Whether it’s finding land, selling your home, or building a new one, you only need one place to turn for advice.
Search for land on a real estate portal, use a bulk appraisal service to sell your current home, and plan the house at a model home showroom—before you know it, you’re spending every weekend in back-to-back meetings with different companies. The person handling the land doesn’t know your budget for the house, and the person handling the house doesn’t know how the sale is progressing. We often hear complaints about this “multiple-point-of-contact fatigue” from people in the Tokyo metropolitan area who are just starting to think about building a home.Real estate transactions and custom home construction are inherently part of a single, integrated project; the more points of contact there are, the harder it becomes to see the big picture of your budget. In this article, we’ll introduce seven home builders in the Greater Tokyo Area where you can handle everything—from finding land and buying or selling property to consulting on custom home construction—through a single point of contact, along with criteria to help you choose the right one.
- The national average cost of purchasing a custom-built home is 61.88 million yen (Ministry of Land, Infrastructure, Transport and Tourism, Reiwa 6 Housing Market Trends Survey). Considering the budget allocation for both land and the building as a single, integrated plan is particularly important when building a home in the Greater Tokyo Area.
- The number one reason people who built custom homes cited for their choice was “because it was a trustworthy homebuilder or real estate agent” (55.3%). “Who to entrust the project to” is the deciding factor, even more so than location or price.
- When comparing one-stop consultation services, evaluate them based on five key criteria: the level of collaboration between the real estate and construction divisions; the depth of their service coverage; their ability to support financial planning; the quality of their staff; and their exit strategies, including future resale.
- Community-based companies and large national firms have different strengths. You should choose based on how well the company fits your specific situation, rather than just its name recognition.
Table of Contents
- I.Why a “Single Point of Contact” Makes Sense—The Current State of Home Building as Seen Through Data
- II.Five Comparison Criteria to Avoid Regrets
- III.7 Home Builders Offering One-Stop Consultations in the Greater Tokyo Area
- IV.Quick Reference Chart: How to Choose by Type
- V.3 Things to Prepare Before Consulting
- VI.Summary
- VII.Frequently Asked Questions
CHAPTER I
Why a “Single Point of Contact” Makes Sense—The Current State of Home Building, as Seen Through Data
First, let’s examine official statistics to determine how much funding is required to build a home today. According to the Ministry of Land, Infrastructure, Transport and Tourism’s “Reiwa 6 Housing Market Trends Survey,” the average cost of purchasing a custom-built home is 61.88 million yen (nationwide, including land costs)—the highest among all housing types—with the median cost reaching 50.30 million yen.
Average Purchase Cost by Housing Type (10,000 yen)
Source: Compiled independently based on the Ministry of Land, Infrastructure, Transport and Tourism’s “Reiwa 6 Housing Market Trends Survey (Summary of Survey Results).” Figures for custom-built homes are nationwide; figures for other categories are for the three major metropolitan areas.
Land price trends are also worth noting. According to the Reiwa 8 Land Price Announcement published by the Ministry of Land, Infrastructure, Transport and Tourism in March 2026, nationwide land prices rose for the fifth consecutive year across all categories—the overall average, residential areas, and commercial areas—while in the Tokyo metropolitan area, the rate of increase accelerated for all three categories.When building a home in the Tokyo metropolitan area, how wisely one secures land and how one sells their current home at a fair price have become factors that influence the total budget even more than the building plans themselves.
There is another piece of data worth noting. In the same housing market trends survey, when households that built custom homes were asked why they chose to do so, the most common response—at 55.3%—was “because the homebuilder or real estate agent was trustworthy.” It is not location or price, but “who to entrust the project to” that is the deciding factor—this is the real-world experience of those who have built their own homes.
building a home is like climbing a mountain. It starts with finding a lot—choosing the trailhead—followed by financial planning—preparing your gear—and culminates in the construction of the custom home—reaching the summit.It goes without saying which is more reassuring: a climb where the guide changes partway through, or one where the same guide accompanies you from start to finish. That is precisely why consulting a single point of contact—one well-versed in both real estate transactions and custom home building—is now gaining attention as a rational choice.
