Front exterior of a Proactive Edge new-construction project on Curlew St in San Diego
Pictured: Proactive Edge new construction, Curlew St, San Diego.
Home › ADU Builder · La Mesa
La Mesa · Best of Houzz 2016–2025

ADU Builder in La Mesa

Permitted ADUs in La Mesa, with a free 3D rendering before we start.

Planning a ADU in La Mesa? La Mesa has older homes near the Village and on Mount Helix’s slopes, plus many mid-century neighborhoods. Proactive Edge Developments is a CSLB-licensed San Diego County general contractor. We build ADUs end to end, handle the City of La Mesa permit process, and include a free 3D rendering so you see the result before we start. License CSLB #768545.

Permits for a ADU in La Mesa

La Mesa publishes an ADU and JADU Development Matrix and preapproved ADU plans. Permits are submitted through the city’s online portal. Source: City of La Mesa, La Mesa ADU & JADU Development Matrix.

State timeline: when there is already a home on the lot, California law (Gov. Code §66317) requires the city or county to approve or deny a complete ADU application within 60 days.

We prepare the plan set, submit it, answer plan-check corrections, and schedule every inspection through final sign-off.

Private rooftop deck, 3680 Curlew St, San Diego
Private rooftop deck. 3680 Curlew St, San Diego (garage converted into a separate unit).

What your La Mesa ADU includes

  • Detached & attached ADUs. Standalone backyard units or additions attached to your existing home, designed to maximize rentable square footage on your lot.
  • Permit & plan coordination. We manage the entire San Diego ADU permitting process — code compliance, plan checks, and approvals — so you don't have to.
  • Built for rental income. Every ADU is designed around return: livable layouts, durable finishes, and a footprint that appraises and rents.
  • Free 3D rendering. See your finished ADU before we build it, with our in-house design software — included free for every new client.

More about adu builder in San Diego →

Featured project: the Curlew St lot split

At 3680–3682 Curlew St in San Diego, we added a second story to the main house and converted the garage into a separate unit. The owner now has two rentable addresses on one lot. It's the project we point La Mesa homeowners to first, because it shows our permitting, structural, and finish work in one place.

See the Curlew St photos →

See it before you build

Get your project rendered free.

Every new client gets one free 3D rendering, made with our in-house design software — so you see the finished result before a single nail goes in.

La Mesa questions

ADU Builder in La Mesa, answered.

Who issues ADU permits in La Mesa?

La Mesa projects are permitted by the City of La Mesa (Community Development, Building). La Mesa publishes an ADU and JADU Development Matrix and preapproved ADU plans. Permits are submitted through the city’s online portal.

How long does ADU approval take in La Mesa?

Under California law (Gov. Code §66317), when there is already a home on the lot, the City of La Mesa has to approve or deny a complete ADU application within 60 days. Plan corrections and resubmittals add time, so we give you a written schedule at your estimate.

Have you built in La Mesa?

We work across San Diego County. Our featured project is the Curlew St lot split in the City of San Diego; ask us for the closest completed work to your address during your consult.

What does the free 3D rendering include?

One rendering of your La Mesa ADU, made with our in-house design software, so you see the result before construction starts. No cost and no obligation.

Get started

Get your free rendering.

Tell us about your project and we'll create one free 3D rendering with our in-house software, plus a free on-site estimate. No cost, no obligation.

Call
(866) 685-EDGE(866) 685-3343
Service area
San Diego County
License
CSLB #768545
Free 3D rendering + estimate

We'll only use your details to discuss your project. No spam, ever.