The phrase "although modest in size" is correct and usable in written English.
It can be used to describe something that is small or not large in a way that acknowledges its size while possibly emphasizing other qualities.
Example: "The museum, although modest in size, houses an impressive collection of contemporary art."
Alternatives: "though small in scale" or "despite its limited dimensions".
Although modest in size, they have short, powerful jaws armed with razor-sharp teeth.
Although modest in size, they may be using as much electricity as a new energy-efficient refrigerator, a study last year by the Natural Resources Defense Council found.
The collection of paired pre-AI and AI-resistant tissues assessed here for mutational status and expression levels of BC associated genes although modest in size is therefore an uncommon cohort.
Although modest in size, a combination of the size of GBT and the low noise of the TES detectors will make our receiver one of the most sensitive of its kind.
Although modest in size, the apartment radiates traces of the glamour associated with those pieds-à-terre familiar from 1940s movies set in the more luxurious precincts of Manhattan — "all windows and filled with light," as a friend described the place.
Located in Montauk, New York, this 4 box modular home is 2100 sq ft. Although modest in size, for a custom home in this area, the house has 4 bedrooms and open plan kitchen/dining/living area.
Although relatively modest in size, these changes in kinetics were statistically significant.
Although they are modest in size, these works have an infectious energy.
Although rooms are modest in size, details such as curated art, chocolate-dipped fortune cookies at turndown, Malin & Goetz amenities and Frette bathrobes elevate the experience.
Although the area is modest in size, it is ambitious in scope.
Although it is relatively modest in size, with a 178-bed community hospital and a primary care practice staffed by 95 doctors, Bellin, in partnership with a neighboring health care system, has been chosen by the federal government as one of 32 pioneering groups to test a new Medicare payment system that rewards providers if they reduce spending but penalizes them if costs soar.
