Search “West Bengal property price trends” and most of what comes back is either Kolkata-only listings-site chatter or vague India-wide commentary that never actually names a West Bengal number. That’s not an accident: almost every institution that publishes a real, methodologically sound house price index in India — RBI, NHB, Knight Frank, ANAROCK — tracks Kolkata as a standalone metro, and does not publish separate index values for Siliguri, Durgapur, Asansol, Howrah, or any other West Bengal town. So a genuinely state-wide price index doesn’t exist in the public data. What follows is the most complete, honestly-sourced picture available: Kolkata’s price trend from the indices that do exist, read as a proxy for West Bengal’s urban core rather than the whole state.
RBI’s House Price Index: Kolkata is one of 18 tracked cities
The Reserve Bank of India publishes a quarterly House Price Index (HPI) built from actual registered transaction data across 18 major cities, with 2022-23 as the base year — Kolkata is the only West Bengal city in that basket. The quarter-by-quarter picture through 2025-26 has been uneven for Kolkata specifically:
- In Q2 2025-26 (Jul-Sep 2025), RBI’s all-India HPI actually declined 0.6% quarter-on-quarter (from 113.4 to 112.7), and the decline was reported as being “contributed largely by Kolkata, Chennai and Lucknow” — meaning Kolkata was one of the cities pulling the national index down that quarter.
- By Q1 2026-27 (Apr-Jun 2026), the all-India index had risen again to 117.5, a 1.1% sequential gain — but that quarter’s gains were attributed to Chandigarh and Lucknow, not Kolkata.
- For the Q4 2025-26 print, all-India HPI growth was reported at a 4.2% year-on-year pace, with growth “primarily driven by cities such as Nagpur, Jaipur, Chandigarh and Kanpur” — again, Kolkata wasn’t called out as a growth driver.
Read together, the RBI data through 2025-26 doesn’t show Kolkata as a standout gainer in any quarter — it shows a city with a flatter, choppier trajectory than the national average, and a quarter (Q2 2025-26) where it was explicitly named as a drag. Note also that different RBI-linked reports circulating in this period cite slightly different index values for the same quarters (a common feature of a series that gets revised release to release) — treat the index level as approximate and the direction (flat-to-soft for Kolkata specifically, positive nationally) as the more reliable signal.
NHB RESIDEX: a second, partly conflicting read
The National Housing Bank’s RESIDEX is India’s other major official house price index, covering a wider set of roughly 50 cities. Its Kolkata numbers over the same broad period don’t fully agree with RBI’s:
- Kolkata’s RESIDEX reading was up 8.0% year-on-year in the release covering Q1 FY25 (Apr-Jun 2024).
- A later release covering Q4 FY25 showed Kolkata contracting 6.6% year-on-year — a sharp reversal within the same fiscal year.
- The broader 50-city RESIDEX index was up 5.0% year-on-year in the release covering Q3 FY26 (the quarter ending December 2025), and metro cities including Mumbai, Delhi NCR, Bengaluru, Hyderabad and Kolkata were described as showing “moderate but stable growth… averaging between 5-8% annually” in that period.
The swing from +8.0% to -6.6% within one fiscal year for the same city, in the same index family, is worth flagging plainly rather than smoothing over: it’s either a genuinely volatile local market, a base-effect artifact, or a data/methodology quirk in how NHB compiles that particular quarter’s registrations. We’re reporting both figures because both come from NHB’s own published releases — we can’t reconcile them into one clean number, and you should be skeptical of any source that quotes one of these figures without the other.
Knight Frank’s Kolkata numbers: the clearest single-quarter read
Of the sources checked, Knight Frank India’s quarterly India Real Estate report gives the most detailed, internally consistent snapshot of Kolkata specifically. For Q3 2025 (July-September):
| Metric | Kolkata, Q3 2025 |
|---|---|
| Residential price growth (YoY) | +8% |
| Residential price growth (QoQ) | +1% |
| Units sold | 4,374 |
| Sales growth (YoY) | +2% |
| Unsold inventory (2025, full-year figure) | 19,630 units, down 5% YoY — lowest in nearly a decade |
| Office space transacted | 0.5 million sq ft |
| Office transaction growth (YoY) | +190% (off a low base) |
| Office rental growth (YoY) | +14% — highest among the cities Knight Frank tracked that quarter |
Knight Frank attributed Kolkata’s residential price growth to “sustained end-user activity” rather than investor speculation, with buyers favouring “reputable developers and infrastructure-rich locations” — consistent with the affordable and mid-income segments reportedly performing strongest in the city.
