# ADU Builder & Home Additions in Garden Grove, CA [Browser-friendly HTML version](https://www.remodelyourvibe.com/website-guide/pages/services/adus-additions/garden-grove/index) Source: https://www.remodelyourvibe.com/services/adus-additions/garden-grove Last modified: 2026-09-24T00:00:00.000Z Text part: 1 of 1 [Full website text index](https://www.remodelyourvibe.com/llms-full.txt) | [Services by city](https://www.remodelyourvibe.com/llms/services-by-city-006.txt) | [Previous page](https://www.remodelyourvibe.com/llms/pages/services/adus-additions/fountain-valley/index.txt) | [Next page](https://www.remodelyourvibe.com/llms/pages/services/adus-additions/cypress/index.txt) --- Image: Open-plan living room and kitchen with polished concrete floors 1. [Home](https://www.remodelyourvibe.com/) 1. [Services](https://www.remodelyourvibe.com/services) 1. [ADUs & Additions](https://www.remodelyourvibe.com/services/adus-additions) 1. Garden Grove Design · Permit · Build ### ADUs & Additions in Garden Grove Detached ADUs, garage conversions and additions, from plans to move-in. [Book a Consultation](https://www.remodelyourvibe.com/contact-us) [Call 818-300-2393](tel:+18183002393) #### Built for Garden Grove Homes Most of Garden Grove's homes date from the 1940s and 1950s, small one-story wartime tract houses with pitched roofs, followed by the one-story California Ranch homes of the 1950s and 1960s, whose sliding doors open onto patios. The streets run on a grid with no hillsides, so a backyard project here is seldom a question of slope or wildfire. What shapes it instead is the ground and the code: a majority of the city is subject to liquefaction, the eastern third along the East Garden Grove-Wintersburg Channel lies in FEMA Flood Zone A, and the zoning code fixes where a pool, its equipment and an outdoor counter or fire pit may sit. Additions and most accessory structures must also match the house in roof type, pitch, color and material, so a pool house or cabana reads as part of the original home. The majority of homes date from the 1940s and 1950s and follow the wartime tract style, small one-story houses with pitched roofs on concrete perimeter foundations, while homes of the 1950s and 1960s were mostly one-story California Ranch designs with sliding doors leading to patios, and in some neighborhoods large lawns and deep setbacks give a more rural feel. Single-family zoning runs in R-1 tiers with minimum lots of 5,000, 6,000, 7,200, 9,000, 11,000 and 15,000 square feet. The main house keeps a rear setback of 20 percent of lot depth up to 25 feet, a single-story addition may reach to within 10 feet of the rear property line only if 1,000 square feet of usable open space remains in the required rear yard, the same open space applies when detached accessory structures go in, and uncovered pools do not count toward the 50 percent lot coverage cap. We are a design-build team, which means the people who draw your project are the people who build it. Design, engineering, permits and construction run through one project manager and our own crews, so nothing gets lost in a handoff between a salesperson and a subcontractor. We are licensed, bonded and insured, [CSLB license #1119054](https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1119054) . Permits in Garden Grove: Residential plan review runs through the Building and Safety Division of the Community Development Department at 11222 Acacia Parkway, with submittals made through the city's online portal, Vivasoft, and flood zone information required on the plan coversheet; ADU plan sets also need a utility plan showing existing and proposed sewer, water, gas and electric service. Under the single-family standards a pool must sit at least five feet from side and rear property lines, 20 feet from the front property line and six feet from any structure, and pool heaters, pumps and filters may go in a side yard setback only when screened from view from public rights-of-way, with any equipment enclosure painted to match the house. A detached pool house or other accessory structure is capped at 800 square feet, one story and 17 feet, with no kitchen and no more than a half bath, while barbecues, counters and fire pits taller than 36 inches must keep five feet from side and rear property lines, 10 feet from a street side property line and 20 feet from the front. Permit details checked September 2026 against [Garden Grove Municipal Code](https://ecode360.com/42529107) . Rules change, so we confirm them again for your parcel. What We Build - Pool setback and equipment screening layout - Roof and finish matching on accessory structures - Pool house design within the 800 square foot cap - Outdoor kitchen and fire pit setback planning - Flood Zone A soils coordination for ADUs - Detached ADUs, ground-up - Garage conversions to living space - Junior ADUs within the main house - Room additions and bump-outs - Second-story additions - Full kitchens and bathrooms in the ADU - Separate utility metering where required - Private entries, patios and landscaping - Plans, engineering and city submittals - Title 24 energy compliance Local Conditions #### What to Know in Garden Grove These local conditions change the scope, the schedule and the budget. 