Numbers, not promises. When rights, costs, and risks are clear, negotiations get simple and contracts stick. Buyers knew what they were getting; sellers knew what they were selling. Result: firm bids and calm closings.

Residential site in Zürich with a tested plan. Two clear options—regular blocks or twin towers—both compliant. Access, utilities, noise, and daylight were verified early; weak options were cut. Construction cost estimate CHF 117 600 000. Costs are bracketed with drivers named, and timelines align with tenant move-out. The local housing market runs near-zero vacancy, supporting lease-up. Delivered to the investor as a concise brief with facts, risks, and next steps to permit and build.

The investor gained visible progress while permits take time. The courtyard was done first—paths, pipes and cables, good soil, and trees planted. That small spend (about 5% of total) lifts how the place feels and helps rent sooner, and none of it gets torn out later. All early works are dry-bolted with straight runs, so maintenance stays cheap and parts are easy to swap. The solid pre-1939 buildings wait for surveys and test openings, which cuts risk and avoids surprises. Cash is spent in phases, not all at once, so plans can adjust. The long goal stays clear: about 4 592 m² of future rentable space across 13 buildings, now with real momentum.

A practical workplace, not a showpiece. Ground and lower floors handle making and logistics; upper floors take offices and services. Essentials—access, utilities, daylight, fire—were verified before design. Construction cost estimate CHF 63 700 000. Costs were framed tightly and tied to the real drivers. It’s simple to lease, simple to maintain, and ready to build. The investor got a clear path from study to revenue.

13 well-planned apartments on a simple core—stacked kitchens and baths, repeatable details, warm timber where you touch, concrete where it works, large quiet windows, heat pump and PV-ready roof. Private balconies, clean bike/pram rooms, and a straight stair with one lift keep life simple and costs down. Today this segment in Zürich rents roughly CHF 3 000–3 900 per flat per month, while a realistic total project budget is CHF 4 700–5 500 per m² (BKP 1–9, excl. land and finance). We deliver a decision pack—one-page summary, verified SIA-416 areas, plans, a clear cost model, a short risk list with fixes, and the steps to permit and lease—so you get clarity, not guesswork.

A calm block wrapped in winter gardens that act like a second skin. The outer layer is dry-bolted and clip-in, so worn parts swap fast without mess or costly scaffolds. Behind it is a simple repeating frame with stacked kitchens and short service runs—easy to build, easy to fix. Materials are standard and replaceable: concrete to carry, timber to touch, galvanized steel to weather. Heat pump, PV-ready roof, and rainwater for planting keep energy and cleaning costs down. For an investor, that means fewer surprises, quicker repairs, stable operating costs, apartments that stay quiet and bright, lower turnover, and a stronger exit value.

A light, low canopy that shades the beach, makes power, and quietly collects rain. Slim posts, a calm matte finish, and a repeatable bay keep the view and the breeze. Parts are dry-bolted and clip-in, so anything tired swaps fast without mess. Gutters feed a cistern; wiring runs clean inside the frame. From 2,376 m² of PV you get ~475 kWp, or ~0.7–0.76 GWh a year; the same area harvests ~2.1–2.4 million liters of rainwater. Cool shade and steady utilities for lights, showers, and kiosks—paid by the sun.

A feasibility study to rehab an existing concrete frame into a passive, low-maintenance system. We keep the concrete for its mass—storing heat and smoothing temperatures—and add sun-facing winter gardens: a light, dry-bolted skin that catches winter sun, shades in summer, and can be taken apart. All connections are mechanical—clip-in panels, gasketed joints, short straight runs—so parts swap fast without mess. Sustainability here means durability and easy care: fewer failures, lower operating costs, and homes that use less energy. Estimated total cost CHF 24 600 000, about CHF 455 000 per apartment. Keeping the structure typically saves 18–25% versus new build and shortens the program by a few months.

