Uncovering the History of Your Home, Certifying Its Heritage.
The American Heritage Home Preservation Association (A.H.H.P.A.) is Japan's only independent institution dedicated to authenticating, restoring, and certifying the architectural heritage of classic North American residential estates.
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Our Mission
"An imported home carries the spirit of American living and culture."
The classic North American homes built across Japan hold far more than architectural value. The carefully maintained wooden sash windows, soft light filtering through drywall interiors, the substantial brass door handles ——
These are not merely building materials. They are art, woven from the philosophy of craftsmen and the pride of homeowners.
A.H.H.P.A. exists not only to protect these homes, but to deliver the American way of life and culture to Japan, ensuring these timeless structures endure for generations.
Core Services
Three Pillars of Service
Ⅰ
Heritage Appraisal
Authenticity Assessment
"Does your home still carry the soul of America?"
Using our proprietary aesthetic standards to assess the architectural lineage of your home. We evaluate windows, doors, hardware, drywall, and plumbing to verify authentic North American character.
Appraisal Fee: ¥50,000–¥80,000 (excl. tax)
Ⅱ
Authentic Restoration
Lost Design Revival
"We refuse to accept 'discontinued' as an answer."
By analyzing manufacturer codes etched into glass, we cross-reference BMC's master inventory to source genuine replacement parts directly from Seattle — zero middleman markup.
Coordination Fee: 15–20% of construction cost
Ⅲ
The Certification
Heritage Certification
"The highest honor for a fully restored estate."
Homes that pass our rigorous appraisal receive the Official Heritage Preservation Certificate along with a serialized solid brass recognition plaque — a permanent testament to authenticity.
Bronze Plaque: ¥30,000–¥80,000 (excl. tax)
Certificate
Your Certificate of Authenticity.
The "AHHPA Heritage Appraisal Certificate" publicly documents your home's architectural value and authenticity — serving as a critical asset in real estate negotiations and generational transfers.
Certificate of Authenticity & Preservation
Registered Historic Imported Home — No. 0001
Bronze Plaque
An Honor for Your Home.
The recognition plaque declares that your estate has been acknowledged as an authentic successor to North American architectural heritage — commanding premium valuation in the real estate market.
In Corporate Alliance with Building Materials Consultants, Seattle, WA, U.S.A.
Contact
Start with a Single Photo.
Send us a photo of your concern through our LINE account. Our president will personally provide an initial assessment — completely free of charge.
No charge for initial consultation | Membership inquiries also welcome via LINE
About A.H.H.P.A.
Preserving the Legacy, Restoring the Soul.
In Japan's housing market, imported American homes built over two decades ago are chronically undervalued — and often irreparably compromised by uninformed renovations. A.H.H.P.A. exists to elevate these homes from "depreciating structures" to "enduring cultural assets."
President's Message
As a child, I was captivated by the America I saw on television.
Those wide living rooms. The soft light streaming through heavy wooden windows. Families gathered around the dining table, a terrace leading to the garden.
"Someday, I want to live like that."
The homes built to fulfill that dream carry within them the life stories and emotions of their owners. And those homes are always filled with smiles.
They are irreplaceable repositories of memory — and of lasting value — that can be passed from parent to child, to grandchild.
When those children grow up, no condominium or mass-built house moves them. What they want is the American home they grew up in —
And that's how families have found their way back to our door, generation after generation, for 40 years.
Living surrounded by authentic things enriches the spirit and transforms people. And that richness, like a single candle lit in the dark, gently illuminates those around it — enriching communities and the nation itself.
To protect your home is to protect the culture and landscape of this country. That is what I believe.
Hidehiko Miyazaki
President & Representative Director American Home Connector & Coordinator American Heritage Home Preservation Association
Corporate Alliance
Direct Partnership with Seattle, USA
A.H.H.P.A. has established a formal Corporate Alliance with Building Materials Consultants (BMC) in Seattle, Washington. BMC manages on-site material procurement, quality inspection, and shipping, while A.H.H.P.A. oversees supervision and coordination in Japan — a fully integrated Japan-USA supply chain.
In Corporate Alliance with Building Materials Consultants, Seattle, WA, U.S.A.
Start with a Single Photo.
Our Services
Three Steps to Preserve Your Legacy
"Does your home still carry the soul of America?" Through appraisal, restoration, and certification, we safeguard the full value of your estate.
