Birla Trimaya Phase 4, officially positioned by Birla Estates as “The Bay,” is the latest residential phase within the larger Birla Trimaya township in Devanahalli, North Bangalore. The phase introduces a water-oriented lifestyle concept built around a central man-made water body, landscaped open spaces, premium apartments, duplex residences and access to the wider township’s social and recreational infrastructure.

The larger Birla Trimaya development spans approximately 52 acres in Devanahalli near Kempegowda International Airport. According to Birla Estates, Phase 4 introduces a central water feature intended to become an important visual and lifestyle anchor within the overall development.

Current RERA-linked market information places Phase 4 across approximately 7.04 acres, with 7 residential buildings and 548 homes. Apartment options currently include 1, 2, 3 and 3.5 BHK residences along with premium 4.5 BHK duplex homes, with published sizes ranging from approximately 485 sq ft to 2,551 sq ft. Prices currently start from approximately ₹68.83 lakh* and extend to around ₹3.62 crore* for larger duplex inventory.

Buyers researching Birla Trimaya phase 4 should differentiate this latest phase from the earlier Birla Trimaya phases because RERA registration, possession, unit sizes and pricing are phase-specific.

Birla Trimaya Phase 4 Project Overview

Birla Estates officially confirms that Phase 4 is registered with Karnataka RERA under PRM/KA/RERA/1250/303/PR/290126/008436, dated 29 January 2026. The developer also clarifies that Phase 4 forms part of a larger layout and that common areas and amenities will be developed in phases.

Buyers can also review the detailed Birla Trimaya phase 4 Project Details before comparing individual units.

The development can particularly appeal to:

• Professionals working in North Bangalore
• Airport-linked executives
• Families seeking integrated township living
• Buyers looking for 1 or 2 BHK entry options
• Families upgrading to premium 3 or 3.5 BHK homes
• HNIs considering duplex residences
• Long-term real estate investors
• Buyers comfortable with a 2031 possession horizon

Birla Trimaya Phase 4 Price in 2026

The Birla Trimaya Phase 4 Price currently starts from approximately ₹68.83 lakh*.

Recent RERA-linked market information shows an average quoted price of approximately ₹14,200 per sq ft, with the overall inventory ranging from approximately ₹68.83 lakh to ₹3.62 crore.

Buyers should review the latest Birla Trimaya phase 4 Price because prices can change according to inventory, floor, configuration and tower.

Current Indicative Configuration-Wise Pricing

These are current market reference values rather than guaranteed final selling prices.

Why Can Birla Trimaya Phase 4 Prices Vary?

Even apartments with the same number of bedrooms can have different costs because of:

• Apartment size
• Floor level
• Tower
• View
• Lake orientation
• Corner location
• Balcony orientation
• Floor-rise charges
• Preferred-location charges
• Parking
• Current inventory release
• Payment plan

A higher-floor residence overlooking the water body or central landscape may command a premium over an inward-facing or lower-floor apartment.

Base Price vs Total Acquisition Cost

Buyers should avoid budgeting only according to the headline price.

Housing.com’s current Phase 4 brochure information specifically states that quoted prices exclude costs such as maintenance, floor-rise charges, stamp duty, registration and GST.

A final cost sheet may therefore contain:

1. Basic apartment value
2. Floor-rise charges
3. Preferred-location charges
4. Parking
5. Clubhouse charges
6. Maintenance advance
7. Corpus fund
8. Infrastructure charges
9. GST where applicable
10. Stamp duty
11. Registration charges
12. Documentation expenses

Which Configuration May Offer Better Value?

1 BHK

A 1 BHK can appeal to:

• Single professionals
• Couples
• Investors
• Frequent airport travelers
• Buyers wanting the lowest entry ticket

2 BHK

A 2 BHK may provide better flexibility for:

• Small families
• End-users
• Investors
• Buyers planning medium-term occupancy

3 BHK

The 3 BHK segment can suit:

• Growing families
• Work-from-home households
• Long-term residents
• Buyers seeking better resale appeal

3.5 BHK

The extra half-room can function as:

• study
• office
• guest room
• children’s activity room

4.5 BHK Duplex

The duplex format is positioned at the premium end.

It may appeal to:

• HNIs
• large families
• multi-generational households
• buyers seeking villa-like internal planning within a managed township

The best value is therefore not automatically the lowest-priced apartment. Buyers should compare long-term usability.

Birla Trimaya Phase 4 Floor Plans and Master Plan

The Birla Trimaya Phase 4 Floor Plans provide one of the broadest configuration mixes within the current Devanahalli market.

Housing.com currently lists Phase 4 sizes between approximately 485 sq ft and 2,551 sq ft.

