OSBS Assistant - SIA
OSBS Assistant - SIA
Om Sai Building Solutions is a full-service construction company in Marathahalli, Bengaluru. We handle every stage of your home's construction — soil testing, architectural design, BBMP approvals, excavation, RCC framework, masonry, MEP services, plastering, flooring, and final key handover — under one contract, at a fixed price, with ISI-certified materials and a 50-year structural warranty that no other builder in Bangalore puts in writing.
Get an instant quote & structural engineer consultation for your plot.
Om Sai Building Solutions constructs residential and commercial buildings across Bengaluru. Every project is managed by our in-house team — structural engineer, site supervisor, and project manager — with no subcontracting of primary civil work.
Complete civil execution for G to G+3 independent houses — soil testing, BBMP plan sanction, excavation, foundation, RCC columns and slabs, brick masonry, plastering, flooring, electrical, plumbing, painting, and final handover. Packages from ₹1,950/sqft with ISI-certified Fe550 steel and branded cement.
Structural execution for G+1 and G+2 duplex and villa construction — double-height living spaces, staircase design, elevated roof slabs, premium flooring (marble/granite up to ₹160/sqft in Ultra Premium), and luxury finishes. Built to full architectural brief with 3D elevation design included.
Additional floor construction on existing residential structures — beginning with a certified structural engineer's load-bearing assessment of existing foundation and columns. Retrofitting managed if required. New slab casting, staircase extension, and full MEP integration covered under 50-year warranty.
Civil construction for PG buildings, rental apartment blocks, mixed-use commercial properties, and retail structures — designed for maximum FSI utilization under BBMP regulations. All statutory approvals managed by OSBS. Packages and pricing on request.
For clients who want a single contract covering construction plus complete interior finishing — OSBS offers a turnkey delivery option combining structural construction with interior design, modular kitchen, wardrobes, false ceiling, painting, and handover. Explore Full Turnkey Details →
Cost overruns and material substitutions are the two most common complaints homeowners in Bangalore have about construction companies. At OSBS, both are contractually eliminated — not just verbally promised.
Before work begins, you receive a complete Bill of Quantities (BOQ) specifying every material, brand, grade, and payment milestone. The total price is locked on signature. It does not change unless you explicitly modify the scope in writing. Stage payments are released only when each physical milestone is completed and verified — no advance bulk payments.
A structural site engineer is assigned exclusively to your project for full-time daily supervision of civil work, labour management, and on-site material quality checks. Senior Project Managers conduct QC audits twice a week. Executive management conducts monthly structural checks. You receive daily site photo updates.
Every structural material — steel (Fe550, JSW, Jindal, or TATA depending on package), cement (Bharathi, Chettinad, Dalmia, ACC, or Ramco depending on package), concrete mix, and wiring (Finolex) — is ISI-marked and cross-checked against your approved BOQ when it arrives at your site. No substitutions without written client approval. Ever.
Om Sai Building Solutions backs every construction project with a 50-year structural warranty — a written commitment covering the complete structural framework from the date of handover, regardless of which package you choose.
| What Is Covered | Warranty Scope |
|---|---|
| Foundation & Footings | Structural failure, settlement cracking, or load-bearing failure from workmanship or material defect — rectified at zero cost |
| RCC Columns & Beams | Structural integrity of all reinforced concrete columns, beams, and lintels — 50 years from handover date |
| Roof & Floor Slabs | Slab deflection, cracking, or failure due to construction defect — fully covered |
| Load-Bearing Walls | Structural cracking in load-bearing masonry beyond normal settlement tolerances |
| On-Time Handover | Delivery date committed in the construction contract with a written penalty clause if missed without valid reason |
| Zero Material Substitution | All BOQ-specified materials are the materials used. Any change requires written client sign-off before implementation |
Deep operational experience — BBMP sanction processes, reliable material supplier relationships, skilled structural labour networks across Bengaluru.
Proven track record across every structural type — single-floor, G+1, G+2, G+3, villa, duplex, commercial block, PG building.
Structural execution at every scale — from 1,200 sq ft independent houses to 56,897 sq ft corporate campuses.
No other construction company in Bangalore we know of offers this in writing — a meaningful differentiator, not a marketing claim.
Residential homeowners, commercial developers, and corporate clients — including Sattva Group, Capgemini, Concorde Group, and Geown.
