Measures to Eliminate the Denselybuilt Wooden House Areas

Disaster Management Urban Development Section
Urban Development Projects Division
Bureau of Urban Development

1. Introduction ~ Densely-built
Today’s Topics Wooden House Areas
2. Formation of Fire Spread
Prevention Belt
3. Development of Fireresistant Urban Area
4. 10 Years Project of Fireresistant of Densely-built
Wooden House Areas
2

Introduction

Distribution of Denselybuilt Wooden House Areas
Disaster-resilient City
Promotion Plan
3

Distribution of Densely-built Wooden HouseArea
Within 23 Wards Area:
Apx.16,000ha(25% of Areas of 23 Wards)

Aged wooden houses are densely
distributed in outside of JR Yamanote
Line in doughnut shape

JR Chuo Line

JR Yamanote Line4

Promotion Plan of a Disaster-prepared City
Basic Concept of Disaster-resilient City Formation of Fire
Spread Prevention
Belt
Disaster Management
Neighboring Block Development of urban
planning arterial road
 Fire-resistant of buildings
along the designated roads Fire-resistant of Urban
Area Implementation of neighboring
community roads
 Secure of open space for disastermanagement
 Fire-resistant and retrofit of buildings

5Promotion Plan of a Disaster-prepared City
Definition of Fire SpreadPrevention Belt
Designation of Project Area
and Priority Project Area

LegendMain Frame Axis (Urban Planning Roads)
Major Fire Spread Prevention Belt
General Fire Spread Prevention Belt
Main Frame Axis (Rivers)
Priority Project Area
Project Area
River & Sea
Administrative Boundaries
JR Lines6

Formation of Fire Spread
Prevention Belt

7

Formation of Fire Spread Prevention Belt
Concept of Fire Spread
Prevention Belt

Urban Area inside of Disaster
Management Neighboring Block
Fire-resistant
Buildings• Fire-resistant of Building• Secure of Open Space• Road Development

Urban Planning
Arterial Road
Disaster Management
Neighboring Block

Disaster Management
Neighboring BlockFire Spread Prevention Belt
To secure the safety of adjacent Disaster
Management Neighboring Block

Secure the safety inside ofDisaster Management
Neighboring Block

Prevention of largely spreadfire in the urban area at thedisaster event
8

Example ~ Formation of Fire Spread
Prevention Belt
Development of Arterial Roads Designated inUrban Planning To develop arterial roads designated in urban planningwhich is effective to prevent fire spreads in urban area

BeforeAfter[Sub-arterial road No.46: Near Meguro Honcho 3-chome]9

Example ~ Formation of Fire Spread
Prevention Belt
Fire-resistant of Buildings along theDesignated Urban Planning Roads Subsidy for rebuilding to fire-resistant building

BeforeAfter[Kodai-district, Arakawa-ward]
10

Example ~ Formation of Fire Spread
Project Area
Prevention Belt
Higashi-ikebukuro district, Toshima-ward
Urban Development Integrated withRoad Development(Sub arterial road No. 81)

 To facilitate efficient utilization of land along
the designated road development project.
 To facilitate the collaborative development ofbuildings along the roads reflecting
residents’ will with utilizing private vitality
Widened Collector Road

Kanegahuti-district, Sumida-ward(Sub arterial road No. 120)
Doshida/Takamatsu-district,Nerima-ward(Sub arterial road No. 230)
Jujo-district, Kita-ward(Sub arterial road No.83)
Meguro-honcho-district, Meguro-ward(Sub arterial road No. 46)
Rebuilding by Purchasing
the Remaining Land

Urban Planning Road
(Fire Spread Prevention Belt)
整備前

整備後

Planned Road Arraignment[Before Project]

Collaborative
Developmentof Building

Rebuilding of the[Image of After Project] Remaining Land11

Example ~ Formation of Fire Spread
Prevention Belt
Land Owned by TMG Activation Project (Ikejiri2cnome, Setagaya-ward) Selling of TMG owned land to private entity selected from the publicand develop an apartment complex.
 Subdivide the apartment complex to the land owners of the target
project area by priority.

2) Disaster-resilient
Urban Development
Projects• Rebuilding• Seismic retrofit• Collaborations3) Support to Road Development• Selling collaborative houses tothe affected persons in advance•Consultation of rebuilding andrelocation

整備前

1) Development of
Collaborative Houses andPublic Service Facilities[Apartment Complex
by the Project]
12

Fire-resistant ofUrban Areas

13

Fire-resistant of Urban Areas
Concept of Development
Construction of Park(+ Installment of Earthquakeresistant Water Tank)New Regulation forFire Prevention

District PlanAssistance for Rebuildingof Buildings along Major
District Road
Subsidy for a part of thecost for removal, design,and construction

Assistance for Collaborative
Rebuilding of Aged Buildings
Subsidy for a part of thecost for removal, design,and construction

Construction ofCollector Roads

Construction ofCommunity Housing
Improvement of Major District Road
(Widening of Road and Laying
Power Lines Underground)14

Examples ~ Fire-resistant of Urban Areas
Improvement of Major District Road
 To improve the major district road which is requisite for
evacuation, fire fighting and rescue operations.
 To facilitate rebuilding of the building along the designatedroads to fire-resistant and seismic-resilient.

Before[Kyojima-district, Sumida-ward]

Road Width Before
Improvement
After
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Examples ~ Fire-resistant of Urban Areas
Construction of Park To construct parks/open spaces which are effective for local
communities in regard of disaster management
 To secure the bases of disaster management activities withnecessary equipments such as earthquake-resistant water tank,etc.