CHAPTER II
5 Comparison Criteria to Avoid Regrets
Although the term “one-stop service” is often used, what it actually entails varies greatly from company to company. When comparing service providers, it’s best to evaluate them based on the following five criteria.
For detailed guidance on how to choose a plot of land itself , see “ How to Find Land for a Custom-Built Home: Key Points and Considerations.”
CHAPTER III
7 Selected Home Builders Offering One-Stop Consultation in the Greater Tokyo Area
Based on these five key areas, we’ll now introduce seven companies in the Greater Tokyo Area where you can receive comprehensive consultations on both real estate and custom-built homes. For each company, we’ve summarized their key strengths based on information from their official websites.
Jiyu Jutaku Group | One Brand for Every Step of Your Home Journey
Under the “Jiyu Jutaku” brand, the Jiyu Jutaku Group handles everything from custom-built homes and pre-built homes to renovations and real estate sales through a single point of contact.Everything from property searches to consultations on selling or utilizing land can be handled entirely on the same website, and at their showrooms, customers can see, touch, and verify the actual specifications used in their homes. Another key feature is the use of VR for all properties they sell, allowing customers to experience what their home will be like after construction is complete.
Because we are deeply rooted in the local community, a dedicated representative—whom you’ll get to know personally—will accompany you every step of the way, from the land search phase through to completion. We welcome consultations even at the “I haven’t decided on anything yet” stage.
For more details, please refer to “ Jiyu Jutaku Custom-Built Homes ” and “ Real Estate Sales and Land Utilization.”
Sekisui House | An industry leader promoting itself as a “Land Search Concierge”
The company operates a system where a team of home-building professionals is involved from the land search stage onward, carefully selecting and acquiring land based on proprietary criteria such as transportation access, disaster risk, and soil conditions. The group’s Sekisui House Real Estate features a special section titled “Land Where Sekisui House Homes Can Be Built,” enabling seamless coordination within the group between land brokerage and custom home construction.The “Common Stage” residential development, which prioritizes a cohesive streetscape, is also an option. This is ideal for those who value the peace of mind that comes with a major company and access to carefully selected land information.
Daiwa House Industry | “Livness” Offers a Seamless Process from Sale to Relocation
Through its housing stock business brand “Livness,” the company leverages its group network to handle everything from the purchase of pre-owned homes and the sale of real estate to renovations conducted simultaneously with a purchase, as well as the management of rental properties and vacant homes. This system is well-suited for those seeking consultation that includes exit strategies for real estate transactions—such as “I want to sell my current home and rebuild” or “I’m unsure what to do with the land where my parents’ home stands.”
Sumitomo Forestry | Collaboration with Group Real Estate Company “Suminaavi”
Sumitomo Forestry, known for its custom-built wooden homes, has Sumitomo Forestry Home Service—a real estate brokerage within the group—which provides information on purchasing land, single-family homes, and condominiums, as well as sales appraisals, through the real estate information site “Suminaavi.” In addition to brokerage services, the group offers a wide range of services, including the construction of single-family homes and apartment buildings, rental property management, and renovations.This makes it a strong contender for those who are committed to a wooden home and want to entrust the entire process—from finding land onward—to the company.
Misawa Home | 24-Hour Consultation Hotline and Real Estate Subsidiary
The company operates a consultation desk that handles inquiries regarding custom-built homes, the purchase of land and pre-built homes, general real estate matters, and requests for site surveys; its toll-free number is available 24 hours a day, 365 days a year.The group’s Misawa Home Real Estate handles rental property management, pre-owned homes, land, and real estate brokerage, providing home-buying support that leverages the homebuilder’s expertise and network. This is ideal for those who want to handle site surveys and general real estate consultations all in one place.
