Diamona & Armor

What Diamona & Armor does

Diamona & Harnisch (legal entity: D & H Projektmanagement GmbH, trade name D&H) is a Berlin-headquartered premium residential real estate developer founded in 2008 as a partnership between managing director Alexander Harnisch and Diamona Holding. The company develops, markets, and sells new-build condominiums across premium Berlin districts (Friedrichshain, Dahlem, Schöneberg, Charlottenburg) and Potsdam, with a current portfolio of eight projects ranging from 24 to 219 units. Since founding, the company has completed over 1,500 apartments and reports cumulative property-sales turnover exceeding €900 million.

The core product is premium, energy-efficient new-construction condominiums built to the KfW40 efficiency standard (20-30 kWh/m²a) and DGNB Gold sustainability certification, with classical architecture designed in partnership with Klaus Theo Brenner / Stadtarchitektur using natural stone facades. Properties are smart-home-ready with modern infrastructure, EV charging stations, and home-office-friendly floor plans. Several projects integrate ground-floor retail anchors such as EDEKA supermarkets (The FRANZ with ~4,116 m² of retail, Eckert-Carré with a planned commercial unit).

The business model is one-time condominium unit sales to individual buyers at prices ranging from approximately €178,293 to €5,478,293, sold through direct website listings, on-site showrooms, the D&H Partner Portal for brokers, and independent real estate agents. The company operates with a lean 28-person core team covering project management, sales, after-sales, marketing, and PR, financing growth through project revenues and the Diamona Holding capital partnership rather than external equity or debt capital markets. Distribution is single-country/domestic (Germany), with no disclosed international expansion or recurring software/platform revenue streams.

Name

Diamona & Armor

Legal name

D & H Projektmanagement GmbH

Website

https://diamona-harnisch.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

11–50 employees

Short description

Diamona & Harnisch is a Berlin-based premium residential real estate developer founded in 2008, selling energy-efficient KfW40/DGNB-certified new-build condominiums to individual buyers across Berlin and Potsdam, with a portfolio of eight projects and over 1,500 apartments completed since inception.

Ownership category

akta.pro rank

Product category

Residential Real Estate Development

NAICS

New Housing For-Sale Builders (236117)

SIC

General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

Residential Luxury / High-End Home Construction (IMAFABAJ)

akta.pro secondary industry

Residential Green / High-Performance Home Construction (Net-Zero, Passive House) (IMAFABAH)

Keywords

• Premium residential development
• New construction condominiums
• Energy efficient housing
• Berlin real estate developer
• Sustainable property development

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Others

Revenue model

1. Condominium Sales: One-time sales of newly constructed premium residential apartments in Berlin. Properties sold to individual buyers as condominiums. Revenue generated from complete property transactions including apartments and parking spaces.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Diamona & Harnisch develops and sells premium new-construction condominiums across Berlin and Potsdam. Projects are built to KfW40 energy efficiency standard with DGNB Gold sustainability certification, range from 24 to 219 units per development, and are sold as individual apartments (€178,293–€5,478,293) plus parking spaces directly to individual end-buyers, supplemented by a partner portal and independent brokers. The portfolio emphasizes classical architecture with modern elegance, natural-stone facades, smart-home-ready infrastructure, EV charging, and integrated retail amenities such as EDEKA supermarkets.

Product overview

Diamona & Harnisch (D&H) is a Berlin-based real estate developer specializing in premium new construction condominiums. The company operates as a unified portfolio of residential development projects rather than a modular software platform. The product portfolio consists of eight distinct real estate projects across Berlin and Potsdam: Eckert-Carré (Friedrichshain, 205 units, 2029), Marshall One (Dahlem, 58 units, 2026), The Franz (Friedrichshain, 160 units, completed 2024), Am Winterfeldt (Schöneberg, 219 units, available), Am Park Potsdam (80 units, available), The Kurfürst (Schöneberg, 24 units, 2027), Schlüter 18 (Charlottenburg, 33 units, available), and Wieland & Pestalozzi (Charlottenburg, available). Projects range from modern urban developments to luxury residences, with apartment sizes from 27-257 m² and prices from €178,293 to €5,478,293.

