What Baa House does

Baa House is an Australian architecture firm operating under the legal entity BAAHOUSE + BAASTUDIO PTY LTD, founded in 2012 and headquartered in Manly, Brisbane, Queensland. The firm specializes in designing small homes, granny flats, second dwellings, and family residences for residential property owners across Australia, with active projects documented from Darwin in the north to the Gold Coast Hinterland in the south. It is led by architect Claus Ejlertsen and operates three sub-brands: the core BAAHOUSE pre-designed range (50+ house models named after sheep breeds, from 26sqm studios to 325sqm family homes), BAASTUDIO Architecture for bespoke custom residential work, and BAA Interiors for interior design services.

The firm's core technology is its proprietary design methodology, centered on passive design principles tailored to Australian climate conditions — including site-specific analysis of northerly aspect, prevailing breezes, vegetation, slope, and soil conditions; raised pole construction for flood-prone and sloping sites; BAL-rated material specifications for bushfire-prone hinterland areas; and standard inclusions such as Colorbond steel roofing, louvre windows, double glazing on east/west exposures, and insulation targeting 7-star energy efficiency under Australia's National Construction Code. The firm does not prefabricate or supply kit homes — all designs are built on-site by local builders, with the firm providing consultation, design development, construction drawings, building approvals, tendering, and optional project management. Construction costs are estimated at A$4,500-A$5,500 per square metre, and the firm declines projects with construction budgets under A$500,000.

Baa House's business model is primarily professional services (full architectural design commissions), supplemented by one-time perpetual licensing of pre-designed house plans sold in Standard (building approval only) and Deluxe (full construction documentation with material specifications) tiers through the website. Go-to-market combines 2-hour on-site architect consultations in South East Queensland and Northern NSW (with free hand sketches), ZOOM consultations for remote clients, and a Sydney/Northern Beaches channel consultant (Phill Deer) representing the firm in NSW. Marketing is digital-led via SEO, Instagram, Facebook, blog content, and earned media (features on 9Life Open Homes Australia and Grand Designs Australia magazine). The customer base is fragmented across individual residential property owners seeking granny flats, multi-generational living spaces, accessible homes, and challenging-site builds, with no enterprise or institutional customers identified.

Name

Baa House

Legal name

BAAHOUSE + BAASTUDIO PTY LTD

Website

https://baahouse.com.au

Company type

Private

Founded year

2012

Operating status

Operating

Short description

Baa House is an Australian architecture firm specializing in pre-designed and custom small homes, granny flats, second dwellings, and family residences for residential property owners across Queensland, New South Wales, and Australia-wide, led by architect Claus Ejlertsen from Brisbane.

Ownership category

akta.pro rank

Product category

Residential Architectural Services

NAICS

Architectural Services (54131), Interior Design Services (541410)

SIC

General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

Custom Home Building (IMAFABAC)

akta.pro secondary industries

Multi-Family Residential Construction (Apartments, Condos, Townhomes) (IMAFABAB), Residential Design-Build & Renovation-Integrated Builders (IMAFABAE)

Keywords

• Architectural design services
• Small house design
• Granny flat design
• Residential architecture
• Sustainable home design

Headquarters

HQ city

Brisbane

HQ country

Australia

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Architectural Design Services: The primary revenue stream comes from providing comprehensive architectural design services including on-site consultation, conceptual sketch design, design development, construction drawings, building approvals, and project management. Services are provided in stages with associated fees at each stage.
2. Pre-designed House Plans: House plans are sold in Standard or Deluxe options—Standard for building approval documentation, and Deluxe for fully detailed construction sets with material specifications. Plans are customized for each client's site.
3. Project Management Services: Optional project management services including liaising with builders, coordinating consultant work, and providing design queries resolution during construction phase.
4. Tendering and Builder Coordination: The company offers to tender projects to compare and negotiate with builders, securing competitive prices for clients.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

Baa House is an Australian residential architecture firm that sells pre-designed small house plans and granny flat designs (50+ models named after sheep breeds, ranging from 26sqm studios to 325sqm family homes) and provides staged architectural services from on-site consultation and conceptual sketches through design development, construction documentation, building approvals, tendering, and optional project management. All plans are customized to the client's site, climate, and council requirements and are built on-site by local builders rather than supplied as prefabricated kits.

