EXOBOX

What EXOBOX does

EXOBOX is a Belgian custom builder of prefabricated modular outdoor rooms, founded in 2014 by Gauthier Van Malder (garden architect) and Diederik Van Bochaute (carpenter), headquartered in Lennik, Belgium. The company designs, manufactures, and installs steel-frame modular units — primarily tiny houses, garden offices, poolhouses, and high-end garden sheds — serving mostly private residential homeowners in Belgium with a focus on the Flemish region. Each unit is built on a steel skeleton, fully insulated with 100mm glass wool in floor/walls/ceiling, pre-wired for electricity, water, internet, and domotics, and finished on the interior and exterior before delivery. Units are placed on screw pile foundations via crane in approximately one day, and the steel-frame, no-concrete architecture is positioned as more permit-friendly than permanent structures in Flanders.

The business operates on a project-based, one-time sales model with no recurring revenue stream. Pricing ranges from approximately €15,000 for compact basic garden offices to over €100,000 for custom luxury tiny houses, with a general benchmark of €1,800–€2,200 per square metre excluding VAT; optional off-grid upgrades (solar panels, rainwater collection, heat pumps) add roughly €10,000–€20,000. Customers engage through a free in-person consultation process that progresses from initial web enquiry to 3D design, detailed quote, factory production, and crane installation, with EXOBOX acting as the single contractor handling design, permit support, foundation, and on-site finishing.

EXOBOX employs approximately five people (essentially the two co-founders), distributes exclusively through direct sales (no resellers or marketplace listings), and is bootstrapped with no disclosed external funding, partnerships, parent company, or institutional investors. Marketing relies on its multilingual website (Dutch, English, French), a portfolio of completed projects, Google-verified customer testimonials, and word-of-mouth referrals. Customer references are predominantly individual homeowners, with one notable enterprise reference (Le Vieux Chateau, a Michelin-starred restaurant using an EXOBOX as a wine tasting room).

Name

EXOBOX

Legal name

EXOBOX

Website

https://exobox.eu

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

1–10 employees

Short description

EXOBOX is a Belgian custom builder of prefabricated steel-frame modular outdoor rooms — tiny houses, garden offices, poolhouses, and garden sheds — serving primarily residential homeowners in Flanders with fully finished units installed in one day via crane.

Ownership category

akta.pro rank

Product category

Prefabricated Modular Buildings

NAICS

Prefabricated Metal Building and Component Manufacturing (332311), New Single-Family Housing Construction (except For-Sale Builders) (236115)

SIC

Prefabricated Metal Buildings & Components (3448)

akta.pro primary industry

Residential Modular & Prefabricated Home Construction (IMAFABAF)

akta.pro secondary industries

Modular/Offsite General Contracting & Installation (IMAFAAAK), Detached ADU (Backyard Cottage) Construction (HSAPAMAA), Residential Green / High-Performance Home Construction (Net-Zero, Passive House) (IMAFABAH)

Keywords

• Modular construction
• Prefabricated buildings
• Tiny houses
• Garden offices
• Outdoor structures

Headquarters

HQ city

Lennik

HQ country

Belgium

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales

Revenue model

1. Custom Modular Building Sales: EXOBOX generates revenue through one-time project-based sales of custom-built steel-frame modular units (tiny houses, garden offices, poolhouses). Each project is priced per square metre and includes design, production, delivery, and installation. There is no recurring revenue stream. The company acts as a one-stop-shop handling everything from permit support through to on-site placement.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

EXOBOX designs, manufactures and installs prefabricated modular outdoor buildings — including tiny houses, garden offices, poolhouses and garden sheds — using a proprietary steel-frame construction system. Units are built off-site, customized per project, and delivered as finished, year-round-usable structures to the customer's property, primarily in the Belgian market.

