---
title: "D + O INC. — Building Designers and Drafters | Houzz"
canonical_html_url: https://www.houzz.com/professionals/building-designers-and-drafters/d-o-inc-pfvwus-pf~1887631011
markdown_url: https://www.houzz.com/md/professionals/pf~1887631011.md
entity_type: LocalBusiness
business_name: "D + O INC."
category: ["Building Designers and Drafters"]
image: https://st.hzcdn.com/fimgs/f5e340130c9a4713_4611-w400-h400-b0-p0--.jpg
address: "1201 HAMLIN STREET NE, WASHINGTON, D.C. 20017, United States"
latitude: 38.9367
longitude: -76.994
phone: "(202) 276-1999"
website: https://www.designsbyolivia.co
rating: 5
review_count: 3
best_of_houzz_awards: 2
followers: 15
last_updated: 2026-09-23
---

# D + O INC.

> Washington DC's Turnkey's Architecture Designer

Original Houzz profile: [D + O INC.](https://www.houzz.com/professionals/building-designers-and-drafters/d-o-inc-pfvwus-pf~1887631011)

## Professional summary

- **Primary category:** Building Designers and Drafters
- **Location:** WASHINGTON, DC
- **Serves:** Washington, DC (Washington)
- **Houzz rating:** 5.0 out of 5 (3 reviews)
- **Best of Houzz:** 2 awards (2020–2021), for Service.

## About

### Houzz Badges

- Houzz Pro Software User
- Star Houzzer
- 250 Ideabook Saves
- Budget friendly
- Woman owned
- High-end
- Verified Hires

### Business highlights

- 1 Verified Hire

With over a decade in experience, design and permitting. D+O INC. - Designs by Olivia has a unique and professional perspective on construction projects in the DMV area. We offer turnkey services on everything from BZA cases, interior renovations to new construction of both residential and commercial.

### Services Provided

- Architectural Design
- Architectural Drawings
- Barn Design & Construction
- Basement Remodeling
- Bathroom Design
- Building Design
- Condiminium Design and Construction
- Custom Home
- Deck Design
- Dock Design & Construction
- Drafting
- Floor Plans
- Garage Design
- Guesthouse Design & Construction
- Home Extensions
- Home Gym Design & Construction
- House Plans
- Kitchen Design
- Laundry Room Design
- New Home Construction
- Outdoor Kitchen Design
- Permitting
- Project Management
- Staircase Design
- Universal Design

### Areas Served

- Washington
- DC (Washington)

## Business Details

| Field | Value |
| --- | --- |
| Business Name | D + O INC. |
| Address | 1201 HAMLIN STREET NE, WASHINGTON, D.C. 20017, United States |
| Phone | (202) 276-1999 |
| Website | https://www.designsbyolivia.co |
| Followers on Houzz | 15 |

## Contact

- **Houzz profile:** [D + O INC.](https://www.houzz.com/professionals/building-designers-and-drafters/d-o-inc-pfvwus-pf~1887631011)
- **Website:** https://www.designsbyolivia.co
- **Phone:** (202) 276-1999

## Credentials

- **Best of Houzz:** 2 awards (2020–2021), for Service.

## Reviews

**Overall rating: 5.0 out of 5 — 3 reviews**

*Aspect averages:*
- Work Quality: 5.0
- Communication: 5.0
- Value: 5.0

### All 3 reviews

**★★★★★ — Solid Development Works LLC, Nov. 2020**

> worked with Olivia in several projects throughout the last 4 years. she is always our go to person when we have a question or a problem. she is the best

**★★★★★ — TAIWO DEMUREN, June 2019**

> I am a Property Developer in Washington, DC. I have done business with D+O INC. for over a decade. They have designed many of our projects. Their staff is reliable, consistent and sure to get the job done

**★★★★★ — HU-550890172, May 2019**

> I am an investor in PG County, MD and I encountered an issue with one of my property which needed a permit. I didnt know how to resolve the issue. My lawyer recommended me to call Olivia, I contacted her and she was extremely busy, and told me it will take 3 weeks to resolve my issue.
> She took her time, worked around the clock and made it happen. After 10 days, less than 3 weeks, WOW, Olivia texted me that she managed to resolve the issue.tm
> Olivia, you are the best. !!! Thank you very much

## Selected projects

- [Interior Work](https://www.houzz.com/hznb/projects/interior-work-pj-vj~5706691)
  - Location: Washington, DC
  - Photos: 25
- [5116 A Street SE Full Project](https://www.houzz.com/hznb/projects/5116-a-street-se-full-project-pj-vj~5706787)
  - Location: Washington, DC
  - Photos: 12
- [112 4th Street NW Full Project](https://www.houzz.com/hznb/projects/112-4th-street-nw-full-project-pj-vj~5706765)
  - Location: Washington, DC
  - Photos: 28
- [Bedroom Design](https://www.houzz.com/hznb/projects/bedroom-design-pj-vj~5652685)
  - Location: Not specified
  - Photos: 14
- [443 Ridge Street NW Full Project](https://www.houzz.com/hznb/projects/443-ridge-street-nw-full-project-pj-vj~5706750)
  - Location: Washington, DC
  - Photos: 29
- [My Work](https://www.houzz.com/hznb/projects/my-work-pj-vj~5652641)
  - Location: Not specified
  - Photos: 3
- [Staircase Design](https://www.houzz.com/hznb/projects/staircase-design-pj-vj~5652684)
  - Location: Not specified
  - Photos: 6
- [Bathrooms](https://www.houzz.com/hznb/projects/bathrooms-pj-vj~5652688)
  - Location: Not specified
  - Photos: 11
- [Kitchens](https://www.houzz.com/hznb/projects/kitchens-pj-vj~5652687)
  - Location: Not specified
  - Photos: 7
- [Exteriors](https://www.houzz.com/hznb/projects/exteriors-pj-vj~5652689)
  - Location: Not specified
  - Photos: 5

[See all 10 projects](https://www.houzz.com/professionals/building-designers-and-drafters/d-o-inc-pfvwus-pf~1887631011)

## Ideabooks

- [Wish List](https://www.houzz.com/ideabooks/82779374/list/wish-list) — 4 ideas
- [reddesigner's Ideas](https://www.houzz.com/ideabooks/5100739/list/reddesigner-s-ideas) — 230 ideas

[See all 2 ideabooks](https://www.houzz.com/ideabooks/users/reddesigner)

---

*Source: Houzz professional profile. Reflects the profile as of 2026-09-23.*