When integration isn't enough, we build what you need
A construction management system built around your firm's specific needs, progressively replacing the tools that aren't earning their keep. AI-native, mobile-first, offline-capable — covering all 7 UK regulatory domains.
Construction Industry Scheme
Automated verification, deduction calculations, HMRC-ready returns
VAT Reverse Charge
Automatic domestic reverse charge detection and correct VAT treatment
Making Tax Digital
Digital links, VAT return assembly, HMRC submission-ready
CDM Regulations
Duty holder register, pre-construction info, phase plans, notifications
Building Safety Act
Golden thread of safety-critical information, indefinite retention
ISO 19650 CDE
Common Data Environment with containers, status codes, approval workflows
UK GDPR
Data classification, retention policies, pseudonymisation, right to erasure
UK regulatory domains covered
Best competitor: 3.5/7
Why Replace exists
Connect reveals the pain. Replace resolves it. Tap each card to see the transformation.
Dashboard shows CVR takes 45 minutes instead of 3 days
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CVR is native — real-time, no compilation needed at all
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Compliance surfacing shows gaps across 7 regulatory domains
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Full compliance automation — CIS, VAT RC, MTD, CDM, BSA, ISO 19650, GDPR
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Integration monitoring catches broken API connections
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No integrations to monitor — it's one platform
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Mobile dashboard gives read-only project visibility on site
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Full mobile app with offline data entry, defect logging, daily diaries
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Provisioning automates accounts across 8–12 separate tools
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One system, one login — provisioning is instant by design
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Six core modules
Each module is built for UK construction. Replace the tools that aren't earning their keep — one module at a time.
Finance Module
End-to-end construction financial management with UK regulatory compliance built in.
AI that's native, not bolted on
Built into every module from day one. Not a chatbot stuck on the side of a legacy platform.
Natural language queries
Ask questions in plain English. "How is Block C tracking against budget?" "Which subcontractors have outstanding CIS returns?"
Ask. Don't search.
Document analysis
AI reads contracts, drawings, specifications, tenders. Extracts clauses, payment terms, retention, insurance requirements.
Reads contracts so you don't have to
Predictive analytics
Cost forecasting from CVR trends. Schedule risk from critical path analysis factoring weather, subcontractor performance, and materials.
See problems before they happen
Compliance monitoring
CIS deadlines monitored, alerts generated, draft returns pre-populated. CDM notification tracking. Golden thread completeness scored.
Never miss a compliance deadline
Intelligent reporting
Board reports auto-generated. CVR narratives drafted from financial movements. Compliance summaries compiled for regulatory bodies.
Reports that write themselves
AI-enhanced, not AI-dependent
Your current SaaS vendors are bolting AI features onto decade-old platforms and raising your price to pay for it. Generic AI platforms want to replace your tools entirely — but they don't understand CIS, CDM, or golden thread retention. Smartzone Replace uses AI as infrastructure, not as the product. If an AI provider has a bad day, your QSs still produce CVRs, your site managers still file diaries, your compliance data still flows. The platform runs independently. AI makes it smarter — it doesn't make it fragile.
Designed for site at 6:45am in the rain
Not a desktop app squeezed onto a phone. A genuine mobile-first experience that works offline, with large touch targets for gloved hands, high contrast for outdoor visibility, and zero reliance on site WiFi.
- Full offline capability — syncs when connectivity returns
- Daily diaries, defects, inspections, timesheets — all from your phone
- Smart conflict resolution for offline changes
Today · 12 Mar
Site induction — Block C
07:00
Concrete pour inspection
09:30
Scaffold check — Level 4
11:00
M&E coordination meeting
14:00
The GDPR-BSA Resolution Engine
The Building Safety Act requires indefinite retention of safety-critical information. UK GDPR requires deletion of personal data. When the same record is both, you have a legal conflict no other platform resolves.
Personal data
Home address, next of kin, bank details. GDPR retention applies. Deleted when employment ends.
Safety data
Test certificates, structural calculations, fire safety records. BSA golden thread. Retained indefinitely.
Dual-purpose
Record splits into two: personal identity (GDPR deletion) and safety fact (pseudonymised, retained indefinitely).
No other construction platform resolves this conflict. The pseudonymisation approach is validated with specialist legal counsel before deployment.
Work this novel qualifies for UK R&D tax relief — the GDPR-BSA resolution architecture represents a genuine advance in the field, not routine software development. The assessment estimates qualifying expenditure and indicative benefit.
Golden thread data must be retained indefinitely. If your SaaS vendor changes terms, raises prices, or goes bust — where does that data go? With Smartzone, it stays in your infrastructure. You own it. Always.
7 out of 7 UK regulatory domains
No competitor covers more than 3.5. Smartzone Replace covers all seven — automated, not manual.
Construction Industry Scheme
Automated verification, deduction calculations, HMRC-ready returns
VAT Reverse Charge
Automatic domestic reverse charge detection and correct VAT treatment
Making Tax Digital
Digital links, VAT return assembly, HMRC submission-ready
CDM Regulations
Duty holder register, pre-construction info, phase plans, notifications
Building Safety Act
Golden thread of safety-critical information, indefinite retention
ISO 19650 CDE
Common Data Environment with containers, status codes, approval workflows
UK GDPR
Data classification, retention policies, pseudonymisation, right to erasure
Best competitor: 3.5/7
Smartzone Replace: 7/7
Scoped to your firm
Replace is built around your specific needs — modules, regulatory scope, and priorities.
Modular by design
You don't buy the whole platform on day one. We start with the modules that address your highest-pain areas — typically Finance and Project Management — and expand from there.
Phased delivery
Replace is delivered in sprints, scoped by the assessment. You see progress every few weeks, start cancelling software subscriptions as modules go live, and have full control over scope and pace.
Your Connect investment carries forward
Your Connect build fee credits toward Replace. Your data, integrations, and the knowledge we built during Connect all carry forward. You're never paying twice for the same work.
Designed to cost less than your current stack
Replace is designed so that the software subscriptions you cancel offset the investment. We track verified savings against your assessment baseline. Novel elements — regulatory engines, AI compliance automation — may also qualify for R&D tax relief, further reducing your net investment.
You own everything
The platform, the data, and the code — they're yours. Your project data stays in your infrastructure (AWS London, eu-west-2). If you part ways with us, you keep everything. For golden thread compliance, data ownership isn't a preference — it's a legal obligation.
The Replace journey in numbers
Designed to cost less than the stack it replaces. See the full cost breakdown
Replace starts with Connect
Most firms start by connecting what they have, then replace what doesn't work. Book a free health check and we'll map where you stand.