Recognized for construction quality, structural reliability, and project delivery accountability.
Every OSBS construction package covers the complete civil work — structural framework, MEP services, flooring, painting, and finishing — at a single fixed price per square foot. No separate quotes for electrical, plumbing, or painting. No hidden additions after the contract is signed.
Budget-friendly package with all construction essentials.
Top Features
Our best-selling package with upgraded brands.
Modern living with premium finishes and features.
Ultimate plan with high-end finishes & amenities.
Every OSBS construction project follows a milestone-based process with stage-wise payments tied to each physical completion point. You pay only when each stage is visibly complete and confirmed — no bulk advance payments.
Structural engineer visits your plot. Soil bearing capacity test conducted to determine foundation type (isolated footing, raft, or pile). Client receives: soil test report, foundation recommendation, and preliminary cost estimate for your specific plot.
2D floor plan, structural engineering drawings (column and beam layout, slab design), electrical and plumbing schematic, and full 3D elevation rendering. Client approves all drawings before any physical work starts. Vastu compliance incorporated on request.
OSBS files and manages the complete BBMP plan sanction — application preparation, document submission, liaison with BBMP officials, and receipt of sanctioned plan. BDA documentation and RERA registration also managed where applicable. Client does not visit any government office. Typical timeline: 30–90 days.
Excavation to designed depth, PCC (Plain Cement Concrete) bed laying, footing/raft foundation casting with ISI-certified steel and cement, plinth beam casting, anti-termite treatment. Stage payment released on physical completion of foundation. Materials verified against BOQ on arrival.
RCC column casting (floor by floor), beam casting, roof/floor slab casting, staircase construction, brick masonry and lintel work. Primary structural stage — all materials ISI-certified and BOQ-verified. Stage payment released floor-by-floor as each slab is cast.
All concealed services installed before plastering: electrical conduit and Finolex wiring, plumbing pipes, drainage lines, switchboard rough-in. Solar water heater provision, EV charging point, and copper gas line done at this stage (package-dependent). Nothing is broken open after plastering at OSBS sites.
External and internal plastering, floor tiling (per package specification), Asian Paints painting (finish level is package-dependent), CP fitting installation (Jaquar for Premium and above), door and window fitting, final electrical connections, grille installation, and full site cleanup. Client QC walkthrough conducted. Written 50-year structural warranty document issued. Keys handed over.
Every organization listed below conducted a formal vendor quality and compliance assessment before awarding their project to OSBS.
| What You Care About as a Plot Owner | Typical Contractor / Builder | OSBS |
|---|---|---|
| Price certainty | Verbal estimate that changes mid-build — 20–40% overruns are common | Written BOQ with locked price — changes only with your written consent |
| Structural warranty | None, or 1-year defect liability period only | 50-year structural warranty on foundation, columns, beams, and slabs — in writing |
| Material verification | Verbal brand promise — substitutions happen without notice | ISI-certified materials verified against BOQ when they arrive at your site |
| Cost overrun risk | High — additional charges appear at finishing stage | Zero — any scope change requires your written approval before work proceeds |
| Site supervision | Shared site manager across 5–10 concurrent projects | Dedicated structural site engineer — your project only, every day |
| BBMP approvals | You manage — multiple visits, follow-ups, documentation | Fully managed by OSBS — you visit zero government offices |
| 3D design before construction | Rare at this price point — usually an upsell | Included in all packages from ₹1,950/sqft |
| Stage-wise payments | Bulk advance demanded upfront — common among small contractors | Stage payments tied to physical milestones — you pay when work is visibly complete |
| Verifiable client references | 'Ask my other clients' — usually unverifiable | Sattva Group, Capgemini, Concorde Group, Geown — public organizations, verifiable projects |
Om Sai Building Solutions is based in Marathahalli and provides residential and commercial construction services across Bengaluru Urban and Bengaluru Rural districts. Our site teams are currently active in the following areas:
Plot outside these areas? Contact OSBS — we assess construction feasibility across the Bengaluru Urban and Bengaluru Rural districts. Availability confirmed within 24 hours of receiving your site details.
Take a look at some of our ongoing and completed structural executions.
