Service · ADU Construction

A second home
on your
own lot.

San Diego homeowners can now build ADUs by right — no public hearings, no neighbor approval needed. We design, permit, and build fully finished accessory dwelling units that generate rental income and add lasting value to your property.

Completed ADU by Lovering Remodeling & Construction
60+
ADUs Built
12 wks
Avg. Timeline
$200k
Avg. Investment
20%+
Avg. Property Value Increase
Completed ADU interior
60+ ADUs completed
What We Do

California's biggest
home investment opportunity

Since 2020, California law requires cities to approve most ADU permits by right. In San Diego, that means you can add a fully independent living unit to your property without discretionary approval — no hearings, no neighbor objections, no uncertainty. It's one of the most accessible and highest-return home investments available to San Diego homeowners today.

We manage the entire ADU process in-house: feasibility assessment, architectural plans, permitting, foundation and framing, plumbing, electrical, HVAC, and complete interior finishing. One team, one contract, one point of accountability from the first consultation to the day your tenant moves in.

  • Feasibility study and lot assessment before any design costs
  • Full architectural plans and structural engineering coordinated in-house
  • All City of San Diego permits submitted and managed by us
  • Plumbing, electrical, and HVAC all coordinated in-house
  • 2-year workmanship warranty on every ADU we build
Start with a Free Quote
Scope of Work

Everything from
plans to move-in ready

We manage every trade from the first site visit to the final Certificate of Occupancy — so you never have to coordinate between contractors on your own.

Design & Architecture

We work with licensed architects to produce permit-ready drawings that maximise your buildable footprint, comply with San Diego zoning codes, and reflect how the unit will actually be used and rented.

Foundation & Framing

Excavation, concrete footings, foundation walls, and full structural framing — engineered to code and inspected at every phase before the next begins. The structure is where ADUs succeed or fail long-term.

Exterior Envelope & Roofing

Roofing, siding, windows, and exterior doors installed to match or complement your main home's architecture — keeping the property looking cohesive and maximising street appeal and rental desirability.

Electrical & Lighting

Full panel setup or tie-in, all new circuits, recessed lighting, exterior lighting, EV charging rough-in, and every inspection passed before drywall closes — all to current California Title 24 energy standards.

Plumbing & Fixtures

Full kitchen and bathroom plumbing rough-in, fixture installation, water heater, and connection to existing or new utility service — all handled by licensed plumbers with all required inspections passed.

Flooring & Finishes

LVP, tile, and carpet installed over appropriate subfloor systems. Drywall hung and finished to Level 4, interior paint, trim, and all millwork — everything a tenant expects from a quality rental unit.

HVAC & Mini-Split Systems

Ductless mini-split systems are the standard for ADUs in San Diego — energy-efficient, compact, and easy to zone. We size, supply, and install the right system for your unit's square footage and orientation.

Permits & Inspections

We prepare and submit all permit documentation to the City of San Diego's Development Services Department, manage every inspection, and obtain your Certificate of Occupancy — the legal document required before any tenant can move in.

How Homeowners Use Them

One ADU.
Endless possibilities.

Tell us how you plan to use your ADU and we'll design around that goal from day one — whether it's maximising rental income or housing someone you love.

Long-Term Rental Unit
Most Popular

Long-Term Rental Unit

The most common ADU goal in San Diego — a fully independent unit rented to a long-term tenant. With average rents exceeding $2,000/month for a 1-bedroom in San Diego, the ADU typically pays for itself within 8–12 years while adding significant equity to your property.

Short-Term Rental (Airbnb / VRBO)
High Demand

Short-Term Rental (Airbnb / VRBO)

San Diego's tourism market makes short-term rentals highly lucrative. We design ADUs with guests in mind — separate entrance, privacy from the main home, keypad entry, and finishes that hold up to high turnover while staying attractive in listing photos.

Galley kitchen layout
Multi-Generational

In-Law & Family Suite

Keep family close without living on top of each other. An ADU provides aging parents, adult children, or extended family with genuine independence — their own kitchen, bathroom, entrance, and living space — while you remain steps away when needed.

U-shaped kitchen layout
Best for Smaller Lots

Junior ADU (JADU)

A Junior ADU is a conversion of existing space — a garage, spare bedroom, or attached structure — into a self-contained unit up to 500 sq ft. Faster to permit, lower to build, and still generates meaningful rental income or provides flexible living space on smaller San Diego lots.

Before You Begin

Four things every homeowner
needs to know first

ADUs have specific legal, zoning, and utility requirements. We walk you through all of these at the consultation so there are no surprises mid-project.

01
By-Right Approval

California Law Is On Your Side

Since 2020, California state law (AB 68, SB 13, AB 881) requires most cities to approve ADU permits ministerially — meaning no public hearings, no discretionary review, and no neighbor veto power. In San Diego, the vast majority of single-family lots are eligible to add at least one ADU and one Junior ADU. We confirm your eligibility at the first visit before any design costs are incurred.

