ᐅ New construction of an urban villa with a granny flat and double garage

Created on: 23 Dec 2016 16:15
G
google80
Hello dear house building forum community,

First of all, a big compliment to the forum and its users. We look forward to your opinions on our building project (main house with exterior plaster + granny flat (to be rented out) + double garage) with the following details:

Development plan/restrictions
Plot size: 808 m² (9749 sq ft)
Slope: No
Floor area ratio: 0.3 (+25 %)
Floor space index
Building window, building line and boundary: Yes, see site plan (blue line)
Edge development: Yes (garage 9 x 6 m (30 x 20 ft))
Number of parking spaces:
Number of floors: 1.5
Roof type: minimum 25 degrees
Architectural style: none specified
Orientation: none specified
Maximum height/limits: 9 m (30 ft)
Additional requirements: No ground sealing within 3 m (10 ft) around marked oak trees (3 pieces)

Client requirements
Architectural style, roof type, building type: Urban villa with hipped roof
Basement, floors: No basement
Number of occupants, age: Three (including tenant), between 20 and 40 years old
Space requirements on ground floor and upper floor: Granny flat 45 m² (484 sq ft), main house ground and upper floor each 90 m² (969 sq ft)
Office: Will be used as guest room
Number of overnight guests per year: 12-24
Open or closed architecture
Conservative or modern style: Modern urban villa
Open kitchen, kitchen island: Yes, with kitchen island and three glass components (one fixed and two sliding, to allow a closed kitchen if needed)
Number of dining seats: In kitchen and living room (similar to granny flat)
Fireplace: Prepared for installation
Music/surround system: Teufel 5.1 system
Balcony, roof terrace: No
Garage, carport: Lockable double garage
Utility garden, greenhouse: Utility garden
Additional wishes/special features/daily routine, including reasons why certain features are desired or omitted

House design
Planning source: Own design, adapted from architect’s drawing
What do you particularly like? Why?
Since two full floors are not permitted (which would be preferred), a granny flat was included as a cost-effective solution compared to used properties, with tax advantages and additional retirement income (I already own rental properties). Furthermore, I appreciate the thoughtful layout of the rooms, although the window in the utility room might still change (intentionally a skylight, to allow space for utility connections).

What do you like less? Why?
The roof without an overhang above the garage (due to the maximum permitted building width – adding this would reduce living space and affect all room layouts).
The staircase in the main house, although every option (see https://www.hausbau-forum.de/threads/grundrissplanung-unbedingt-vor-Beitrag-Erstellung-lesen.11714/) has been considered, and we currently prefer the existing version.

Price estimate according to architect/planner: 290,000 EUR
Personal price limit for the house, including fixtures: 320,000 EUR
Preferred heating technology: Gas

If you had to compromise, which details/features could you do without?
- Could do without: Fireplace, three-part glass elements in the kitchen, high-quality outdoor landscaping (budget should be focused on the building itself)
- Cannot do without: Garage with roof and granny flat

Why has the design ended up like this?
Due to the protected trees on site, the orientation of the plot, ideas from model home parks, and the desired natural light in every room. The granny flat intentionally has no windows facing our plot so the tenant is kept at a respectful distance despite adjacent buildings. Therefore, it also has a separate access.

Attic floor plan: bedroom, two children’s rooms, dressing room, bathroom, hallway, stairwell

Ground floor plan: open living/dining/kitchen area, sleeping, bathroom, garage.

Architectural plan of a detached house: ground floor, attic floor plans and cross sections.

Site plan of a house with terraces, property boundary, trees, dimensions and compass.

Two-storey residential house with central door and garage on the right; front and side views architectural drawing

Architectural drawing: two-storey house with pitched roof and extension, two views.

Jpgs added by moderation, ypg
google809 Jan 2017 13:19
Nafetsm schrieb:
It’s somehow a pity considering all the energy and time invested by forum members. Here, someone is completely resistant to advice and at the same time very touchy. How could a different outcome be expected? At least the thread is entertaining

A completely different question: why did you consult two architects?

Because both architects failed to meet the simplest requirements and provided no explanations after multiple requests or did not perform a plausibility check on their own drawings. Here are some examples:

- Window fronts (upper and ground floors) not aligned in a straight line
- Cabinets in the dressing room placed directly in front of the window
- No consideration of roller shutter boxes
- Dimensions changed without consultation or feedback (only a 70cm (28 inches) wide shower was feasible)
- Site plan and open space plan did not match the property (displaced by over 2 meters (6.5 feet)) when submitting documents to the municipality for exemptions, e.g., garage roof; our contact details on the documents belonged to other persons
- Downpipe for laundry omitted multiple times
- Buildable width exceeded repeatedly by 5 meters (16 feet)
- ...

And much more. If it happens once... okay, everyone makes mistakes sometimes, but it can’t happen repeatedly.

It’s clear again that I’ve been labeled. I’m definitely not resistant to advice, and I have proven this several times here already. I don’t like the wording used by some people here and that’s how I respond. Saying something is less good or not suitable sounds very different from calling it stupid or something similar. Just accept it without comment.