Structural design & approvals
Structures engineered to stand for generations.
Safe, efficient frameworks for villas, apartments, office buildings and factories — calculated for load, soil and seismic conditions, coordinated with the architecture and drawn to IS codes and the National Building Code.
Representative photography
01Structural engineering
Safety, stability and durability — calculated.
For residential homes, commercial complexes and industrial units: structural engineering that supports every stage of your construction journey.
- 01
Structural designing
Intelligent structural layouts that account for load dynamics, usage, materials, soil conditions and future expansion.
- 02
Structural analysis
Comprehensive analysis to predict performance, reduce risk and optimise material use — from earthquake resistance to wind load.
- 03
Customised solutions
No one-size-fits-all: every design is tailored to your site conditions, architectural vision and usage.
- 04
Advanced engineering tools
Accurate 2D and 3D models, stress simulations and construction-ready documentation using ETABS, STAAD Pro, AutoCAD and Revit.
- 05
Quality assurance & compliance
Designs follow IS codes and National Building Code (NBC) regulations, with quality checks from design to documentation.
02Method
Problem solvers, not just calculators.
Every structure begins with a detailed site evaluation and requirement analysis, then a custom design integrated with the architectural layout — calculated for seismic and load-bearing conditions.
- Detailed site and requirement analysis
- Custom structural design solutions
- Integration with architectural layouts
- Seismic and load-bearing calculations
- Timely delivery and clear communication
- Designed to IS codes and the NBC
03What we engineer
From family homes to factory floors.
Each building type carries its loads differently, so each frame is designed for its own use, spans and soil.
Villas & independent houses
Load-bearing frames planned around open living spaces, terraces and future floors.
Apartments
Multi-storey frames analysed for gravity, wind and seismic loads, floor by floor.
Offices & commercial
Longer spans and flexible floor plates for workspaces that change over time.
Factories & industrial units
Structures sized for heavy floor loads, equipment and wide clear spans.
Representative photography.
04Structural drawings
Every member, drawn and detailed.
The structural set issued for construction: what is built on site is exactly what was calculated.
- SheetTitleCovers
- S-01Foundation & footing detailsSized from the soil conditions and the loads above
- S-02Column layout & schedulePositions, sizes and reinforcement of every column
- S-03Beam layout & detailsPlinth, floor and roof beams with their reinforcement
- S-04Slab reinforcementBar layout, thickness and cover for every slab
- S-05Staircase detailsWaist slab, landings and reinforcement
- S-06Lintels, sunshades & parapetsThe smaller elements that are easy to get wrong on site
05Planning, design & approvals
Permits and approvals, handled.
We prepare the drawings and documentation your project needs and coordinate the approval process, so construction starts compliant with local building codes and regulations.
Building plan approval
Site plan, floor plans, sections and elevations drawn to the applicable development rules, then submitted and followed up with the authority until the planning permit is issued.
Structural stability certificate
Your structural design checked and certified by our structural engineer, ready to file with the plan approval application.
Authorities we work with
- CMDA
- DTCP
- Greater Chennai Corporation
- Municipalities & panchayats
How an approval runs
- 01
Document check
We review the ownership and site documents and confirm which authority your plot falls under.
- 02
Survey & drawings
The site is measured and the approval drawings are prepared to the setbacks, FSI and height rules that apply.
- 03
Structural certificate
The structure is designed and the stability certificate prepared for the application.
- 04
Submission & follow-up
We file the application, answer the authority's queries and follow it through to the permit.
Before your first visit
Documents you'll typically need.
The exact list depends on the authority and the project — we confirm it with you at the start.
- Sale deed or title documents
- Patta
- Encumbrance certificate
- Survey / FMB sketch
- Latest property tax receipt (existing buildings)
- Owner's ID and address proof
06Structural leadership
The engineer behind the numbers.
A structural engineer by training, he leads the structural side of S3's work — the load calculations and structural drawings behind each frame, and the stability certificates that approvals require.
Structural engineering
Sharatheeswaran
Managing Director
- B.E.
- M.E. Structural
- AMIE
- AIV
10+years of experience
- Structural design
- Stability certificates
- Site inspections
07FAQ
Questions, answered.
Yes. We manage the permits and approvals your project needs and navigate the regulatory process so your project complies with local building codes and regulations.
Yes. We design with natural light, cross-ventilation and energy-efficient planning, and can incorporate sustainable materials and green building practices to reduce environmental impact.
New residential and commercial construction, renovations, interior and exterior construction, structural design and project management — for projects of all sizes.
Specified, branded materials, skilled professionals, strict quality-control measures and engineer inspections at each stage of construction.
Start a conversation
Build on a structure you can trust.
Share your plot, budget and ideas — we'll come back with a clear plan, a realistic timeline and an honest estimate.