Ⅰ — Heritage Appraisal
Authenticity Appraisal
Rather than mechanical inspection, we apply our proprietary aesthetic standards to assess the architectural lineage of your home. We evaluate windows, doors, hardware, drywall, and plumbing to determine whether your home maintains authentic North American integrity.
By analyzing the minute manufacturer codes etched into glass corners, we cross-reference BMC's master inventory to pinpoint exact genuine parts — then source them directly from Seattle. Because we bypass domestic distributors entirely, there is zero middleman markup. The same investment yields a far superior, authentic result.
■ Pricing: Material cost (actual) + Technical labor + General construction + Coordination fee (15–20%) ■ Payment: Full advance payment required on material orders (U.S. industry standard)
Ⅲ — The Certification
Heritage Certification
Homes that successfully pass our rigorous appraisal and have been properly maintained and restored receive the "Official Heritage Preservation Certificate" along with a serialized solid brass recognition plaque. This is not merely a document — it is a publicly recognized guarantee of asset value when the property is sold.
In Corporate Alliance with Building Materials Consultants, Seattle, WA, U.S.A.
Start with a Single Photo.
For Homeowners
From "House" to "Home" — Forever.
We are committed to protecting your home and your peace of mind.
"A door component broke, but the manufacturer has withdrawn from Japan."
"The local contractor said the specs don't match and the entire wall must be demolished."
"There's no one to consult about maintenance — I don't know who to turn to."
When problems arise with a home you love, do you find yourself facing these walls?
That home holds windows, roofs, and doors that have spent decades protecting your family. To simply replace them wholesale is, we believe, a disservice to the history of the family who has lived within those walls.
A.H.H.P.A. is Japan's only specialist institution dedicated to ensuring that imported homes are never discarded after just 20 years.
Total Care
Five Pillars of Total Care
01
Genuine Parts Sourcing & Revival
A single broken component does not mean the entire system must be replaced. Through our direct partnership with BMC Seattle, we source authentic North American parts — even discontinued models — by analyzing manufacturer codes etched into glass.
Windows & Doors (Andersen, Pella, Marvin)
Brass Hardware & Locks (Baldwin)
Plumbing Fixtures (Kohler, Moen)
02
Restoration & Remodeling Support
Beyond simple repairs, we enhance the asset value and beauty of your home. From targeted restoration to full-scale remodeling — coordinated with our certified contractors.
Window & door restoration
Kitchen, bath & room remodeling
Exterior, porch & garden remodeling
03
Two-Tier Certification Program
You can begin with a single window or door.
STEP 1
Component Restoration Certificate
AHHPA Component Certification
Issued for each component properly restored using genuine parts. Accumulate certificates toward full estate certification.
STEP 2
Heritage Certification
AHHPA Official Preservation Status
The highest designation — awarded to estates demonstrating full authentic integrity. Includes the solid brass recognition plaque.
Appraisal: ¥50,000–¥80,000 (excl. tax)
04
USA Direct Import Concierge
If you live in an imported home, your interiors should be authentic too. Through our direct Seattle network, we source and import American lifestyle products unavailable through domestic retail channels.
Lighting fixtures & brass products
Premium fabrics & curtains
Vintage furniture & decorative items
Member rate: 15% / Non-member: 20%
05 REHOME
Home, Sweet Home —— There's No Place Like Home.
Restoration and remodeling is the process of reclaiming your family's happy moments.
We don't simply fix things physically. We revive the memories and affection embedded in your home, restoring it to its authentic self with care.
By restoring the "House" (the structure), the "Home" (the place you return to) reclaims its radiance.
As a child, I was captivated by the America on television. The wide living room. Soft light through heavy wooden windows. Family around the dining table, a terrace to the garden.
The home built to fulfill that dream holds within it an entire lifetime of history. It is a precious repository of memory — and of value — to be passed from parent to child, to grandchild.
That is the philosophy of REHOME.
Hidehiko Miyazaki
President & Representative Director / American Home Connector & Coordinator
Membership
Total Care Membership
A.H.H.P.A. serves as your home's dedicated "family physician" — protecting its long-term asset value.
