In 2026 a ADU typically adds $200,000 to $350,000 in immediate property value.An accessory dwelling unit (ADU) is a separate living space within a house or on the same property as an existing house. These units are not legal unless they have been established through a permit process. A legally permitted unit in the home is called an attached accessory dwelling unit (AADU).

ADU

in 2026 a DADU typically adds $200,000 to $350,000 in immediate property value.A legally permitted unit on the property (but not within the home) is called a detached accessory dwelling unit (DADU) or backyard cottage. Tiny houses, with foundations, are considered DADUs.

DADU

in 2026 A standard garage might cost $45,000 and add $65,000 in value. But a garage designed to be an ADU-ready DADU could cost $70,000 and eventually add $250,000+ to the property value once finished.Garage for two cars with deck on the top, building garage, additional garage, atached garage, detached garage , garage for 2 cars, garage with deck on the top

Building garage.

Typically, a well-constructed deck provides a return on investment between 65% and 90%. This means that if you spend $20,000 on a professional deck installation, you can expect the market value of your home to increase by approximately $14,000 to $18,000 immediately.Building decks, remodeling decks, wood decks, roof for deck, deck on garage, wood porches and decks, building patio,

Building Decks.

In the Pacific Northwest, a "finished" garage is a major selling point. in 2026 An epoxy floor transforms a dusty, stained concrete slab into a clean, showroom-quality space. Appraisers and buyers often view an epoxied garage as an "extra room" rather than just a parking spot, which can justify a higher asking price.Epoxy floor, epoxy floor installation, floor coating, design of epoxy floor, epoxy bulk floors. Polishing concrete floor,concrete painting, industrial epoxy floor, polish floor.

Epoxy floors

Building of hangars, sheds, building blocks sheds, bricks sheds, wood sheds, metal sheds, build a backyard shed. In 2026 Many owners are now building "Hangar-homes" where the second floor is a luxury ADU. This "double-dip" in value adds both a high-end rental unit and a massive storage facility to the property. Permitting: Since you already handle lot eliminations and permits in King County, you have the expertise to navigate the specific "Aviation Overlay" zoning that many other builders struggle with.

Building hangars, sheds

1. The Gazebo: The "Outdoor Room" A gazebo is a freestanding structure with a solid, fully covered roof. Design: Usually octagonal, oval, or rectangular with a pitched roof (often featuring a cupola or "cap" at the top). Protection: Offers 100% shelter from rain and direct sun. In our Washington climate, this makes the space usable year-round. Features: Often built with a raised floor, railings, and sometimes even screens or glass windows to keep out insects or wind. Best For: Dining areas, hot tub enclosures, or a formal focal point in a large garden. 2. The Pergola: The "Architectural Frame" A pergola is a structure with an open-slat or latticed roof supported by columns.

Gazebo/Pergola

in 2026for a high-traffic commercial space or a modern residence, polished concrete is a premium upgrade that offers benefits far beyond simple aesthetics. Unlike epoxy, which is a coating, polishing actually changes the molecular structure of the concrete to make it harder and denser. Concrete floor, concrete painting, industrial epoxy floor, polish floor, grinding and polishing concrete floor

Polishing concrete floor

Сoncrete painting, concrete painting, industrial epoxy floor, polish floor, surface preparation of concrete floor

Concrete floor painting

Rooms remodeling, remodeling office, windows, doors, slidung doors, fence, millwork

Remodeling

Combination of porch and deck, the wooden porch, porch for the house

Building of porches

Laying flags and slabs, the paving of slab for patio, backyard or roads, the laying paving slabs

The paving of slab

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