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Could you ADU?

Ever since state deregulation laws passed in 2020, ADUs have been all the buzz. Based in Sacramento, Redwood ADU has been taking advantage of these laws to build beautiful, functional, and much needed housing.  

Standard Design Features

We believe in building things the right way, the first time. We include some standard design details which other builders don't - these details don't break the bank, and provide a great value and utility. They help our buildings stand the test of time, and come from the experience of wishing we had included these items on previous projects.

We include an inset washer hookup box with water supply and drain. Also, we include an inset dryer exhaust cavity so the dryer hose fits neatly in the wall and the dryer can slide all the way back to the wall.

Washer/Dryer Boxes

We include an inset washer hookup box with water supply and drain. Also, we include an inset dryer exhaust cavity so the dryer hose fits neatly in the wall and the dryer can slide all the way back to the wall.

In order to ensure a durable, leak free window installation for years to come, we use a couple specialty products. First, we use a high-quality oil-based sealant between window flange and wall. Next, we use an upgraded Butyl flashing tape to flash the exterior of the window to the wall.

Superior Window Flashing

In order to ensure a durable, leak free window installation for years to come, we use a couple specialty products. First, we use a high-quality oil-based sealant between window flange and wall. Next, we use an upgraded Butyl flashing tape to flash the exterior of the window to the wall.

Inside corners are the first places grout will crack as the building experiences slight movement over time. For this reason, before installing grout, we use silicone at all critical joints, and any joints prone to cracking. This insures a waterproof seal for the life of the install.

Silicone in Tile Inside Corners

Inside corners are the first places grout will crack as the building experiences slight movement over time. For this reason, before installing grout, we use silicone at all critical joints, and any joints prone to cracking. This insures a waterproof seal for the life of the install.

Whenever we install tile, we use a liquid applied waterproofing membrane under the tile. This ensure no future leaks.

Roll-on Moisture Barrier under Tile

Whenever we install tile, we use a liquid applied waterproofing membrane under the tile. This ensure no future leaks.

We use A grade sanded plywood for the roof sheathing that will be visible and painted. This means no knots on the surface, leaving a cleaner finish and long lasting paint job with no sap bleed-through.

Sanded Plywood on Eave Overhangs

We use A grade sanded plywood for the roof sheathing that will be visible and painted. This means no knots on the surface, leaving a cleaner finish and long lasting paint job with no sap bleed-through.

Prior to installing flooring, we grind the entire subfloor flat. This ensures a completely flat floor, but more importantly greatly improves the life of flooring, reducing pressure on joints.

Slab/Subfloor Grinding for Extra Flat Floor

Prior to installing flooring, we grind the entire subfloor flat. This ensures a completely flat floor, but more importantly greatly improves the life of flooring, reducing pressure on joints.

We include ceiling mounted slim-cassette style mini splits standard. These units are completely recessed inside the ceiling, and more attractive than the standard wall-mounted mini splits. Also, they don't get in the way of furniture or pictures.

Low Profile Ceiling Mount Mini Splits

We include ceiling mounted slim-cassette style mini splits standard. These units are completely recessed inside the ceiling, and more attractive than the standard wall-mounted mini splits. Also, they don't get in the way of furniture or pictures.

Custom designed cabinets to fit the exact space. Custom finishes free of charge. Solid hardwood faces and doors - 1/2" plywood boxes. No MDF or OSB.

High-quality Cabinets

Custom designed cabinets to fit the exact space. Custom finishes free of charge. Solid hardwood faces and doors - 1/2" plywood boxes. No MDF or OSB.

We spray a "Cure and Seal" product on all our concrete work to #1 ensure the moisture gets better trapped in the concrete to promote complete curing and strength, and #2 to help repel stain and reduce porosity of finished concrete.

Sealant on all Concrete

We spray a "Cure and Seal" product on all our concrete work to #1 ensure the moisture gets better trapped in the concrete to promote complete curing and strength, and #2 to help repel stain and reduce porosity of finished concrete.

We set our exterior walls into the building by 1/2" so that the plywood is flush with our foundation. This provides better protection to the plywood, and allows siding to run continuously down to the foundation with no gaps.

Exterior Wall Inset on Slab

We set our exterior walls into the building by 1/2" so that the plywood is flush with our foundation. This provides better protection to the plywood, and allows siding to run continuously down to the foundation with no gaps.

5/8" thick plywood is stiffer than standard 1/2" plywood, and preferred when spanning 24" rafters/trusses. Promotes durability when walking on the roof and a flatter more attractive roof in the long run.

5/8" Thickness Roof Sheathing w/ Clips

5/8" thick plywood is stiffer than standard 1/2" plywood, and preferred when spanning 24" rafters/trusses. Promotes durability when walking on the roof and a flatter more attractive roof in the long run.

We only use Plywood sheathing on walls and roof. Plywood is know for being more resistant to water than OSB, leading to a more durable structure.

Plywood Wall/Roof Sheathing (not OSB)

We only use Plywood sheathing on walls and roof. Plywood is know for being more resistant to water than OSB, leading to a more durable structure.

We completely mask off windows prior to drywall to prevent any drywall dust or paint from getting into your brand new windows.

Window Protection

We completely mask off windows prior to drywall to prevent any drywall dust or paint from getting into your brand new windows.

