18 Derby StreetSemaphore SA 5019
Property Details for 18 Derby St, Semaphore
18 Derby St, Semaphore is a 4 bedroom, 3 bathroom House with 3 parking spaces and was built in 1900. The property has a land size of 1200m2 and floor size of 309m2. While the property is not currently for sale or for rent, it was last sold in October 2025. There are other 4 bedroom House sold in Semaphore in the last 12 months.
Last Listing description (March 2012)
Rarely does a home of this calibre come on the market in this tightly held coastal strip location. Approximately 1200sqm of land with a 2 street frontage!
Commanding a substantial allotment with rear access in one of the areas most prized coastal settings, this character family residence presents immaculate interiors of generous proportions in a serene seaside location.
The home's flexible floor plan is perfectly designed for grand scale entertaining and large family living. It boasts up to four bedrooms plus a study/library, all rooms are quietly positioned they offer ornate fireplaces and high ceilings; the main has a marble fireplace with views out to the garden.
Entertaining will be a delight with the grand formal lounge room, an amazing space which features a bay window with a window seat and another marble fire place. A large open plan living room is located at the rear of the home featuring a brand new timber floor and access to the out door entertaining area.
The central timber kitchen has an adjacent meals area which flows to the formal and informal living rooms. Other features include a studio/garage with access from the rear entrance, an antique wrought iron fence, a full sized dry cellar, two bathrooms, polished floor boards, high ornate ceilings, split system air conditioning, gas heating and much more.
Sited on a large allotment only steps from the beach, a short stroll to Semaphore road and all facilities. This substantial bluestone villa offers any astute purchaser wanting to purchase one of the last remaining grand residences the opportunity to further enhance and create arguably one of the peninsula's greatest homes.
A home for the most discerning.
Property History for 18 Derby St, Semaphore, SA 5019
- 31 Oct 2025Sold for $2,420,000
- 02 Feb 2021Transferred
- 10 Apr 2012Sold for $990,000
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0About Semaphore 5019
The size of Semaphore is approximately 1.2 square kilometres. It has 4 parks covering nearly 6.6% of total area. The population of Semaphore in 2016 was 2764 people. By 2021 the population was 2749 showing a population decline of 0.5% in the area during that time. The predominant age group in Semaphore is 50-59 years. Households in Semaphore are primarily childless couples and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Semaphore work in a professional occupation.In 2021, 68.20% of the homes in Semaphore were owner-occupied compared with 67.30% in 2016.
Semaphore has 1,513 properties. Over the last 5 years, Houses in Semaphore have seen a 72.18% increase in median value, while Units have seen a 106.50% increase. As at 28 February 2026:
- The median value for Houses in Semaphore is $1,166,421 while the median value for Units is $678,940.
- Houses have a median rent of $695 while Units have a median rent of $510.
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