【Kufu Ietate Survey】New Home Prices in Shizuoka Prefecture on the Rise: 6.0% Increase from 2023, Reaching ¥21.85 Million in First Half of 2026

Kufu Sumai Co., Ltd. (Headquarters: Minato-ku, Tokyo; President and CEO: Takehisa Nagai), which operates the housing consultation service "Kufu Ietate Counter" and the residential event "Kufu Ietate Fair," has conducted a survey on the price trends of new single-family homes in Shizuoka Prefecture from 2023 to the first half of 2026, based on building price data. The results show that the base construction price increased from ¥20.62 million in the full year of 2023 to ¥21.85 million in the first half of 2026, a rise of ¥1.23 million.

Amid growing concerns over naphtha shortages and rising material costs, base construction prices continue to rise and remain at high levels.

Additionally, a survey of homebuilders in Shizuoka Prefecture found that 71.7% are already feeling the impact of deteriorating Middle East conditions, with rising prices for plumbing fixtures and insulation materials due to naphtha shortages, as well as growing concerns over construction delays.

【About "Base Construction Price" and "Construction Contract Price"]

- The "Base Construction Price" refers to the contract amount for the building itself, including construction costs and the main structure.

- The "Construction Contract Price" includes additional work, equipment, specification changes, and other related costs on top of the base construction price.

Base construction prices in Shizuoka Prefecture rose by ¥1.23 million from 2023 to the first half of 2026

Survey Overview: Survey on "Price Trends of New Homes in Shizuoka Prefecture"

Survey Target: Homebuilders and construction firms in Shizuoka Prefecture (partner companies of the "Kufu Ietate Counter")

Valid Responses: 1,112 cases (completed contracts from January 1, 2023, to June 30, 2026)

Survey Method: Aggregated analysis based on actual new home contract data (median values used)

Survey Period: January 1, 2023 – June 30, 2026 (data aggregated annually for 2023–2025, and for January–June 2026)

Survey Summary:

- The median "Base Construction Price" in Shizuoka Prefecture rose from ¥20.62 million in the full year of 2023 to ¥21.85 million in the first half of 2026, an increase of ¥1.23 million (6.0%).

- The median "Construction Contract Price" also rose from ¥22.23 million in 2023 to ¥23.66 million in H1 2026, an increase of ¥1.43 million (6.4%). Both base and total contract prices continue to rise, impacting homebuyers' budget planning.

Construction contract prices also rose 6.4% compared to 2023, remaining at high levels in the first half of 2026

The construction contract price increased from ¥22.23 million in the full year of 2023 to ¥23.66 million in the first half of 2026, a rise of ¥1.43 million (6.4%). Since 2024, prices have consistently remained in the ¥23 million range, indicating sustained high levels.

71.7% of homebuilders report feeling the impact of worsening Middle East conditions, with growing concerns over material costs and supply instability

Survey Overview: Survey on "The Impact of Middle East Conditions on Building Materials and Home Purchases"

Survey Target: Homebuilders and construction firms in Shizuoka Prefecture (partner companies of the "Kufu Ietate Counter")

Valid Responses: 60 companies

Survey Method: Questionnaire survey targeting company executives, branch managers, and sales staff

Survey Period: April 20–26, 2026

A survey of 60 homebuilders and construction firms in Shizuoka Prefecture on the impact of Middle East conditions on building materials and home purchases found that 71.7% of companies reported feeling the impact, combining responses of "already experiencing serious effects" and "beginning to see some effects." Additionally, 25.0% responded that while no impact is currently observed, they expect it in the future, indicating growing vigilance over future material prices and supply conditions.

66.7% of homebuilders predict "rising building material prices," reflecting concerns over cost increases and supply instability.

As building prices remain high, concerns over material costs and supply instability are also growing. In the survey of 60 homebuilders in Shizuoka, the most commonly predicted impact was "rising building material prices," followed by "construction and delivery delays" and "specification changes to alternative products." The construction site may face multiple challenges, including material procurement, specification decisions, and schedule adjustments.

Supply instability due to naphtha shortages affects plumbing fixtures, insulation, and more

Due to naphtha shortages and related issues, materials most frequently cited for procurement delays and specification changes include "plumbing fixtures" and "insulation materials." Exterior materials and paint-related products were also mentioned, indicating broad impacts on materials affecting a home’s core performance and finishing.

As a result, construction sites may need to switch to alternative materials or revise specifications. Depending on future trends in material prices and logistics costs, further price pass-throughs or schedule adjustments may occur.

More homebuyers are adopting a "wait-and-see" approach, while some are moving forward earlier

Uncertainty over prices and supply is affecting customer behavior in home purchasing decisions. While some report "more people are postponing final purchase decisions" and "the barrier to entry has increased," others noted a rise in customers who "wish to sign contracts earlier" in anticipation of future price increases.

In a separate question to homebuilders, the most common advice given to customers was "early contract signing and construction start," followed by "clarifying priorities" and "reviewing financial plans."

Kufu Ietate Counter (Free Consultation Service)

A free, in-person consultation service where expert advisors support customers in homebuilding from a neutral standpoint. From budget planning and life simulation to recommending suitable homebuilders and arranging site visit reservations, it comprehensively supports the "first step" in building a home. URL: https://www.sumailab.net/counter/

Kufu Ietate Fair (Residential Event)

A large-scale event featuring numerous high-quality local homebuilders, enabling direct comparison and consultation. Beyond direct access to professionals, it offers seminars and workshops to help visualize and realize your ideal home. URL: https://www.sumailab.net/counter/fair/