Product overview

Baa House (BAAHOUSE) is an Australian architectural firm specializing in pre-designed small homes, granny flats, and family house designs. The core offering is the BAAHOUSE pre-designed range of residential architecture featuring over 50+ house designs named after sheep breeds (Lincoln, Columbia, California Red, Texel, Marco Polo, etc.), ranging from 26sqm studios to 325sqm family homes. The portfolio includes three main categories: (1) BAAHOUSE small homes/granny flats under 80sqm for second dwellings; (2) Stilt/pole/split-level elevated designs for challenging sites; and (3) Family house designs 3-5 bedrooms. The ecosystem includes BAASTUDIO Architecture for custom residential work, BAA Interiors for interior design services, Pre-packaged Design Styles (Coastal, Urban, Hinterland, Modern, Mediterranean, Japandi) for material selection, and full-service Design Stages & Services from consultation through construction. All designs are architecturally designed for the Australian climate, lifestyle, and sustainability standards targeting 7-star energy efficiency ratings.

Differentiator

Problem solved

Functional benefit

Brands

• BAASTUDIO Architecture: Custom residential architecture service for bespoke home designs
• BAA Interiors

Products and services

• Pre-designed Small Homes & Granny Flats (BAAHOUSE range) Curated library of pre-designed architectural plans for small homes, studios, and granny flats under 80sqm, customized per site and sold in Standard (building approval documentation) or Deluxe (full construction documentation with material specifications) packages. Targeted at Australian homeowners and property investors seeking a second dwelling for family, rental, or Airbnb use.
• Family House Designs (Columbia, Lincoln, Montadale, Leicester, Santa Cruz, Coolalee ranges) Pre-designed 3-5 bedroom family home plans ranging from 110 to 325 sqm, including elevated designs suited to hinterland or flood-prone blocks, for families building a primary residence.
• Stilt, Pole & Split-Level House Designs (Herdwick, Montadale, Exmoor Horn, Avranchin) Pre-designed elevated house plans (stilt, pole, and split-level) tailored to sloping blocks, flood-prone areas, and hinterland sites, including Bushfire Attack Level (BAL) material specifications where required.
• Design Stages & Services (Full architectural service) End-to-end architectural service covering on-site consultation, conceptual sketch, design development, construction drawings, building approvals, builder tendering, and optional project management for individual clients building a Baa House home.
• BAASTUDIO Architecture (Custom Residential Architecture) Bespoke custom residential architecture sub-brand providing fully tailored luxury new home designs and renovations suited to the client's specific site and lifestyle, distinct from the pre-designed BAAHOUSE range.
• BAA Interiors Interior design service offered alongside the firm's architectural designs, providing residential interior design to enhance lifestyle and aesthetic appeal of Baa House projects.
• Project Management & Builder Coordination Optional post-design service that includes liaising with builders, coordinating consultant work, tendering projects to compare and negotiate builder prices, and resolving design queries during the construction phase.
• Information Starter Kit Free starter kit for prospective clients that includes a company overview, a 4-step building process guide, second dwelling restrictions guide, and project cost guide, used as a lead capture and qualification tool for the sales funnel.

Quantifiable outcome

• 7-star energy efficiency rating targeted under new National Construction Code
• +3 more outcomes

Named customers3 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eight partnerships are on record, tiered minor and core.

