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Illustrative building and figures

Launching soon · Sampraxis CAD + Sampraxis Project Management

Design it. Build it. Prove it.

Beside this text an animated 3D model of an illustrative apartment block (stilt parking and four floors) is drawn as a plan, modelled in Sampraxis CAD, then built floor by floor in Sampraxis Project Management while a site log, cement issued per day and an S-curve of budget against actual cost move with it. Every figure it shows is illustrative and is written out in these chapters.

Sampraxis CAD turns a plan into an editable 3D building and its quantities. Sampraxis Project Management runs the site, the money and the proof that the work is real. Two products for Indian construction, on one record of the same building. Scroll to watch one go up.

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Launching soon

Chapter 1 of the story: Design it. Build it. Prove it.

Sampraxis CAD · works in development builds

Draw once. The model carries the drawings and the quantities.

Walls host their doors and windows; slabs, columns, beams, footings and stairs follow. Cut a live section anywhere. Sheets at exact scale and finishes quantities come from the same elements, so nothing is drawn twice.

  • Plan drafting with grids, snaps and typed dimensions
  • Live sections and elevations synchronised with the model
  • Sheets A4–A1 exported to PDF, SVG and DXF
  • Finishes quantities today; the full BOQ is in development

Works in development builds · full BOQ in development

Chapter 2 of the story: Draw once. The model carries the drawings and the quantities.

The hand-off · pilot rollout

The approved estimate becomes the plan.

Quantities from the drawings pass through rate analysis into a working estimate. Approved, it becomes an immutable baseline: a budget spread over the schedule, floor by floor. The subcontractor’s agreement fixes the scope of work, the rate and the deductions before anyone starts.

  • Design QTO from drawings; rate books and rate analysis
  • Working estimate and an approved, immutable baseline
  • Planned cost per task: the budget line of the S-curve
  • Subcontract agreement: scope, rate, retention and TDS
Subcontract agreement signed · v1
Scope of work
RCC frame labour: footings, columns, beams, slabs and stairs, up to the roof slab
Rate
₹2,800 per m² of slab, on joint measurement
Retention
5%, released after the defects period
TDS
1% under section 194C
Payment
one RA bill per slab, on certified work

Pilot rollout · the CAD-to-PM hand-off itself is in development

Chapter 3 of the story: The approved estimate becomes the plan.

Sampraxis Project Management · beta

Every day on site, recorded once.

Footings, columns, formwork, steel, the pour. The site engineer records each day once: work done against the task, labour from attendance, material from stock, photos. Every pour starts its own curing clock, with a start date, an end date and a daily log, and the next floor waits for it.

  • Daily progress report with photos, approved in the office
  • GPS attendance inside a geofence, with reasons for exceptions
  • Curing start and end dates for every pour, logged daily
  • Cube tests at 7 and 28 days against the target strength
Curing register M25 · cubes in N/mm²
  • First-floor slab cast 20 May cured from 21 May → 3 Jun 7-day cube 19.6 28-day cube 31.4
  • Second-floor slab cast 12 Jun cured from 13 Jun → 26 Jun 7-day cube 20.4 28-day cube 32.6
  • Third-floor slab cast 3 Jul cured from 4 Jul → 17 Jul 7-day cube 18.9 28-day cube 30.8
  • Fourth-floor slab cast 31 Jul cured from 1 Aug → 14 Aug 7-day cube 20.1 28-day cube 32.1
  • Roof slab cast 20 Aug cured from 21 Aug → 3 Sep 7-day cube 19.3 28-day cube 31.0

Beta

Chapter 4 of the story: Every day on site, recorded once.

Materials and money · beta

Every bag and every rupee, against the budget.

Walls rise behind the frame, then lintels, plaster, doors and windows. The cement issued each day comes off the stock that a GRN put there. The S-curve moves with the building: the budget that was planned, the value of the work done and what it has actually cost, so an overrun is seen the week it starts.

