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Auctor
Modern Pacific Northwest home with dark cedar siding and warm interior lighting among tall evergreens

Seattle · Tacoma · Pacific Northwest

Residential construction and development, built for the Pacific Northwest.

From ADUs and major renovations to new homes and infill development, AUCTOR turns underused properties into well-built, lasting places.

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Introduction

We build properties with a future.

AUCTOR works across the full life of a residential property, from improving an existing home to developing an overlooked lot from the ground up. We combine hands-on construction experience with an owner's understanding of budgets, schedules, permits and long-term value.

  • Build it properly

    Methods and materials chosen for how they perform over decades, not how they look on day one.

  • Communicate clearly

    Direct answers on cost, schedule and constraints, including the answers nobody wanted.

  • Think beyond the immediate project

    Decisions weighed against how the property will be used and valued years from now.

Services

What we build and coordinate.

Five areas of work, from a single site improvement to full residential development.

  • Detached accessory dwelling unit with warm wood siding and black window frames in a Pacific Northwest backyard

    ADUs and DADUs

    Detached backyard homes, attached units, garage conversions and other permitted living spaces designed around the property and its long-term use.

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  • Renovated kitchen with white oak cabinetry, natural light and restrained modern finishes

    Renovations and Additions

    Major renovations, property transformations, additions and conversions that improve function, livability and value.

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  • Wood framing of a new two-story Pacific Northwest home under an overcast sky

    New Home Construction

    Ground-up residential construction for property owners, investors and development partners.

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  • Newly poured concrete driveway with gravel drainage edge beside a Pacific Northwest home

    Site and Exterior Improvements

    Driveways, concrete, grading, drainage and selected exterior projects that require coordinated planning and dependable execution.

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  • Cleared urban infill residential lot surrounded by existing homes and evergreens

    Residential Development

    Acquisition, feasibility, entitlement, redevelopment, infill construction and spec-home development throughout the Pacific Northwest.

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For homeowners and clients

Have a construction project?

Whether it is an ADU, renovation, addition, driveway or new home, tell us what you are planning.

Start a Project

For owners, brokers and partners

Know of a promising property?

We review houses, vacant land, teardown opportunities and residential development sites submitted by owners, brokers and wholesalers.

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Featured projects

Work in progress and on the boards.

Sample records are shown below while professional photography is being produced. Each is labeled as a placeholder.

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  • Detached accessory dwelling unit with wood siding and gravel courtyardCompletedPlaceholder

    ADUs

    Backyard DADU (placeholder)

    North Seattle, WA

    Sample record for a detached accessory dwelling unit built at the rear of an existing single-family lot.

    Scope
    Feasibility and siting · Permitting · Foundation and framing · Utility connections · Interior finishes
  • Renovated kitchen interior with oak cabinetry and natural lightCompletedPlaceholder

    Renovations

    Bungalow Renovation (placeholder)

    Tacoma, WA

    Sample record for a whole-home renovation of an older bungalow, including layout changes and system upgrades.

    Scope
    Structural repair · Kitchen and bath reconfiguration · Electrical and plumbing · Insulation and envelope · Finishes
    Before: Renovated kitchen interior with oak cabinetry and natural light
    Before
    After: Renovated kitchen interior with oak cabinetry and natural light
    After
  • Modern home exterior with muted green siding and concrete entry stepsActivePlaceholder

    AUCTOR Developments

    Infill Spec Home (placeholder)

    South King County, WA

    Sample record for a ground-up spec home developed by AUCTOR on an underused infill lot.

    Scope
    Acquisition and feasibility · Design and engineering · Permitting · Site work · Full construction
    Before: Modern home exterior with muted green siding and concrete entry steps
    Before
    After: Modern home exterior with muted green siding and concrete entry steps
    After

Process

A straightforward path from property to completion.

  1. 01

    Initial Conversation

    We learn about the property, project goals, timing and available information.

  2. 02

    Feasibility and Scope

    We review site conditions, permitting considerations, preliminary budget and the most practical path forward.

  3. 03

    Planning and Preconstruction

    Plans, engineering, selections, estimates, scheduling and permit coordination are organized before construction begins.

  4. 04

    Construction

    AUCTOR coordinates the work, communicates progress and manages the project through inspections.

  5. 05

    Completion

    We perform the final review, resolve outstanding items and deliver a finished project built for its intended use.

Why AUCTOR

How we work, in four points.

  • Builder and owner perspective

    We evaluate decisions for construction quality, cost, schedule and long-term property value.

  • Direct accountability

    Clients and partners communicate with the people responsible for the work.

  • Permit-conscious planning

    Projects are approached with permitting, inspections and documentation in mind from the beginning.

  • Pacific Northwest practicality

    We account for local weather, drainage, site conditions, materials and neighborhood context.

About

Founder-led, by design.

AUCTOR was founded by two partners with a shared interest in construction, real estate and the potential hidden in overlooked properties. The company is being built around a simple standard: approach every project as though we will own the finished result ourselves.

Meet AUCTOR
  • Founder photograph
    to be added

    Peter Prins

    Co-Founder

  • Founder photograph
    to be added

    Thaddeus Copling

    Co-Founder

What can we build from here?

Tell us about your home, lot, development opportunity or construction project.

Start a ProjectSend Us a Property
Start a ProjectSend a Property