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
I really like the layout and the design. However, compared to a rectangular gable roof house, it won’t be cheaper. Will €270,000 for the house or €320,000 total be enough? You will definitely need to be very careful with material choices later on to avoid going over budget.
What might bother me is the long distance from the dining room to the living room. There is a bedroom and a bathroom in between. During our birthdays and similar gatherings, the activities usually alternate between eating and living areas, which here would be quite separated. But of course, this depends a lot on personal needs.
Also, I find some of the rooms quite large. A 30 m² (320 sq ft) living room and a dining and kitchen area over 40 m² (430 sq ft). There might be some potential to save space here.
I would also be interested in seeing the other views.
What might bother me is the long distance from the dining room to the living room. There is a bedroom and a bathroom in between. During our birthdays and similar gatherings, the activities usually alternate between eating and living areas, which here would be quite separated. But of course, this depends a lot on personal needs.
Also, I find some of the rooms quite large. A 30 m² (320 sq ft) living room and a dining and kitchen area over 40 m² (430 sq ft). There might be some potential to save space here.
I would also be interested in seeing the other views.
B
Bauexperte8 Apr 2015 15:14milkie schrieb:
Will €270,000 for the house or €320,000 total be enough? No
I would rather estimate it like this: 763.53 m³ (26,957 ft³) x €450.00/m³ (ft³) = €343,589 + carport 72 m³ (2,543 ft³) x €100.00/m³ (ft³) = €7,218 = €350,807 total construction cost without additional building expenses. The floor and roof areas should not be underestimated; not to mention the complex earthworks required for a split-level structure.
Best regards, Bauexperte
B
Bauexperte8 Apr 2015 19:30Tommes78 schrieb:
450.00/m3 per m3? Are you sure about that? That is 100 above what the architect estimated. Doesn't it also depend somewhat on the region? Where in North Rhine-Westphalia do you want to build?
Best regards, Bauexperte
So our architect had estimated 390€ initially. However, we are now almost at Bauexperte’s 450€, specifically around 440€. Although this is in Baden-Württemberg (a very rural area), it is for a rectangular gable roof house with 2 1/2 floors, meaning a smaller area on the ground floor. I think with the split level, flat roof, extension, large ground floor area, and so on, you will probably also be closer to this range, and the 350€ estimate is unfortunately not quite realistic.
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