02
Know Before You Design

Setbacks & Size Set the Limits

Your ADU must meet minimum setbacks — typically 4 feet from rear and side property lines for detached ADUs. Maximum size depends on your lot size and zoning designation, but California law now allows up to 1,200 sq ft regardless of lot coverage limits. We research your specific parcel, pull your plat, and confirm the buildable envelope before a single line is drawn.

03
Plan Early

Utility Connections Require Lead Time

A detached ADU may require its own water, sewer, and electrical service — or it may be able to share your existing connections depending on capacity. We coordinate with SDGE and the City of San Diego's utilities department early in the design phase so infrastructure decisions don't delay your permit or your construction schedule.

04
Always Required

Permits Protect You — and Your Tenant

All ADU construction in California requires a building permit, and any unit rented without a Certificate of Occupancy is illegal. Unpermitted ADUs cannot be legally rented, are excluded from your homeowner's insurance, and create serious liability at resale. We pull every permit, manage every inspection, and hand you a closed permit and a legal, rentable unit at the end. That is non-negotiable — and it's what you're paying for.

How It Works

Six steps from
idea to move-in ready

ADU projects have a longer planning phase than typical remodels because permitting and design must be done right before construction starts. Here's exactly how we approach it — and why the sequence matters.

01

Feasibility & Consultation

We visit your property, confirm your lot's eligibility, review setbacks and zoning, assess utility capacity, and discuss your goals — rental income, family use, or both. No design costs until you know exactly what's possible.

02

Design & Engineering

Architectural plans are drawn to maximise your buildable footprint and meet all code requirements. Structural engineering is coordinated in-house. You review and approve the design before anything is submitted to the city.

03

Permit Submission

We prepare and submit the full permit package to the City of San Diego's Development Services Department, respond to any plan-check comments, and manage the approval process so you never have to deal with the city directly.

04

Foundation & Framing

Once permits are issued, excavation and foundation work begins. Full structural framing follows, with the exterior envelope — roofing, siding, windows, and doors — completed before any interior work begins on your main home connection.

05

Mechanical Rough-In & Inspections

Electrical, plumbing, and HVAC rough-in in the correct sequence, with each trade inspected before insulation and drywall close the walls. Utility connections are coordinated with SDGE and the city during this phase.

06

Finishing & Certificate of Occupancy

Drywall, paint, flooring, kitchen, bathroom, lighting, and all finish details. Final inspection scheduled and passed with the city. Certificate of Occupancy issued — the legal document that makes your unit rentable. Punch-list walkthrough until you're fully satisfied.

$2k+
Average Monthly Rental Rate San Diego's rental market consistently delivers $2,000–$3,500/month for a well-finished 1–2 bedroom ADU — making most ADUs cash-flow positive within their first year of renting.
+20%
Average Property Value Increase Adding a legal ADU meaningfully increases your home's appraised value and asking price in the San Diego market — often by more than the cost of construction.
Day 1
Income Starts Immediately Unlike most home investments, an ADU pays off the moment your first tenant moves in — generating monthly income while building long-term equity in one of the country's strongest real estate markets.
Materials & Finishes

Durable enough for tenants.
Beautiful enough to command top rent.

ADU finishes need to balance two priorities — quality that holds up to rental turnover and aesthetics that justify premium rents. We help you make selections that hit both marks without overspending.

ADU exterior and structure

Exterior & Structure

James Hardie fiber cement siding — durable, paintable, fire-resistant
Architectural asphalt shingles matched to existing home's roofline
Vinyl and fibreglass windows — energy-efficient, low maintenance
Fibreglass exterior doors with keypad-ready hardware
Concrete or paver pathway and private entrance design
ADU kitchen and bathroom

Kitchen & Bathroom

Semi-custom cabinetry — shaker style, soft-close, durable finish
Quartz countertops — low maintenance, tenant-friendly, modern look
Stainless appliance suite — range, refrigerator, dishwasher, microwave
Tile shower with frameless glass enclosure or tub-shower combo
Floating vanity with integrated storage — maximises small bathroom feel
ADU interior finishes

Interior Finishes

Luxury Vinyl Plank (LVP) — waterproof, looks like hardwood, holds up to tenants
Drywall finished to Level 4 — smooth, professional, easy to repaint
Recessed lighting throughout with dimmer switches
Ductless mini-split HVAC — efficient, quiet, separately controlled
In-unit laundry hookup — washer/dryer combo commands higher rent
Investment Guide

What does an ADU
actually cost to build?

ADU costs in San Diego are driven by size, type (detached vs. attached vs. garage conversion), finish level, and utility connection requirements. Here's an honest breakdown of what each tier delivers.

