How Do I Allocate an End-to-End Interior Budget for My 3BHK or 4BHK Apartment in Sarjapur, Devanahalli & Whitefield, Bangalore?
If you have a fixed number in hand say ₹25 lakhs for a 3BHK or ₹35 lakhs for a 4BHK here's the short version: your end-to-end interior budget should split roughly 25% kitchen, 20% wardrobes, 13% false ceiling and electrical, 17% living and dining, 7% painting, 8% bathrooms and miscellaneous, and 10% held back as contingency.
What that actually buys you basic, mid-range, or premium finishes depends on your total number, which is what the rest of this guide breaks down.
What Does "End-to-End Interior" Actually Include Here?
Before allocating a rupee, it helps to agree on what "end-to-end" covers. At Cohere, an end-to-end interior budget includes:
Included:
Design consultation and 3D visualization
Modular kitchen, wardrobes, and storage units
False ceiling, electrical rework, and lighting
Painting and wall finishes
Living, dining, and bedroom furniture
Project management and on-site supervision
Usually excluded (confirm with your designer):
Major appliances (refrigerator, washing machine, chimney motor upgrades)
Air conditioning units and ducting beyond basic provisioning
Curtains and blinds (sometimes quoted separately)
Loose décor, artwork, and smart-home automation
Structural or major civil work
Flooring replacement, if the builder finish is being retained
Any quote you receive should tell you explicitly which of these it covers; this is the single biggest source of "budget surprises" later in a project.
Budget by Amount: What ₹20L–₹40L Actually Buys
Rather than just a locality-wide range, here's how a fixed budget maps to a realistic finish level for a standard apartment layout:
Budget | Home Type | Finish Level | What You Get |
₹18–22 lakhs | 3BHK (1,400–1,600 sq ft) | Essential | Laminate-finish modular kitchen & wardrobes, standard false ceiling, basic furniture |
₹23–28 lakhs | 3BHK (1,500–1,800 sq ft) | Mid-range | Better hardware (soft-close), acrylic/PU shutter options, layered lighting |
₹29–35 lakhs | 3BHK/4BHK | Premium | Branded hardware, custom furniture pieces, richer material palette |
₹36–48 lakhs | 4BHK (2,200–2,800 sq ft) | Luxury | Full customisation, premium veneers/stone, extensive lighting design, statement pieces |
These are planning benchmarks, not fixed rules. A smaller 3BHK with a premium material palette can easily cross ₹30 lakhs, while a larger 4BHK finished conservatively can come in under ₹35 lakhs. Scope and material grade move the number more than square footage alone. For a deeper look at how these bands translate into per-sq-ft rates, our 3BHK/4BHK interior design cost guide has the fuller breakdown.
Room-Wise Allocation for a 3BHK (with Contingency Built In)
Here's how a ₹25-lakh, mid-range 3BHK budget typically divides with contingency allocated up front rather than treated as an afterthought:
Area | Share of Budget | Approx. Cost |
Modular Kitchen | 25% | ₹6.25 lakhs |
Wardrobes (3 rooms) | 20% | ₹5.0 lakhs |
False Ceiling & Electrical | 13% | ₹3.25 lakhs |
Living & Dining Furniture | 17% | ₹4.25 lakhs |
Painting & Wall Finishes | 7% | ₹1.75 lakhs |
Bathrooms & Miscellaneous | 8% | ₹2.0 lakhs |
Contingency | 10% | ₹2.5 lakhs |
Why these percentages? They're derived from how apartment projects in this size range typically split spend, not a fixed formula. Kitchens and wardrobes take the largest share because they involve the most hardware, carcass material, and labour hours; contingency exists because on-site realities, a socket that needs relocating, a shutter upgrade you decide on mid-project are the rule, not the exception.
Room-Wise Allocation for a 4BHK (with Contingency Built In)
For a ₹35-lakh, mid-to-premium 4BHK, the extra bedroom and larger common areas shift the split slightly:
Area | Share of Budget | Approx. Cost |
Modular Kitchen | 23% | ₹8.05 lakhs |
Wardrobes (4 rooms) | 20% | ₹7.0 lakhs |
False Ceiling & Electrical | 12% | ₹4.2 lakhs |
Living, Dining & Study | 18% | ₹6.3 lakhs |
Painting & Wall Finishes | 6% | ₹2.1 lakhs |
Bathrooms & Miscellaneous | 9% | ₹3.15 lakhs |
Contingency | 12% | ₹4.2 lakhs |
A larger home carries more coordination points, extra electrical circuits, more wardrobe units, a longer punch-list so we recommend nudging contingency up to 12% rather than 10% once you cross into 4BHK territory.
Want this mapped to your exact carpet area? Get a free room-wise interior budget estimate for your specific 3BHK or 4BHK layout before you finalize a number.