How Kolkata compares to other major Indian metros
This is the comparison that gets asked for most often, and it is a real, sourced one — Knight Frank India’s Q3 2025 report ranked residential price growth across its tracked cities as follows:
| City | YoY price growth, Q3 2025 |
|---|---|
| Delhi NCR | +19% |
| Bengaluru | +15% |
| Kolkata | +8% |
| Mumbai | +7% |
| Pune | +5% |
Kolkata lands squarely in the middle: well behind the two hottest markets (NCR and Bengaluru), but ahead of India’s largest and most expensive market (Mumbai) and of Pune. That “steady but unspectacular” positioning shows up consistently across the sources in this piece — nobody is calling Kolkata the fastest-appreciating metro in India, but nobody is calling it a laggard either.
Registrations tell a different — and partly conflicting — story
Price indices measure appreciation per unit; registration counts measure transaction volume, and Kolkata’s volume story in 2025-26 has been more dramatic than its price story:
- Knight Frank India, working with CREDAI West Bengal and data from the West Bengal Directorate of Registrations and Stamps, recorded 30,582 apartment registrations in H1 2025 — a 43% year-on-year surge — followed by 46,742 registrations across Jan-Sep 2025, up 32% year-on-year and the highest nine-month total for the Kolkata Metropolitan Area since 2020.
- That momentum reversed into 2026: H1 2026 registrations fell to 26,207 units, down 14% year-on-year, which Knight Frank attributed to a combination of “cautious market activity” around the West Bengal assembly election period and the simple high-base effect of comparing against 2025’s exceptional surge. June 2026 alone saw 3,669 registrations — down 14% year-on-year and 21% month-on-month versus May 2026.
- Separately, ANAROCK’s primary-sales count (a different methodology — tracking new developer sales across a defined project set in the top 7 cities, rather than all registrations) put Kolkata’s 2025 unit sales at 16,125, down 12% from 18,335 in 2024.
These two pictures — a registration boom through most of 2025 per Knight Frank/CREDAI, against a primary-sales decline for the same year per ANAROCK — aren’t necessarily contradictory once you account for methodology: registrations capture resale and secondary-market activity that primary-sales counts miss entirely. But it does mean a claim like “Kolkata sales are booming” or “Kolkata sales are falling” can be defended with a real, dated source either way, depending which transaction universe that source is counting. We’re flagging both rather than picking the more flattering one.
Rental yield: a genuine bright spot, with a number that varies by source
On rental yield, most sources agree on the direction even where they disagree on the exact figure. ANAROCK’s data placed Kolkata’s gross rental yield at 5.79%, second only to Delhi among the cities it tracked as of its most recent release. At least one other industry estimate put Kolkata’s yield closer to 6.3%, ahead of Delhi. The gap between 5.79% and roughly 6.3% likely reflects different sampling (which localities, which unit sizes) and different snapshot dates rather than one source being simply wrong — but it’s large enough that we won’t quote a single decimal as the Kolkata yield. What’s consistent: Kolkata’s combination of comparatively low capital values and reasonably firm rents (helped by IT-corridor employment in the Salt Lake/New Town belt) puts it near the top of India’s major-city yield rankings on every version of this number we found.
The honest scope limitation
Every hard number in this article is Kolkata Metropolitan Area data, not West Bengal state data. That’s the actual state of public real estate research in India — Mumbai, Delhi NCR, Bengaluru, and a handful of other metros get granular, frequently-updated coverage from RBI, NHB, and the major property consultancies; Kolkata gets covered as “the West Bengal metro” in that same research; the other 22 districts of West Bengal do not get an equivalent price index from any of these sources. If you’re looking for Siliguri, Durgapur, or Asansol price trends specifically, no institutional index in this space currently publishes one — any number claiming otherwise should be treated with real skepticism until you can see its source.
For district-level land and plot rate context (as distinct from Kolkata flat prices), see this site’s district reports and land rates coverage.