Junior ADU (JADU)
$80,000
– $140,000
Conversion of existing space — garage, spare room, or attached structure up to 500 sq ft.
  • Garage or room conversion
  • Kitchen or kitchenette
  • Full bathroom
  • Separate entrance required
  • Shares utilities with main home
  • Fastest to permit & build
Studio / 1-Bedroom
$140,000
– $210,000
Detached or attached ADU, 400–700 sq ft. Most common entry-point for rental income.
  • New foundation and full framing
  • Full kitchen with appliances
  • Full bathroom with tile shower
  • Mini-split HVAC system
  • In-unit laundry hookup
  • Separate utility service option
Premium Custom
$325,000
& above
High-spec 2-bed/2-bath detached ADU up to 1,200 sq ft with premium finishes throughout.
  • Up to 1,200 sq ft (state maximum)
  • Premium kitchen & bathrooms
  • Hardwood or designer flooring
  • Smart home features
  • Designer tile & fixtures
  • Rooftop deck if feasible
Common Questions

ADU questions,
answered plainly

ADUs generate a lot of questions — because the rules around zoning, sizing, permitting, and renting are specific and change frequently. California's ADU laws have been updated significantly since 2020, and many homeowners are working off outdated information they've read online.

There's no substitute for a site visit. Mark personally visits every property before a quote is written, and he'll give you a straight answer on what's possible on your specific lot.

Ready for a site visit? Call 619-368-8558 · Mon–Fri 7am–6pm
Almost certainly yes. California law now allows at least one ADU and one Junior ADU on virtually every single-family residential lot in San Diego. There are no minimum lot size requirements for ADUs under 800 sq ft. The main variables are setbacks, utility capacity, and whether you want detached or attached. We confirm your eligibility at the first visit — before you spend anything on design.
A JADU (garage or room conversion) typically runs 3–5 months total including permitting. A detached ADU runs 6–10 months from first consultation to Certificate of Occupancy — with 2–4 months for design and permitting followed by 3–5 months of construction. San Diego's ADU permit review is currently running 6–10 weeks, which we account for in every project timeline we give you.
California removed the owner-occupancy requirement for ADUs in 2020 through AB 3182. As of now, you are not required to live on the property to build or rent an ADU in San Diego. However, for Junior ADUs (JADUs), owner-occupancy of either the main home or the JADU is still required. Rules can change — we stay current on California ADU law and will confirm the latest requirements at your consultation.
San Diego is one of the strongest rental markets in the country. Current market rates run approximately $1,600–$2,200/month for a well-finished studio, $2,000–$2,800/month for a 1-bedroom, and $2,600–$3,500+/month for a 2-bedroom ADU, depending on location, finishes, and whether utilities are included. We design ADUs with rental income in mind — layout, storage, laundry access, and finish level all affect what the market will bear.
California law allows detached ADUs up to 1,200 sq ft regardless of lot coverage or floor-area-ratio restrictions. Attached ADUs are typically limited to 50% of the main home's square footage. Junior ADUs are capped at 500 sq ft. The right size for your project depends on your lot, your goals, and your budget — we'll help you find the optimal footprint at the feasibility consultation.
A Junior ADU (JADU) is a conversion of existing space within or attached to your home — a garage, spare room, or partial floor — limited to 500 sq ft. It can share a bathroom with the main home but must have its own entrance and efficiency kitchen. An ADU can be detached or attached, up to 1,200 sq ft, and must be fully independent with its own kitchen, bathroom, and entrance. JADUs are faster and cheaper; full ADUs generate more income and add more value.
Client Reviews

What homeowners
say about us

Real feedback from real customers we've had the privilege of working with.

Kitchen
"

Soandy and Mark Lovering are amazing to work with. They are our GO TO for Remodels. They can handle any project big or small. From Bathroom to Kitchen remodels they are the best.

RT
Roy True
Kitchen Remodeling
Verified
Basement
"

Project manager Fernando did a great job assessing my project. My project was complicated and some companies refused to do the work, but Fernando and his team were able to fix structural issues I had on my upstairs floorboards and they were able to fix crooked joists inside my floors. Lead worker Angel also finished off the job by doing a nice tile job on my floors. The price was fair and they finished the job on time.

TK
Todd K
Basement Finishing
Verified
Home
"

Mark provided us with the service we expect from a contractor. We had him lead all of the hard parts of our remodel. There were no surprises or changes to his bid that weren't caused by us. For the most part, his subs were quick and responsive, and listened to direction well. When of one of his subs did not perform to our expectations, he made sure that we were satisfied by first trying to get the sub to fix things, then getting an alternate sub to complete the job to our satisfaction. We hope he is available for our next project after we save some $ for it!

KB
Kevin Burgess
Home Additions
Verified

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