Cost to design and build a second-floor addition in Berkeley
Steve, a homeowner in Berkeley, wanted to add more space to his one-bedroom, one-bathroom home. He hired New Avenue to design and build a second story with an additional bedroom and an additional bathroom. Here are the plans and costs.
Will I have to pay more property taxes if I add an ADU in El Cerrito?
At $1,500 a year, the tax increase on this project breaks down to $125 per month. The homeowner easily recoups that with the savings on housing costs. The owner’s mother would have to pay $2,000 per month for a one-bedroom home of her own. If the family rents the unit out, they’ll bring in at least $2,000 per month in rent.
Cost to Build a 640-Square-Foot Accessory Dwelling in Berkeley
Cost to Design, Permit, and Build a One-Bedroom ADU with Home Office in Mountain View, CA
A homeowner in Mountain View asked New Avenue to create a 640-square-foot accessory dwelling that would serve as a comfortable home for a family member. Here’s what the project cost.
Adding a detached office/bedroom in Oakland
These Oakland homeowners wanted to build a detached office/studio that could also be used as a guest room. They also wanted to remodel part of the main home. The existing office would become a bedroom, and the existing half bath/laundry would be upgraded to include a shower. One of their requirements: preserve the property’s beautiful trees and tea house. Here’s the design.
Converting a basement into an apartment or ADU in San Francisco
The basement, which was entirely for storage, makes the perfect place to add an accessory dwelling unit. With a living/dining area, kitchen, bathroom, and patio, this will be a great home for a single person, a couple, or a pair of roommates. Plus, the homeowners don’t have to give up all of their storage. A storage room accessible from the main home is included in the plan.
Converting a garage to a guest suite and storage in Berkeley
Many homeowners find that their detached garages could be more useful as something else: a guest suite, a home office, or a rentable accessory dwelling unit (ADU). Here are plans and drawings for one garage conversion project in Berkeley.
Design for a detached office in Oakland
Knowing the value an accessory dwelling can provide, he asked New Avenue to create an accessory structure that could be converted into a full accessory dwelling later. The designer created a 288-square-foot structure with space to add a kitchen and a shower in the future. Here are the drawings.
Plans for a detached accessory unit, home office, or guest house in San Mateo
This design is unique in that an interior ladder leads to a loft, which opens onto an upper-level deck. The unit also includes a bedroom, half bath, and living area. large windows and sliding glass doors provide ample natural light. The plans call for a green roof, including climbing vines to form a privacy wall on the upper deck.
Floor plans for a one-bedroom guest house with kitchen, bathroom, and attic in Berkeley
If Patricia rents out her new ADU, she can use the rental income to pay for the mortgage on the main home and the mortgage on the ADU. Or she can use the money to cover other expenses such as education, travel, retirement…anything she needs now or in the future. Here are the floorplans and elevations for Patricia’s new ADU in Berkeley.
Converting a workshop to a guest room or home office in Redwood City, CA
Robert and Rose of Redwood City, CA, owned a beautiful property with a detached workshop and a detached garage. They came to New Avenue looking to get more from their existing structures through a major remodel. New Avenue created a design that would unite the two smaller structures, making the most of the existing buildings while forming a usable space that supports the homeowners’ needs.
Adding an accessory structure for a detached office or studio with garage in Redwood City, CA
A New Avenue design professional designed a 637-square-foot backyard accessory building that met the homeowner’s needs and fit in perfectly with the main home’s design and landscaping. The design includes a bathroom, a one-car garage, and a hobby room. This will be an ideal place for the homeowner to use as a home office, a creative studio, or a workroom for any activity that requires a dedicated space. Here are the plans.
Cost to design a one-bedroom, one-bathroom ADU in San Jose
How much will my property taxes increase if I build a second-story addition in California?
When adding an addition or building an accessory dwelling, your property taxes will go up. In general, we expect an increase of one-half of one percent of the total cost of the project. In this case, the family will see a tax increase of $2,625 per year. The total cost of a project like this is $525,000. That includes everything: design, permitting, engineering, all the red tape, site work, and construction.
Cost to add a one-room accessory dwelling to a home in Menlo Park
This project, built in 2018, cost a total of $290,964.78 for design, permitting, and construction.
With a versatile design like this one, the family will be able to use the ADU as a gathering space, an additional home, or a rental for additional income. Over time, the ADU can serve multiple purposes, evolving to meet the owners’ needs.
New Avenue Contractors Lift a House in Oakland, Add an ADU
Building a two-room workshop with bathroom in Concord
Floor plan for a 476-square-foot accessory dwelling in Los Gatos, California
In an interesting twist on a garage conversion, a homeowner in Los Gatos, CA, contacted New Avenue to add an ADU that could one day be converted into a garage if necessary.
Here’s the floor plan.
The homeowner will be able to rent this home out for more than $3,000 per month, or they can use it for family and guests. If the owners decide they need this space as a garage later, it can be converted.
Cost to add a 430-square-foot backyard cottage in Berkeley
The backyard’s slope provided a lovely view from the rear of the yard, and Betsy hoped to take advantage of that in adding an ADU for her family. A New Avenue design professional created an ADU that could serve as a comfortable home and gave it a large deck and stairs to accommodate the unique backyard. The plans include a bedroom, a bathroom, a kitchen, and a living area.
Building a backyard office and darkroom in Berkeley
When Valerie and Tim wanted to add a darkroom and home office to their property in Berkeley, they contacted New Avenue. The space in their backyard was perfect for a detached accessory structure, and New Avenue’s design professional created a place that would work as storage, a creative studio, and a workspace for the homeowners. The space includes ample storage, an important consideration for those who want more space for their work and hobbies.
Start your journey
Reach out to New Avenue today to begin the transformational process of adding an ADU, renovating your home, and designing and building a custom house for your family.