• ROSIES (Youth Charity)minorGTM or Marketing PartnerBAAHOUSE + BAASTUDIO Architecture is a proud sponsor of ROSIES, a youth charity organization. This sponsorship demonstrates the company's commitment to community engagement and corporate social responsibility.
• BAA VXOne Race TeamminorGTM or Marketing PartnerBAAHOUSE + BAASTUDIO Architecture sponsors the BAA VXOne Race Team sailing team, supporting the sailing community while building brand visibility.
• Rycon ConstructionscoreImplementation/ SI/ Consulting PartnerRecommended Brisbane-based builder who has collaborated on multiple BAAHOUSE projects including the BAA Backyard Studio and various residential constructions. Known as one of Brisbane's leading builders.
• GDS Consulting EngineerscoreStrategic or Co-development PartnerEngineering firm that collaborates on BAAHOUSE projects across Queensland and Northern NSW, providing structural engineering documentation as part of the design process.
• Saunders Building CompanyminorImplementation/ SI/ Consulting PartnerBuilder involved in BAAHOUSE homeshow projects, including Brisbane Homeshow installations.
• Burgess KitchensminorImplementation/ SI/ Consulting PartnerKitchen specialist involved in BAAHOUSE homeshow projects providing cabinetry and detailing for display installations.
• Williams Family HomesminorImplementation/ SI/ Consulting PartnerBuilder partner for projects in the Sunshine Coast area including the Maleny Rammed Earth House and Reesville family home project.
• Phill Deer (Construction Consult)coreChannel Partner/ Reseller/ DistributorSydney-based consultant representing BAAHOUSE in the Northern Beaches area. Coordinates projects from initial onsite consultation through to build completion, acting as the company's local point of contact for Sydney clients.

Scale indicators3 records

Recent moves4 records

Expansion highlights6 records

Broad incumbents

• Kennedy Nolan: Established Melbourne-based architecture firm with residential specialisation including small homes and sustainable design. A broader architectural incumbent in the Australian residential design market rather than a direct granny-flat competitor.
• ClarkeHopkinsClarke Architects: Large Australian multi-disciplinary architecture firm with substantial residential practice and developer relationships. Operates broadly across housing including apartments and townhouses, offering wider portfolio scope than BAAHOUSE's boutique specialisation.

Emerging players

• Archiblox: Australian architect-led modular home company designing small, sustainable homes and granny flats. Comparable customer base and product category, but delivers via factory-built modular rather than BAAHOUSE's on-site custom architecture.
• Modscape: Australian modular architecture firm specialising in small homes, secondary dwellings, and architect-designed residences. Targets similar small-home and granny flat buyers with a prefabricated delivery model.

Others

• prefabAUS: Australian industry association promoting prefab and modular construction. An ecosystem participant shaping competitive dynamics between on-site custom architecture (BAAHOUSE's model) and modular delivery methods.

Direct peers

• Green Homes Australia: Australian sustainable home builder delivering architect-designed energy-efficient residential projects. Comparable focus on sustainability, energy ratings, and custom family-home design across similar Australian geographies.
• Domain Residential Design: Australian boutique residential architecture practice delivering custom home and granny-flat design. Operates in the same small-firm, high-touch residential niche as BAAHOUSE.
• Hoot Homes: Australian residential design and build firm focusing on granny flats, secondary dwellings and small homes. Competes directly with BAAHOUSE for the same homeowner segment in the secondary-dwelling niche.
• Granny Flat Solutions: National Australian granny flat design-and-build provider offering customised secondary dwelling plans. Overlaps with BAAHOUSE's secondary dwelling / granny flat specialisation in customer profile, though delivered via integrated builder model.
• Eco Cottages Australia: Australian small-home designer specialising in sustainable, energy-efficient cottages and granny flats. Similar product positioning, customer demographic, and climate-responsive design ethos as BAAHOUSE.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/watch?v=FQvuSEjrFZ0
• Facebookfacebook.com/baahouse
• Instagraminstagram.com/baahousebaastudioarchitecture

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Baa House