• Address:
    US: 8880 Rio San Diego Drive 8th Floor,
    San Diego, CA 92108
    UK: Office 32, 19-21 Crawford Street, London, W1H 1PJ, UK

  • Call Us:
    US 1: +1 (845) 823-1903
    US 2: +1 (619) 736-3422
    UK: +44 203 0956 409

Who we are

About Us

We are a US based growing startup. We are an architectural design, structural engineering company. Our professional engineers and architects have years of experience in servicing many great clients. materializing our client's ideas and adding value to their dreams is our motto.

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Meet Out Expert

Our Team

Our team of expert and professional engineers and architects work hard to meet your expectations. Their out-of-the-box ideas, creativity, and innovative approach are sure to impress you. With many years of meeting our client’s expectations and surprising them with our innovative approach, we have successfully set ourselves apart and set a milestone.

    Innovation & Adoption

    Process of Design

    Architectural Layouts

    Structural Layouts

    Structural layouts including calculation, specification and details are provided in the second stage.


    Final stage includes MEP layouts based on local standards and practices.

    What We Do For You


    Architectural Design

    In architectural design services, We design new buildings, additions, and renovations, and provide green solutions for all range of clients.

    Building Regulation

    We provide a comprehensive package of calculation, drawings, and specifications according to UK Building Control.

    Exterior Design

    we provide creative professional exterior design enhancement, additions, accents, and replacements.

    Interior Design

    The interior design services we provide are tailored to each client’s individual needs and business profile across the California (USA) ...

    Structural Engineering

    We are now recognized for Innovative and Optimal Solutions to Structural Engineering Problems.

    3D Visualization

    Our 3D visualization services include: 3D Building Animation, 360 panorama, 3D interior visualization, 3D exterior Visualization

    Our Works


    Timber frame home in California in US

    Timber frame home in Grant, California

    Structural Engineering

    structural engineering services for one story residential building in ST. Helena, California.

    One story residential building in St. Helena California

    Structural Engineering

    Double deck exhibit in London

    Structural design of a double deck in Exhibition

    Structural Engineering

    villa design - Mallavi

    Villas Architectural Design In Malawi



    What clients said

    Mos is an exceptional architect of S3DA Design. I have been developing for the last 9 years, have had a ...

    Maria Rutenburg - Testimonial

    Maria Rutenburg

    We can’t thank S3DA-Design and its structural engineer Kale highly enough for coming to our rescue when we were in ...

    Testimonial-s3da design - David Waller

    David Waller

    S3DA-Design’s engineer has recently worked for us in a substantial house renovation project which comprised a loft conversion and a ...



    I am very pleased to write this letter of recommendation for S3DA-Design’s structural engineers. During the period of H1, 17, ...

    peter knowles

    Peter Knowles

    Ahmad Owli and S3DA-Design have helped make drawings for several building permits. The drawings have been top-notch, changes were turned ...

    s3da-design company-Aarom Moore

    Aarom moore

    S3DA-Design’s structural engineers  provided a good efficient service and understood our requirements to undertake the working drawing package on behalf ...

    Testimonial | Barry

    Barry S

    S3DA Design’s structural engineer “Kale” had the needed technical experience, took the initiative in contacting me about the job and ...

    Testimonial | Dave-S | structural & architectural services | s3da-design

    Dave S

    I was granted planning permission to construct a parking bay at the front of my property. S3DA-Design structural engineer  draw ...

    Testimonial | Shaun Holmes | structural & architectural services | s3da-design

    Shaun Holmes