Buyers can explore the Birla Trimaya phase 4 Floor Plans before choosing a unit.

Current Floor Plan Size References

Current listings show approximately:

• 1 BHK – 485 sq ft
• 2 BHK – 803 sq ft
• 3 BHK – 1,052 sq ft
• Larger 3.5 BHK formats
• 4.5 BHK duplex homes extending up to 2,551 sq ft

These figures should be interpreted carefully because property portals may display carpet-area or other area references rather than a single uniform saleable-area definition.

1 BHK Floor Plan

The entry-level apartment is suitable for buyers prioritizing efficiency.

Check:

• bedroom width
• living area
• kitchen layout
• balcony
• bathroom location
• storage

2 BHK Floor Plan

The 2 BHK can provide:

• two bedrooms
• living and dining
• kitchen
• bathrooms
• balcony
• utility

This category may appeal to buyers who want a family home without entering the 3 BHK price bracket.

3 BHK Floor Plan

The 3 BHK is likely to be one of the most family-oriented configurations.

A good 3 BHK should offer:

• spacious living and dining
• three practical bedrooms
• multiple bathrooms
• utility
• balcony
• usable circulation

3.5 BHK Floor Plan

The additional flexible room can add considerable functionality for remote-working households.

4.5 BHK Duplex

The duplex residences are the flagship product.

Potential advantages include:

• two-level planning
• clearer separation between private and social spaces
• larger living areas
• premium family functionality
• villa-like experience

What Should Buyers Check?

Always compare:

• RERA carpet area
• built-up/saleable area
• loading
• balcony size
• usable floor area
• common walls
• room dimensions
• lift position
• floor orientation
• ventilation
• natural light

Birla Trimaya Phase 4 Master Plan

The Birla Trimaya phase 4 Master Plan forms part of the larger approximately 52-acre Birla Trimaya township.

Birla Estates officially describes Phase 4 as The Bay, with a man-made central water body serving as a key geographic and experiential anchor.

Current Master Plan Highlights

Current market information highlights:

• 7 residential buildings
• 548 residences
• 73% open green-space positioning
• 2.5-acre central lake
• lagoon and pavilion zones
• clubhouse
• cricket ground
• landscaped spaces

Why the Water Body Matters

The central water feature can potentially improve:

• views
• visual openness
• landscape quality
• internal microclimate
• project identity

However, buyers should remember that Birla Estates explicitly states that development visuals are conceptual and that common areas will be completed in phases.

Phase 4 vs Wider Township

One of the biggest mistakes buyers can make is confusing the Phase 4 master plan with the entire Birla Estates Trimaya township.

The broader project has multiple previously registered phases and buildings.

Phase 4 has its own:

• RERA registration
• 548 homes
• phase-specific area
• possession schedule
• pricing
• unit mix

This distinction is critical when reviewing property documents.

Birla Trimaya Phase 4 Location: Devanahalli, KIAL & Airport Corridor

The Birla Trimaya Phase 4 Location is at Shettigere Main Road in the Devanahalli-North Bangalore airport corridor.

The broader Birla Trimaya development is positioned next to the KIAL growth corridor and benefits from proximity to Kempegowda International Airport.

Buyers can review the detailed Birla Trimaya phase 4 Location before planning a visit.

Major Connectivity Drivers

The location provides access toward:

• Kempegowda International Airport
• Devanahalli
• Airport Road
• Shettigere
• Doddajala
• Yelahanka
• Hebbal
• North Bangalore business corridors

Airport Proximity

Current broader Birla Trimaya market listings place the township within approximately 5 km of Kempegowda International Airport.

This can particularly appeal to:

• frequent flyers
• aviation professionals
• corporate executives
• NRIs
• airport-linked business owners

Why Devanahalli Continues to Attract Residential Development

The location is influenced by:

• airport growth
• commercial projects
• logistics
• aerospace activity
• hospitality
• warehousing
• infrastructure expansion
• new residential townships

This creates a broader growth ecosystem rather than dependence on a single residential factor.

Doddajala and Railway Connectivity

Current broader township data places Doddajala Railway Station approximately 5.5 km away.

Future transit improvements can strengthen the corridor further.

Upcoming Metro Influence

Airport metro connectivity is also an important long-term mobility driver for North Bangalore.

Potential benefits include:

• better airport connectivity
• lower dependence on private vehicles
• access toward Hebbal
• better rental attractiveness

However, buyers should distinguish currently operational infrastructure from future or under-construction sections.