Open House Group | An Integrated System Specializing in the Greater Tokyo Area, from Land Acquisition to Construction
The group excels at acquiring land in central Tokyo, particularly within the 23 wards, and handles the entire process—from land acquisition and planning/development to design, construction, and sales—in-house.The company has a proven track record in building homes in urban areas that make the most of small lots and also offers custom-built homes with support starting from the land search. This service is a good fit for those who want to “own a single-family home in an area close to the city center while keeping costs down.”
For ideas on building homes on small lots, see “ Secrets to Comfortable Living on a Small Lot.”
Mitsui Home | The Comprehensive Strength of the Mitsui Fudosan Group and “Land Partner”
The company has established a “Land Search Consultation Desk” that offers free consultations on finding land. Through “Land Partner”—a network of reputable real estate agencies with deep local knowledge—it provides comprehensive support from the initial inquiry through contract signing and move-in. Backed by the comprehensive strength of the Mitsui Fudosan Group, this service is ideal for those seeking comprehensive consulting on both land and construction.
CHAPTER IV
Quick Reference Chart: Choosing the Right Type
We’ve organized the strengths of these seven companies based on who they’re best suited for. What matters most isn’t brand recognition, but how well they align with your specific situation.
According to a survey by the Ministry of Land, Infrastructure, Transport and Tourism, the two main methods used by households purchasing custom-built homes to find a builder were “housing showrooms” (50.8%) and “the Internet” (46.6%), followed by “referrals from acquaintances” (25.1%).We recommend not making a decision based solely on information from showrooms and the internet, but rather consulting in person at a sales office to assess whether you get along with the representative.
CHAPTER V
Three Things to Prepare Before Your Consultation
Since you’re taking the time to consult with a one-stop service, you’ll want to make your first meeting as productive as possible. If you prepare the following three things in advance, the discussion will progress surprisingly quickly.
Share a general idea of your “total budget” with your family
If you decide on an upper limit that combines the cost of the land, the house, and miscellaneous expenses in advance, it will be easier for your consultant to propose realistic combinations of lots and floor plans. As mentioned earlier, the national average cost of purchasing a custom-built home is 61.88 million yen.In the same survey, the number one reason people compromised when choosing a home was “price or rent (higher than expected)” (69.3%). Establishing a clear budget framework from the start is the best way to avoid regrets.
Narrow down your area priorities to “no more than three”
Commute time, school district, distance from your parents’ home—it’s virtually impossible to find a lot that meets all these criteria. If you narrow down your “absolute must-haves” to no more than three and jot them down, the accuracy of the property proposals you receive from your agent will improve dramatically.
Get a clear picture of your current living situation
If you own your home, decide whether to sell or rent it out; if you’re renting, find out when your lease is up. Knowing your deadline for moving will allow you to receive proposals that work backward from your property search and construction schedule. If a sale is involved, there’s an even greater advantage to choosing an agent with expertise in real estate transactions.
For more information on relocating while selling your current home, please also refer to the “Real Estate Sales and Land Utilization for Custom Homes ” page.
CHAPTER VI
Summary
Finding land, buying and selling real estate, building a custom home, and securing a mortgage—the challenges of building a home are all intertwined. That’s precisely why, rather than consulting different parties separately, the fastest route is to discuss “everything” with a single point of contact first. If you can find someone who will help you organize the big picture together, your home-building project will move forward in one fell swoop.Using the five comparison criteria and the characteristics of the seven companies introduced here as a guide, I encourage you to start by visiting the office of a company that interests you. In the Tokyo metropolitan area, where land prices are constantly fluctuating, even the time you spend hesitating is a significant cost.
CHAPTER VII
Frequently Asked Questions
Q. Which should I start first: looking for land or consulting about a custom-built home?
We recommend starting both at the same time. Since the land and the house share the same total budget, if you decide on the land first, you may end up with insufficient funds for the house. If you work with a representative who handles both real estate transactions and custom-built homes, you can work together from the very beginning to determine the allocation between land and house based on your total budget.
