Carrier and Postmus Architects

What Carrier and Postmus Architects does

Carrier and Postmus Architects (trading as CaPA) is a privately held, Perth-based boutique studio offering integrated architectural and landscape design services throughout Western Australia. The firm is co-directed by Justin Carrier and Steven Postmus and operates from a single studio at 5 Northwood Street, West Leederville, with a team of approximately 11 staff spanning directors, a senior associate, associates, architects, graduates, and operations roles. CaPA's underlying capability is a design methodology that explicitly intertwines architecture and landscape to produce holistic environments, characterised by robust, refined, sculptural architecture and naturalistic, layered, endemic landscapes, with a strong emphasis on climate-responsive, low-maintenance, and sustainable outcomes (including passive cooling and coastal-adaptive detailing).

The studio serves four primary verticals — residential clients, multi-residential developers, civic and commercial entities, and heritage projects — and is supported by an award-winning portfolio (HIA, UDIA, Australian Institute of Architecture WA, and Apartment Advocacy Awards between 2019 and 2023) and recurring press coverage in The Architect, Design Anthology, Habitus, Custom Homes, Fabric Quarterly, and The Local Project. Go-to-market is direct, sales-led, and relationship-driven through the Perth studio, with marketing executed primarily via the capa.studio portfolio website, Instagram, LinkedIn, a newsletter, and earned media; no paid channels, resellers, or third-party marketplaces are used. Revenue is generated through project-based professional services fees for design, documentation, and contract administration, with pricing negotiated on a project-by-project basis and not publicly disclosed. The firm is independently owned with no external investors, no parent company, no funding rounds, no subsidiaries, and no M&A activity in the available record.

Name

Carrier and Postmus Architects

Legal name

Carrier and Postmus Architects

Website

https://carrierandpostmus.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

1–10 employees

Short description

CaPA is a privately held Perth-based boutique studio co-directed by Justin Carrier and Steven Postmus, offering integrated architectural and landscape design services across residential, multi-residential, civic, commercial, and heritage projects throughout Western Australia.

Ownership category

akta.pro rank

Product category

Architectural and Landscape Design Services

NAICS

Architectural Services (54131)

akta.pro primary industry

Landscape Architecture & Site Design (BPAHAKAC)

Keywords

• Architectural design services
• Landscape architecture services
• Residential architecture design
• Multi-residential design services
• Civic commercial architecture

Headquarters

HQ city

Perth

HQ country

Australia

HQ region

Oceania

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Revenue model

1. Architectural Design Services: Project-based fees for architectural design services across residential, multi-residential, civic and commercial, and heritage projects. Includes design, documentation, and contract administration.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Carrier and Postmus Architects provides integrated architecture and landscape design services across residential, multi-residential, civic and commercial, and heritage typologies in Western Australia. The studio designs private residences, multi-unit developments, civic and commercial buildings, and heritage projects, while concurrently delivering landscape design for residential, multi-residential, civic and commercial sites. Engagements are project-based and delivered by a small in-house team operating from a single Perth studio.

Product overview

CaPA (Carrier and Postmus Architects) is a Perth-based architecture and landscape studio offering integrated design services throughout Western Australia. The firm operates as a single unified service offering, providing architectural design across residential, multi-residential, civic and commercial, and heritage categories, as well as landscape design services spanning residential, multi-residential, civic and commercial, and under-construction projects. The studio intertwines architecture and landscape to create holistic environments at multiple scales, with a portfolio that includes completed projects such as RZB Residence (2019) and D_Residence (2020), as well as ongoing works in both architecture and landscape categories.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Architecture
• Multi-Residential Architecture
• Civic and Commercial Architecture
• Heritage Architecture
• Residential Landscape Design
• Multi-Residential Landscape Design
• Civic and Commercial Landscape Design

Quantifiable outcome

• Multiple award recognitions from Australian Institute of Architecture (WA), UDIA Awards, HIA Awards, and Apartment Advocacy Awards across residential and multi-residential categories
• +1 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered minor.

• Weststyle Design & DevelopmentminorOthersBuilding contractor for RZB Residence project. Provided construction services for the sustainable forever home designed for a retired couple.
• ACCEminorOthersStructural engineer consultant for RZB Residence project, providing structural design services.
• CADDS GroupminorOthersEnergy consultant and building compliance consultant for RZB Residence project, providing energy efficiency and regulatory compliance services.
• Alita ConstructionsminorOthersBuilding contractor for D_Residence project in Scarborough, WA. Constructed the sculpted brick and reeded concrete residence.
• Douglas Mark BlackminorOthersPhotographer for RZB Residence project, providing professional photography services for project documentation and marketing.

Scale indicators1 record

Recent moves5 records

Expansion highlights4 records

Direct peers

• Austin Maynard Architects: Boutique Melbourne studio focused on sustainable, design-residential and multi-residential projects. Closely comparable in size, sustainability orientation, and architectural language to CaPA.
• ASPECT Studios: Australian landscape architecture and urban design practice. Comparable as a peer on the landscape-design component of CaPA's integrated offering, though not an architecture firm itself.
• TCL (Taylor Cullity Stotts): Leading Australian landscape architecture firm delivering civic, residential and multi-residential projects. Comparable on the landscape-design pillar of CaPA's integrated service.
• ARM Architecture: Australian architecture studio with multi-residential and civic expertise. Comparable in design-led positioning and project typology mix to CaPA, though based in Melbourne.
• Kennedy Nolan: Boutique Australian architecture practice known for design-led residential and multi-residential work. Comparable in scale, ethos and project mix to CaPA, though based in Victoria.
• Wolveridge Architects: Boutique Australian architecture firm with a strong residential and multi-residential portfolio and signature sculptural detailing. Comparable in scale and design philosophy to CaPA.
• Clare Cousins Architects: Boutique Australian architecture studio producing design-led residential and small-scale multi-residential work. Comparable as a similarly sized, brand-driven boutique practice.

Broad incumbents

• Cox Architecture: Australia-wide architecture practice with offices including Perth, delivering residential, multi-residential, civic and heritage projects. Comparable across sector mix, though typically at larger project scales than CaPA.
• Woods Bagot: Global Australian-headquartered architecture and design practice with studio presence in Perth. Overlaps with CaPA on residential, multi-residential, and civic work, though at much greater scale and with a broader service mix including interiors.
• HASSELL: Large Australian architecture and design firm with a Perth studio, delivering architecture, landscape, interiors and urban design across multiple sectors. Directly comparable as a WA-present integrated design studio, but at a substantially larger scale and broader portfolio.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/capa-architecture
• Instagraminstagram.com/capa_studio
• Facebookfacebook.com/CAPA.architects

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Carrier and Postmus Architects