  • Cement and steel issued per day, against stock
  • Indent, quotation comparison, purchase order and GRN
  • Planned, earned and actual cost on a live S-curve
  • Rate-spike and cost-overrun alerts
Cement stock register 50 kg bags
Received on GRNs
1,800
Issued to work
1,670
In stock
130
Issued today
6

Beta

Chapter 5 of the story: Every bag and every rupee, against the budget.

Verified Construction Progress · built · in controlled pilot rollout

Reported is not verified.

A percentage typed into a report is a claim. Sampraxis checks each work package against its evidence — measurement, photos, quality tests, curing, drawings and approvals — and says plainly what is proven, what needs action and what cannot be judged yet.

  • Measurement Book with L × B × D dimensions
  • Cube tests, inspections and curing logs
  • Green, amber, red, not evaluable, not applicable
  • Missing evidence is never shown as green
  1. Reported 72%
  2. Measured 61%
  3. Accepted 58%
  4. Certified 54%
  5. Billed 50%
  6. Paid 46%

Built · in controlled pilot rollout

Chapter 6 of the story: Reported is not verified.

Claims, GST and the client · beta + pilot rollout

Claims follow proof. The books follow the claims.

Each RA bill is measured, certified and approved before it is paid, with retention and TDS shown before the net payable. Purchase invoices are reconciled against GSTR-2B, journals post themselves, and the client’s Progress Confidence Report is built from the same evidence with the cost details removed.

  • RA bill: claimed, certified, approved, paid
  • Retention, TDS, advance recovery and material debit
  • GSTR-2B reconciliation and input tax credit
  • Client-safe Progress Confidence Report
RA bill 05 · roof slab frame labour · 22 Aug → 28 Aug
  1. Measured 161.7 m² in the Measurement Book
  2. Claimed 161.7 m² × ₹2,800 = ₹4,52,760
  3. Certified 158.8 m² accepted · ₹4,44,640
  4. Retention 5% held back · ₹22,232
  5. TDS 1% under 194C · ₹4,446
  6. Approved net payable ₹4,17,962
  7. Paid 28 Aug · journal posted
GSTR-2B reconciliation Oct 2026
Purchase invoices
43
Matched with 2B
41
Flagged
2 · vendor has not filed
Input tax credit matched
₹4.1 L
Progress Confidence Report client-safe · illustrative
72%reported 58%verified 91%coverage
  • First-floor slab, RCCMB 31.3 m³ · 28-day cube test passed · 14 photos
  • Second-floor brickworkMB 38.1 m³ · inspected · drawing R3
  • Third-floor framecuring log missed 1 day
  • Terrace waterproofingponding test failed · NCR open
  • Fourth-floor plasternot evaluable · no measurement yet

data as of 2 Dec 18:42 · rules v1.4 · report hash 9b3f…e21a

RA bills and GST in beta · claim control and the client report in pilot rollout

Chapter 7 of the story: Claims follow proof. The books follow the claims.

One building · one record · two products

One building, one record.

Each product works on its own. Together, the quantities you design are the quantities you plan, build, measure, claim and prove. Both are launching soon, and early-access firms get them first.

Launching soon

Chapter 8 of the story: One building, one record.

Two products · equal halves of one job

Draw the building. Then run it.

Each product works on its own. Together, the quantities you design are the quantities you plan, build, measure, bill and prove.

Sampraxis CAD · desktop · in development, launching soon

The model you measure from

Draw the plan or bring it in from AutoCAD. Walls host their doors and windows; slabs, columns, beams, footings and stairs follow. Sections, elevations, sheets and quantities come from that one model.