Adding glue to mitre joints keeps these high visibility trim details looking great for the lifetime of the home.

Glued Mitre Joints on Trimwork

Adding glue to mitre joints keeps these high visibility trim details looking great for the lifetime of the home.

We always install an underground conduit from the main service drop to the other dwelling onsite, in order to avoid two cable lines in the air. Additionally, we provide a path from the exterior of the ADU directly to a jack inside the house where a modem can conveniently be located.

Low Voltage Conduit

We always install an underground conduit from the main service drop to the other dwelling onsite, in order to avoid two cable lines in the air. Additionally, we provide a path from the exterior of the ADU directly to a jack inside the house where a modem can conveniently be located.

Solid core doors have a substantial feeling. They transmit much less sound than a hollow core, and improve the sense of luxury.

Solid-Core MDF Doors

Solid core doors have a substantial feeling. They transmit much less sound than a hollow core, and improve the sense of luxury.

This box contains a removable and cleanable lint screen that traps lint before it makes its way through venting where it can lead to a clogged vent.

Dryer Vent Box w/ Lint Screen

This box contains a removable and cleanable lint screen that traps lint before it makes its way through venting where it can lead to a clogged vent.

200A Panel provides plenty of power for increased power consumption in the future. Second meter allow ADU occupant to pay their bill separately from main account.

200A Dedicated ADU Electric Meter

200A Panel provides plenty of power for increased power consumption in the future. Second meter allow ADU occupant to pay their bill separately from main account.

Reinforced stainless steel gutter guards make yearly gutter cleaning a thing of the past.

Gutters + Stainless Gutter Guards

Reinforced stainless steel gutter guards make yearly gutter cleaning a thing of the past.

Wood window aprons at bottom of windows to improve durability, and add shelf space for plants, decorations, etc.

Window Apron Trim Detail

Wood window aprons at bottom of windows to improve durability, and add shelf space for plants, decorations, etc.

Doorbell and chime wired to a transformer. Also compatible with "Ring" style cameras.

Doorbell and Chime

Doorbell and chime wired to a transformer. Also compatible with "Ring" style cameras.

Decora style devices have a more uniform look and provide more options for outlets and switches.

Decora Style Outlets and Switches

Decora style devices have a more uniform look and provide more options for outlets and switches.

While not required, end-of-line clean outs provide an easy way to clear and sewer clogs that may occur.

End-of Line Sewer Clean-out

While not required, end-of-line clean outs provide an easy way to clear and sewer clogs that may occur.

Copper stub-outs provide a rigid and durable plumbing connection that will hold up over time.

Copper Plumbing Stub-outs

Copper stub-outs provide a rigid and durable plumbing connection that will hold up over time.

We include a solar-powered attic vent which help remove hot air from the attic, greatly reducing temperature inside the house and AC usage.

Solar Attic Fan

We include a solar-powered attic vent which help remove hot air from the attic, greatly reducing temperature inside the house and AC usage.

State Law Keynotes

Below are the key ADU state laws passed within the last few years, that have deregulated ADUs, and allowed their development to thrive.

Reduced Impact Fees

No "Impact Fees" on ADUs less than 750sqft. Reduced "Impact Fees" on all ADUs.

Parking Requirements

Additional parking shall not be required in the following circumstances: ADU within 1/2 mile of transit - ADU in historical/architectural district - On-street parking permits required but not offered to ADU occupant - ADU within one block of car-share vehicle.

Height Limits

An ADU is allowed to be a minimum of 16ft tall. 18ft tall if within 1/2 mile of transit. An additional 2ft may be granted to match roof pitch of existing home.

No Lot Coverage Limits

Any ADU 800sqft and under does not need to meet lot coverage requirements.

Guaranteed ADU Size

Local agencies must allow an ADU to built if it meets the following criteria: 800sqft size, 1000sqft size if 2 bed or more.

Plan-Check Time Limits

Building departments must respond to an ADU application with approval, denial, or corrections within 60 days, or else the permit is deemed approved.

Ministerial Approval

ADU permits must be approved ministerially - no special review process beyond standard permit review is allowed.

Short-Term Rental

Local agencies may specify that ADUs be rented for a period of no less than 30 days at a time.

Skeptical? Read the ADU State Law word-for-word direct from the source!

Here's our data from previous ADU inquiries:

Check out our YouTube Channel!

Gastman way ADU Open House - 737 sqft 2bd 2ba. #adu #contractor #designbuild #sacramento

Redwood ADU
Gastman way ADU Open House - 737 sqft 2bd 2ba. #adu #contractor #designbuild #sacramento
Gastman way ADU Open House - 737 sqft 2bd 2ba. #adu #contractor #designbuild #sacramento

Gastman way ADU Open House - 737 sqft 2bd 2ba. #adu #contractor #designbuild #sacramento

02:40
ADU Consultation #contractor #construction #sacramento #adu

ADU Consultation #contractor #construction #sacramento #adu

00:48
25 Thoughtful ADU Project Upgrades

25 Thoughtful ADU Project Upgrades

08:57
40 yard foundation pour #contractor #construction #sacramento #adu #concrete #designbuild

40 yard foundation pour #contractor #construction #sacramento #adu #concrete #designbuild

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(916) 905-4710

Sacramento, CA 95817
CSLB LIC 1098046

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