Differentiator

Problem solved

Functional benefit

Products and services

• Eckert-Carré Premium new-construction residential development in Berlin-Friedrichshain at Eckertstraße 8-11 featuring 205 apartments and 1 commercial unit (integrated EDEKA supermarket). Apartments range from 2-4 rooms, 38.91–90 m², with expected completion in Q3 2029. Classical architecture with natural-stone facade, KfW40/DGNB-Gold construction standard.
• Marshall One Premium residential project in Berlin-Dahlem comprising 58 apartments in two buildings with 4,232 m² total living space. Construction began in fall 2024 with completion scheduled for 2026. Apartments range from 2-4 rooms (37–133 m²) with 39 underground parking spaces. Premium Dahlem location with KfW40/DGNB-Gold construction.
• The Franz Completed premium residential project in Berlin-Friedrichshain with 160 apartments across 6 buildings and approximately 12,247 m² total living space. Apartments range 38–153 m² (1-4 rooms) with balconies/terraces and landscaped inner courtyard. Includes an integrated EDEKA supermarket (~4,116 m² sales area) on the ground floor. Handed over summer 2024.
• Am Winterfeldt Premium residential development in Berlin-Schöneberg with 219 apartments. Total living space of 17,468 m² across multiple buildings at Pallasstraße 25-26, Elßholzstraße 1-3, and Gleditschstraße 27-31. Immediately available for occupancy. Large-scale urban development with KfW40/DGNB-Gold construction.
• Am Park Potsdam Premium residential project in Potsdam with 80 apartments at Georg-Hermann-Allee 123. Living space of 6,200 m² with underground and outdoor parking options. Immediately available. KfW40/DGNB-Gold construction; the only project outside Berlin proper.
• The Kurfürst Premium residential project in Berlin-Schöneberg with 24 apartments at Kurfürstenstraße 41 & 42 and Schönegarten 6. Living space of 3,139.52 m². Expected completion 2027. Boutique-scale development with KfW40/DGNB-Gold construction.
• Schlüter 18 Premium residential project in Berlin-Charlottenburg with 33 apartments at Schlüterstraße 18. Living space of 3,139.52 m². Immediately available. KfW40/DGNB-Gold construction in a Charlottenburg location.
• Wieland & Pestalozzi Premium residential project in Berlin-Charlottenburg at Pestalozzistraße 97 and Wielandstraße 50. Immediately available. KfW40/DGNB-Gold construction in a Charlottenburg location.

Quantifiable outcome

• Heating costs reduced to €480/year for 80 sqm apartment vs €2,400/year for older buildings
• +1 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core.

• EDEKAcoreStrategic or Co-development Partner · 1 January 2024Integrated EDEKA supermarket in The FRANZ project with approximately 4,116 square meters of retail space on the ground floor, ensuring urban convenience for residents. The store continues the site's history as a neighborhood food supply location.
• Diamona HoldingcoreStrategic or Co-development PartnerLong-standing partnership between Berlin-born project developer Alexander Harnisch and Diamona Holding, supporting the company's position as one of Berlin's leading real estate developers. The partnership enables development of premium residential properties characterized by modern design and energy-efficient architecture.
• Klaus Theo Brenner (Architecture)coreStrategic or Co-development PartnerArchitecture firm Klaus Theo Brenner designed The FRANZ project, drawing inspiration from Friedrichshain district characteristics and surrounding building typologies, translating formal elements into contemporary design language. Classic architecture meets modern elegance.
• Stadtarchitektur (Architecture Partner)coreStrategic or Co-development PartnerArchitecture partnership with Stadtarchitektur by Klaus Theo Brenner, creating timeless elegance in Milanese Moderne style for D&H projects. Focused on classical architecture with modern elements and high-quality natural stone facades.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Becken Holding: Hamburg-headquartered German developer with notable Berlin premium residential projects; comparable in scale, design-led approach, and target buyer profile.
• Bauwert AG: Long-established Berlin residential developer focused on high-quality new-build apartments in central locations; competes head-to-head with D&H for premium buyers and similar land parcels.
• Euroboden GmbH: Design-led German developer of premium urban residences with strong architectural branding; comparable in quality positioning, target buyer, and project-by-project sales model.
• Pandion AG: German premium residential developer building high-end new-build condominiums in major urban centers; comparable product positioning, sustainability focus, and unit-pricing strategy.
• AQTON SE: Berlin-focused premium residential developer building high-end new-construction condominiums in similar inner-city micro-markets; most direct comparable in terms of product, customer segment, and geography.

Broad incumbents

• Deutsche Wohnen: One of Germany's largest listed residential property companies with significant Berlin exposure; competes for both buyers and development sites, though with a much broader portfolio and rental focus.
• Vonovia: Europe's largest residential real estate company with deep German urban-market exposure; a capital-rich incumbent that increasingly competes for premium Berlin development opportunities.
• BUWOG / Aroundtown: Large German residential developer with Berlin condominium projects; a much larger incumbent that competes for premium buyer demand and developable land in the same districts.
• Consus Real Estate / CG Group: German residential developer with substantial Berlin pipeline; larger and more diversified than D&H but competes for similar inner-city sites and premium buyers.

Regional players

• Trei Real Estate: German residential and mixed-use developer active in Berlin and other major cities; comparable in project size and product mix though typically broader in segment focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

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 Diamona & Armor