Blank Architects

What Blank Architects does

RUMM Architecten is a Belgian architecture firm operating from offices in Grimbergen (registered headquarters) and Hoeilaart, in the Flemish Brabant region. The firm was formed through the merger of two predecessor practices — G&G architecten and blanco architecten — and now trades under the unified RUMM brand. It is privately held, with no external investment, parent company, or public listing disclosed, and carries the Belgian enterprise number BE 0865.781.715.

The firm provides architectural design services spanning residential, educational, and hospitality typologies. The portfolio documented publicly includes private residences (Woning EJ, Woning VD, Woning NV, Woning H), an educational facility (School Cajetanus), and a hospitality project (BnB Manere). Its stated design philosophy emphasizes restrained refinement, combining precision and clarity with natural warmth to produce spaces with identity, tranquility, and connection to environment. RUMM operates without proprietary technology, software products, AI capabilities, or documented patents, certifications, or formal industry awards; competitive differentiation rests on design quality, brand identity, and project execution.

RUMM generates revenue through project-based engagements quoted individually with clients, with no public pricing list or standardized rate card. Customer segments include private residential clients (primary), hospitality operators, and educational institutions, with a horizontal segmentation approach. The firm markets itself organically through Facebook, Instagram, and LinkedIn, and delivers services via direct client engagement on a regional basis within Flemish Brabant. The firm maintains a job postings page, suggesting active recruitment, and uses Studio Matti as its website development vendor. There is no evidence of expansion beyond the Flemish Brabant region, external capital, or institutional investor involvement.

Name

Blank Architects

Legal name

RUMM Architecten

Website

https://blanco-architecten.be

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

11–50 employees

Short description

RUMM Architecten (formerly Blank Architects) is a Belgian architecture firm providing residential, educational, and hospitality design services in the Flemish Brabant region, formed via the merger of G&G architecten and blanco architecten, operating from offices in Grimbergen and Hoeilaart.

Ownership category

akta.pro rank

Product category

Architecture Services

NAICS

Architectural Services (54131), Interior Design Services (541410), Residential Building Construction (2361)

SIC

General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

Full Gut Renovation (Studs-Out Remodel) (HSAPAEAA)

akta.pro secondary industry

Interior Design Services (BPAHAKAB)

Keywords

• Residential architecture
• Building design services
• Interior architecture
• Educational facility design
• Hospitality architecture

Headquarters

HQ city

Hoeilaart

HQ country

Belgium

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Distribution channels1 record

Marketing channels3 records

Core offering

RUMM Architecten is a Belgium-based architecture bureau providing architectural design, construction, renovation, restoration, and interior design services. The firm serves residential, educational, and hospitality clients in the Vlaams-Brabant region, designing private homes, school facilities, and bed-and-breakfast/lodging properties with a focus on restrained refinement, precision, natural warmth, and meaningful built environments.

Product overview

RUMM is an architecture bureau in Vlaams-Brabant, Belgium, offering architectural design services across residential, educational, and hospitality sectors. The firm emerged from the merger of G&G architecten and blanco architecten, embodying restrained refinement through a combination of precision, clarity, and natural warmth. Their portfolio includes private residences (Woning EJ, VD, NV), educational facilities (School Cajetanus), and hospitality projects (BnB Manere). The firm is characterized by its commitment to creating meaningful spaces that balance identity, tranquility, and human connection with their environment.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Studio MattiminorOthersWebsite development partner responsible for the company's website design and maintenance. Located at rumm.be with credit line '2025 © Website by Studio Matti'. This is a vendor relationship for web services rather than a strategic business partnership.

Recent moves3 records

Expansion highlights3 records

Direct peers

• dmvA architecten: Dutch/Flemish architecture office specialising in residential and cultural projects with a design-led philosophy. Directly comparable as a small, craft-oriented Benelux practice serving private clients and small institutions in similar typologies.
• Stéphane Beel Architecten: Belgium-based architecture practice renowned for refined residential and cultural buildings. Directly comparable as a small, design-led Belgian practice emphasising craftsmanship and restraint, aligned with RUMM's articulated 'restrained refinement' identity.
• a2o architecten: Flemish architecture studio with a portfolio spanning residential, renovation, and public commissions. Directly comparable as a Flemish-Brabant-area firm of similar size executing multi-segment work for both private and institutional clients.
• Crepain Binst Architecture: Established Belgian architecture firm with a portfolio spanning residential, cultural, and commercial projects. Directly comparable as a mature Belgian multi-segment practice of similar scope and design orientation.
• awg architecten: Antwerp-based Flemish architecture firm with broad residential, renovation, and public-sector experience. Directly comparable as a Flemish architectural practice of similar scale serving mixed private and institutional clients.
• Bontinck Architecten: Belgian architectural firm working across residential, public, and small commercial commissions. Directly comparable as a Belgian counterpart operating in the same typologies — homes, schools, small civic buildings — at a similar scale.

Broad incumbents

• Jaspers-Eyers Architects: One of Belgium's largest and most established architecture firms, covering residential, public, and mixed-use commissions. Comparable as a Belgian architectural services provider, though operating at significantly larger scale and broader portfolio than RUMM.

Regional players

• Powerhouse Company: Netherlands-based architecture firm with a portfolio in residential, hospitality, and cultural projects across Europe. Comparable as a design-led practice covering similar typologies (homes, hospitality, civic buildings), though based in a different geography.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks5 records

Key highlights5 records

Customer concentration

• Facebookfacebook.com/BlancoArchitecten
• LinkedInlinkedin.com/company/blanco-architecten
• Instagraminstagram.com/rumm.architecten

Revenue estimate

Valuation estimate

Number of profiles

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 Blank Architects