The Thane–Borivali twin tunnel is under construction, with completion expected around 2028 (some reports say it could slip into 2029). Better connectivity usually supports housing demand, but no one can promise how much prices will rise. The Borivali East end of the tunnel is likely to feel the most direct effect, while Borivali West can benefit from the wider connectivity. Treat the tunnel as one supporting factor, not the only reason to buy.
Every few years, a big road or rail project changes how buyers see a neighbourhood. The Thane–Borivali twin tunnel is one of those projects for the western suburbs.
If you are weighing Borivali property investment today, it helps to separate what is confirmed from what is only expected. This guide does exactly that, in simple terms.
What is the Thane–Borivali twin tunnel?
It is a twin-tube road tunnel of about 11.8 km that passes beneath Sanjay Gandhi National Park. It links Ghodbunder Road in Thane with the Western Express Highway side of Borivali. The Mumbai Metropolitan Region Development Authority (MMRDA) is building it.
At the foundation-stone event in July 2024, the government described the project as worth about ₹16,600 crore. It said the tunnel would shorten the Thane–Borivali route by around 12 km and save up to about an hour of travel time.
What is confirmed and what is still an estimate?
| Point | Status |
|---|---|
| Tunnel is under construction | Confirmed |
| Length of about 11.8 km, beneath Sanjay Gandhi National Park | Confirmed |
| Foundation stone laid in July 2024 | Confirmed |
| Completion around 2028 | Estimate, some reports mention 2029 |
| Final cost | Reported figures vary between roughly ₹16,600 crore and ₹18,800 crore |
| Travel time saving | Official claim at launch, actual savings will be clear after opening |
Progress reports also differ. One project tracker puts physical progress at about 13% as of July 2026. Check the latest MMRDA update before you rely on any date.
What would the Borivali-Thane Tunnel impact look like?
The main change is travel time. Today, going between Thane and Borivali means long drives on congested roads. A direct underground link can make that trip shorter and more predictable.
For homebuyers, that matters in three ways:
- Shorter commutes between the two suburbs, which widens the area people are willing to live in.
- Better access to jobs and business districts on both sides.
- More buyer interest in the neighbourhoods near the tunnel's ends and along the routes that feed into it.
How infrastructure affects prices
A new road or tunnel does not raise prices by itself. What it does is change demand. When a location becomes easier to reach, more buyers consider it, and that interest can support prices over time. When you look at the infrastructure impact on property prices across Mumbai, the results vary by location, timing and how much of the news was already in the price.
That last point is important. Prices often start moving when a project is announced or begins, well before it opens. By the time a tunnel is finished, part of the gain may already be reflected in the market. The tunnel is also only one piece of the upcoming infrastructure in Mumbai, so it should be viewed together with other projects, not on its own.
East versus West: who feels it first?
The tunnel's Borivali end is on the East side, near the Western Express Highway. That makes the direct effect easier to see there. Borivali West sits across the railway line, so its gains are more indirect, through easier regional access and general demand for the suburb.
| Area | Link to the tunnel | What buyers should expect |
|---|---|---|
| Borivali East, near the highway | Direct, close to the Borivali end | Likely the clearest connectivity benefit |
| Borivali West | Indirect, through wider access | Benefit depends on its own strengths and demand |
| Thane, along Ghodbunder Road | Direct, at the Thane end | Strong interest from buyers looking at the western link |
For anyone thinking about Borivali West investment, the tunnel is a helpful extra. The suburb's long-term appeal rests on more than one project.
What else drives appreciation?
If you look at property appreciation in Borivali over the past few years, no single factor explains it. These usually matter together:
- Location and daily convenience: railway station access, roads, schools, hospitals and markets.
- Project quality: construction standard, layouts, amenities and upkeep.
- Builder track record: past deliveries, transparency and legal clarity.
- Possession timelines: a project that is delivered on time holds value better than one that is delayed.
- Market cycle: interest rates and overall demand in Mumbai.
Should you wait for the tunnel to open?
There is no single right answer. Buying early may mean paying before the benefit is visible, and you take on the risk of delays. Waiting for the opening may mean a higher price if the market has already moved. A more useful question is whether the home suits your own needs today, such as commute, budget, family and possession date. If it does, the tunnel becomes a bonus.
A simple checklist before you decide
- Confirm the latest tunnel status from MMRDA or official announcements.
- Check the project's RERA registration and possession date.
- Compare nearby projects on price per sq ft and amenities, not only on distance from the tunnel.
- Visit at peak hours to see real traffic and access.
- Plan your budget around your own use, and treat appreciation as a possible bonus.
Where Bhatia Builders fits in
Bhatia Builders has worked in Mumbai since 1987, is ISO 9001:2015 certified and is a CREDAI-MCHI member. Its residential tower Auriga 9 is a 36-storey project on SV Road in Borivali West. On the Borivali East side, the group's commercial project Esspee Square is closer to the tunnel's Borivali end.
If you are comparing homes in Borivali, decide first what you need from the home, such as size, budget and possession date, then judge how much the tunnel adds. A well-located, well-built project with a clear timeline makes sense with or without the tunnel, and it is the sound basis for any Borivali property investment.
Frequently Asked Questions
When will the Thane–Borivali tunnel be ready? It is under construction, and completion is expected around 2028. Some reports say it could extend into 2029, so check the latest MMRDA update.
How much time will the tunnel save? At the July 2024 foundation-stone event, the government said it would shorten the route by about 12 km and save around an hour of travel. Actual savings will depend on traffic and speeds after it opens.
Will the tunnel increase property prices in Borivali? Better connectivity generally supports demand, which can support prices. The size and timing of any rise cannot be predicted, and some of the benefit may already be in current prices.
Which side of Borivali benefits more? The Borivali end of the tunnel is on the East side near the Western Express Highway, so the effect is likely to be more direct there. Borivali West benefits more indirectly through wider connectivity.
Is it too late to buy before the tunnel opens? Not necessarily. Whether it is the right time depends on your budget, your need for a home and the project's quality and possession date, more than on the tunnel alone.