top of page
Nothing to book right now. Check back soon.
garden pavilion.jpg
2017082818022677-IMG_8130.jpg

john conrad kohlhas AIA's residential work includes urban townhouses, country estates, restorations, renovations, additions and new ground up homes

225 Catherine Street

Philadelphia, PA

Addition and alteration to develop two rental units as part of large three-story townhouse

519 S. 24th Street

Philadelphia, PA

Renovation of a three-story single family townhouse including kitchen, structural work & stairs

1218 Locust Street

Philadelphia, PA

Renovation and expansion of owners 3-story unit of a mixed-use 4-story townhouse

933 North American Street

Philadelphia, PA

Coordination of structural and mechanical design for a new 3-story townhouse

Hunter's Vale

Chester Springs, PA

2500 SF vertical expansion and full renovation of a single family home on a 7 acre horse farm

Conestoga Road Residence

Glenmoore, PA

500 SF addition and major renovations to an historic farm house on 60 acre estate

Wells Road Garden Pavilion

Chester Springs, PA

New entertainment pavilion, formal gardens and hot tub integrated w/ existing compound

Harmony Hill Residence

East Bradford Twsp, PA

New 4500 SF hill-top home with attached state-of-the-art indoor tennis court 

Warwick Furnace Road

Pottstown, PA

New 4000 SF addition to an historic 19th century farm house on 18 acres

115 Kenilworth Street

Philadelphia, PA

Renovation of a three-story single family townhouse including new kitchen, laundry & main bath

1351 South 10th Street

Philadelphia, PA

Proposed renovations of a three-story townhouse including kitchen and main bath

1908 Spruce Street

Philadelphia, PA

Gut renovation of a penthouse apartment in a 4-story double wide townhouse building

Full Cry Farm

Chester Springs, PA

3000 SF addition & full restoration of a 3800 SF historic home on a 48 acre horse farm

Beaver Hill Farm

Kimberton, PA

1200 SF great room addition, restoration and site improvements on a 40 acre horse farm

Wells Road Residence

Chester Springs, PA

New 4500 SF traditional luxury single family home with car barn, pool & pond on 8 acre hilltop site

Andorra Road Residence

Lafayette Hill, PA

Three-building compound housing endless pool, sauna and garage at single family home

1245 School House Lane

Chester Springs, PA

5500 SF home including major additions and renovations to an historic farm house on 21 acres

Yellow Springs Road 

Chester Springs, PA

1500 SF addition for one-floor living plus a new elevator with related facade renovations

2214 Lombard Street

Philadelphia, PA

Renovation of a three-story single family townhouse including all new systems from shell condition

2013 Locust Street

Philadelphia, PA

Renovation of a 2nd floor apartment in a large multi-family townhouse including new kitchen

2214 Lombard Street

Philadelphia, PA

Full renovation and expansion of previously renovated 3-story single f

Merlin Road Residence

Chester Springs, PA

New 3500 SF contemporary single family home and small barn on 60 acre estate

Avon Lea Farm

Chester Springs, PA

3500 SF addition to and full restoration of an historic moderist home on an 80 acre farm

Wells Road Garage

Chester Springs, PA

New five-car garage with apartment above connected to existing car barn

Foster Road Compound

Chester Springs, PA

Full renovation and additions to a 5-building historic horse farm including barn to pool conversion

Ground Hog College Road

Marshallton, PA

New 6100 SF luxury single family home on 32 acre conserved property with pool and apartment

Prizer Road Renovations

Pottstown, PA

Sketches and pricing for additions and renovations to evaluate possible purchase

© 2025 by john conrad kohlhas architect. Powered and secured by Wix

bottom of page