Principia Design

Bryanston
•
Architects, Digital marketing and SEO services, Doors, Web design
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10+
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5.0

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About: Principia Design is an architectural and interior design company based in Randburg, Johannesburg. We specialize in creating beautiful, functional spaces that reflect our client's unique style and personality. Whether you're looking to renovate your home or office, or build a new space from scratch, we can help turn your vision into reality. We offer a full range of services, from initial consultation and feasibility studies to construction administration and project management. We pride ourselves on our creative problem solving skills and our ability to work within any budget to create the best possible outcome for our clients.

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4.5

Cost guides

Interior designer

R3500 – R6000/room
Interior design plan per room

House planning

R900 – R1900/hour
Architect fee — per hour

3-bedroom house plan

R130,000 – R210,000
3-bedroom house plan

Draughtsperson

R600 – R1100/hour
Draughtsperson - per hour fee

Featured articles

Recent requests

Interior design for a 24-room guest house development

  • Property type: Commercial
  • City or suburb where you need the service: lesotho
  • Approx. size (sqm): 800
  • Estimated project start: 1–3 months
  • Price estimate: R240,000

A guest house development entailing 24 rooms of sizes 5.53m x 3.5m, small private bar, conference hall, kitchen, dining room and reception area.

Interior design for a 123 sqm apartment

  • Property type: Apartment/Flat
  • City or suburb where you need the service: Durban
  • Approx. size (sqm): 123
  • Estimated project start: Within a month
  • Price estimate: R61,500

I have a 3 bedroom apartment, open lounge and dining area, balcony.

Interior design for a 1200 sqm apartment with 7 bedrooms

  • Property type: Apartment/Flat
  • City or suburb where you need the service: Pretoria
  • Approx. size (sqm): 1200
  • Estimated project start: 1–3 months
  • Price estimate: R150,000

Would like interior design in the Whole house. 7 bedrooms ,4 bathrooms, kitchen and lounge. Outside I need changes at swimming pool. Want to add a braai area and it must be under a roof.

Interior design for a 36 sqm bedroom

  • Property type: House/Townhouse
  • City or suburb where you need the service: Midrand
  • Approx. size (sqm): 36
  • Estimated project start: Within a month
  • Price estimate: R12,000

Hi I am looking to design my daughters bedroom for her birthday 23rd September. Thanks

Interior design for a 130 sqm house with furniture procurement

  • Property type: House/Townhouse
  • City or suburb where you need the service: Port Elizabeth
  • Approx. size (sqm): 130
  • Estimated project start: Within a month
  • Price estimate: R65,000

Looking for interior designer who can also purchase necessary furniture, modern look, 3 bedroom home as well as patio set for swimming pool area.

Interior design for a 250 sqm house renovation

  • Property type: House/Townhouse
  • City or suburb where you need the service: Northwest
  • Approx. size (sqm): 250
  • Estimated project start: Within a month
  • Price estimate: R175,000

House is already built, need painting, tiling, new kitchen installed, fillings.

Interior design for a 500 sqm house

  • Property type: House/Townhouse
  • City or suburb where you need the service: Johannesburg
  • Approx. size (sqm): 500
  • Estimated project start: 1–3 months
  • Price estimate: R150,000

Modern but warm design, homely, looking for something awesome

Interior design for a 114 sqm house with lounge and balcony updates

  • Property type: House/Townhouse
  • City or suburb where you need the service: Bryanston
  • Approx. size (sqm): 114
  • Estimated project start: 1–3 months
  • Price estimate: R28,500

Needing wall paper in the lounge area, scatter cushions for existing leather suite. Ottomans required for lounge area. Balcony space to be done completely

Interior design for a 50 sqm bedroom

  • Property type: Apartment/Flat
  • City or suburb where you need the service: Bloemfontein
  • Approx. size (sqm): 50
  • Estimated project start: Within a month
  • Price estimate: R25,000

To redesign my bedroom. Elegant and Beautiful

Interior design for a 40 sqm kitchen remodel

  • Property type: House/Townhouse
  • City or suburb where you need the service: Sherwood
  • Approx. size (sqm): 40
  • Estimated project start: Within a month
  • Price estimate: R45,000

Remodelling of the kitchen