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HONGO HOUSE MANSION REBUILDING PROJECT

Tokyo 23 Wards, Bunkyo Ward, Hongo 1-chome. Above ground: 20 floors, Scheduled for completion in 10/2029。

This building is under construction. Unpublished unit counts are shown as “Unconfirmed”; other items are shown as “—”.

Total units 254 units

Building information last updated

HONGO HOUSE MANSION REBUILDING PROJECT is a high-rise condominium in Tokyo, Bunkyo Ward, Hongo 1-chome with 20 floors above ground, 1 floors below ground, 254 total units.Scheduled for completion in 10/2029.Because the building is not yet complete, listings, current amenities, and valuations are not shown.

TOWER DOSSIER / 12 FACTS

12-data-point building card

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This single card combines verified building-register facts with units identified as currently listed. Unverified information is not presented as “none.”

LocationTokyo 23 Wards, Bunkyo Ward, Hongo 1-chome Building register · checked 2026-10-12
Scheduled CompletionOctober 2029 Building register · checked 2026-10-12
Floors Above Ground20 floors Building register · checked 2026-10-12
Total units254 units Building register · checked 2026-10-12
StructureUnverified Building register
Land rightsUnverified Building register
For saleNo listing summary Site listing summary
For rentNo listing summary Site listing summary
Asking-price range— Site listing summary
Asking price per tsubo— Site listing summary
Rent range— Site listing summary
Rent per tsubo— Site listing summary

Building-register values are verified against a source for each field. Listing totals may combine buildings on the same site and use asking prices, not transaction prices. “No listing summary” does not prove that an amenity or listing does not exist.

12 Data Cards for HONGO HOUSE MANSION REBUILDING PROJECT
A shareable image containing 12 data points and their verification date.

20View from floorPredicted view(Video)

In the View Simulator, 20A recording looking 360° around from the height of floor October 15, 2026). This is a reproduction using Google Maps' 3D city model and does not show the actual view from a unit, a future view, or weather conditions.This building is not yet complete and is not included in the 3D model.

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Construction watch

Announcements, completion-schedule changes, and submitted construction photos are shown in date order without speculation.

  1. Scheduled Completion Scheduled for completion in October 2029

Construction progress photos

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Overview

Item Value
Building HONGO HOUSE MANSION REBUILDING PROJECT
Market category See the cited source for the official entry
Location (neighborhood) Hongo 1-chome
Location (street address) Tokyo, Bunkyo Ward, Hongo 1-chome
Parcel number Tokyo, Bunkyo Ward, Hongo 1-chome
Above-ground floors 20 floors above ground
Basement floors 1 floors below ground
Completion date October 2029
Total units 254 units
Construction start December 2026
Intended use See the cited source for the official entry
Zoning See the cited source for the official entry
Site area See the cited source for the official entry 3,754.26㎡
Building footprint See the cited source for the official entry 1,886.20㎡
Total floor area See the cited source for the official entry 34,813.16㎡
Open-space ratio 1,603.28㎡
Roof height 68.97m
Project developer See the cited source for the official entry
Architect See the cited source for the official entry
General contractor See the cited source for the official entry
Building owner / owner See the cited source for the official entry
Development project name Urban redevelopment project associated with HONGO HOUSE MANSION REBUILDING PROJECT
Mixed Use See the cited source for the official entry

LOCATION

Planned site map

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LocationTokyo, Bunkyo Ward, Hongo 1-chome

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Amenities and management

This information has been verified from cited sources. “Unverified” does not mean that an amenity is unavailable. Shared complex amenities may not be located within this tower.

Direct station access Unverified
Structural earthquake protection Unverified
Parking capacity Unverified
Parking conditions Unverified
Property management company Unverified
Management system and staffing Unverified
Repair plans and records Unverified
Guest room Unverified
Lounge Unverified
Gym Unverified
Concierge Unverified
Parcel lockers Unverified
24-hour trash disposal on every floor Unverified
Interior corridors Unverified

Parking capacity does not guarantee availability or usage rights. Check management rules and related documents for fees, vehicle restrictions, eligibility, and reservations. Amenities, services, and management arrangements may have changed since the retrieval date.