Q. What is the average cost of a custom-built home?
According to the Ministry of Land, Infrastructure, Transport and Tourism’s Reiwa 6 Housing Market Trends Survey, the national average cost of purchasing a custom-built home (including land) is 61.88 million yen, with a median of 50.30 million yen. In the Tokyo metropolitan area, where land prices are high, it is not uncommon for costs to exceed these figures. We recommend consulting with a financial expert early on to plan your budget.
Q. Are there any disadvantages to hiring separate companies for the land and the house?
There are three main disadvantages. First, there is often no single point of contact who can oversee the budget allocation for both the land and the house. Second, you will need to coordinate the schedules for the land transfer and the start of construction yourself. Third, the process of securing financing—such as bridge loans or loans for land acquisition—tends to become more complicated.
Q. Can I proceed with selling my current home and building a new one at the same time?
This is possible if you work with a company that handles both real estate sales and construction. By factoring in the expected sale price and timing of the sale when planning the financing and schedule for your new home, you can minimize the gap between moving out of your current home and moving into your new one, as well as any financial discrepancies. A move involving the sale of your current home is precisely the kind of situation where a one-stop consultation offers significant benefits.
Q. Is there a fee for using a one-stop consultation service?
The companies introduced in this article generally have consultation services for home construction and real estate, and initial consultations are typically free. However, since fees may apply during subsequent stages such as site surveys and design, it’s a good idea to confirm during your first consultation exactly when charges will begin.
- Check out methods, precautions, and tips for selecting land for a custom-built home
- Is Buying “Land with Building Conditions” a Bad Deal? A Smart, Little-Known Option for Building Your Home
- An Explanation of How to Buy a Pre-Owned Home, Procedures Before and After Signing the Contract, and Why It Offers Advantages Over New Construction
- Real Estate Market Trends for March 2026 | Prices for Spec Homes Continue to Rise in Tokyo and the Three Neighboring Prefectures—Which Areas Are Worth Targeting?
Whether you’re looking for land, selling your home, or building a new one, turn to Jiyu Jutaku for all your needs
We especially welcome consultations from those who are still in the “I haven’t decided anything yet” stage. With LINE, you can easily consult with us from your smartphone without worrying about business hours.
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Ministry of Land, Infrastructure, Transport and Tourism, “Reiwa 6 Housing Market Trends Survey Report” (June Reiwa 7) https://www.mlit.go.jp/report/press/content/001900667.pdf
Ministry of Land, Infrastructure, Transport and Tourism “Reiwa 8 Land Price Announcement” Press Release (March 17, 2026) https://www.mlit.go.jp/report/press/tochi_fudousan_kensetsugyo04_hh_000001_00074.html
Sekisui House “Land Search Concierge” https://www.sekisuihouse.co.jp/bunjou/searchland/ / Sekisui House Real Estate “Featured Lots Where You Can Build a Sekisui House Home” https://sumusite.sekisuihouse.co.jp/special/sekisuiland/
Daiwa House Group “What is Livness?” https://www.daiwahouse.co.jp/stock/about/index.html
Sumitomo Forestry Home Service https://www.sumirin-hs.co.jp/ / SumiNavi https://www.suminavi.com/
Misawa Home “Housing Consultations” https://www.misawa.co.jp/soudan/ ／ Misawa Home Real Estate https://realestate.misawa.co.jp/
Open House https://oh.openhouse-group.com/ / Open House Development “The Home-Building Process” https://kdt.ohd.openhouse-group.com/custom/flow/
Mitsui Home “Tips for Finding Land” https://www.mitsuihome.co.jp/home/tochi_search/ / “Land Partner” https://www.mitsuihome.co.jp/bunjyo/consulting/land.html
The service details for each company featured in this article are based on information published on their official websites as of July 2026. Please be sure to check each company’s official website for the latest service details and terms and conditions. Statistical figures are based on data published by the Ministry of Land, Infrastructure, Transport and Tourism. (Published: July 11, 2026)