Social Infrastructure

The Devanahalli corridor provides access to:

• Akash International School
• Sterling English School
• Akash Hospital
• New Manasa Hospital
• local retail
• hotels
• airport-oriented commercial development

Location Trade-Off

Birla Trimaya offers:

• airport proximity
• township scale
• open spaces
• future growth potential

but buyers working daily in:

• Electronic City
• Whitefield
• central Bengaluru

should personally test their commute.

The best investment location is not necessarily the best daily-living location for every household.

Birla Trimaya Phase 4 Amenities, Lake Lifestyle & Gallery

The Birla Trimaya Phase 4 Amenities package is designed around the wider township’s nature, recreation and lifestyle positioning.

Buyers can explore the Birla Trimaya phase 4 Amenities while comparing the project with competing North Bangalore developments.

Current Highlighted Amenities

Current Phase 4 market listings identify:

• 21,000+ sq ft clubhouse
• 2.5-acre central lake
• lagoon with pavilions
• cricket ground
• swimming pool
• gymnasium
• children’s play area
• yoga and meditation area
• skating rink
• gazebo
• landscaped spaces

21,000+ sq ft Clubhouse

The clubhouse is expected to become an important social and wellness hub.

Potential uses include:

• gym
• indoor recreation
• resident events
• social lounge
• fitness
• wellness

Central Lake

The 2.5-acre central lake is among Phase 4’s strongest lifestyle differentiators.

Possible benefits include:

• water-facing views
• walking environment
• landscape character
• visual openness
• premium tower positioning

Lagoon and Pavilions

The lagoon and pavilion concept reinforces the “Bay” theme.

This helps Phase 4 distinguish itself from conventional tower-and-podium developments.

Sports Amenities

Current information includes:

• cricket
• skating
• swimming
• fitness
• yoga

Families with children may find the broad recreation mix particularly useful.

Green-Space Positioning

Current listings refer to approximately 73% open green space.

Buyers should nevertheless ask what is counted within this percentage, including:

• roads
• setbacks
• landscaped areas
• water body
• open recreational spaces

Birla Trimaya Phase 4 Gallery

The Birla Trimaya phase 4 Gallery can help buyers understand:

• tower elevation
• water body
• landscapes
• apartments
• clubhouse
• common areas
• duplex interiors

Birla Estates specifically cautions that project walkthrough videos and renders are conceptual and that amenities and specifications will be governed by the Agreement for Sale.

Buyers should distinguish between:

• CGI render
• artist impression
• actual construction photograph
• sample flat
• final delivered specification

Site Visit Checklist

During your visit:

• Identify Phase 4 separately.
• Confirm the Phase 4 tower.
• Check lake orientation.
• Review current construction.
• Test airport travel.
• Inspect Shettigere Main Road.
• Understand earlier phase development.
• Check school access.
• Check hospital access.
• Review future township construction zones.

Buyers can use the Birla Trimaya phase 4 Contact page for current inventory and site-visit information.

Birla Trimaya Phase 4 RERA Number, Builder Profile & Investment Potential

The Birla Trimaya Phase 4 Rera Number is:

PRM/KA/RERA/1250/303/PR/290126/008436

It was registered on 29 January 2026. Birla Estates confirms this directly on its official project disclaimer.

Buyers can review the dedicated Birla Trimaya phase 4 Rera Number page before independently checking Karnataka RERA.

Current Phase 4 RERA/Market Snapshot

• Phase: Birla Trimaya Phase 4
• Branding: The Bay
• RERA: PRM/KA/RERA/1250/303/PR/290126/008436
• Phase Area: Approx. 7.04 acres
• Buildings: 7
• Units: 548
• Current Possession: December 2031
• Configuration: 1, 2, 3, 3.5 & 4.5 BHK Duplex

Important Phase-Wise RERA Point

The larger Birla Trimaya township has other RERA registrations belonging to earlier phases.

Housing.com lists earlier township registrations including:

• PRM/KA/RERA/1250/303/PR/300823/006200
• PRM/KA/RERA/1250/303/PR/040924/006988

These should not be used as the Phase 4 RERA number.

About Birla Estates

Buyers can review the Birla Trimaya phase 4 About Builder page to understand the developer.

Birla Estates is part of the Aditya Birla Group’s real estate platform and has expanded into residential development across major Indian cities.

Buyers comparing Birla Estates projects should consider:

• location
• configuration
• RERA
• possession
• pricing
• development scale

Is Birla Trimaya Phase 4 a Good Investment in 2026?

Potential positives include:

1. Airport Corridor

The project benefits from Devanahalli’s long-term airport-led development.

2. Large Township

A 52-acre community can provide better destination value than a standalone apartment block.

3. RERA Registration

Phase 4 has clear phase-specific registration.