  • Plan drafting with grids, snaps, typed dimensions and working planes
  • Walls with hosted openings, edited in plan or in 3D
  • Slabs, rooms and cut-outs with live areas
  • Columns, beams, footings and plinth beams
  • Five stair layouts and ramps with headroom checks
  • Named levels, grids and independent floor copies
  • Live sections and elevations; sheets A4–A1 to PDF, SVG and DXF
  • Finishes quantities and rates full BOQ in development
  • AutoCAD DXF/DWG import in testing
  • AI assistant through MCP, every proposal reviewed in testing
45modelling flows 2D↔3Done model PDF·SVG·DXFsheet export
Explore Sampraxis CAD →

Sampraxis Project Management · web + Android · private beta, launching soon

The site, the money and the proof

Daily progress with photos, measured work, subcontract bills, materials, accounts, GST and TDS in one project record, plus a layer that shows how much of the reported progress is actually proven.

  • Daily progress report with photos, labour and materials, approved in the office
  • GPS attendance inside a geofence; quality inspections, cube tests and curing
  • Drawings, RFI / RFC / TQ, meeting minutes and decisions
  • Materials from indent and quotation to PO, GRN and stock
  • Subcontract agreements, Measurement Book, RA claims and certification
  • Client RA bills, change orders and a client portal
  • Accounts that post themselves; GST and TDS returns; payroll
  • Gantt, S-curve and earned value
  • Verified Construction Progress pilot rollout
  • AI Copilot that cites its sources; 11 roles and approvals
59capabilities 20families 11roles
Explore Sampraxis Project Management →

Sampraxis Project Management · the module map

Everything a project needs, by the work it covers

59 capabilities in 20 families, switched on per company and per project. A one-person contractor sees a cashbook and a site diary; a builder sees the full chain. Nothing is ever removed, and the money controls are on for everyone.

  • BetaLive in the private beta on app.sampraxis.com
  • Pilot rolloutBuilt and installed; switched on project by project after qualification
  • In developmentBeing built; not usable yet
  • PlannedDecided, not started

Plan & estimate

execution.tasks · cost.*

  • Tasks, dependencies, Gantt import Beta
  • Design QTO from drawings Pilot rollout
  • Rates and rate analysis books Pilot rollout
  • Working estimation and approved baseline Pilot rollout
  • Planned cost allocation to tasks Pilot rollout
  • EVM, S-curve, variance Beta

Site

site.* · quality.* · workforce.*

  • Daily progress report with photos Beta
  • Daily site log without tasks Pilot rollout
  • Curing tracker with hard blocks Beta
  • Quality inspections, cube and soil tests Beta
  • GPS attendance, geofence, review Beta
  • Make-Ready board Pilot rollout
  • Task execution detail Pilot rollout

Drawings & coordination

coordination.design

  • Drawing register and revisions Beta
  • RFI / RFC / TQ queries Beta
  • Coordination hub Pilot rollout
  • Meeting minutes and actions Pilot rollout
  • Decision register Pilot rollout

Materials

materials.inventory · procurement.purchasing

  • Stock by project, receipts, issues Beta
  • Indent → RFQ → quotation comparison Beta
  • Purchase orders and advances Beta
  • GRN with three-way match Beta
  • Difference notices Beta

Commercial

commercial.* · client.billing

  • Subcontractors and work orders Beta
  • Signed agreements with typed terms Pilot rollout
  • Measurement Book (L × B × D) Pilot rollout
  • MB-backed RA claims Pilot rollout
  • Completion, acceptance, certificates Pilot rollout
  • Claim and payment control Pilot rollout
  • Client RA bills and change orders Beta

Accounts & tax

finance.* · tax.*

  • Journals, ledgers, queues, petty cash Beta
  • Bank reconciliation, asset register Beta
  • GSTR-1, 3B, 9, 2B reconciliation, ITC, e-invoice Beta
  • TDS register, 26Q, Form 16, challans Beta
  • Year-end and period close Beta
  • Tax determination (advisory) Pilot rollout
  • Accounts transition import Pilot rollout

People

people.*

  • Employees and worker master Beta
  • Leave policies and requests Beta
  • Payroll runs and payslips Beta
  • PF, ESI, PT, LWF and salary TDS Beta

