[ ]

Check this box if no longer subject to Section 16.
Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1.

Name and Address of Reporting Person
Thomas J. Shafer
2928 Normandy Drive
Ellicott City, MD 21043

2.

Issuer Name and Ticker or Trading Symbol
American Community Properties Trust ("APO")

3.

I.R.S. or Social Security Number of Reporting Person (Voluntary)

4.

Statement for Month/Year
September 1999

5.

If Amendment, Date of Original (Month/Year)

6.

Relationship of Reporting Person to Issuer (Check all applicable)
[ ] Director [ ] 10% owner [ ] Officer (give title below) [ X ] Other (specify below)
Trustee

7.

Individual or Joint/Group Filing (Check applicable line)
[X] Form Filed by One Reporting Person
[ ] Form Filed by More than One Reporting Person

Table I

Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1. Title of Security

2. Trans-
action
Date

3. Trans-
action
Code

4. Securities Acquired (A)
or Disposed of (D)

5. Amount of
Securities
Beneficially
Owned at End
of Month

6. Owner-
ship
Form:
Direct
(D) or
Indirect
(I)

7. Nature
of
Indirect
Bene-
ficial
Owner-
ship

(Month/
Day/Year)

Code

V

Amount

A/D

Price

Common Stock

9/30/99

P

3,000

A

$3.437

D

Common Stock

9/30/99

P

2,000

A

$3.500

5,000

D

Table II

Derivative Securities Acquired, Disposed of, or Beneficially Owned

1. Title of Derivative
Security

2. Conver-
sion or
Exercise
Price of
Deriva-
tive
Security

3. Trans-
action
Date

4. Transaction
Code

5. Number of Derivative
Securities Acquired
(A) or Disposed of (D)

6. Date Exercisable
and Expiration
Date
(Month/Day/Year)

(Month/
Day/Year)

Code

V

(A)

(D)

Date
Exercisable

Expiration
Date

Table II

Derivative Securities Acquired, Disposed of, or Beneficially Owned (Continued)

7. Title and Amount of Underlying
Securities

8. Price of
Derivative
Security

9. Number of Derivative
Securities Beneficially
Owned at End
of Month

10. Ownership Form
of Derivative
Security: Direct
(D) or Indirect (I)

11. Nature
of
Indirect
Beneficial
Ownership

Title

Amount or
Number of
Shares