4. Wide Configuration Mix

From 1 BHK to luxury duplexes, the project addresses several buyer groups.

5. Water-Oriented Planning

The Bay identity and lake concept help differentiate Phase 4.

6. Birla Brand

Developer recognition can support buyer confidence and future resale recall.

Investment Risks

Buyers should equally consider:

• December 2031 possession horizon
• competing North Bangalore supply
• high premium-unit ticket sizes
• future maintenance expenses
• rental-market maturity
• home-loan interest
• phase-wise amenity delivery

No appreciation percentage should be considered guaranteed.

1 BHK vs 3 BHK Investment

A 1 BHK can provide:

• lower initial investment
• larger affordability pool
• potential airport-linked tenant demand

A 3 BHK can potentially provide:

• stronger family demand
• higher long-term end-user appeal
• larger resale ticket

The correct choice depends on the buyer’s investment strategy.

Frequently Asked Questions About Birla Trimaya Phase 4

1. What is Birla Trimaya Phase 4?

Birla Trimaya Phase 4, officially called The Bay, is the latest residential phase within the approximately 52-acre Birla Trimaya township in Devanahalli. Current market data shows around 7.04 acres, seven buildings and 548 homes.

2. What is the Birla Trimaya Phase 4 Price?

Current prices start from approximately ₹68.83 lakh* for 1 BHK apartments. 2 BHK homes currently start near ₹1.14 crore, 3 BHK near ₹1.49 crore, 3.5 BHK near ₹1.63 crore and 4.5 BHK duplex homes around ₹3.62 crore.

3. What configurations are available?

Current market inventory includes 1, 2, 3 and 3.5 BHK apartments together with premium 4.5 BHK duplex residences.

4. How many homes are there in Phase 4?

Birla Trimaya Phase 4 currently comprises 548 residences across seven buildings.

5. What is the Birla Trimaya Phase 4 RERA Number?

The Karnataka RERA number is PRM/KA/RERA/1250/303/PR/290126/008436, registered on 29 January 2026.

6. What is the possession date?

Current RERA-linked market information lists possession from approximately December 2031. Buyers should confirm the exact contractual date in the Agreement for Sale.

7. Where is Birla Trimaya Phase 4 located?

The project is located on Shettigere Main Road in Devanahalli, North Bangalore, within the Kempegowda International Airport growth corridor.

8. What is special about Phase 4?

Phase 4 is branded The Bay because it is designed around a central man-made water body. The phase also benefits from the larger Birla Trimaya township environment.

9. Is Birla Trimaya Phase 4 a good investment?

The project can appeal to long-term buyers because of its Devanahalli location, airport proximity, Birla Estates branding, township scale and phase-specific RERA registration. However, buyers should assess price, 2031 possession, future supply and expected rental demand before investing.

Conclusion

Birla Trimaya Phase 4 – The Bay represents an important new residential addition to the larger Birla Trimaya township in Devanahalli.

Its current key highlights include:

• Birla Estates development
• Phase 4 branded as The Bay
• Part of an approx. 52-acre township
• Approx. 7.04-acre Phase 4 development
• Seven buildings
• 548 residences
• 1, 2, 3, 3.5 & 4.5 BHK duplex options
• Approx. 485–2,551 sq ft current size range
• Current prices from approximately ₹68.83 lakh*
• Current average quoted rate around ₹14,200/sq ft*
• 2.5-acre central lake positioning
• 21,000+ sq ft clubhouse
• Approx. 73% open green-space positioning
• RERA No. PRM/KA/RERA/1250/303/PR/290126/008436
• Current possession around December 2031
• Devanahalli location
• Kempegowda International Airport connectivity

For end-users, the strongest proposition is the combination of multiple apartment configurations, water-oriented landscape planning and access to a large integrated township.

For investors, Devanahalli’s airport-driven development story, branded residential supply and improving connectivity provide long-term fundamentals.

Before booking Birla Trimaya Phase 4, verify:

• Phase 4 RERA number
• Current apartment availability
• RERA carpet area
• Saleable/built-up area
• Tower
• Floor
• lake orientation
• floor-rise charge
• parking
• clubhouse cost
• maintenance
• payment schedule
• construction status
• possession commitment
• Agreement for Sale

A physical site visit is strongly recommended to understand the Phase 4 site separately from earlier phases and to assess airport connectivity, current township development and the actual orientation of the apartment being considered.

For buyers comparing Upcoming Residential Projects in Bangalore, Birla Trimaya Phase 4 deserves consideration as a RERA-registered North Bangalore project offering everything from compact 1 BHK apartments to large duplex residences inside a 52-acre township environment.