ᐅ Challenging Floor Plan, Plot, and Historic Building – Section 34

Created on: 11 Feb 2025 21:44
B
buttyhome
Dear Forum,

First of all, we would like to introduce ourselves. We are a family of four and have now found a nice sloped plot in NRW. We are aware that it is considered a "challenging plot" in terms of buildability, but we have fallen in love with the location and the view. It is a total of 390 m² (4200 sq ft) of building land, with green space extending behind the plot. Currently, it is occupied by two buildings, the front one of which is a listed monument requiring renovation. The rear building is in such poor condition that it must be demolished. Of course, the monument must not be significantly disturbed within its ensemble, so a modern flat roof is unfortunately not possible. However, I am hopeful that we can connect the monument with our planned new building by a joint or gap.

First, the current situation: the front house is the monument, which I intend to renovate and use as a home office/guest room.


The front house currently has two floors, but ceiling heights no longer meet our needs due to our height, so we plan, as far as possible, to remove some walls and the ceiling between floors to expose the beams.

Now to our planned new build. We are working with an architect we really trust, who has designed and renovated some truly excellent houses within our circle of friends.

Development plan / restrictions
Plot size: buildable - 390 m² (4200 sq ft), with green space behind
Slope: yes, ascending towards the rear, with an incline between 8 and 12 %, so the house will sit at the lower part of the slope. Unfortunately, the view into the valley can only be enjoyed from the upper floor due to buildings on the opposite side of the street.
§34 construction: “mixed neighborhood”, single and two-story buildings with flat and pitched roofs, some 2.5-story pitched roofs
Edge development: apparently quite common in the neighborhood. My architect is more optimistic than I am that edge development will be allowed.
Number of parking spaces: 1
Number of stories: two full floors + pitched roof
Roof type: pitched roof
Style: must integrate with the half-timbered monument for an overall harmony (please no historicism, I prefer modern architecture, perhaps with wooden cladding)
Orientation: The architect insists on building the eaves side facing the street because of window areas. I am unsure if this is possible due to boundary constraints, so I suggest a gable orientation as an alternative. I am particularly interested in your ideas here! We are still in the very first planning phase.
Maximum height / limits: 2.5 stories

Client requirements
Number of occupants: 2 adults + 2 children
Ground floor space needs: master bedroom, 2 children's bedrooms, 2 bathrooms, separate cloakroom, either at the rear (slope) or in the basement: laundry room, storage, building services
Upper floor: large open-plan kitchen and living area with garden access, fireplace, guest toilet
Office: combined with guest room
Occasional overnight guests per year
Open or closed architecture: open plan
Traditional or modern design: modern
Open kitchen with island
Minimum dining seats: 8
Fireplace: yes
Music/speaker wall: no
Balcony, roof terrace: no
Carport

House design
Not yet available, we are still assessing the basic buildability
Designer: architect versus own ideas
Personal budget for house including fittings: initially open, we want to see what is possible
Preferred heating system: heat pump

If you had to give up something, which details or features
- can you do without: -
- cannot do without: large window front facing the garden with direct garden/terrace access

Here is the architect’s first concept. She assumes basic buildability including edge development and therefore wants to place the new build with the eaves side directly adjacent to the neighbor. I would prefer a longer joint/gap, but that would make the edge building length disproportionate. I find that unfortunate as I would like the new building positioned further back in the plot to create a larger front courtyard. This is the first idea currently being checked for feasibility by the building and monument authorities:

Site plan of a building plot with parcels, buildings, and access roads


The extension toward the garden is optional and designed with a flat roof.

My idea would be to extend the building joint further, placing the entrance and cloakroom there, with the new building accessed above. This new building would be rotated to face with its gable. Because it would extend far into the slope, the ground floor would effectively become a basement, and the upper floor would have direct garden access at ground level. I would also need to encroach on the neighboring boundary, but I imagine this might be simpler as I am only planning a single story there. Would the house then have enough windows? You don’t want to orient large window fronts too much towards neighbors, but at least toward the garden I would like to have a large gable window area.

Plot and floor plan with blue building area and surrounding buildings


Thank you very much for your suggestions! What do you think is feasible? What are the pros and cons?
I am also still looking for a contour map. All the maps I find online are somewhat coarse. Is there an online resource for NRW? What options should I select in the NRW geoportal to get a good detailed representation?
K a t j a17 Feb 2025 19:44
I’m wondering if the slab from the house being demolished could be reused. @11ant what do you think? Considering the age, is it better to just tear it out? It probably doesn’t have load-bearing capacity, right?
11ant17 Feb 2025 19:48
K a t j a schrieb:

I’m wondering if the slab from the demolished house could be reused. @11ant what do you think? Given the age, would it be better to tear it out? It probably doesn’t support the load, right?
I don’t know anything about the slab(s), but that should have been assessed during the extension planning.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
K a t j a17 Feb 2025 19:58
11ant schrieb:

...but that should have been determined during the extension.
Yes, I thought so too. It’s probably not that old. Difficult. On the other hand, if in doubt, better to remove it.
K a t j a17 Feb 2025 20:17
Well, I’m afraid it won’t help. You can’t move forward until you know exactly how you are allowed to build on the red-framed area.

Map image: Orange-marked plot with red interior area, numbered parcels.
B
buttyhome
17 Feb 2025 20:41
11ant schrieb:

I don't know anything about the concrete slab(s), but that should have been determined during the extension.
Nothing would have been determined for the extension. It was built illegally, and the ground has already settled significantly. The timber-framed house stands on a masonry foundation that is over 200 years old. I wouldn’t call that a concrete slab.
H
haydee
17 Feb 2025 20:58
Clarify this regarding the wall.
In our case, one wall belongs to us, while the wall next to the other neighbor stands on the boundary and therefore is half on our land, which the neighbor had paid for.
It's not that simple. And in the ground, there are foundation stones that extend under the neighbor's property beneath the parking area. Due to the dense development, the buildings on the boundary had to share the foundation stones.