Replanning

Revitalizing Underutilized Buildings into High-Value Properties that Meet Societal Needs

Through client-focused renovations, we transform buildings with declining occupancy and in need of major repairs into high-value properties sought after by building owners, tenants, and local communities.
We offer spaces that foster connection, encourage community growth, and enhance the well-being of individuals.

Sun Frontier’s Unique Business Model
「Replanning^®」

We purchase underperforming and aging medium-sized buildings in central urban areas, revitalize them into high-yield properties that attract tenants, and sell them to individuals, businesses, and institutional investors.
What sets us apart is our fully integrated, in-house real estate service model — covering everything from revitalization planning, construction, and tenant leasing to rent guarantees, property management, and ongoing building operations.

Replanning®” is a registered trademark of Sun Frontier Fudousan Co., Ltd

Promoting Effective Resource Utilization through “Replanning”

“Replanning,” our approach to revitalizing aging buildings without demolition, helps reduce waste and CO2 emissions.
To assess the environmental impact of our real estate revitalization business, we used the Japan Architectural Institute’s LCA tool* to estimate resource inputs, waste outputs, and reductions in life cycle CO2 (LCCO2)** over a 50-year building lifecycle.

*
Building LCA Tool Ver. 5.0 – An evaluation tool addressing global warming, resource consumption, and waste management.
**
Measures CO2 emissions across all stages of a product’s lifecycle, including manufacturing, transportation, sales, use, disposal, and recycling.

Assumptions and Basis: We assumed a typical office building that represents the core segment of our revitalization projects in terms of building age and floor area.
A 30-year-old office building in central Tokyo with a total floor area of approximately 3,000 m² was selected as the model. We then calculated its environmental contribution over a 50-year period—the assumed service life of an SRC (Steel Reinforced Concrete) office building.; Scenarios Evaluated:
Reconstruction: Rebuilding the structure every 35 years
Renovation: Revitalizing the aging building without demolition (long-life building)
Standard: A 30-year-old building with no renovations

Compared to reconstruction proposal and standard building

Resource input: 4,899t
Reduction
Waste generation: 1,182t
Reduction
CO₂emission: 3,360t
Reduction
Annual CO₂reduction equivalent to: Approximately
1,591vehicles

※
Annual CO₂ emissions per vehicle = approximately 2,300 kg (Ministry of the Environment data)

Comparison of resource input over 50 years
Comparison of waste generation over 50 years
Comparison of LCCO₂(life cycle CO₂) emissions over 50 years

Achievements of Replanning

Extensive Achievements: Our Replanning initiative began in 2001, guided by a corporate philosophy of minimizing resource waste.
By transforming properties into high-value real estate and contributing to society, we aim to generate value for local communities, building owners, and tenants alike.
To date, we have revitalized a total of 502 buildings.; The number of real estate revitalizations

512
buildings

As of March 31, 2025; BEFORE

AFTER

Conversion to “Set-up office”

From the tenant’s perspective, we offer setup offices featuring stylish interior design and pre-installed equipment and furnishings. These ready-to-lease offices significantly reduce both time and cost burdens for tenants, making them especially popular among startups. We currently hold the leading market share for such offices within Tokyo’s 23 wards.