Best Upgrades That Raise Rent in San Diego

This guide is for owners of San Diego rental homes, condos and small apartment buildings who are deciding what to spend on between tenants. It covers nine upgrades and baseline items, and for each one it says what the evidence actually shows: renter surveys, Zillow's rental data, or the California statute that makes an item mandatory.

What it does not do is promise a dollar figure. We found no reliable, sourced San Diego rent premiums for specific upgrades, so none appear below. An upgrade can help a unit rent faster, attract more applicants or justify a higher asking rent at the next lease-up. How much rent it supports depends on the property and the market that month.

First, what the rent cap allows

For most San Diego rentals, the question is not only what an upgrade is worth but when you can charge for it.

• The cap. California's Tenant Protection Act (AB 1482, Civil Code section 1947.12) limits increases on covered units to 5% plus the local CPI, or 10%, whichever is lower, over any 12 months. For San Diego County that works out to 8.2% for increases effective 1 August 2026 through 31 July 2027 (it was 8.8% for the year before). The increase is measured from the lowest rent charged in the prior 12 months, and no more than two increases are allowed in 12 months.
• Upgrades are not an exception. A new kitchen or a new air conditioner does not let you raise a covered tenant's rent above the cap. The cap applies the same way with or without the upgrade.
• Where upgrades matter most. The rent can be set at market when a unit turns over, and for units the law exempts. The exemptions include buildings with a certificate of occupancy issued within the last 15 years, single-family homes and condos owned by individuals when the exact statutory exemption notice was given, and an owner-occupied duplex.
• The sunset. Section 1947.12 is repealed on 1 January 2030 unless the Legislature extends it.

One more point: don't plan a renovation around ending a tenancy. Under SB 567, a notice to vacate for a substantial remodel must describe the work and attach the permits, and City of San Diego addresses have their own just-cause and relocation rules from the first day of a tenancy. Our list of common landlord mistakes covers those rules.

At a glance

1. In-unit washer and dryer

In the NMHC and Grace Hill 2024 Renter Preferences Survey, which drew 172,703 responses, 93% of renters said they wanted an in-unit washer and dryer. The survey does not attach a dollar figure to it, and a widely repeated monthly premium for in-unit laundry could not be traced to a primary source, so we don't quote one. Before you buy, check that the unit has the water, drain, venting and electrical capacity for the machines, and in a condo, what the HOA allows.

2. Air conditioning

The same 2024 survey found that 93% of renters wanted air conditioning, the same share as in-unit laundry. If comparable listings near your property have it and yours does not, that gap shows up when renters compare units at a similar asking rent. The right system depends on the building, whether it has ducts, the capacity of the electrical panel and, in a condo, the HOA rules on exterior equipment. Get quotes from licensed contractors and ask about permits.

3. A pet-ready unit and a clear pet policy

Zillow reported on 2 July 2025 that 58% of renters have pets. In San Diego, 59% of listings allowed pets, and pet-friendly units rented 4 days faster than those that did not. The upgrade here is partly a policy decision and partly finishes: durable, water-resistant flooring and a secure yard or patio make a pet policy easier to live with.

California does not require landlords to accept pets, and there is no state cap on pet rent. A pet deposit does count toward the one-month cap on total security in Civil Code section 1950.5. Assistance animals are not pets and cannot carry pet fees. For more on filling a unit faster, see our guide to reducing vacancy in San Diego.

4. A working stove and refrigerator (now required)

These used to be selling points. They are now part of habitability. AB 628 (Stats. 2025, ch. 342) added both to Civil Code section 1941.1 for leases entered into, amended or extended on or after 1 January 2026. The unit must have a stove in good working order that can generate heat for cooking, and a refrigerator in good working order that can store food. A recalled appliance counts as not meeting the standard, and the landlord must repair or replace it within 30 days of notice of the recall.

• The stove cannot be opted out.
• The refrigerator can be opted out only at the tenant's request. The lease must contain the statute's exact checkbox statement that the tenant asked to bring their own refrigerator. The tenant can end that arrangement with 30 days' written notice, and the landlord may not make the tenancy conditional on the tenant supplying one.