Client & handover

client.* · handover.warranty_dlp

  • Client portal: progress, bills, photos Beta
  • Change orders and messages Beta
  • Progress Confidence Report Pilot rollout
  • Warranty vault and DLP defects Beta
  • Consultant and CA dashboards Beta

Intelligence

intelligence.*

  • AI Copilot over your records Beta
  • Source-cited project Copilot Pilot rollout
  • Alerts: schedule, cost, quality, stock Beta
  • Exception inbox with owners Pilot rollout
  • Autonomous agents add-on Planned

Controls

platform.* · pmc.controls

  • 11 roles, two-layer permissions Beta
  • Approvals, no self-approval, separation of duties Beta
  • Audit trail, soft delete, reversals Beta
  • PMC and CMC books per project Beta
  • Capability presets per project Pilot rollout

Verified Construction Progress · built · in controlled pilot rollout

Reported progress is not trusted progress

Six facts stay apart: reported, measured, accepted, certified, billed and paid. Site measurement never rewrites the drawing quantity, a daily report never certifies completion, and quality acceptance never authorises payment. Each step has its own owner and its own evidence, and none quietly promotes the next.

Green

Required proof is applicable, available, fresh, aligned and passed.

Amber

Progress exists, but proof, variance, a decision or freshness needs action.

Red

A deterministic failure, blocker, rejection, over-use or unresolved NCR.

Not evaluable

Required truth is unavailable or unproven. Missing evidence is never shown as green.

Not applicable

The project’s approved profile does not require this source.

What a work package is checked against

  • Tasks and the approved baseline
  • Daily progress reports, labour and materials
  • Measurement Book entries
  • Photos
  • Quality inspections, cube and soil tests
  • Curing entries and daily logs
  • Drawings, revisions and the drawing register
  • RFI / RFC / TQ queries
  • Task approval gates
  • GRNs, purchase orders and difference notices
  • Earned value and variance

AI cites. It never decides.

The Copilot answers with its sources, their date and the rule version it used. It cannot approve a drawing, certify work, release a task, create a deduction, post accounts or pay anyone. Those stay with the people allowed to do them.

Status of this layer: engineered, tested and installed in production, dormant. It is activated per project and per rule, from observe to advisory to approval-assist to enforced, after qualification.

How Verified Construction Progress works →

Sampraxis CAD · desktop · in development

Model first. Every drawing and quantity follows.

Sampraxis CAD is being built model-first for Indian buildings: one authoritative building model, edited in plan or in 3D, from which sections, elevations, sheets and quantities are produced rather than drawn again. The three sheets below were generated from the same illustrative model as the building in the story.

123456ABCD16 000FIRST FLOOR PLAN · 1 : 100 · ILLUSTRATIVE
First floor planIllustrative apartment block 1 : 100Scale P-101Drawing
+0.0+3.0+6.0+9.0+12.0+15.0SECTION A–A · 1 : 100 · ILLUSTRATIVE
Section A–AIllustrative apartment block 1 : 100Scale S-201Drawing
+0.0+3.0+6.0+9.0+12.0+15.0FRONT ELEVATION · 1 : 100 · ILLUSTRATIVE
Front elevationIllustrative apartment block 1 : 100Scale E-301Drawing

Plan, section and elevation generated from one model: 129 walls, 137 doors and windows, 120 columns and 95 stair treads. Every quantity on this page is computed from it and labelled illustrative.

works in development builds

  • Lines and walls with typed lengths, grids, snaps, ortho and working planes
  • Walls host doors and windows; lintels, sills, finishes and skirting follow
  • Slabs, rooms and cut-outs, resized with live areas
  • Rectangular columns, beams, isolated footings, plinth beams and explicit junctions
  • Five stair layouts and straight ramps with headroom checks
  • Named levels, unified grids and independent floor copies

in testing

  • DXF and DWG import as a reviewed reference layer, aligned to levels
  • AI through MCP: inspect a project, propose elements, review, create, reconcile

in development

  • AI reads a complete drawing set and builds the editable model
  • Structural quantities and a full priced BOQ
  • Exchange with Sampraxis Project Management: approved BOQ in, revisions as differences to approve

AI through MCP · in testing

The assistant proposes. The CAD engine builds and measures.