01 The General Plan Safety Element names liquefaction and dynamic settlement as the seismic threats of particular concern: a majority of the city is subject to liquefaction and other areas carry moderate or high dynamic settlement potential, so soils conditions deserve attention before foundations for additions, ADUs or pool shells are designed. 02 Storm flooding is the primary hazard in the eastern third of the city, along the East Garden Grove-Wintersburg Channel, which FEMA designates Flood Zone A. Improvements to the channel and the Haster Retarding Basin have allowed many owners there to obtain a Letter of Map Amendment, and the city's residential submittal guideline notes that a soils report may be required for an ADU in Flood Zone A. 03 The Safety Element reports no high fire severity zones or wildland-urban interface areas within the city, and it describes a gridded street network with no hillsides, so slope retention and wildfire construction standards are not the usual constraints on a backyard here. Areas we serve in Garden Grove:West Garden GroveHistoric Main StreetKorean Business DistrictLittle Saigon Investment #### What It Costs in Garden Grove Real Southern California price ranges, not teaser numbers. ##### Detached ADU $150,000 to $400,000+ What moves it: square footage, finish level, utility runs, and site access; garage conversions typically run well below a ground-up detached build ##### Garage conversion ADU $80,000 to $180,000 What moves it: whether the existing slab and framing meet current code, how far utilities have to run, and the finish level of the kitchen and bathroom ##### Plans, drawings and permit management $4,500 to $25,000+ What moves it: project type and size, whether structural engineering, Title 24 or a soils report is required, and how many jurisdictions or review bodies are involved Your lot, access and finishes set the price. We walk the site, then show you where every dollar goes. [Get a line-item price for your Garden Grove property](https://www.remodelyourvibe.com/contact-us) The Process #### How We Work in Garden Grove 01 ##### Feasibility We check lot size, setbacks, utilities and access to confirm what your property will actually support. 02 ##### Design & 3D Layout, elevations and finishes, modeled in 3D so you approve the unit before submittal. 03 ##### Plans & Permits We prepare the full drawing set, handle engineering and Title 24, and manage the city submittal and corrections. In Garden Grove that submittal goes to City of Garden Grove Community Development Department, Building and Safety Division. 04 ##### Foundation & Framing Site prep, foundation, framing and dry-in by our own crews. 05 ##### Systems & Finishes Electrical, plumbing, HVAC, insulation, then kitchen, bath and interior finishes. 06 ##### Final Inspection We pass final inspection, walk the unit with you and hand over the keys. Questions #### What Garden Grove Homeowners Ask Who issues the permits for this work in Garden Grove? City of Garden Grove Community Development Department, Building and Safety Division. Residential plan review runs through the Building and Safety Division of the Community Development Department at 11222 Acacia Parkway, with submittals made through the city's online portal, Vivasoft, and flood zone information required on the plan coversheet; ADU plan sets also need a utility plan showing existing and proposed sewer, water, gas and electric service. Under the single-family standards a pool must sit at least five feet from side and rear property lines, 20 feet from the front property line and six feet from any structure, and pool heaters, pumps and filters may go in a side yard setback only when screened from view from public rights-of-way, with any equipment enclosure painted to match the house. A detached pool house or other accessory structure is capped at 800 square feet, one story and 17 feet, with no kitchen and no more than a half bath, while barbecues, counters and fire pits taller than 36 inches must keep five feet from side and rear property lines, 10 feet from a street side property line and 20 feet from the front. We prepare the drawings, make the submittal and handle plan-check corrections ourselves, so you are not the one chasing plan check. What makes building in Garden Grove different? The majority of homes date from the 1940s and 1950s and follow the wartime tract style, small one-story houses with pitched roofs on concrete perimeter foundations, while homes of the 1950s and 1960s were mostly one-story California Ranch designs with sliding doors leading to patios, and in some neighborhoods large lawns and deep setbacks give a more rural feel. Single-family zoning runs in R-1 tiers with minimum lots of 5,000, 6,000, 7,200, 9,000, 11,000 and 15,000 square feet. The main house keeps a rear setback of 20 percent of lot depth up to 25 feet, a single-story addition may reach to within 10 feet of the