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Nippon Building Fund Inc.: Business Overview, Financials & Competitive Analysis

Nippon Building Fund Inc. scores 6/10 on the AskCyborg Cyborg Score (Mixed). Established market leader in Japanese office REITs with stable dividends, but facing industry-wide challenges from changing workspace dynamics and rising borrowing costs. NBF benefits from market leadership and strong Tokyo presence, but faces headwinds from decreasing revenues, rising expenses, and occupancy challenges in newly acquired properties. Recent financing.

What is Nippon Building Fund Inc.'s industry? Nippon Building Fund Inc. (nbf-m.com) operates in Real Estate Investment Trust (J-REIT). AskCyborg classifies Nippon Building Fund Inc. under Real Estate Investment Trust (J-REIT) in its company registry.

NBF is Japan's largest real estate investment trust (J-REIT) which invests in office buildings primarily in Tokyo as well as nationwide. NBF pursues the increase of unitholder value by establishing a highly competitiv...

6/ 10Mixed

Cyborg Score thesis

Established market leader in Japanese office REITs with stable dividends, but facing industry-wide challenges from changing...

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Industry Real Estate Investment Trust (J-REIT)
3 named competitors
3 recent developments
11 analyst dimensions
Synthesized from analyst-debate stress-testing across 11 dimensions and hundreds of data points. Methodology →
Cyborg Score recalibrated: September 14, 2026
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What's in This Report
Nippon Building Fund Inc. OverviewStrategic ProfileCompetitive LandscapeIndustry ContextKey facts
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Nippon Building Fund Inc. Overview

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NBF is Japan's largest real estate investment trust (J-REIT) which invests in office buildings primarily in Tokyo as well as nationwide. NBF pursues the increase of unitholder value by establishing a highly competitive portfolio primarily in the 23 wards of Tokyo.

Strategic Profile

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As NBF's asset management company, NBFM is engaged in acquiring, managing, leasing, and renovating office properties. Mitsui Fudosan Co., Ltd. currently owns 46% of NBFM while Sumitomo Life Insurance Company owns 35% and the remaining 19% is mainly owned by financial institutions.

Competitive Landscape

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NBF is the largest, office-specialized J-REIT, mainly sponsored by Mitsui Fudosan Co., Ltd. It competes with other major Japanese office REITs including Japan Real Estate Investment Corporation, Japan Metropolitan Fund, ORIX JREIT, and Daiwa Office Investment Corporation.

Industry Context

Nippon Building Fund Inc. operates in Real Estate Investment Trust (J-REIT).

Key facts

Founded: 2001 · Headquarters: Tokyo, Japan

What the analysts stress-tested

The top findings that survived the multi-agent debate for Nippon Building Fund Inc..

  • NBF has 71 properties with an asset size of 1,135.5 billion Yen
  • Decreasing future operating revenues, rising expenses, and increased borrowing costs threaten to negatively impact earnings and net margins
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Recent developments

Material events tracked by the AskCyborg corpus.

  • January 2026Acquisition of Nihonbashi Honcho M-SQUARE and disposition of Sumitomo Densetsu Bldg
  • December 2025Debt financing completed
  • +1 moreTrack every material event for Nippon Building Fund Inc. as it happens. Explore monitoring →
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Named competitors

Pulled from the analyst-debate framework. Click any competitor to see their Cyborg Score.

Japan Real Estate Investment CorporationDiversified J-REIT competitor→Daiwa Office Investment CorporationOffice-focused J-REIT alternative→ORIX JREITDiversified real estate investment trust→

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Industry context

Nippon Building Fund Inc. operates in Real Estate Investment Trust (J-REIT). See how the rest of the sector scores on the Cyborg framework.

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Frequently asked questions

What does Nippon Building Fund Inc. do?+
NBF is Japan's largest real estate investment trust (J-REIT) which invests in office buildings primarily in Tokyo as well as nationwide. NBF pursues the increase of unitholder value by establishing a highly competitiv...
What is Nippon Building Fund Inc.'s Cyborg Score?+
Nippon Building Fund Inc. has a Cyborg Score of 6/10 (Mixed). The score synthesizes business model, financials, leadership, competitive position, technology, marketing, and ESG dimensions across hundreds of data points.
Who are Nippon Building Fund Inc.'s main competitors?+
Named competitors include Japan Real Estate Investment Corporation, Daiwa Office Investment Corporation, ORIX JREIT. The full competitive landscape is in the AskCyborg report.
How can I get the full Nippon Building Fund Inc. research report?+
Get the report plus analyst-debate audio at askcyborg.com -- no credit card required for preview access. Pro adds saved-company audio playlists and monitoring.
How current is the Nippon Building Fund Inc. research?+
The Cyborg Score is recalibrated weekly. Recent developments are tracked continuously and surfaced in every report.

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More Real Estate Investment Trust (J-REIT) research

Companies in the same sector and named competitors, ranked by Cyborg Score.

7Japan Real Estate Investment Corporation