With your permission an assistant such as Claude or Codex inspects a project and its imported drawings and proposes walls, openings and slabs. You review before anything is created; geometry and every quantity are calculated by Sampraxis CAD, not by the AI. In development builds a scripted MCP client has built a complete four-storey residence this way and saved it as an ordinary, hand-editable project.

Explore Sampraxis CAD →
  • Example MCP session (illustrative)
  • cad_configure_floor 5 storeys · 3.0 m
  • cad_draw_wall 129 walls
  • cad_place_opening 137 doors and windows
  • cad_place_stair 5 dog-leg flights · 95 treads
  • cad_save_project saved

The connection · one record from drawing to proof

Typed once. Carried through.

On most projects the drawing, the estimate, the site diary and the bills live in different tools, and every change is typed again. Sampraxis is built so one record carries through, and a drawing revision arrives as a difference to approve, not a surprise on site.

  1. Drawing

    Drawn or imported, with levels and grids

    works

  2. Quantities

    Measured from the model, element by element

    finishes today

  3. BOQ

    Priced with reviewed rates

    In development

  4. Estimate baseline

    Design QTO, rate books, approved baseline

    Pilot rollout

  5. Tasks

    Plan, dependencies, make-ready

    Beta

  6. DPR

    Work done, labour, material, photos

    Beta

  7. Measurement

    Measurement Book, L × B × D

    Pilot rollout

  8. Acceptance

    Quality, curing, consultant, PM review

    Pilot rollout

  9. Claim

    RA bills, certification, deductions, GST, TDS

    Beta claim control in pilot

  10. Proof

    Accounts posted; client confidence report

    Pilot rollout

Teal steps happen in Sampraxis CAD, amber steps in Sampraxis Project Management. The hand-off between them is in development. How the two products connect

Your size · one app that adapts

As much process as you want. All the safety, always.

Pick a starting profile per project and switch families on as the job grows. A company can run one project simpler than another, and disabling a family never deletes its records.

  • Finance only

    Money in and out, bills, ledgers and reports. No tasks, BOQ or DPR required.

  • Site diary & quality

    Daily site log, photos, inspections and curing without a task plan.

  • Design coordination

    Drawings, RFI / RFC / TQ, minutes and client decisions.

  • Commercial & subcontractor

    Agreements, variations, work orders and claims.

  • Full construction

    The complete chain from estimate to verified progress and payment.

Capability presets are in pilot rollout. Every project today runs the full configuration its company chose.

PMC consultancy

The client’s money runs the project. Vendor bills are paid on the client’s behalf and stay in the client’s project book; your fee is your income. Sampraxis for PMC consultants

Material or turnkey contract

You own the cost. Materials, labour and subcontractors are your expenses, the client pays your rates through RA bills, and every project posts to one company book. Sampraxis for civil contractors

  • Approval before payment

    Money moves only after someone allowed to approve it has done so, with the approver bound to their login.

  • Who did what, always

    Every amount keeps who entered it, who approved it and when.

  • Corrections by reversal

    A posted entry is never edited in place; it is reversed and re-entered, so the history stays readable for you and your CA.

  • Same protection at every size

    A solo contractor’s money is protected like a large builder’s. Safety is never a paid upgrade.

Who makes it

Made by an engineer who prepares these bills

Sampraxis is built by Sambireddy, a civil and structural engineer with experience in structural design, construction and project management consultancy since 2014. That practical experience shapes how Sampraxis handles drawings, measurement books, bills and site accounts. Read the story behind Sampraxis

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