Product overview

EXOBOX offers a unified platform of modular, movable outdoor room solutions built with steel frames and fully finished interiors. The core EXOBOX system encompasses three main product variants: Tiny Houses (residential dwellings), Garden Offices (outdoor workspaces), and Poolhouses (poolside functional spaces), plus a Garden Shed variant. All units share the same modular construction approach—maximum 48m² per unit with steel frame, 100mm glass wool insulation, pre-installed electrical/wiring/plumbing, and flexible exterior/interior finishing options. Units can be coupled or stacked for larger configurations. Pricing ranges from €1,800 to €2,200/m² excluding VAT, with installation included.

Differentiator

Problem solved

Functional benefit

Products and services

• Tiny House A fully prefabricated, steel-frame modular tiny house built off-site, customized to the buyer's layout and finishes, delivered and installed on the customer's property in Belgium for use as a small residential or guest dwelling.
• Garden Office (Tuinkantoor) A prefabricated, insulated modular garden office ("Tuinkantoor") designed for year-round use as a home workspace, built on EXOBOX's steel-frame system, customized per project and delivered as a finished unit.
• Poolhouse A prefabricated modular poolside building ("poolhouse") made on EXOBOX's steel-frame system, finished to customer specifications and installed next to the customer's pool as changing room, lounge or storage space.
• Garden Shed (Tuinberging) A prefabricated modular garden shed ("Tuinberging") built on EXOBOX's steel-frame construction system, customized in layout and finish and delivered as a finished storage or utility building for private gardens.

Quantifiable outcome

• Installation completed in 1 day (excluding on-site preparation)
• +3 more outcomes

Named customers6 records

Segments2 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Emerging players

• Boxabl: US prefab manufacturer producing factory-finished foldable home modules that ship and crane-install on site. The factory-finished, transportable, crane-installed model is conceptually parallel to EXOBOX's steel-frame prefab process.
• Cover: US-based prefab ADU manufacturer delivering factory-finished backyard units for residential property extensions. Comparable to EXOBOX's garden office / tiny house use case (ADU as backyard extension), although operating at greater scale in California.
• Kasita: Austin-based prefab maker of small-format modular dwelling units designed as ADUs and urban infill housing. Comparable to EXOBOX's small-footprint, fully finished, factory-built residential units, although targeting the US urban infill ADU market.

Direct peers

• Baluchon: French tiny house builder specializing in custom wood-frame mobile homes on trailers. Direct comparability to EXOBOX's tiny house variant in terms of design-driven mobile residential product for European alternative-housing buyers.
• The Garden Room Company: UK design-and-build specialist for bespoke insulated garden rooms used as offices, studios, and leisure spaces. Comparable end-product category and bespoke turnkey delivery model, operating in a more mature UK garden room market.
• Green Retreats: One of the UK's largest garden room and outdoor building manufacturers, offering insulated garden offices, studios, and leisure rooms installed in a single day. Direct conceptual comparison to EXOBOX's one-stop prefab garden room model, just in a more mature UK market segment.
• Blokhut.nl: Dutch/Belgian timber-frame garden building manufacturer offering prefabricated garden rooms, offices, and storage. Directly comparable regional competitor; differentiates from EXOBOX on material (timber vs. steel) but competes for the same Flemish residential buyer.
• Smart Garden Offices: UK garden office specialist with a turnkey design-manufacture-install model targeting homeowners seeking premium insulated outdoor workspaces. Closely mirrors EXOBOX's garden office product family and custom one-day-installation service.

Broad incumbents

• Plant Prefab: California-based custom and developer-scale prefab home manufacturer with a sustainable-design orientation. Comparable on custom factory-built residential units and eco-friendly positioning (off-grid, low-waste), though it operates at significantly higher production volume than EXOBOX.
• WeberHaus: One of Germany's largest prefabricated home manufacturers, producing custom factory-built single-family homes with high insulation and energy standards. Illustrative comparable on industrialized prefab residential construction in a European regulatory environment similar to Belgium's.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/exoboxtuinkamers

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 EXOBOX