ Unlimited User Sign-Ups — Scalable database architecture designed for 10,000+ users from day one
- 💳 Advanced Stripe Billing — 5 tiers, usage-based billing, seat-based pricing, annual discounts, referral codes, VAT handling
- 🖥️ Advanced Admin Dashboard — Full user management, feature flags, bulk operations, activity log, system health monitoring
- ⚙️ 4 Core Feature Workflows — Four fully functional primary features built end-to-end
- 🔗 5 Third-Party API Integrations — Twilio, OpenAI, HubSpot, Google Workspace, Zapier, Slack, PureSMS, WhatsApp Business
- 🤖 AI-Powered Features Built In — Smart suggestions, auto-generated reports, plain-English search, anomaly detection
- 📊 Real-Time Analytics Dashboard — MRR, ARR, churn rate, LTV, active users, cohort analysis, feature usage heatmaps
- 🔔 Full Notification System — In-app, email alerts, optional SMS, user preference panel
- 📧 Full Transactional Email Suite — 10+ email templates via Resend, branded with your domain
- 🛡️ GDPR Full Compliance — Cookie consent, right to erasure (automated), data export, audit log
- 📁 Full GitHub Repository — Component library documented, deployment guide, yours entirely
- 🔧 90-Day Post-Launch Support — Bugs, deployment and performance tweaks covered
⏱️ Timeline
14–16 weeks from signed brief to live platform.
🛠️ Tech Stack
React · Tailwind CSS · Netlify Pro · Supabase Pro · Stripe · Claude API · Resend · GitHub
🎯 Who Is This For?
Growing businesses building SaaS as a primary revenue stream. Founders who want AI as a core differentiator.
📞 020 3951 4908
info@bydesignuk.co.uk · bydesignuk.co.uk · Office 13, 25 Mollison Avenue, Enfield EN3 7LW
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