Asking prices at nearby completed towers

Because this building is not yet complete, current listings and valuations are not shown. Below are asking prices for units currently for sale in nearby completed buildings. They are neither transaction prices nor planned prices for this building.

Nearby completed buildingsStraight-Line DistanceCompletedNumber of FloorsMedian Asking Price per TsuboUnits for sale
PARK COURT BUNKYOKOISHIKAWAZA TOWER710m3/202140 stories above groundJPY 14,860,000/tsubo7 unit
ATORASU TOWER KOISHIKAWA840m11/200328 stories above groundJPY 7,473,000/tsubo3 unit
TOKYO RESIDENCE880m2/200329 stories above groundJPY 9,672,000/tsubo5 unit
CITY TOWER KUDANSHITA900m4/200725 stories above groundJPY 9,196,000/tsubo4 unit
ARUBIO THE TOWER CHIYODAIIDABASHI1,120m2/202124 stories above groundJPY 11,861,000/tsubo7 unit

Buildings within 1,500m with at least 3 units for sale, ordered by distance. Differences in size, floor, orientation, and building age are not adjusted for.

Bunkyo Ward has 16 units listed in completed high-rises, with a median asking price per tsubo of JPY 12,182,000/tsubo.

Including this building, 8 tower condominiums are scheduled for completion in Tokyo 23 Wards in 2029; buildings with published unit counts total 3,441 units units.Supply outlook by scheduled completion year

Plan details in filings and permits

Values copied from public filing and permit records mechanically matched to this project by ward, neighborhood, number of floors, and expected completion date. They reflect the plan when filed and may differ from the building details above or have since changed.

ItemAs stated in the recordSource
Name in filingHONGO HOUSE MANSION REBUILDING PROJECTCited source
LocationSee the cited source for the official entryCited source
Number of Floors20 stories above groundCited source
HeightApprox. 68.97 mCited source
Planned completionOctober 2029Cited source
UseSee the cited source for the official entryCited source
Street addressTokyo, Bunkyo Ward, Hongo 1-chomeCited source
Project ownerSee the cited source for the official entryCited source
Architect / designerSee the cited source for the official entryCited source
ContractorSee the cited source for the official entryCited source
Total units254 unitsCited source
Basement floors1 floors below groundCited source
Site area3,754.26㎡Cited source
Building footprint1,886.20㎡Cited source
Total floor area34,813.16㎡Cited source
Zoning / districtSee the cited source for the official entryCited source
Public open space (effective area)1,603.28㎡Cited source
Planned construction startDecember 2026Cited source
Additional filing detailSee the cited source for the official entryCited source
Additional filing detailSee the cited source for the official entryCited source
Additional filing detail2024-05-16Cited source

Comparable transactions near the development site

No comparable transactions matching this building’s criteria (neighborhood and year built) were found.

LAND PRICE

Land Prices Near the Development Site

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Land-value information is being prepared because the nearest reference point could not be identified. This does not mean there are no nearby reference points.

Hazard projections and surroundings (official data)

Planned siteResults from matching the coordinates against public data from Japan's Ministry of Land, Infrastructure, Transport and Tourism. Being outside a projected zone and having missing or unavailable data are shown as separate states. No value does not mean the location is safe.

Hazard projections

Check official projections for flooding, landslides, and other hazards.

Liquefaction tendency Very low liquefaction susceptibilityLandform classification: Loam plateau · level 5 of 6 (1 is the most susceptible to liquefaction) General tendency based on the 250 m grid landform classification; ground improvements and foundation specifications are not reflected. Prepared by TOWERS.SELECT using MLIT liquefaction susceptibility map based on landform classification(retrieved 2026-09-27)
Storm-surge inundation projection Outside projected zone Maximum inundation depth among the projected zones overlapping the coordinates of Planned site. Prepared by TOWERS.SELECT using MLIT National Land Numerical Information: Storm Surge Inundation Assumption Areas(retrieved 2026-09-27)
Flood inundation projection (maximum assumed scale) Outside projected zone Highest rank among the river-specific projections overlapping the coordinates of Planned site. Prepared by TOWERS.SELECT using MLIT National Land Numerical Information: Flood Inundation Assumption Areas(retrieved 2026-09-27)

Zoning

Urban-planning categories governing residential, commercial, and other land uses.

