ᐅ Cost Estimate Architect Single-Family Home. Your Assessment?
Created on: 3 Apr 2015 12:35
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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
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toxicmolotof8 Apr 2015 10:17Thirty years ago, children also developed well in 9sqm (97 square feet) without additional communal space. We are currently building with 12sqm (129 square feet) per child. Therefore, your space allocation is more than reasonable.
We achieve the same number of rooms and usage with a similar design on 125sqm (1,345 square feet). So you are being very generous.
Also, the period of early childhood is significantly shorter than the teenage years. Therefore, this setup works quite well.
We achieve the same number of rooms and usage with a similar design on 125sqm (1,345 square feet). So you are being very generous.
Also, the period of early childhood is significantly shorter than the teenage years. Therefore, this setup works quite well.
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Doc.Schnaggls8 Apr 2015 11:08toxicmolotow schrieb:
Thirty years ago, children also developed well in 9sqm (100 sq ft) without additional common space. We are currently building with 12sqm (130 sq ft). So your space is more than adequate. I completely agree. After visiting various show homes, we were used to children’s rooms of around 20sqm (215 sq ft) or more, so we were a bit surprised that our two children’s rooms would each be only about 15sqm (160 sq ft) according to the plan.
But then we looked back at our own childhood bedrooms and realized that 8 to 9sqm (85 to 100 sq ft) can also work.
We decided to stick with the 15sqm (160 sq ft) rooms, and both feel very spacious and absolutely sufficient.
Best regards,
Dirk
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Username_wahl8 Apr 2015 14:25A simple rectangular floor plan might be more cost-effective and saves heating energy by reducing surface area.
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Username_wahl8 Apr 2015 14:34Using a split-level design probably won’t result in a barrier-free home, if that is important to you (due to age, illness). We are planning our house so that we can live barrier-free on the ground floor as we get older, and the upper floor can potentially be rented out after the children move out.
A split-level design is driven by the characteristics of the plot, so there is no need for extensive fill, and the building is planned and constructed to fit the natural terrain. Obviously, this approach does not allow for full barrier-free access, but we were aware of that.
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