---
title: "Buzzer 9 Development Inc — Home Builders | Houzz"
canonical_html_url: https://www.houzz.com/professionals/home-builders/buzzer-9-development-inc-pfvwus-pf~1261321274
markdown_url: https://www.houzz.com/md/professionals/pf~1261321274.md
entity_type: LocalBusiness
business_name: "Buzzer 9 Development Inc"
category: ["Home Builders"]
image: https://st.hzcdn.com/fimgs/dc73ff110e30666e_0255-w400-h400-b0-p0--.jpg
address: "475 Gate Five Rd, Sausalito, California 94123, United States"
latitude: 37.7999
longitude: -122.4342
phone: "(415) 816-4410"
website: http://www.buzzer9.com
rating: 0
review_count: 0
last_updated: 2026-09-06
---

# Buzzer 9 Development Inc

Original Houzz profile: [Buzzer 9 Development Inc](https://www.houzz.com/professionals/home-builders/buzzer-9-development-inc-pfvwus-pf~1261321274)

## Professional summary

- **Primary category:** Home Builders
- **Location:** Sausalito, CA
- **Serves:** San Francisco, Oakland, Berkeley, El Cerrito, Albany, Mill Valley, Larkspur, Tamalpais-Homestead Valley, Corte Madera, Tiburon, Sausalito, Belvedere, Belvedere Tiburon
- **Houzz rating:** 0.0 out of 5 (0 reviews)

## About

### Houzz Badges

- 1,000 Ideabook Saves

Buzzer 9 Development builds custom homes - partnering with clients and architects to transform clients’ vision of a dream home into reality.

The philosophy of green building and sustainable design has been intricately woven into our approach to building. From the selection of building and finish materials to the design and construction of the mechanical and energy systems, we can provide solutions that will help reduce your project’s impact on the planet, increase energy efficiency, and provide a healthy environment that stands the test of time.

### Services Provided

- New Home Construction
- Custom Homes
- Home Remodeling
- Home Additions
- Home Extensions
- Energy-Efficient Homes
- House Plans
- Guesthouse Design & Construction
- Accessory Dwelling Units (ADUs)
- Project Management
- Garage Building
- Home Restoration
- House Framing
- Floor Plans
- Foundation Construction
- Site Planning
- Structural Engineering
- Modular Home Construction
- Roof Waterproofing
- Passive Solar Heating & Cooling

### Areas Served

- San Francisco
- Oakland
- Berkeley
- El Cerrito
- Albany
- Mill Valley
- Larkspur
- Tamalpais-Homestead Valley
- Corte Madera
- Tiburon
- Sausalito
- Belvedere
- Belvedere Tiburon

### Typical Job Cost

We'd love to know more so that we can give a cost estimate.

## Business Details

| Field | Value |
| --- | --- |
| Business Name | Buzzer 9 Development Inc |
| Address | 475 Gate Five Rd, Sausalito, California 94123, United States |
| Phone | (415) 816-4410 |
| Website | http://www.buzzer9.com |
| License Number | B956740 |

**Social profiles:**
- Facebook — https://www.facebook.com/pg/Buzzer-9-109567913976636/photos/?ref=page\_internal
- LinkedIn — https://www.linkedin.com/in/peterrosenthal/
- Blog — https://buzzer9.com

## Contact

- **Houzz profile:** [Buzzer 9 Development Inc](https://www.houzz.com/professionals/home-builders/buzzer-9-development-inc-pfvwus-pf~1261321274)
- **Website:** http://www.buzzer9.com
- **Phone:** (415) 816-4410

## Selected projects

- [Longfellow House](https://www.houzz.com/hznb/projects/longfellow-house-pj-vj~6042668)
  - Location: Not specified
  - Photos: 32
- [El Cerrito Modern Home](https://www.houzz.com/hznb/projects/el-cerrito-modern-home-pj-vj~6379199)
  - Location: Not specified
  - Photos: 2
- [Tiburon House](https://www.houzz.com/hznb/projects/tiburon-house-pj-vj~6379194)
  - Location: Not specified
  - Photos: 2
- [Cragmont House](https://www.houzz.com/hznb/projects/cragmont-house-pj-vj~6042684)
  - Location: Not specified
  - Photos: 9
- [Woodward House](https://www.houzz.com/hznb/projects/woodward-house-pj-vj~6042690)
  - Location: Not specified
  - Photos: 7
- [Modern Farm House](https://www.houzz.com/hznb/projects/modern-farm-house-pj-vj~6379181)
  - Location: Not specified
  - Photos: 6
- [Healthy House](https://www.houzz.com/hznb/projects/healthy-house-pj-vj~6379147)
  - Location: Mill Valley, CA
  - Photos: 6

[See all 7 projects](https://www.houzz.com/professionals/home-builders/buzzer-9-development-inc-pfvwus-pf~1261321274)

---

*Source: Houzz professional profile. Reflects the profile as of 2026-09-06.*