Zoning Neighborhood commercial zoneFloor-area ratio: 400.0% / Building coverage ratio: 80.0% These are the designated floor-area and building coverage ratios, not the actual values or any relaxations applied to this building. Prepared by TOWERS.SELECT using MLIT urban-planning GIS data: Land-use zoning(retrieved 2026-09-27)
Fire-prevention and quasi-fire-prevention districts Fire prevention district Prepared by TOWERS.SELECT using MLIT urban-planning GIS data: Fire-prevention districts(retrieved 2026-09-27)

Passenger traffic at the nearest station

See the station's usage level and annual changes.

the station named in the cited source stations (Toei Mita Line / Chuo Line) is a straight-line distance of 227 m. 2023 annual passenger traffic was 181,828 passengers per day.

Daily ridership at the station named in the cited source Station

people/day
Daily ridership at the station named in the cited source Station A line connecting annual values.Detailed values are also shown in the table below. 100,000 150,000 200,000 250,000 2011 2014 2017 2020 2023 Year people/day 2011: 208,495 people/day 2012: 207,009 people/day 2013: 211,486 people/day 2014: 215,180 people/day 2015: 212,216 people/day 2016: 212,425 people/day 2017: 214,786 people/day 2018: 215,209 people/day 2019: 214,462 people/day 2020: 108,036 people/day 2021: 125,683 people/day 2022: 165,714 people/day 2023: 181,828 people/day 181,828
Endpoint: 181,828 people/dayTrace or tap the chart, or focus it and use the left and right arrow keys to inspect values.
YearPassenger traffic (people/day)
2011208,495
2012207,009
2013211,486
2014215,180
2015212,216
2016212,425
2017214,786
2018215,209
2019214,462
2020108,036
2021125,683
2022165,714
2023181,828

Values combine multiple lines at the same station. Distance is measured in a straight line to the station, not as walking time.

Prepared by TOWERS.SELECT using MLIT National Land Numerical Information: Station Passenger Counts(retrieved 2026-09-27)

Projected local population

A projection of how the population within the 250 m grid cell may change.

Planned site is in a 250 m grid cell with a projected population of 2,560 people in 2025 to in 2050: 2,885 people(+12.7%)。

Projected population in the 250 m grid cell

people
Projected population in the 250 m grid cell A line connecting annual values.Detailed values are also shown in the table below. 2,500 2,600 2,700 2,800 2,900 2025 2030 2035 2040 2045 2050 Year people 2025: 2,560 people 2030: 2,655 people 2035: 2,748 people 2040: 2,836 people 2045: 2,873 people 2050: 2,885 people 2,885
Endpoint: 2,885 peopleTrace or tap the chart, or focus it and use the left and right arrow keys to inspect values.
YearProjected population
20252,560
20302,655
20352,748
20402,837
20452,873
20502,885

Projections based on the 2020 census. Areas first occupied after 2020 may not be reflected.

Prepared by TOWERS.SELECT using MLIT National Land Numerical Information: 250 m Mesh Future Population Estimates(retrieved 2026-09-27)

Reference information only. It is not guaranteed for use in important-matters explanations, building applications, or other official procedures (MLIT Real Estate Information Library Terms, Article 3(4)).

Nearby buildings

Buildings in the same municipality are grouped under Bunkyo Ward .

English and alternate names

English names

  • HONGO HOUSE MANSION REBUILDING PROJECT

Alternate names

  • (仮称)本郷 HOUSE MANSION 建替事業 Japanese alias
  • (仮称)本郷 HOUSE マンション建替事業 Japanese alias
  • (仮称)本郷ハウス MANSION 建替事業 Japanese alias
  • HONGO HOUSE マンション REBUILDING PROJECT Japanese alias
  • HONGO ハウス MANSION REBUILDING PROJECT Japanese alias
  • HONGO ハウス マンション REBUILDING PROJECT Japanese alias

This page lists English and kana variants derived mechanically from the official name, along with aliases verified to refer to the same building. Differences in character width, spaces, punctuation, middle dots, and long vowel marks are normalized automatically when searching.