整備前

Before[Ekoda-district, Nerima-ward]

整備後

After

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Examples ~ Fire-resistant of Urban Areas
Assistance for Collaborative Rebuilding ofAged Buildings
 To implement collaborative rebuilding by the residents
utilizing the governmental subsidies in case of the district
which is difficult to rebuild independently because of
inadequate building lot condition without access road.

Before
整備前
整備前

After
整備後
整備後

[Wakaba/Suga-district, Shinjuku-ward]
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Examples ~ Fire-resistant of Urban Areas
Disaster-resilient District
Development Program

Implemented Area

 To construct disaster-resilient buildings andpublic facilities where aged buildings areremoved.
 It provides two options regarding change ofrights to 1) collaborative buildings and 2)
independent lands.
Before Project

Change ofRight Method

After Project

Kyojima-3chome, Sumida-ward(0.2ha, approved in 2010)
Sekibara-1chome, Adachi-ward(0.4ha, approved in 2010)
Itabashi-3chome, Itabashi-ward(0.4ha, approved in 2008,completed in 2010)
Improvement of Disasterresilient by Collaboration

Public Facilities(Roads)
Public Facilities (Parks)
Public Facilities (Roads)

Change of Right to
Building or Emigration

Change of Rightto Individual Use

Individual Use Area(Fire-resistant)
18Disaster-resilient District Development Program

Itabashi-3chome-district
Approval of Project Management
Unit: 26 March, 2009
Objective: To develop collaborativebuildings after removal of aged
wooden buildings and to develop
evacuation roads and parks which isessential at the disaster event.
Target Area: 0.4ha- Lot Area: 2,065m2- Independent Lot Area: 490m2
Specification of Building- RC-made: 1 floor in underground,23 floors on ground- Height: 83m- Built-area: 1,020m2- Total Floor Area: 15,430m2
Utilization: Residences (139 rooms),Shops, Public Facilities, Multistory
Parking Lots (80 lots)
Total Project Cost: JPY6.9 bil.
No. of Owners: 61 persons

19

Disaster-resilient District Development Program

Itabashi-3chome-district

20

Disaster-resilient District Development Program

Before Project

Sekibara-1chome, Chuo-district
Approval of Project
Implementation: 13 April, 2010
Objective : To develop
collaborative buildings after
removal of aged wooden buildings
Sub-arterial
and to develop evacuation roads
Road No.136
and parks which is essential at thedisaster event.
After Project
Target Area: 0.4ha- Collaborative Area: 1,960m2- Independent Lots: 840m2
Specification of Building
Independent- RC-made: 8 floors on ground
Lots- Height: 24m
Fire-resistant Building(Collaborative House)- Built-area: 940m2- Total Floor Area: 4,500m2
Utilization: Residences (60rooms)
Park
Sub-arterial
Total Project Cost: JPY1.9 bil.
Road No.136
No. of Owners: 45 persons

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Examples ~ Fire-resistant of Urban Areas
New Restriction for Fire-resistant according toBuilding Security Ordinance in TMG
 To strengthen the restriction for fire-resistant of building insidethe designated area by the Governor within Semi-fire-resistantArea
Total Floor Area: 500m2(or more than 3 floors)

1500m2(or more than 4 floors)▼▼

Restriction for Semifire-resistant area

Wooden/Fire-resistant
Structure Building

Semi-fire-resistant
Building

Fire-resistant
Building

Total Floor Area: 500m2(or more than 4 floors)▼New restriction for
fire-resistant area

Semi-fire-resistant
Building

Fire-resistant
Building

Designated in TMG as of May 2012: 3,170ha (11 Wards, 1 City)
整備前
整備前

22

Examples ~ Fire-resistant of Urban Areas

As of May 2012

Priority Project Area

3,170ha are designatedin TMG

Project Area
New Restricted Area
for Fire-resistantFire-resistant Area[Newly Designated Areas ofRestricted Area for Fire-resistant]23

10 Years Project of Fireresistant of Densely-built
Wooden House Areas
Target of the Project
Concept of the Activities

24

Target of “10 Years Project of Fire-resistant ofDensely-built Wooden House Areas”
To make Densely-built Wooden Building Areas
Resistant to Fire Spread and Inflammation
Urgency of the earthquake directly underneath Tokyo andoccurrence of the Great East Japan Earthquake accelerate theactivities to improve densely-built wooden building areas
Especially for the Project Areas (Apx. 7,000ha) where extensive
damages are expected are the target of the focused and intensiveactivities.

To realize “Fire-resistant City” by accelerating fireresistant projects in urban area.
To realize “a City Resistant to Fire Spread” by facilitating
formation of Fire Spread Prevention Belt.
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Concept of the Project
Facilitation to create Fire-resistant City in cooperation
with ward governments• To extend the restricted area for fire-resistant• To establish a special assistance framework (Specific
District for Non-flammable) for the district where isrequired focused and intensive improvement

Strengthening of major urban planning road network
to formulate a Fire Spread Prevention Belt
• To establish a new framework (Specific Road forIntensive Development) for rehabilitation of the livelihoodof land owners alongside the designated roads

Awareness-raising of citizens to formulate a Fireresistant City
• To implement town meetings and individual consultation

26

Image of Development of 10 Years Project of Fireresistant of Densely-built Wooden House Areas<Existing Condition>
Alignment of Planned
Urban Planning Road
Densely-built Wooden
Building Area

<After Project>
Fire-resistant and Earthquakeresilient of Buildings along theDesignated Road

Urgent Development of
Urban Planning Road

<At the Designation for Special Framework>
Specific Area for
Non-flammableSpecific Road forIntensive Development
Rebuilding to Fire-resistant andDevelopment of Collector Roads and Parks

Collaborative Housing
by Core ProjectCore Project Area27