ᐅ Floor plan for a 200 m² hillside house with a granny flat / secondary unit
Created on: 25 Jan 2022 11:00
M
moooooo32
Development Plan / Restrictions
Plot Size: 388sqm (4179 sqft)
Slope: Yes, facing northwest
Site Coverage Ratio, Floor Area Ratio: The architect has not provided details yet; we are building according to Paragraph 34
Building Envelope, Building Line and Boundary: Maximum house width 8.80m (29 ft), former house length of existing building 14m (46 ft)
Number of Parking Spaces:
Number of Floors:
Roof Style: Gable roof
Orientation: According to the slope, ridge also facing northwest
Client Requirements
Architectural Style, Roof Type, Building Type: Gable roof
Basement, Number of Floors: 2 levels,[/I]5 plus attic space
Number of Occupants, Ages: 5 persons (family members aged 32, 32, 5, and 2) plus 1 person (85) in an apartment unit
Space Requirements on Ground Floor, Upper Floor: Apartment approximately 50sqm (538 sqft), remainder about 150sqm (1615 sqft)
Office Use: Family use or home office? Office, since the occupants are teachers
Guest Stay Frequency per Year: Varies, but frequently family and friends from across Germany
Open Kitchen, Cooking Island: Open, preferably with a cooking island but not essential
Number of Dining Seats: 6-8
Fireplace: Not planned initially, possibly reconsidered due to KFW funding changes
Balcony, Roof Terrace: Potentially a small “roof terrace” above the apartment terrace would be nice, but not planned due to budget (great view)
Garage, Carport: There is an existing garage (built 1995) in an inconvenient location, which will remain for now
Additional Wishes / Special Features / Daily Routine, including reasons for decisions
The plot is heavily built up, so we have tried to identify spots with good views, which involved a lot of planning on my part. Good views are towards northeast and west
House Design
Who designed the plans:
Architect and do-it-yourself: Mainly my own design; the architect made changes, some of which we did not like (e.g., U-shaped staircase, arrangement of rooms difficult), so currently it is essentially a drawing based on my drafts with useful improvements from the architect
What do you particularly like? Why?
Staircase, integration of WC on the upper floor, loft door to the open space as a connection to the “stairwell.”
Entrance to the utility room to be placed under the stairs on the ground floor, shifting the wall of the apartment unit accordingly.
Children’s rooms are the same size, space-saving staircase to the attic (amazing view from there), use of attic as playroom and possibly guest accommodation.
Living room ceiling height increased to 2.70m (8 ft 10 in) planned on the upper floor.
What do you dislike? Why?
Entrance to the utility room still needs to be placed under the stairs on the ground floor, requiring adjustment to the apartment’s wall.
Windows generally need revision; in the living room facing west, possibly an “imitation corner window” (with support pillar) to maximize the view.
The kitchen window facing northeast should definitely be a seating window.
Price Estimate According to Architect/Planner:
Including groundwork, €540,000 (approximately $600,000), but originally planned with KFW 55 energy standard, which we missed submitting on time. Now we need to reconsider, as we actually wanted KFW 40 standard for the two residential units. 😡
Personal Price Limit for the House, Including Fixtures:
€540,000 would be ideal; preliminary estimates from contractors roughly match this.
Preferred Heating Technology: Planned heat pump with underfloor heating
If you have to give up on which details / expansions
-could you give up:[/I]
Attic later, glass door/loft door to living room later, no planned lift-and-slide doors or other fancy features
-cannot give up:
Wooden flooring, sufficient windows, wheelchair accessibility on the ground floor
Why is the design the way it is now?
Long iteration process on my part, partly inspired by Pinterest, but overall the external envelope is quite predetermined
What is the most important/fundamental question about the floor plan summarized in 130 characters?
Is there anything that doesn’t work? Have we missed anything? How about the window layout (still to be revised)? Does it make sense as the architect suggested? We even want to remove some windows (e.g., in the bedroom).
Plot Size: 388sqm (4179 sqft)
Slope: Yes, facing northwest
Site Coverage Ratio, Floor Area Ratio: The architect has not provided details yet; we are building according to Paragraph 34
Building Envelope, Building Line and Boundary: Maximum house width 8.80m (29 ft), former house length of existing building 14m (46 ft)
Number of Parking Spaces:
Number of Floors:
Roof Style: Gable roof
Orientation: According to the slope, ridge also facing northwest
Client Requirements
Architectural Style, Roof Type, Building Type: Gable roof
Basement, Number of Floors: 2 levels,[/I]5 plus attic space
Number of Occupants, Ages: 5 persons (family members aged 32, 32, 5, and 2) plus 1 person (85) in an apartment unit
Space Requirements on Ground Floor, Upper Floor: Apartment approximately 50sqm (538 sqft), remainder about 150sqm (1615 sqft)
Office Use: Family use or home office? Office, since the occupants are teachers
Guest Stay Frequency per Year: Varies, but frequently family and friends from across Germany
Open Kitchen, Cooking Island: Open, preferably with a cooking island but not essential
Number of Dining Seats: 6-8
Fireplace: Not planned initially, possibly reconsidered due to KFW funding changes
Balcony, Roof Terrace: Potentially a small “roof terrace” above the apartment terrace would be nice, but not planned due to budget (great view)
Garage, Carport: There is an existing garage (built 1995) in an inconvenient location, which will remain for now
Additional Wishes / Special Features / Daily Routine, including reasons for decisions
The plot is heavily built up, so we have tried to identify spots with good views, which involved a lot of planning on my part. Good views are towards northeast and west
House Design
Who designed the plans:
Architect and do-it-yourself: Mainly my own design; the architect made changes, some of which we did not like (e.g., U-shaped staircase, arrangement of rooms difficult), so currently it is essentially a drawing based on my drafts with useful improvements from the architect
What do you particularly like? Why?