rear property line only if 1,000 square feet of usable open space remains in the required rear yard, the same open space applies when detached accessory structures go in, and uncovered pools do not count toward the 50 percent lot coverage cap. One local condition that shapes the work: The General Plan Safety Element names liquefaction and dynamic settlement as the seismic threats of particular concern: a majority of the city is subject to liquefaction and other areas carry moderate or high dynamic settlement potential, so soils conditions deserve attention before foundations for additions, ADUs or pool shells are designed. Which parts of Garden Grove do you work in? All of it, including West Garden Grove, Historic Main Street, Korean Business District and Little Saigon. Our crews run every job out of our Cahuenga Pass base in Los Angeles, with our own people on site. What does an ADU or addition cost in Garden Grove? Detached ADU: generally $150,000 to $400,000+ across Southern California. What moves it is square footage, finish level, utility runs, and site access; garage conversions typically run well below a ground-up detached build. We give line-item pricing after seeing the site rather than quoting a number over the phone. How long does an ADU take start to finish? Plan a realistic year. Design and engineering typically take one to three months, city plan check and corrections add several more, and construction usually runs four to eight months depending on size and site access. Is a garage conversion cheaper than a detached ADU? Usually yes, and often substantially, because the foundation, walls and roof already exist. The trade-offs are that you lose the garage, and older slabs and framing sometimes need upgrading to meet current code. Can I rent the ADU out? California ADU law is designed to allow long-term rental, and an ADU is one of the few ways to add rentable square footage to a single-family lot. Short-term rental rules vary by city, so confirm your local ordinance before counting on that income. Do you handle the permits? Yes. Plans, engineering, Title 24 and the city submittal are all handled in-house, including responding to plan-check corrections. That is a service we sell on its own, so it is not something we hand off. #### More Services in Garden Grove [Pool & Spa Remodeling in Garden Grove](https://www.remodelyourvibe.com/services/swimming-pool-spa/garden-grove) [Backyard & Outdoor Living in Garden Grove](https://www.remodelyourvibe.com/services/exterior-remodeling/garden-grove) [Everything we build in Garden Grove](https://www.remodelyourvibe.com/service-areas/garden-grove) #### ADUs & Additions Nearby [ADUs & Additions in Santa Ana](https://www.remodelyourvibe.com/services/adus-additions/santa-ana) [ADUs & Additions in Fountain Valley](https://www.remodelyourvibe.com/services/adus-additions/fountain-valley) [ADUs & Additions in Cypress](https://www.remodelyourvibe.com/services/adus-additions/cypress) [ADUs & Additions in Orange](https://www.remodelyourvibe.com/services/adus-additions/orange) [ADUs & Additions in Huntington Beach](https://www.remodelyourvibe.com/services/adus-additions/huntington-beach) [ADUs & Additions in Anaheim Hills](https://www.remodelyourvibe.com/services/adus-additions/anaheim-hills) Planning Guides #### Before You Build in Garden Grove Costs, materials and process notes from our own projects. [ADU Cost Breakdown by Size in Los Angeles A detached ADU in Los Angeles runs $150,000 to $400,000-plus. Here is the real cost broken down by unit size, with the soft costs, utility work and finish decisions that move the number. Read guide](https://www.remodelyourvibe.com/articles/adu-cost-breakdown-by-size-los-angeles) [Garage Conversion to ADU: The Step-by-Step Build A garage conversion runs $80,000 to $180,000 in Southern California. Here is the real sequence, from slab testing and plan check to the raised floor, the mini-split and final sign-off. Read guide](https://www.remodelyourvibe.com/articles/garage-conversion-adu-step-by-step) [ADU Rental Income Math in the San Fernando Valley A one-bedroom ADU in the San Fernando Valley rents for roughly $2,100 to $2,900 a month. Here is the honest arithmetic on payback, carrying costs and what the unit adds to the property. Read guide](https://www.remodelyourvibe.com/articles/adu-rental-income-san-fernando-valley) [Second Story Addition vs Building Out: Which Costs Less Building out runs $350 to $500 per square foot. Going up runs $450 to $700. Here is when the cheaper option is actually the wrong one, and what drives each number. Read guide](https://www.remodelyourvibe.com/articles/second-story-addition-vs-building-out) #### Planning an ADU in Garden Grove? Sit down with your project manager and get an accurate estimate. We call you back within one business day. [Book a Consultation](https://www.remodelyourvibe.com/contact-us) [818-300-2393](tel:+18183002393) Licensed, bonded & insured · [CSLB license #1119054](https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1119054) --- End of text part 1 of 1. This page is complete.