What Does ₹/Sq Ft Actually Tell You?
You'll often see interior quotes expressed as a rate per square foot typically ₹1,400–₹2,200/sq ft for mid-range work in this market. It's a useful quick filter, but it's not sufficient on its own to compare two quotes, because ₹/sq ft doesn't tell you:
Which rooms are included in that rate
Whether false ceiling and electrical are counted
What hardware and shutter finish grade is assumed
Whether furniture is included or quoted separately
Two quotes at the same ₹/sq ft rate can differ by lakhs once you compare the actual scope. Always ask for the line-item breakdown behind the number.
A Sample Bill of Quantities (BOQ) for a ₹25L 3BHK
A proper BOQ should look something like this line items, not a lump sum:
Item | Quantity/Scope | Approx. Cost |
Modular kitchen (L-shape, 10 ft run) | 1 | ₹5.8 lakhs |
Master bedroom wardrobe (8 ft, sliding) | 1 | ₹1.9 lakhs |
Bedroom wardrobes (7 ft each) | 2 | ₹2.6 lakhs |
False ceiling (living, dining, bedrooms) | ~950 sq ft | ₹2.4 lakhs |
Electrical rework & lighting fixtures | Full home | ₹0.9 lakh |
Living & dining furniture (sofa, TV unit, dining set) | 1 set | ₹3.5 lakhs |
Painting (full home) | ~2,200 sq ft wall area | ₹1.3 lakhs |
Bathroom vanities & mirrors | 2 bathrooms | ₹1.1 lakhs |
Miscellaneous (curtains rods, hardware) | — | ₹0.9 lakh |
Contingency | 10% | ₹2.5 lakhs |
Total | ₹25 lakhs |
If your quote doesn't break down this way, ask for it before you sign. It's the clearest way to know exactly what you're paying for.
Do Sarjapur, Devanahalli & Whitefield Price Differently?
Broadly, yes but treat this as a directional pattern rather than a fixed rule, since actual variance depends heavily on vendor access and site logistics for your specific building:
Sarjapur Road has a dense, competitive vendor market, which can occasionally push labour costs up slightly compared to more established micro-markets.
Whitefield has one of the deepest benches of fabricators and modular vendors in East Bangalore, which often works in your favour on kitchen and wardrobe pricing.
Devanahalli, being further from established vendor hubs, can carry a modest premium on transport and on-site logistics for larger projects.
If you're planning interiors specifically in these belts, our Sarjapur Road interior design and Whitefield interior design pages have locality-specific project examples worth a look. And since a delayed project quietly adds its own costs of storage, rent, and coordination, our piece on how long 3BHK interiors actually take is worth reading alongside your budget.
A Real Apartment Example: CK Gardens
For a sense of how this plays out on an actual project, our CK Gardens apartment, an 1,800 sq ft home that started as a fairly standard builder-finish flat was reworked around a neutral, durable material palette rather than trend-driven choices. Storage was redesigned around how the family actually used the space day to day, finishes were chosen for low maintenance rather than just looks, and the budget leaned harder into kitchen and wardrobe carpentry than into decorative elements. You can read the full before-and-after transformation, including cost details, on our blog.
How to Keep Your Budget From Slipping
Beyond the usual "get a written quote" advice, three things consistently make the biggest difference on real projects:
Freeze your material palette before execution starts, not during. Every mid-project material swap, even a "small" hardware upgrade typically costs 15–20% more than if it had been locked at the quoting stage.
Ask for your BOQ to separate "carcass" and "finish" costs. This lets you downgrade a shutter finish later without touching the wardrobe structure itself if your budget tightens mid-project.
Track contingency spend as it happens, not at the end. Homeowners who check contingency usage every 2–3 weeks rarely run out of it; those who only check at project-end almost always do.
For homeowners still deciding on the overall home plan before locking a number, our guide on planning a 3BHK or 4BHK home in Bangalore is a useful earlier step.
Frequently Asked Questions
1.Is ₹20 lakhs enough for a 3BHK interior in Sarjapur, Devanahalli, or Whitefield?
It covers an essential-tier finish, functional modular kitchen and wardrobes, standard lighting but premium hardware and full furniture typically need closer to ₹25–30 lakhs.
2.Does the contingency amount ever get refunded if unused?
If you're on a milestone-based payment structure, unused contingency simply isn't billed; you only pay for what's actually used on site.
3.Should I compare quotes using ₹/sq ft or the full BOQ?
Use ₹/sq ft only as an initial filter. Always compare the full BOQ before deciding, since scope inclusions vary widely between quotes at the same rate.
4.Which costs more furnishing in Sarjapur or Whitefield?
Sarjapur tends to run marginally higher due to vendor demand, but the difference is usually smaller than locality alone would suggest project scope matters more.