Staircase, integration of WC on the upper floor, loft door to the open space as a connection to the “stairwell.”
Entrance to the utility room to be placed under the stairs on the ground floor, shifting the wall of the apartment unit accordingly.
Children’s rooms are the same size, space-saving staircase to the attic (amazing view from there), use of attic as playroom and possibly guest accommodation.
Living room ceiling height increased to 2.70m (8 ft 10 in) planned on the upper floor.
What do you dislike? Why?
Entrance to the utility room still needs to be placed under the stairs on the ground floor, requiring adjustment to the apartment’s wall.
Windows generally need revision; in the living room facing west, possibly an “imitation corner window” (with support pillar) to maximize the view.
The kitchen window facing northeast should definitely be a seating window.
Price Estimate According to Architect/Planner:
Including groundwork, €540,000 (approximately $600,000), but originally planned with KFW 55 energy standard, which we missed submitting on time. Now we need to reconsider, as we actually wanted KFW 40 standard for the two residential units. 😡
Personal Price Limit for the House, Including Fixtures:
€540,000 would be ideal; preliminary estimates from contractors roughly match this.
Preferred Heating Technology: Planned heat pump with underfloor heating
If you have to give up on which details / expansions
-could you give up:[/I]
Attic later, glass door/loft door to living room later, no planned lift-and-slide doors or other fancy features
-cannot give up:
Wooden flooring, sufficient windows, wheelchair accessibility on the ground floor
Why is the design the way it is now?
Long iteration process on my part, partly inspired by Pinterest, but overall the external envelope is quite predetermined
What is the most important/fundamental question about the floor plan summarized in 130 characters?
Is there anything that doesn’t work? Have we missed anything? How about the window layout (still to be revised)? Does it make sense as the architect suggested? We even want to remove some windows (e.g., in the bedroom).
M
moooooo3217 Feb 2022 21:30What do all these Wow reactions mean? What are they referring to?
askforafriend17 Feb 2022 21:51Well, I can only speak for myself – "wow" refers to the price increase. By the way, the staircase meets the recommended guidelines and complies with the standard DIN18065 (2 x 18.9 = 37.8 plus 26 equals 63.8). Step length ranges from 59 to 65 are acceptable (formula: 2 x step length plus tread = 59 to 65).
M
moooooo3217 Feb 2022 21:59askforafriend schrieb:
Well, of course I can only speak for myself – wow refers to the price increase. By the way: the staircase meets the recommended guideline and complies with the DIN 18065 standard (2 x 18.9 cm (7.4 inches) = 37.8 cm (14.9 inches) plus 26 cm (10.2 inches) equals 63.8 cm (25.1 inches)). Step length ranges from 59 to 65 cm (23.2 to 25.6 inches) are acceptable (formula: 2 x step length plus tread = 59 to 65).Yes, I know it’s within the acceptable range. But it’s a staircase like the one my parents have in their terraced house, and it’s quite steep. Especially considering you constantly have to carry groceries and have visitors. It’s definitely not comfortable. (Comfort guideline: tread depth minus riser height should be 12 cm (4.7 inches). Here it’s 7.1 cm (2.8 inches)! Safety guideline: tread depth plus riser height should be at least 46 cm (18.1 inches), here it’s 44.9 cm (17.7 inches); please correct me if I’m wrong?)
askforafriend17 Feb 2022 22:06Correct. But you know, larger staircases simply require more space 🙂 And there is a budget… If the staircase feels too steep for you, tell Archibald and change the floor plan, no problem.
By the way: Very few staircases meet all three rules, it takes a lot to get everything right. My advice: Leave it as it is, you'll get used to it anyway. A bit of leg training keeps you fit.
By the way: Very few staircases meet all three rules, it takes a lot to get everything right. My advice: Leave it as it is, you'll get used to it anyway. A bit of leg training keeps you fit.
M
moooooo3217 Feb 2022 22:13askforafriend schrieb:
Correct. But you know, larger staircases simply require more space 🙂 And there’s a budget… If the stairs are too steep for you, just tell Archibald and change the floor plan, no problem, right? I understand. My point is that now I have to consider whether such a staircase makes sense in this case, whether it’s too steep, and so on. Then I research and find that it probably is too steep, but from the actually knowledgeable people, there’s unfortunately… nothing. If I hadn’t compared the rise with my friend’s UT staircase, I would never have realized it.
askforafriend17 Feb 2022 22:17Yes, obviously you have the wrong architect. There are always some bad apples. By the way: In our semi-detached house, we currently have a rise of 170mm (6.7 inches) and a tread depth of 275mm (10.8 inches), and honestly – it feels like you never reach the top. The staircase just feels too long 🙂 Do you know what I mean? Imagine a villa with such an impressive staircase on the left and right. It takes a while to get to the top…
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