ᐅ Cost Estimate Architect Single-Family Home. Your Assessment?
Created on: 3 Apr 2015 12:35
T
Tommes78
Hello everyone,
I have a question for you. We bought a plot of land (NRW) with a slight slope and recently visited an architect to have a single-family house designed with great enthusiasm.
During our first meeting, we mentioned a budget of around €260,000 for the house, including everything. He said that we could get something nice for that budget.
At the second appointment, he really presented a nice design. He responded to the sloped plot and planned a kind of split-level house with two building volumes and two shed roofs.
The planned house has an area of 146 m² (1570 ft²) of living space on the ground and upper floors, plus 24 m² (260 ft²) of utility space, totaling 170 m² (1830 ft²) of total area.
Now, the architect made a cost estimate, and he said he calculated with a medium standard. The cost framework according to BKI for 260 to 410 m³ (9200 to 14,500 ft³) of enclosed volume was estimated at 350 m³ (12,400 ft³).
The cost estimate states 763.53 m³ (26,950 ft³) × €350 per m³ (27 per ft³) = €267,236 + carport 72 m³ (2540 ft³) × €100 per m³ (7.44 per ft³) = €7,218 = a total construction cost of €274,455 excluding incidental building costs.
Or broken down differently:
Site preparation and connection: €4,600
Cost group 300 – Building structure: €222,280
Cost group 400 – Technical equipment: €45,180 (oil heating, ventilation system)
Outdoor facilities + carport: €10,000 (which I find a bit low)
Incidental building costs: €41,188
This brings us to a total of €323,000 including VAT.
We were a bit shocked, since our initial budget was €260,000, and going over by around €60,000 seems quite a lot. €280,000 is our absolute limit.
Of course, we still want to contribute some usual DIY work in the end (tiling, flooring, painting, landscaping, interior finishing), but that would probably save at most €15,000 to €20,000.
What do you think? Are those really the amounts you have to pay today, or has the architect perhaps estimated too generously or conservatively? Or is the planned house simply too upscale?
For comparison, we received a fixed-price offer from a general contractor that was quite high-end. There, a house with a gable roof and 160 m² (1720 ft²) (without attic space) was offered for €250,000, excluding basement, ventilation system, and outdoor facilities. But in that case, the plot would have had to be leveled.
Looking forward to your feedback.
Best regards,
Thomas
I have a question for you. We bought a plot of land (NRW) with a slight slope and recently visited an architect to have a single-family house designed with great enthusiasm.
During our first meeting, we mentioned a budget of around €260,000 for the house, including everything. He said that we could get something nice for that budget.
At the second appointment, he really presented a nice design. He responded to the sloped plot and planned a kind of split-level house with two building volumes and two shed roofs.
The planned house has an area of 146 m² (1570 ft²) of living space on the ground and upper floors, plus 24 m² (260 ft²) of utility space, totaling 170 m² (1830 ft²) of total area.
Now, the architect made a cost estimate, and he said he calculated with a medium standard. The cost framework according to BKI for 260 to 410 m³ (9200 to 14,500 ft³) of enclosed volume was estimated at 350 m³ (12,400 ft³).
The cost estimate states 763.53 m³ (26,950 ft³) × €350 per m³ (27 per ft³) = €267,236 + carport 72 m³ (2540 ft³) × €100 per m³ (7.44 per ft³) = €7,218 = a total construction cost of €274,455 excluding incidental building costs.
Or broken down differently:
Site preparation and connection: €4,600
Cost group 300 – Building structure: €222,280
Cost group 400 – Technical equipment: €45,180 (oil heating, ventilation system)
Outdoor facilities + carport: €10,000 (which I find a bit low)
Incidental building costs: €41,188
This brings us to a total of €323,000 including VAT.
We were a bit shocked, since our initial budget was €260,000, and going over by around €60,000 seems quite a lot. €280,000 is our absolute limit.
Of course, we still want to contribute some usual DIY work in the end (tiling, flooring, painting, landscaping, interior finishing), but that would probably save at most €15,000 to €20,000.
What do you think? Are those really the amounts you have to pay today, or has the architect perhaps estimated too generously or conservatively? Or is the planned house simply too upscale?
For comparison, we received a fixed-price offer from a general contractor that was quite high-end. There, a house with a gable roof and 160 m² (1720 ft²) (without attic space) was offered for €250,000, excluding basement, ventilation system, and outdoor facilities. But in that case, the plot would have had to be leveled.
Looking forward to your feedback.
Best regards,
Thomas
So, we visited the architect today (Rhein-Neckar district) and received the following information:
Gross construction cost of €250,000 (cost groups 300+400) for 142m² (1527 sq ft) of living space and/or 630m³ (22,240 cu ft) gross volume.
€1,750 per m² (approximately $163 per sq ft)
€395 per m³ (about $11.20 per cu ft) – although when asked if this was still "current," it was corrected to €420 per m³ (around $12 per cu ft) … this is based on experience with a basement, so I guess my €400 per m³ (about $11.35 per cu ft) estimate is quite reasonable!?
Gross construction cost of €250,000 (cost groups 300+400) for 142m² (1527 sq ft) of living space and/or 630m³ (22,240 cu ft) gross volume.
€1,750 per m² (approximately $163 per sq ft)
€395 per m³ (about $11.20 per cu ft) – although when asked if this was still "current," it was corrected to €420 per m³ (around $12 per cu ft) … this is based on experience with a basement, so I guess my €400 per m³ (about $11.35 per cu ft) estimate is quite reasonable!?
W
Wanderdüne10 Apr 2015 20:26I consider it to be calculated too tightly given the building structure, but it’s not a problem. You should develop a design that takes your space requirements into account and fits within your budget. In phase 3 of the project, there will be a cost estimate, which will then break down the costs in more detail and with greater accuracy.
Wanderdüne schrieb:
I think that’s too tight considering the building structure, but it doesn’t matter.
You should develop a design that matches your space requirements and fits your budget. In design phase 3, there is a cost estimate, where the costs are broken down in more detail and become more precise. Yeah, I’m really curious to see how it turns out.