A new-build feasibility on an empty plot. Two efficient cores and open floors, 15 m deep, so the space can work as offices or switch use to residentila if zoning shifts. The façade is a dry, exchangeable kit—parts bolt on and off—so cleaning and repairs stay simple. The volume steps to absorb later rule changes without tearing into the structure. Budget guide: 2 340 EUR/m², about EUR 20 000 000 million for 8 673 m². The investor gains real options and a clear cost plan that covers both outcomes: a low-maintenance shell, flexible floors, and less risk if the municipality decides late.

Residential development site in an established Zürich neighborhood. The scheme focuses on courtyards, efficient cores, and low-maintenance construction. Access, utilities, daylight, and planning constraints were verified; non-viable options removed. Construction cost estimate CHF 66 500 000. Costs are framed within ±15% with the main drivers identified and risks noted.

We kept the existing slab, cut new column holes, and set simple foundations. Structure uses KLH timber panels with exposed concrete for thermal mass—low maintenance, high durability. Construction cost estimate EUR 652 000. Windows are oak; a folding wall opens the south façade for light and air. Heating relies on solar gain plus a central wood hearth; ventilation is mostly natural with small mech units in kitchen and bath. The garden is drought-tolerant with a circular concrete pool and stone loggias—easy care, strong character. Deliverables include site and floor plans, areas table, cost breakdown, and system notes for a direct handoff to permits and builder.

The idea is simple: protect the experience, not replace it. A light roof floats over slender columns; the beach and paths stay as they are. We checked the basics first—access, utilities, coastal rules, and heritage—so only workable moves remain. Construction cost estimate EUR 4 300 000. Costs are framed tightly and tied to the real drivers, not wishful details. The result is a low-maintenance landmark that feels inevitable, not imposed.

In Maribor we turned an old townhouse into a buildable plan. We set three choices: 8 small flats (~351 m²), 5 mid-size flats (~415 m²), or 2 duplexes (~345 m²). We checked structure, access, services, daylight, fire and escape routes, then removed anything that would fail. Construction cost estimate EUR 1 150 000. The plans are easy to build and low-maintenance. The investor got a decision pack: one-page summary, measured areas and plans, a clear cost model, a short risk list with actions, and the steps to permit and lease. Result: less guesswork and a clean path to income.

Old stone, new energy logic. The extension and massing are set for solar gain, using the stone as a heat reservoir so the house can be heated by solar only, without a conventional system. Construction cost estimate EUR 543 000. Access, drainage, ventilation, plumbing, gas to kitchen, and electrics are laid out with clear scopes; landscape adds shade and cooling. Structure is reinforced where needed, then kept pragmatic and low-maintenance. Deliverables include site and floor plans, room schedule, and system notes for a direct handoff to builder and permits.

Industrial land, turned into a buildable city piece. We fixed the street grid, park network, block sizes and heights, and the land-use mix by block. We mapped servicing, access, parking, and mobility, and staged delivery in clear phases so each step works on its own and avoids rework. Construction cost estimate EUR 1 251 600 000 for 5,460 apartments (≈ EUR 229 240 per apartment). The result is a plan you can price, permit, and build, with a tight decision pack and a defensible path from study to action.

We kept the existing slab, cut new column holes, and set simple foundations. Structure uses KLH timber panels with exposed concrete for thermal mass—low maintenance, high durability. Construction cost estimate EUR 652 000. Windows are oak; a folding wall opens the south façade for light and air. Heating relies on solar gain plus a central wood hearth; ventilation is mostly natural with small mech units in kitchen and bath. The garden is drought-tolerant with a circular concrete pool and stone loggias—easy care, strong character. Deliverables include site and floor plans, areas table, cost breakdown, and system notes for a direct handoff to permits and builder.

Seasonal public room made from the street. Road panels are cut, set on steel columns with small footings, and lifted into a light deck. It can stay open with a mesh skin for an inner garden, or close with glass for a controlled climate. The deck keeps access to pipes easy, turns car-only metres into civic space, and stays reversible—parts bolt on and off, bays open for repairs, and the street remains a street on paper. All-in, simple totals for 432 m²: mesh garden version EUR 890 000; glass enclosure version EUR 1 300 000. Both include cutting the road into panels, steel columns and footings, lifting and fixing the deck, services, lighting, drainage, access, basic design/permits, and a small contingency.