5. Working smoke and carbon monoxide alarms

Health and Safety Code section 13113.7 requires State Fire Marshal-approved smoke alarms in every dwelling, and the owner must make sure they work at move-in. Section 17926 requires carbon monoxide alarms in dwelling units with a fossil-fuel heater or appliance, a fireplace or an attached garage. These are not rent-raising upgrades, but a unit that fails them is not ready to list. Check and replace them at every turnover.

6. Fixing moisture before cosmetic work

Visible mold is a substandard housing condition under Health and Safety Code section 17920.3(a)(13), so it has to be fixed whether or not you upgrade anything else. The separate written mold-disclosure duty in section 26147 is not yet in force, because it waits on state exposure standards. The practical upgrade is to find the source: a bathroom fan that vents outside, a repaired leak, or better drainage. New paint over a moisture problem only delays the repair.

7. EV charging

Under Civil Code section 1947.6, for leases executed, extended or renewed on or after 1 July 2015, a landlord must approve a tenant's written request to install a charger at the tenant's parking space. The tenant pays for installation, electricity, maintenance and removal, and may have to carry liability insurance. The rule does not apply to properties with fewer than 5 parking spaces, leases with no parking, or properties where chargers already serve at least 10% of spaces. If a charger effectively reserves a space, the landlord may charge rent for that space.

So a landlord-installed charger is a voluntary amenity. We found no sourced figure for how much rent it adds, so treat it as a way to stand out rather than a set premium.

8. An accessory dwelling unit (ADU)

An ADU adds a unit rather than raising the rent on an existing one. The City of San Diego's Information Bulletin 400 (January 2026) sets out the current rules:

• ADUs up to 1,200 square feet; junior ADUs up to 500 square feet, where the owner must generally live on site.
• A single-family lot can have one ADU, one conversion ADU and one junior ADU.
• A multifamily lot can have up to eight detached ADUs (no more than the number of existing units) plus conversions of up to 25% of the existing units.
• An ADU may not be leased for less than 31 consecutive days, so it cannot be a short-term rental.

State law bars impact fees on ADUs under 750 square feet (Government Code section 66324). The City also runs an ADU Home Density Bonus program that allows one bonus ADU for each ADU deed-restricted as affordable for 15 years. The City Council voted on 17 June 2025 to cap bonus ADUs on single-family lots, so check the current rules with the City before you design around the bonus. For where rental demand sits across the city, see our guide to San Diego neighborhoods for rental property investment.

9. A documented turnover refresh

Paint, flooring repairs, new fixtures and a deep clean are the most common turnover spending. What makes them pay off at move-out is documentation. Under AB 2801, for tenancies beginning on or after 1 July 2025, the landlord must photograph the unit immediately before or at the start of the tenancy, and must take photos again at move-out, before and after repairs. Deposit deductions are limited to restoring the move-in condition, so clear move-in photos of freshly finished work protect the value of the refresh. Our maintenance services page describes how McKee handles turnover work.

Frequently asked questions

Can I raise the rent above the cap after a major upgrade?

Not for a covered tenancy. The AB 1482 cap in Civil Code section 1947.12 has no exception for capital improvements, so the most a covered San Diego County unit can go up is 8.2% for increases effective 1 August 2026 through 31 July 2027, measured from the lowest rent in the prior 12 months. The rent can be set at market when the unit turns over or if the unit is exempt.

How much more rent does an in-unit washer and dryer bring in San Diego?

We could not find a reliable, sourced San Diego figure. The NMHC and Grace Hill 2024 survey shows 93% of renters want in-unit laundry, which suggests strong demand, but the survey does not put a dollar amount on it.

Is a refrigerator an upgrade or a requirement?

For leases entered into, amended or extended on or after 1 January 2026, it is a requirement under AB 628 (Civil Code section 1941.1), along with a working stove. The only exception is a tenant who asks to bring their own refrigerator and checks the statutory box in the lease. The stove has no opt-out.

Can I rent a new ADU as a vacation rental?

No. The City of San Diego's Information Bulletin 400 says an ADU may not be leased for less than 31 consecutive days, so it has to be a longer-term rental.

Rules change and depend on the property and the lease date. This is general information, not legal advice.

If you are weighing upgrades before your next lease-up, compare managers in our list of San Diego property management companies, or ask McKee Properties about maintenance and turnover work through our contact page.