BOQ Construction
Know exactly what you're paying. Before you sign anything.
The document most builders will never give you
A Bill of Quantities is the most important document in your construction project. It lists every single element every material, every system, every finish with brand names, grades, quantities, and costs attached to each item.
It is the document that makes a builder fully accountable for what they quoted. And it is the document that most Chennai builders will not give you because it removes their flexibility to substitute cheaper materials or add charges mid-project.
At LB Construction, every project begins with a complete BOQ. It is not a special arrangement or a premium add-on. It is how we work because it is what every client deserves.
BOQ vs a construction estimate the difference that costs lakhs
A construction estimate gives you a number. "Approximately ₹1.2 crore." It does not tell you what materials will be used, what brands will be specified, or what happens if prices change. It is a starting point not a commitment.
A Bill of Quantities is a contract. It specifies every material by name and grade, every quantity, every cost. It cannot be interpreted loosely because there is nothing loose about it. When you approve a BOQ, both you and the builder know exactly what is being built and what it costs.
The difference, on a typical Chennai residential project, is the difference between a final bill that matches your budget and one that is 30 to 40 percent higher than you expected.
What your BOQ covers
Substructure & Foundation
Foundation type, concrete grade, steel reinforcement by brand and grade, waterproofing.
Superstructure
Columns, beams, slabs concrete grade, steel specification, slab thickness, ceiling height.
Brickwork & Masonry
External and internal wall specifications, brick type, mortar specification.
Roofing & Waterproofing
Roof slab, waterproofing treatment by brand, parapet wall.
Flooring
Every area listed separately living, dining, bedrooms, kitchen, bathrooms, balcony, staircase, parking with tile brand, size, grade, and cost per sqft.
Bathroom Fittings
Brand, range, and per-bathroom budget for every fitting.
Doors & Windows
Every door listed individually by material, grade, and specification.
Electrical
Wiring brand, switch boxes per room, appliance points, distribution board specification.
Plumbing
Pipe brand and material, tank capacity and brand, sanitary provision.
Painting
Brand, number of coats, primer specification, external finish.
External Development
Compound wall, driveway, gate, external lighting.
Our BOQ process — step by step
- 01Step 01
Site visit & soil test
We visit your plot and test the soil before we prepare any cost figure. The foundation type and therefore the structural cost cannot be accurately estimated without this data.
- 02Step 02
Design finalisation
Your floor plan and specifications are confirmed. We use 3D design and VR walkthroughs to ensure you approve the design before we cost it.
- 03Step 03
BOQ preparation
A complete, line-by-line Bill of Quantities is prepared covering every category above.
- 04Step 04
Client review session
We walk through the BOQ with you every line. You ask questions. We clarify. You understand exactly what you are getting and exactly what you are paying.
- 05Step 05
Sign-off
You approve the BOQ. This is the baseline for your project. Nothing is substituted without your written approval.
- 06Step 06
Construction
We build to the BOQ. Every material delivery is verified against the specification. If any item costs less than quoted, the saving is yours.
What's included
- Line-item BOQ preparation
- Material specification locking
- Brand-level finish selection
- Open-book contracting
- Third-party quantity surveyor option
- Formal change order process
- Material delivery verification
What you receive
- Full BOQ in Excel + PDF
- Brand & model number on every line
- Locked-rate contract
- Monthly reconciliation reports
- No-substitution clause
- Client review session walkthrough
- Post-construction cost reconciliation
Asked & answered
Is GST included in the BOQ, and will I get a proper tax invoice?+
Yes. LB Construction issues fully GST-compliant invoices for every payment milestone, and GST is shown transparently in your BOQ rather than hidden inside the rate. For commercial, industrial, or factory projects, the applicable works-contract GST is 18%, and business clients building for their own commercial use should confirm input-tax-credit eligibility with their accountant.
Is the BOQ estimate free?+
Yes. LB Construction prepares a full BOQ estimate at no charge, with no obligation to proceed. The estimate is our way of demonstrating transparency before you make any commitment.
How is a BOQ different from a construction estimate?+
A construction estimate is a rough cost projection — typically a rate per sqft applied to your floor area. A Bill of Quantities is a comprehensive specification of every element in your home with exact brands, grades, quantities, and costs. A BOQ is far more reliable and holds the builder to account.
What if I want to change a specification after the BOQ is approved?+
Any change is handled through a formal change order — a documented agreement on what is changing, the cost impact, and your approval. Nothing changes without your sign-off.
Can I use LB Construction's BOQ to compare with another builder's quote?+
Yes — and this is exactly what we encourage. A BOQ from us gives you a specification baseline. You can take that specification to any other builder and ask them to price the same items. This makes the comparison meaningful.
What if material prices rise during construction?+
Our contract defines how material price movements are handled. Significant price changes in specified materials are communicated to you and handled through a formal change order that requires your approval before any additional cost is incurred.
Get your free BOQ estimate
No obligations. No hidden charges. Just a complete, honest cost breakdown for your project.