From free consultation through final walkthrough. One team, one contract, one point of contact. Licensed General Contractor #1105249. Serving Los Angeles for over a decade.
Get a free, no-obligation estimate from NP Line Design (CSLB #1105249). Licensed, bonded & insured.
What is the design-build process for home renovation?
The design-build process combines design and construction under one contract and one team. NP Line Design's 6-step process: (1) Free consultation and site assessment, (2) Design and 3D renderings, (3) Detailed proposal with pricing, timeline, and financing, (4) Permitting through LADBS, (5) Construction with weekly updates and daily cleanup, (6) Final walkthrough and 2-year warranty.
On-site visit to assess your space, discuss goals, review budget range, and evaluate feasibility. We photograph existing conditions, measure the space, and identify potential challenges. No obligation, no pressure. 60–90 minutes.
Our in-house design team creates floor plans, 3D renderings, and material selections. You see your project before construction begins. Revisions included until you approve. Typical: 2–4 weeks.
Line-item pricing, construction timeline, payment schedule, and financing options. Fixed-price contract — no hidden fees, no change order surprises. Typical: 1–2 weeks after design approval.
We handle all LADBS permit applications, structural engineering, Title 24 energy calculations, and plan check corrections. HPOZ review if applicable. Typical: 4–12 weeks depending on project scope and city backlog.
Your dedicated project manager coordinates all trades, materials, and inspections. Weekly progress updates with photos. Daily cleanup. Strict quality checkpoints at each phase. We protect your home and respect your schedule.
Detailed walkthrough with punch list. Every item addressed before sign-off. 2-year workmanship warranty (exceeds CA 1-year minimum). Manufacturer warranties on all products. Post-project support for any questions.
What is the difference between design-build and traditional construction?
Design-build uses one firm for both design and construction under a single contract. Traditional construction separates the architect from the general contractor, requiring the homeowner to manage two contracts, two timelines, and resolve disputes between parties. Design-build is 12–33% faster and reduces change orders by up to 50% according to the Design-Build Institute of America.
| Factor | Design-Build (NP Line Design) | Traditional (Architect + GC) |
|---|---|---|
| Contracts | 1 contract | 2+ contracts |
| Point of Contact | 1 project manager | Architect + GC + you coordinate |
| Timeline | 12–33% faster (DBIA data) | Sequential: design then bid then build |
| Cost Control | Fixed price at proposal stage | Unknown until GC bids on architect plans |
| Change Orders | 50% fewer (design + build aligned) | Common when plans meet construction reality |
| Liability | Single-source accountability | Architect and GC blame each other |
| Design Revisions | Included until approval | Billed hourly by architect |
| Value Engineering | Built into design phase | Often discovered during bidding |
| Project Type | Design | Permitting | Construction | Total |
|---|---|---|---|---|
| Bathroom Remodel | 1–2 weeks | 2–4 weeks | 3–6 weeks | 6–12 weeks |
| Kitchen Remodel | 2–3 weeks | 3–6 weeks | 6–12 weeks | 11–21 weeks |
| ADU (Detached) | 3–4 weeks | 8–16 weeks | 16–24 weeks | 27–44 weeks |
| Full Home Renovation | 3–6 weeks | 6–12 weeks | 12–24 weeks | 21–42 weeks |
| Custom Home (Ground-Up) | 6–12 weeks | 12–24 weeks | 24–52 weeks | 42–88 weeks |
| Room Addition | 2–4 weeks | 6–12 weeks | 8–16 weeks | 16–32 weeks |
| Exterior Painting | 1 week | N/A (unless HPOZ) | 1–2 weeks | 2–3 weeks |
| Garage Conversion | 2–3 weeks | 6–12 weeks | 8–12 weeks | 16–27 weeks |
Timelines are estimates based on typical LADBS processing times and project complexity. Actual timelines vary by scope, site conditions, and city backlog. HPOZ properties may add 4–8 weeks for Certificate of Appropriateness review.
Your first meeting with Netanel Presman, our project lead. We visit your property, discuss your vision, and evaluate the existing conditions.
Our design team translates your vision into detailed plans you can visualize before any construction begins.
A transparent, line-item proposal so you know exactly what you are paying for.
We handle the entire LADBS process so you do not have to visit City Hall or navigate bureaucracy.
Your dedicated project manager is on-site daily, coordinating every trade and inspection.
We do not consider a project complete until you are 100% satisfied.
Your vision, our expertise
Design-Build Portfolio
Design-build combines design and construction under one contract and one team. Instead of hiring an architect separately and then bidding out to contractors, you work with one firm from concept to completion. This reduces timelines by 12–33% and change orders by up to 50%.
It depends on scope. A bathroom remodel takes 6–12 weeks total. A kitchen remodel 11–21 weeks. An ADU 27–44 weeks. A full home renovation 21–42 weeks. These include design, permitting, and construction phases. We provide a detailed timeline in our proposal.
Yes. We handle all LADBS permit applications, structural engineering, Title 24 energy calculations, plan check corrections, and inspections. For HPOZ properties, we also manage the Certificate of Appropriateness process. You never need to visit City Hall.
Our CSLB license #1105249 is a B-license (General Building Contractor). You can verify it at cslb.ca.gov. It is active and clean with no complaints, no disciplinary actions, and current bond and insurance.
A 60–90 minute on-site visit where we photograph and measure your space, discuss your goals and budget, evaluate feasibility, and identify potential challenges. You receive a preliminary budget range within 48 hours. No obligation, no sales pressure.
Yes. We create photorealistic 3D renderings of your project so you can see the finished result before construction begins. Renderings are included in our design phase and we offer unlimited revisions until you approve.
Payments are tied to completed milestones, not calendar dates. You pay as work is verified and completed. California law limits contractor deposits to $1,000 or 10% of the contract price, whichever is less. We follow this exactly.
We provide a 2-year workmanship warranty on all projects, which exceeds the California legal minimum of 1 year. This covers all labor and installation. Manufacturer warranties on products (appliances, windows, fixtures) are separate and typically 5–25 years.
Tell us about your project. A project specialist will contact you within 24 hours to schedule your free on-site consultation.
“Building permits create an inspection record that protects your investment. Unpermitted work is a disclosed defect that reduces the property's appraised value and can create lender issues at refinance or sale. Buyers' agents are now routinely pulling permit histories before making offers. Do everything permitted. The permit cost is 1.5–3% of project cost — it's the cheapest insurance you can buy.”
Get lien releases from every subcontractor and supplier before making each progress payment. California's mechanics lien law allows unpaid parties to lien your property even if you've paid the GC in full. Conditional lien releases at payment, and unconditional releases after payment clears, are the correct documentation sequence. Make this a contract requirement.
NP Line Design (CSLB #1105249) specializes in Our Process across Greater Los Angeles. Founded by Netanel Presman, we bring 15+ years of LA-specific construction experience to every project. Verify any contractor at cslb.ca.gov before signing a contract.
Permit requirements depend on the specific scope of work. Most structural, electrical, plumbing, and mechanical work in Los Angeles requires LADBS permits regardless of project size. Your contractor should verify permit requirements for your specific project and pull all required permits before work begins.
