Front exterior of a Proactive Edge new-construction project on Curlew St in San Diego
Pictured: Proactive Edge new construction, Curlew St, San Diego.
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Cardiff-by-the-Sea · Best of Houzz 2016–2025

ADU Builder in Cardiff-by-the-Sea

Permitted ADUs in Cardiff-by-the-Sea, with a free 3D rendering before we start.

Planning a ADU in Cardiff-by-the-Sea? Cardiff-by-the-Sea is a coastal community within the City of Encinitas, with small hillside lots and older beach homes. Proactive Edge Developments is a CSLB-licensed San Diego County general contractor. We build ADUs end to end, handle the City of Encinitas permit process, and include a free 3D rendering so you see the result before we start. License CSLB #768545.

Permits for a ADU in Cardiff-by-the-Sea

Encinitas publishes an ADU and JADU Guide and runs a Permit-Ready ADU (PRADU) program with pre-approved plans. Source: City of Encinitas, ADU and JADU Guide (PLN-118).

Coastal Zone: parts of Cardiff-by-the-Sea are inside the California Coastal Zone. Projects there can need a coastal development permit on top of the building permit, which adds review time. We check your parcel before design starts.

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 Cardiff-by-the-Sea 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 Cardiff-by-the-Sea 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.

Cardiff-by-the-Sea questions

ADU Builder in Cardiff-by-the-Sea, answered.

Who issues ADU permits in Cardiff-by-the-Sea?

Cardiff-by-the-Sea projects are permitted by the City of Encinitas (Development Services). Encinitas publishes an ADU and JADU Guide and runs a Permit-Ready ADU (PRADU) program with pre-approved plans.

Does the Coastal Zone affect a ADU in Cardiff-by-the-Sea?

It can. Parts of Cardiff-by-the-Sea fall inside the California Coastal Zone, where some projects need a coastal development permit in addition to a building permit. We check your parcel's status before design starts.

How long does ADU approval take in Cardiff-by-the-Sea?

Under California law (Gov. Code §66317), when there is already a home on the lot, the City of Encinitas 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 Cardiff-by-the-Sea?

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 Cardiff-by-the-Sea 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

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