Floor plan change during core renovation of listed terraced house

Hello forum,

I ended my discussion some time ago about the floor plan of a semi-detached house on a slope after talks with the municipality, which did not quite align with my ideas (outlying area, approval possible but probably not to the extent I wanted). The background was also that another project was already taking shape back then, which I am now putting up for discussion here...

Development plan/restrictions
Plot size: 550m2
Further specifications: House built in 1914, protected as an individual monument. Neighboring house was renovated a few years ago. Additional dormer on the street side and skylights on the garden side were approved.

Client requirements
Basement, floors: House is partially basemented in the hallway/living room area. Attic is to be developed.
Number of persons, age: N/A. The house is to be rented out.
Garage, carport: Garage (1960s) existing in the rear garden area. Must be rebuilt and possibly slightly shifted and extended by a carport. However, this is not to be part of this discussion.

House design
Who designed it:
- Architect: Original design by architect Kurt Frick, built 1914
- Do-it-yourself: New room layout (see sketch)
What do you particularly like? Why? Very, very good location.
What do you not like? Why? The current room layout (largely corresponds to the plans from 1914) is no longer contemporary for me. The goal is to enable modern living here. Due to the monument status, changes especially to the exterior are only very limitedly possible.
Personal price limit for the house, incl. equipment: Target budget for renovation max. €200,000, reserves in equity available. Roof was completely redone in 2010.
Preferred heating technology: Consultation necessary. Gas heating if possible. Existing central coal heating including piping is damaged.
Why does the design look as it does now? My sketch is based on changes that represent as little intervention as possible in the original structure of the house, especially the load-bearing walls. Also limiting is the current position of the chimney. Whether and how this may be changed must be discussed with the monument authority.

Existing floor plan: (Unfortunately without a north arrow, top of plan is NNE)

New floor plan idea: (top of plan is NNE)

A few more comments...

Ground floor:
My wish is that at least one WC be created on the ground floor. Shower would be optional. Unfortunately, this makes the kitchen very small.
The "long distances" from the entrance to the kitchen are mitigated, since the garage is in the rear garden area and groceries will probably be brought in through the dining room (door planned to be lockable from outside).
The hallway and stairs are very narrow. Possibly shifting the wall to the living room would be possible to allow a wider staircase and a small cloakroom/shoe cabinet in the hallway.
The WC/shower would have a rough width of about 1.15m. Is that sufficient?

Upper floor:
The bedroom (also in current use) is a trapped room and offers poor possibilities for a large wardrobe (chimney, window). The version with the dressing room is a makeshift solution with which I am not yet satisfied.
The bathroom is to include washer/dryer. Possibly another washer connection in the basement.
The WC (from 1914 without washbasin) is to be removed. The staircase to the attic should be aligned with the staircase from the ground floor. The original staircase to the attic is very, very steep!

Attic:
The chimney is the biggest obstacle to room layout in the attic.
Besides the existing windows, installing a dormer to the south (street side) and skylights (garden side) is probably possible.
A storage room in the attic would be nice since the cellar is quite small and probably well filled with modern building services technology.

Thank you very much for all ideas, tips, concepts!

P.S.: Please no discussion about the sensibility of renovating a listed property. The house has been in the family for over 60 years and will remain so. Unfortunately, it has been unoccupied and unused for the last 20 years and is therefore in poor condition.

What does the floor plan of the neighbor look like? Bathrooms on single-shell municipal partition walls can definitely be problematic here.

Bathrooms on single-layer communal partition walls can certainly be conflict-prone here.

Regarding noise generation?

The neighboring floor plan is basically mirrored, with the neighboring house being about 0.5 m smaller on both sides. That means on the ground floor, the toilet and kitchen would border the kitchen and staircase, respectively. Unfortunately, I (still) do not know the neighbor’s room layout on the upper floor. If I look at his windows (frosted glass), I suspect his bathroom is also located on this wall.
(The windows in his house were replaced during the short period when there was no heritage protection. That is why his house has altered window openings and no mullions. The 3rd house was then renovated a few years ago according to the heritage specifications).

I think you made the best out of it! A lost bedroom I don't find bad. The captured office I find less practical (maybe you need it as a guest room or additional children's room), I would give it its own access from the hallway.
Washing machine on the sleeping level I find sensible especially with narrow (and probably many due to high ceiling height) stairs.

The attic I find OK. You could place the children's room door to the right according to the plan and create a small storage room at the bottom of the plan.
Alternatively: extend the wall on the right straight to the left between the windows and place the storage room at the top left into the children's room. Or enlarge the hallway if the storage room absolutely must be accessible from the hallway.

Ground floor 1.5 m the shower/WC should work.

The WC/shower would have a shell construction width of approx. 1.15m.

it is only 115 cm .. I consider it too narrow, possibly feasible if the shower is on the right side, a small hand basin in the middle, and the WC on the left side. But then the door must open outwards.

it's only 115 cm .. I think that's too tight, possibly doable if the shower is on the right side, a small hand basin in the middle and the toilet on the left side. But then the door must open outwards.

Oh, sorry. Yes, that's tight but I think it's doable.