Completed
Ultra Premium — ₹2,895/sqft
Built-up Area: 3,200 sq.ft | G+2 Structure
Ongoing Execution
Standard — ₹2,100/sqft
Built-up Area: 2,400 sq.ft | G+1 Structure
Completed
Premium — ₹2,450/sqft
Built-up Area: 5,500 sq.ft | G+3 Structure
Completed
Concorde Napa Valley
Built-up Area: 4,100 sq.ft | Full Civil Execution
House construction in Bangalore with Om Sai Building Solutions costs between ₹1,950 per sq ft (Basic package) and ₹2,895 per sq ft (Ultra Premium package). The Basic package covers essential construction with Fe550 steel, branded cement, 10ft ceiling height, and flooring up to ₹50/sqft. The Ultra Premium package includes TATA or Jindal steel, Ramco cement, marble flooring up to ₹160/sqft, EV charging provision, smart door lock, copper gas connection, and Royale Luxury paint finish. All packages include complete civil work from soil testing to final handover.
A full-service construction company in Bangalore should cover: soil testing and foundation design, architectural 2D and 3D planning, BBMP plan sanction, excavation, foundation (substructure), RCC framework and masonry (superstructure), MEP services (electrical, plumbing, drainage), plastering, flooring, painting, door and window fitting, and final handover. At OSBS, all of these stages are managed under a single fixed-price contract by one in-house team.
A standard G+1 independent house (1,200–2,400 sq ft) takes 9–12 months with OSBS from BBMP plan sanction to key handover. A G+2 structure (2,400–4,000 sq ft) takes 12–16 months. A G+3 multi-unit building typically takes 15–20 months. All timelines are committed in the construction contract and backed by a written on-time handover guarantee with a penalty clause if the timeline is missed.
OSBS provides a 50-year structural warranty on all construction projects — covering the complete structural framework including foundation, RCC columns, beams, floor slabs, and load-bearing walls from the date of handover. Any structural defect arising from workmanship or material failure is rectified at zero cost to the client. This warranty applies to all construction packages from Basic to Ultra Premium.
Yes. OSBS manages the complete BBMP plan sanction process — from application preparation and document filing to follow-up with BBMP officials and receipt of the sanctioned plan. BDA documentation and RERA registration are also handled where applicable. Clients do not need to visit any government office. The BBMP sanction process typically takes 30–90 days depending on plot size, zone classification, and current processing volume.
Material brands depend on the package selected. Steel: Fe550 grade for Basic and Standard packages; JSW or Jindal Steel for Premium; TATA or Jindal Steel for Ultra Premium. Cement: Bharathi Cement for Basic; Chettinad Cement for Standard; ACC or Dalmia for Premium; Ramco for Ultra Premium. Electrical wiring is Finolex across all packages. All materials are ISI-certified and verified against the client's approved Bill of Quantities when they arrive at the site.
Yes. A soil bearing capacity test is conducted at your site by OSBS's structural engineer before the foundation design is finalized. The test determines the appropriate foundation type — isolated footing, combined footing, raft foundation, or pile foundation — based on actual site soil conditions. The soil test report is shared with the client and used to finalize the structural design.
Yes. OSBS handles floor addition construction on existing residential buildings in Bangalore. A certified structural engineer first evaluates the load-bearing capacity of the existing foundation and columns. If the existing structure requires retrofitting to support additional floors, OSBS manages this as part of the project scope. The new floor construction is covered under the standard 50-year structural warranty.
A dedicated structural site engineer is assigned exclusively to each OSBS project for full-time daily supervision of civil work, material delivery verification, and labour quality control. Senior Project Managers conduct quality audits twice weekly. Executive management conducts monthly structural inspections. All material deliveries — steel, cement, aggregates, and wiring — are verified against the client's approved BOQ before being used in construction.
Om Sai Building Solutions provides residential and commercial construction services across Bengaluru including Marathahalli, Whitefield, HSR Layout, Sarjapur Road, Bellandur, Electronic City, Varthur, Koramangala, Indiranagar, Hebbal, Jayanagar, JP Nagar, Bannerghatta Road, Yelahanka, Outer Ring Road corridor, and Devanahalli. Contact OSBS to confirm availability for your specific plot — most Bengaluru Urban locations can be confirmed within 24 hours.
750+ plot owners across Bangalore have chosen OSBS to build their homes — residential and commercial — within the contracted price, on the committed timeline, and backed by a 50-year structural warranty that no other construction company in Bangalore matches.
OSBS Assistant - SIA