¥30,000
6-Month Renewal / Excl. Tax
Priority maintenance & restoration response
Annual on-site inspection
Ongoing genuine parts sourcing
USA direct import (15% fee)
Component certificates (discounted)
Legacy Report management
Heritage Bazaar invitation
Secret Auction participation
In Corporate Alliance with Building Materials Consultants, Seattle, WA, U.S.A.
For Builders & Contractors
Beyond Build-and-Sell — The New Infrastructure for Heritage Stock.
A.H.H.P.A. provides builders and contractors with the materials, knowledge, and connections to work confidently with North American imported homes.
"We want to work on imported homes, but can't source the materials."
"The manufacturer discontinued the part — we can't find a match."
"We're not confident about how North American construction standards differ from Japanese ones."
Through our direct partnership with BMC Seattle, A.H.H.P.A. maintains a stable supply chain for authentic North American building materials unavailable in Japan.
We serve as a fair, neutral coordinator — providing material sourcing and technical knowledge so contractors can focus entirely on the work itself.
Three Support Programs
How We Support Your Business
01
Direct Import Material Sourcing
Andersen, Pella, Marvin windows and doors; Baldwin brass hardware; Kohler plumbing — sourced directly from BMC Seattle with zero domestic distributor markup. Discontinued parts identified by analyzing glass manufacturer codes.
Flashing tape application (fin-type waterproofing), scarf joint molding installation, drywall substrate preparation — we share the knowledge to achieve authentic results. All construction contracts are between the homeowner and contractor directly.
Build a track record with us and become an officially registered AHHPA Certified Contractor. Homeowner inquiries for restoration and remodeling are referred to registered contractors on a priority basis.
Registration: Free | Priority project referrals
In Corporate Alliance with Building Materials Consultants, Seattle, WA, U.S.A.
Register as a Partner
Registration is free. Contact us to get started.
For Real Estate Professionals
From Listings to Legacy — We Support Every Step.
A.H.H.P.A. provides real estate professionals with the tools, referrals, and support to confidently handle imported American home inventory.
"We have imported home inventory, but can't find qualified repair contractors."
"Post-sale maintenance concerns make it hard to recommend these homes with confidence."
"We need a document that objectively proves the property's value."
A.H.H.P.A. is Japan's only dedicated institution capable of supporting the full lifecycle of imported American homes — from buyer/seller referrals and pre-sale restoration to appraisal documentation and post-sale maintenance.
Four Value Propositions
How We Add Value to Your Business
01
Buyer & Seller Referrals
Our growing network of imported home owners includes both sellers and prospective buyers. Registered agents receive priority access to these referrals — a rare pipeline unavailable elsewhere.
Seller referrals from owner network
Buyer referrals & matching support
Commission: ~3% of brokerage fee to A.H.H.P.A. upon closing
02
Repair & Maintenance Support
"This home is backed by ongoing support." That single statement closes deals. We support pre-sale repairs and provide post-sale maintenance for new owners — giving buyers the confidence to commit.
Pre-listing restoration coordination
Annual inspection for new owners
Legacy Report management
03
Heritage Appraisal Certificate
Transform your listing from "used home" to "certified cultural asset." The AHHPA appraisal certificate is the most powerful sales tool available for imported home transactions.
Fee: ¥50,000–¥80,000 (excl. tax) | Registered agent discount available
04
Property Branding via Bronze Plaque
A solid brass recognition plaque commands immediate attention at first showing. It visually separates your listing from every competing property — the difference is unmistakable.
STANDARD: ¥30,000–¥50,000 (excl. tax)
HERITAGE Custom: ¥50,000–¥80,000 (excl. tax)
Registration
Register as a Partner Agent
■ Priority buyer & seller referrals from our owner network
■ Pre-sale and post-sale maintenance support
■ Discounted appraisal certificate issuance
■ Commission: ~3% of brokerage fee upon closing (no additional cost to homeowner)
■ Registration: Free
In Corporate Alliance with Building Materials Consultants, Seattle, WA, U.S.A.
Contact & Membership
Begin with a Single Photo.
Send us a photo of your concern through our LINE account. Our president will personally provide an initial assessment — completely free of charge.
Contact via LINE
Simply send a photo of your concern via LINE. Our president personally reviews each inquiry and responds within 24 hours.
No consultation fee.
Membership applications are also accepted through LINE.
※ On-site diagnosis (from ¥9,000) by appointment only ※ Service area: Kanagawa, Tokyo, Shizuoka and nationwide (inquire)
